Impacto de la implementación de un protocolo de sedoanalgesia en una unidad de cuidados intensivos pediátricos / Impact of the implementation of a sedation and analgesia protocol in a pediatric intensive care unit

Introducción. La adecuada sedación y analgesia es fundamental en el tratamiento de pacientes que requieren asistencia ventilatoria mecánica (AVM). Se recomienda la utilización de protocolos y su monitoreo; son dispares los resultados reportados sobre adhesión e impacto. Objetivos. Evaluar el impacto de la implementación de un protocolo de sedoanalgesia sobre el uso de benzodiacepinas, opioides y evolución en la unidad de cuidados intensivos pediátricos (UCIP), en pacientes que requieren AVM mayor a 72 horas. Métodos. Estudio tipo antes-después, no controlado, en la UCIP de un hospital pediátrico. Se desarrolló en 3 etapas: preintervención de diagnóstico situacional (de abril a septiembre de 2019), intervención y posintervención de implementación del protocolo de sedoanalgesia, educación sobre uso y monitorización de adherencia y su impacto (de octubre de 2019 a octubre de 2021). Resultados. Ingresaron al estudio 99 y 92 pacientes en las etapas pre- y posintervención, respectivamente. Presentaron mayor gravedad, menor edad y peso en el período preintervención. En la comparación de grupos, luego de ajustar por gravedad y edad, en la etapa posintervención se reportó una reducción en los días de uso de opioides en infusión continua (6 ± 5,2 vs. 7,6 ± 5,8; p = 0,018) y los días de uso de benzodiacepinas en infusión continua (3,3 ± 3,5 vs. 7,6 ± 6,8; p = 0,001). No se observaron diferencias significativas en los días de AVM y en los días totales de uso de benzodiacepinas. Conclusión. La implementación de un protocolo de sedoanalgesia permitió reducir el uso de fármacos en infusión continua.

Introduction. Adequate sedation and analgesia is essential in the management of patients requiring mechanical ventilation (MV). The implementation of protocols and their monitoring is recommended; mixed results on adherence and impact have been reported. Objectives. To assess the impact of the implementation of a sedation and analgesia protocol on the use of benzodiazepines, opioids, and evolution in the pediatric intensive care unit (PICU) in patients requiring MV for more than 72 hours. Methods. Before-and-after, uncontrolled study in the PICU of a children's hospital. The study was developed in 3 stages: pre-intervention for situational diagnosis (from April to September 2019), intervention, and post-intervention for implementation of a sedation and analgesia protocol, education on use, and monitoring of adherence and impact (from October 2019 to October 2021). Results. A total of 99 and 92 patients were included in the study in the pre- and post-intervention stages, respectively. Patients had a more severe condition, were younger, and had a lower weight in the preintervention period. After adjusting for severity and age, the group comparison in the post-intervention stage showed a reduction in days of continuous infusion of opioids (6 ± 5.2 versus 7.6­5.8, p = 0.018) and days of continuous infusion of benzodiazepines (3.3 ± 3.5 versus 7.6 ± 6.8, p = 0.001). No significant  differences were observed in days of MV and total days of benzodiazepine use. Conclusion. The implementation of a sedation and analgesia protocol resulted in a reduction in the use of continuous infusion of drugs.

The Effect of Postoperative Hepatic Fibrosis Factors on Morbidity in Mitral Valve Replacement Surgery: A Single Center Ten Years� Experience

Background: Previous studies have shown that hepatic fibrosis indices and rates can be used to predict cardiovascular mortality and morbidity. Our aim with this study was to investigate the effect of aspartate aminotransferase/alanine aminotransferase (AST/ALT) ratio and fibrosis?4 (FIB?4) index calculated with ALT, AST, and platelet biomarkers, which are simple, fast, and relatively inexpensive and were used in previous studies to predict cardiovascular disease prognosis, on the prediction of postoperative morbidity and early mortality after mitral valve replacement (MVR) surgery. Methods: By scanning the hospital electronic health record system, 116 patients who underwent isolated MVR or MVR + tricuspid valve intervention were identified from 178 patients who underwent MVR with the standard sternotomy procedure between 2011 and 2021. The study was completed with 81 of these patients. Patients were divided into AST/ALT <2 (Group 1) and >2 (Group 2). In addition, the same patients were divided into FIB?4 index <3.25 (Group 3) and >3.25 (Group 4), and a total of four groups were formed. Results: The mean age of Group 2 was significantly higher than Group 1 (P = 0.049). In addition, the mean age of Group 4 was significantly higher than Group 3 (P = 0.003). Postoperative complications did not differ between Groups 1 and 2 (P > 0.05). While noninvasive mechanincal ventilation (NIMV) requirements did not differ between Groups 3 and 4 (P > 0.05), MV duration and intensive care unit stay were significantly longer in Group 4 (P < 0.05). Conclusion: The AST/ALT ratio, which has been shown to be a predictor of cardiovascular mortality in various studies, was not useful in predicting mortality and morbidity in our study. However, a high FIB?4 index, another hepatic fibrosis index, was found to be associated with increased perioperative bleeding, duration of mechanical ventilation, and cardiac intensive care unit stay, which are important criteria in the prediction of morbidity in cardiovascular surgery.

Conocimientos de enfermería sobre medidas de prevención en neumonía asociada a ventilación mecánica / Nursing knowledge about preventive measures in pneumonia associated with mechanical ventilation

Determinar el conocimiento del personal de enfermería respecto a medidas de prevención de neumonía asociada a ventilación mecánica y manejo de alimentación enteral en pacientes ingresados a la UCI de un hospital público. Metodología: estudio descriptivo, de corte transversal. La muestra fue representada por personal de enfermería de terapia intensiva de un hospital público de Resistencia- Chaco (n=75), seleccionados mediante muestreo no probabilístico por conveniencia durante el periodo de estudio. Se diseñó un instrumento de recolección de datos con las variables en estudio. Se respetaron los principios bioéticos de la Declaración de Helsinki. Resultados: Respecto a los conocimientos sobre las medidas de precauciones estándar, se observó que referente a la utilización de EPP en la asistencia a pacientes ventilados, un 48% de los mismos presento un conocimiento regular, en los momentos de aplicación del lavado de manos, el 44% mostró un conocimiento deficiente. Sobre el manejo de tubo endotraqueal y ventilador mecánico, se observó un nivel de regular en cuanto a conocimientos sobre la correcta fijación del TET (56%); sobre el manejo del respirador y sus conexiones (64%); manejo de humidificadores (60%)y recambios de los circuitos (64%), en contraposición con Dos Santos8 y Granizo-Taboada, Wagner Thomas6 quienes revelaron buenas prácticas de enfermería para el mantenimiento de la oxigenación en pacientes bajo ventilación mecánica. Conclusión: Se destaca en líneas generales, que el personal de enfermería presento conocimiento regular, enfatizando la necesidad de capacitación de los mismos sobre las medidas de prevención de neumonía asociada a ventilación mecánica[AU]

To determine the knowledge of nursing staff regarding prevention measures for pneumonia associated with mechanical ventilation and management of enteral feeding in patients admitted to the ICU of a public hospital. Methodology: descriptive, cross-sectional study. The sample was represented by intensive care nursing staff from a public hospital in Resistencia-Chaco (n=75), selected by non-probabilistic convenience sampling during the study period. A data collection instrument was designed with the variables under study. The bioethical principles of the Declaration of Helsinki were respected. Results: Regarding the knowledge about standard precaution measures, it was observed that regarding the use of PPE in the care of ventilated patients, 48% of them presented regular knowledge, at the times of application of hand washing, 44% showed poor knowledge. Regarding the management of the endotracheal tube and mechanical ventilator, a fair level was observed in terms of knowledge about the correct fixation of the ETT (56%); about the management of the respirator and its connections (64%); management of humidifiers (60%) and replacement of circuits (64%), in contrast to Dos Santos8 and Granizo-Taboada, Wagner Thomas6 who revealed good nursing practices for maintaining oxygenation in patients under mechanical ventilation. Conclusion: It stands out in general lines, that the nursing staff presented regular knowledge, emphasizing the need for their training on the prevention measures of pneumonia associated with mechanical ventilation[AU]

Verificar o conhecimento da equipe de enfermagem sobre as medidas de prevenção de pneumonia associada à ventilação mecânica e manejo da alimentação enteral em pacientes internados na UTI de um hospital público. Metodologia: estudo descritivo, transversal. A amostra foi representada por enfermeiros intensivistas de um hospital público de Resistencia-Chaco (n=75), selecionados por amostragem não probabilística por conveniência durante o período do estudo. Foi elaborado um instrumento de coleta de dados com as variáveis em estudo. Os princípios bioéticos da Declaração de Helsinque foram respeitados. Resultados: Em relação ao conhecimento sobre medidas de precaução padrão, observou-se que quanto ao uso de EPI no cuidado de pacientes ventilados, 48% deles apresentaram conhecimento regular, nos momentos de aplicação da lavagem das mãos, 44% apresentaram conhecimento ruim. Em relação ao manejo do tubo endotraqueal e do ventilador mecânico, observou-se nível razoável de conhecimento sobre a fixação correta do TET (56%); sobre o manejo do respirador e suas conexões (64%); manejo de umidificadores (60%) e troca de circuitos (64%), ao contrário de Dos Santos8 e Granizo-Taboada, Wagner Thomas6 que revelaram boas práticas de enfermagem para manutenção da oxigenação em pacientes sob ventilação mecânica. Conclusão: Destaca-se em linhas gerais, que a equipe de enfermagem apresentou conhecimento regular, ressaltando a necessidade de seu treinamento sobre as medidas de prevenção de pneumonia associada à ventilação mecánica[AU]

Botulismo del lactante: estudio descriptivo en una unidad de cuidados intensivos pediátricos / Infant botulism: a descriptive study in a pediatric intensive care unit

Introducción. El botulismo del lactante (BL) es la forma más frecuente de botulismo humano en Argentina. El objetivo es describir aspectos esenciales del diagnóstico y tratamiento de pacientes con BL internados en el servicio de terapia intensiva pediátrica (STIP). Métodos. Estudio observacional, descriptivo y retrospectivo. Se utilizó la base de datos del STIP con diagnóstico de BL en el período 2005-2020. Se registraron variables demográficas, métodos de diagnóstico, días de asistencia respiratoria mecánica convencional (ARMC), de ventilación no invasiva (VNI), estadía en STIP, mortalidad al alta hospitalaria. Resultados. Se registraron 21 pacientes con BL; 14 pacientes fueron varones, con una mediana de edad de 5 meses (RIC 2-6 m). El diagnóstico se realizó mediante técnica de bioensayo y se detectó la toxina en suero en 12 pacientes. Uno solo no requirió ARMC; 1 paciente fue traqueostomizado; 18 pacientes recibieron antibióticos; 5 recibieron VNI. Ningún paciente recibió antitoxina y no hubo fallecidos. La mediana de estadía hospitalaria fue 66 días (RI: 42-76); de internación en STIP, 48 días (RI: 29-78); y de ARMC, 37 días (RI: 26-64). La demora en la confirmación diagnóstica fue 15,8 ± 4,8 días. Conclusiones. La totalidad de los pacientes fueron diagnosticados con la técnica de bioensayo, que generó un tiempo de demora diagnóstica que excede los lapsos recomendados para la administración del tratamiento específico. Ningún paciente recibió tratamiento específico. El BL presentó baja mortalidad, pero tiempos de ARM e internación prolongados, que se asocian a infecciones sobreagregadas y uso frecuente de antibióticos.

Introduction. Infant botulism (IB) is the most common form of human botulism in Argentina. Our objective was to describe the main aspects of diagnosis and management of patients with IB admitted to the pediatric intensive care unit (PICU). Methods. Observational, descriptive, and retrospective study. The PICU database with IB diagnosis in 2005­2020 period was used. Demographic variables, diagnostic methods, days of conventional mechanical ventilation (CMV), non-invasive ventilation (NIV), length of stay in the PICU and mortality upon hospital discharge were recorded. Results. In total, 21 patients with IB were recorded; 14 were male, their median age was 5 months (IQR: 2­6 m). Diagnosis was made by bioassay, and the toxin was identified in the serum of 12 patients. Only 1 patient did not require CMV; 1 patient had a tracheostomy; 18 patients received antibiotics; 5 received NIV. No patient was administered antitoxin and no patient died. The median length of stay in the hospital was 66 days (IQR: 42­76); in the PICU, 48 days (IQR: 29­78); and the median use of CMV, 37 days (IQR: 26­64). The delay until diagnostic confirmation was 15.8 ± 4.8 days. Conclusions. All patients were diagnosed using the bioassay technique, which resulted in a diagnostic delay that exceeds the recommended period for the administration of a specific treatment. No patient received a specific treatment. IB was related to a low mortality, but also to prolonged use of MV and length of hospital stay, which were associated with cross infections and frequent antibiotic use.

Uso de cánula nasal de alto flujo artesanal como oxigenoterapia en insuficiencia respiratoria por COVID-19 / Use of artisanal high flow nasal cannula as oxygen therapy in respiratory failure due to COVID-19

Los riesgos asociados a la neumonía por (SARS-CoV-2) es la generación de insuficiencia respiratoria secundaria que en algunos casos desencadenara al tan temido síndrome de distres respiratorio (SDRA); Informes sobre atención clínica, indican que tiene una incidencia (SDRA) de 3-10 % con necesidad de Asistencia Respiratoria Mecánica (ARM) en pacientes hospitalizados; por lo que dispositivos de oxigenación no invasivos siguen siendo una opción atractiva, de forma inicial. Caso clínico: mujer de 47 años con insuficiencia respiratoria secundario a neumonía por COVID-19, por la gravedad se indica su ingreso a terapia intensiva, pero por razones de falta de unidad es manejada en unidad respiratoria, con el uso de dispositivos de oxigenación de armado ARTESAL, de manera exitosa, con la utilización de CNAF-artesanal, se pretende mejorar el trabajo respiratorio, índices de oxigenación, mientras se da tratamiento a la infección por el COVID-19; el objetivo del presente caso es reportar el presente caso con evolución favorable a la literatura disponible. Discusión: El uso de terapia de oxigenación con dispositivo de Cánula Nasal de Alto Flujo, aún no ha sido normatizado en pacientes con COVID-19, pero existe evidencia clínica sobre los efectos beneficiosos en la insuficiencia respiratoria en neonatos mas no en adultos. Conclusión: El uso temprano de la CNAF-artesanal en la insuficiencia respiratoria resulta muy atractivo, más aún con dispositivo de confección artesanal, da una opción más al paciente fuera de UTI, pudiendo apoyar en evitar la intubación y su ingreso a ventilación mecánica.

The risks associated with pneumonia (SARS-CoV-2) is the generation of secondary respiratory failure that in some cases will trigger the much feared respiratory distress syndrome (ARDS); Reports on clinical care indicate that it has an incidence (ARDS) of 3-10% with the need for Mechanical Respiratory Assistance (ARM) in hospitalized patients; so non-invasive oxygenation devices remain an attractive option, initially. Clinical case: a 47-year-old woman with respiratory failure secondary to covid-19 pneumonia. Due to the severity, her admission to intensive care is indicated, but for reasons of lack of unity, she is managed in a common room, with the use of high-pressure oxygenation devices. ARTISAL assembly, successfully, with the use of CNAF-artisanal, is intended to improve the work of breathing, and oxygenation indices, while treating the infection by COVID-19; The objective of this case is to report the present case with a favorable evolution based on the available literature. Discussion: The use of oxygenation therapy with a High Flow Nasal Cannula device has not yet been standardized in patients with COVID-19, but there is clinical evidence on the beneficial effects in respiratory failure in neonates but not in adults. Conclusion: The early use of the artisan HFNC in respiratory failure is very attractive, even more so with an artisanal device, it gives the patient another option outside the ICU, being able to help avoid intubation and admission to mechanical ventilation.

Clinical Profile, Intensive Care Needs, and Short-Term Outcome of Toxic Shock Syndrome Among Children: A 10-Year Single-Centre Experience from North India

Objective To describe the clinical and laboratory profle, management, intensive care needs, and outcome of children with toxic shock syndrome (TSS) admitted to the pediatric intensive care unit (PICU) of a tertiary care center in North India. Methods This retrospective study was conducted in the PICU of a tertiary care hospital in North India over a period of 10 y (January 2011–December 2020) including children<12 y with TSS (n=63). Results The median (interquartile range, IQR) age was 5 (2–9) y, 58.7% were boys, and Pediatric Risk of Mortality III (PRISM-III) score was 15 (12–17). The primary focus of infection was identifed in 60.3% children, 44.5% had skin and soft tissue infections, and 17.5% (n=11) had growth of Staphylococcus aureus. Common manifestations were shock (100%), rash (95.2%), thrombocytopenia (79.4%), transaminitis (66.7%), coagulopathy (58.7%), and acute kidney injury (AKI) (52.4%); and involvement of gastrointestinal (61.9%), mucus membrane (55.5%), respiratory (47.6%), musculoskeletal (41.3%), and central nervous system (CNS) (31.7%). The treatment included fuid resuscitation (100%), vasoactive drugs (92.1%), clindamycin (96.8%), intravenous immunoglobulin (IVIG) (92.1%), blood products (74.6%), mechanical ventilation (58.7%), and renal replacement therapy (31.7%). The mortality was 27% (n=17). The duration of PICU and hopsital stay was 5 (4–10) and 7 (4–11) d, respectively. Higher proportion of nonsurvivors had CNS involvement, transaminitis, thrombocytopenia, coagulopathy, and AKI; required mechanical ventilation and blood products; and had higher vasoactive–inotropic score. Conclusion TSS is not uncommon in children in Indian setup. The management includes early recognition, intensive care, antibiotics, source control, and adjunctive therapy (IVIG and clindamycin). Multiorgan dysfunction and need for organ supportive therapies predicted mortality.

Mortalidad en adultos con COVID-19: experiencia de la Unidad de Cuidados Intensivos de un Hospital de Tercer Nivel de Paraguay

Introducción: diversos factores pueden influir en la mortalidad de pacientes hospitalizados por COVID-19. Objetivo: determinar la mortalidad y los factores asociados a esta en adultos con COVID-19 hospitalizados en la unidad de cuidados intensivos de un Hospital de Tercer Nivel de Paraguay. Metodología: estudio observacional, descriptivo, de asociación cruzada, de corte transversal y temporalmente retrospectivo. Se incluyó historias clínicas de pacientes adultos, de ambos sexos, que tenían diagnóstico confirmado (por prueba de antígeno y/o PCR) de infección por SARS-CoV-2 y que estaban hospitalizados en la unidad de cuidados intensivos de un Hospital General de Tercer Nivel de Paraguay. Resultados: Se incluyeron 116 pacientes, de los cuales el 54 % correspondió al sexo masculino. La edad media fue de 57±12,9 años. El 51 % tenía hipertensión arterial y el 29 % diabetes mellitus. El requerimiento de ventilación mecánica se dio en un 85% de pacientes. El 75 % de los pacientes ventilados tuvo un desenlace fatal. Se encontró una asociación estadísticamente significativa entre la presencia de infecciones bacterianas y requerimiento de hemodiálisis y el desenlace fatal (p=0,0074 y p=0,00011, respectivamente). La media de las edades de los pacientes fallecidos fue de 59,5 años, mientras que el grupo de pacientes que recibieron el alta desde la unidad de cuidados intensivos arrojó una media de 54,2 años. La diferencia entre estas edades en relación con el óbito fue significativa, con una p<0,05. Discusión: La mortalidad general debido a COVID-19 fue de más de 6 por cada 10 pacientes, siendo más alta en aquellos pacientes con ventilación. Aquellos pacientes que presentaron sobreinfección bacteriana o requirieron de hemodiálisis durante el curso de la hospitalización presentaron un peor desenlace en comparación con los pacientes que no presentaron este tipo de complicaciones.

Introduction: Several factors may influence mortality in patients hospitalized with COVID-19. Objective: This research aimed to determine mortality and associated factors in adults with COVID-19 hospitalized in the intensive care unit of a Third Level Hospital in Paraguay. Methodology: Observational, descriptive of cross-association, cross-sectional, and retrospective study. We included medical records of adult patients, of both sexes, who had a confirmed diagnosis (by antigen and/or PCR test) of SARS-CoV-2 infection and who were hospitalized in the intensive care unit of a Third Level General Hospital in Paraguay. Results: We included 116 patients, 54% of whom were male. The mean age was 57 ± 12.9 years. Of participants, 51% had hypertension and 29% diabetes mellitus. Mechanical ventilation was required in 85% of the patients. Of ventilated patients, 75% had a fatal outcome. A statistically significant association was found between the presence of bacterial infections and hemodialysis requirement and fatal outcome (p=0.0074 and p=0.00011, respectively). The mean age of the deceased patients was 59.5 years, while the group of patients discharged from the intensive care unit had a mean age of 54.2 years. The difference between these ages in relation to death was significant, with a p<0.05. Discussion: Overall mortality due to COVID-19 was more than 6 per 10 patients, being higher in those patients with ventilation. Those patients who presented bacterial superinfection or required hemodialysis during hospitalization had a worse outcome compared to patients who did not present this type of complications.

One-year mortality of hematopoietic stem cell recipients admitted to an intensive care unit in a dedicated Brazilian cancer center: a retrospective cohort study

ABSTRACT BACKGROUND: Hematopoietic stem cell transplantation (HSCT) recipients requiring intensive care unit (ICU) admission early after transplantation have a poor prognosis. However, many studies have only focused on allogeneic HSCT recipients. OBJECTIVES: To describe the characteristics of HSCT recipients admitted to the ICU shortly after transplantation and assess differences in 1-year mortality between autologous and allogeneic HSCT recipients. DESIGN AND SETTING: A single-center retrospective cohort study in a cancer center in Brazil. METHODS: We included all consecutive patients who underwent HSCT less than a year before ICU admission between 2009 and 2018. We collected clinical and demographic data and assessed the 1-year mortality of all patients. The effect of allogeneic HSCT compared with autologous HSCT on 1-year mortality risk was evaluated in an unadjusted model and an adjusted Cox proportional hazard model for age and Sequential Organ Failure Assessment (SOFA) at admission. RESULTS: Of the 942 patients who underwent HSCT during the study period, 83 (8.8%) were included in the study (autologous HSCT = 57 [68.7%], allogeneic HSCT = 26 [31.3%]). At 1 year after ICU admission, 21 (36.8%) and 18 (69.2%) patients who underwent autologous and allogeneic HSCT, respectively, had died. Allogeneic HSCT was associated with increased 1-year mortality (unadjusted hazard ratio, HR = 2.79 [confidence interval, CI, 95%, 1.48-5.26]; adjusted HR = 2.62 [CI 95%, 1.29-5.31]). CONCLUSION: Allogeneic HSCT recipients admitted to the ICU had higher short- and long-term mortality rates than autologous HSCT recipients, even after adjusting for age and severity at ICU admission.

Evaluation of Diaphragmatic Thickness and Dysfunction by Ultrasonography in Mechanically Ventilated Children for Assessment of Extubation Success

Objectives: This study aimed to evaluate diaphragm thickness (DT) and diaphragmatic thickening fraction (DTF) in mechanically ventilated children, and study the association of these measurements with extubation success. Methods: Consecutive children aged one month to 18 years, who required mechanical ventilation (MV) for more than 24 hours at our institution, were enrolled between April, 2019 to October, 2020. Ultrasonographic measurements of DT were documented, and DTF was calculated from baseline (within 24 hours of MV) until 14 days of MV, and up to three days post-extubation. Results: Of the 54 childrenenrolled, 40 underwent planned extubation trial, of which 9 (22.5%) had extubation failure. Pre-extubation and post-extubation DTF between children in extubation-success and extubation-failure groups were comparable (P=0.074). There was no significant difference in the diaphragm atrophy rate between the two groups (P=0.819). Binary logistic regression showed significantly decreased probability of successful extubation with total ventilation duration (P=0.012) and mean DTF% before extubation (P=0.033). Conclusion: Despite evidence of diaphragmatic atrophy in critically ill children receiving mechanical ventilation, there was no significant difference in DTF between extubation success and failure groups.

Factores de riesgo asociados a falla en la extubación en pacientes prematuros en la unidad de cuidados intensivos neonatales / Risk factors associated with extubation failure in premature patients in the neonatal intensive care unit

Resumen Antecedentes: En la unidad de cuidados intensivos neonatales el 47% de prematuros requieren ventilación mecánica (VM), cuyo uso prolongado se asocia con secuelas a largo plazo. Objetivo: Identificar los factores de riesgo para falla en la extubación en prematuros. Material y métodos: Estudio de casos y controles; se tomó como casos las extubaciones fallidas (EF) y como controles las extubaciones exitosas (EE). El fracaso de la extubación se definió como la reintubación dentro de las primeras 72 horas. Resultados: El 46% de prematuros ingresados requirió VM. Se presentaron 12 EF y 27 EE. La proporción de EF fue del 31%. La VM más de 7 días fue del 17% en los casos y del 11% en los controles (OR: 0.6; IC 95%: 0.09-4.32; p = 0.634). La principal causa de reintubación fue por apnea (50%). Conclusiones: Los parámetros establecidos para este estudio no se determinaron como factores de riesgo para extubación fallida. Debido a los números de casos en este estudio, no podemos identificar un buen valor de corte para los factores de riesgo y predictores. Se requieren más estudios a gran escala para confirmar nuestros hallazgos y determinar los valores de corte.

Abstract Background: In the neonatal intensive care unit, 47% of premature infants require mechanical ventilation (MV); its prolonged use is associated with long-term sequelae. Objective: To identify the risk factors for extubation failure in premature infants. Material and methods: Case-control study, taking failed extubations (FE) as cases and successful extubations (SE) as controls. Extubation failure was defined as reintubation within the first 72 hours. Results: 46% of hospitalized premature infants required MV; twelve FE and 27 SE were presented. The proportion of FE was 31%. MV over 7 days was 17% in cases and 11% in controls (OR: 0.6; 95% CI: 0.09-4.32; p = 0.634). The main cause of reintubation was apnea (50%). Conclusions: The parameters established for this study were not determined as risk factors for failed extubation. Due to the case numbers in this study, we are unable to identify a good cut-off value for risk factors and predictors. More large-scale studies are required to confirm our findings and determine cut-off values.

Índice neutrófilo/linfocito en anestesia general con ventilación controlada por volumen versus ventilación controlada por presión: ensayo clínico aleatorizado / Neutrophil/lymphocyte ratio in general anesthesia with volume-controlled ventilation versus pressure-controlled ventilation: a randomized clinical trial

Resumen: Introducción: se ha demostrado que la ventilación mecánica induce la producción de citocinas proinflamatorias. El IN/L es un parámetro sencillo que se utiliza para evaluar el estado inflamatorio. Objetivo: comparar los promedios y porcentajes del índice neutrófilo/linfocito (IN/L) elevado, entre pacientes con anestesia general con ventilación mecánica controlada por volumen (VMCV) y ventilación mecánica controlada por presión (VMCP). Material y métodos: se seleccionaron adultos ≥ 18 años, ASA I-III con cirugía electiva y anestesia general. Ensayo clínico aleatorizado: 25 pacientes con VMCV y 25 con VMCP. A todos los pacientes se les determinó dos biometrías hemáticas: antes y 2 horas después de la cirugía. El IN/L fue medido en forma de razón y dicotómica (< 3 o ≥ 3). Análisis estadístico: se utilizaron las pruebas t de Student, χ2 y McNemar. Resultados: se estudiaron 50 pacientes (27 mujeres y 23 hombres) con un promedio de edad de 47 ± 16 años. El grupo de VMCV tuvo tendencia a presentar valores más bajos de promedios y porcentajes IN/L; sin embargo, no fue estadísticamente significativa (p = 0.06). En la comparación pareada ambos grupos presentaron incremento estadísticamente significativo de los promedios y porcentajes de IN/L. No obstante, el porcentaje de IN/L > 3 en el grupo de VMCP fue de 64%, mientras que en el grupo de VMCV fue de 40%. Conclusiones: la VMCV presenta promedios y porcentajes más bajos del IN/L comparados con VMCP; sin embargo, no fueron estadísticamente significativos.

Abstract: Introduction: it has been shown that mechanical ventilation induces production of proinflammatory cytokines. The Neutrophil-to-lymphocyte ratio (N/L r) is a simple parameter that is used to assess the inflammatory state. Objective: to compare the means and percentages of elevated neutrophil/lymphocyte ratio (N/L r) in patients under general anesthesia with volume-controlled mechanical ventilation (VCMV) and pressure-controlled mechanical ventilation (PCMV). Material and methods: adults ≥ 18 years old, ASA I-III, with elective surgery and general anesthesia. Randomized clinical trial: 25 patients with VCMV and 25 with PCMV. All patients had two blood counts determined: before and 2 hours after surgery. N/L r was measured as a ratio and dichotomous (< 3 or ≥ 3). Statistical analysis: the t-Student, χ2 and McNemar tests were used. Results: 50 patients (27 women and 23 men) with a mean age of 47 ± 16 years (range 18-84 years) were studied. The VCMV group tended to present lower values of means and percentages N/L r, however, it was not statistically significant (p = 0.06). In the paired comparison, both groups presented a statistically significant increase in the means and percentages of N/L r. However, the percentage of N/L r > 3 in the PCMV group was 64%, while in the VCMV group it was 40%. Conclusions: the VCMV presents lower means and percentages of N/L r compared to PCMV, however, they were not statistically significant.

Evidências científicas sobre comunicação com pacientes em unidades de terapia intensiva / Scientific evidence on communication with patients in intensive care units / Evidencia científica sobre la comunicación con pacientes en unidades de tratamiento intensivo

Introdução: O tubo endotraqueal bloqueia as pregas vocais quando o paciente está em ventilação, impossibilitando a fala. Muitos pacientes relatam que lutam para se fazer entender. Pacientes em unidades de terapia intensiva geralmente estão mais conscientes e alertas quando estão em ventilação mecânica do que em anos anteriores devido aos muitos benefícios potenciais de estarem sob menos sedação. Objetivo: avaliar o conhecimento prévio sobre interação e comunicação entre profissionais de saúde e pacientes conscientes e alertas sob ventilação mecânica em unidades de terapia intensiva. Método: Trata-se de uma revisão de literatura seguindo as etapas de uma revisão integrativa. Estudos publicados entre 2017 e 2022 foram identificados em ferramentas e bases de dados: Scielo, Lilacs, Ibecs, Medline e PubMed. A primeira pesquisa retornou 1273 referências únicas. Os critérios de inclusão consistiram em estudos empíricos ou relacionados às interações entre profissionais de saúde e pacientes maiores de 18 anos em ventilação mecânica, escritos em inglês, espanhol ou português. A amostra foi composta por 8 artigos. Os descritores utilizados foram: experiências com comunicação, ventilação mecânica, trocas de comunicação, unidade de terapia intensiva, enfermagem, equipe multidisciplinar. Resultados: Uma variedade de meios de comunicação que parecem ter algum efeito sobre os pacientes devem ser disponibilizados nas unidades de terapia intensiva. Conclusão: Abordagens mais multidisciplinares em estudos futuros podem aprimorar o conhecimento na área. A educação em saúde do pessoal da unidade de terapia intensiva no uso de tais auxílios deve ser um campo prioritário, assim como a implementação de diversos meios de comunicação.

Introduction: The endotracheal tube blocks the vocal folds when the patient is ventilated, making speech impossible. Many patients report that they struggle to make themselves understood. Patients in intensive care units are generally more aware and alert when they are on mechanical ventilation than in previous years because of the many potential benefits of being under less sedation. Objective: To evaluate prior knowledge about interaction and communication between health professionals and conscious patients and alerts under mechanical ventilation in intensive care units. Method: This is a literature review following the steps of an integrative review. Studies published between 2017 and 2022 have been identified in tools and databases: Scielo, Lilacs, Ibecs, Medline and PubMed. The first survey returned 1273 unique references. The inclusion criteria consisted of empirical studies or studies related to interactions between health professionals and patients over 18 years of age on mechanical ventilation, written in English, Spanish or Portuguese. The sample consisted of 8 articles. The descriptors used were: communication experiments, mechanical ventilation, communication exchanges, intensive care unit, nursing, multidisciplinary team. Results: A variety of communication media that appear to have some effect on patients should be made available in intensive care units. Conclusion: More multidisciplinary approaches in future studies can improve knowledge in the area. The health education of the staff of the intensive care unit in the use of such aids should be a priority field, as well as the implementation of various means of communication.

Introducción: el tubo endotraqueal bloquea las uñas de la voz cuando el paciente está en ventilación, haciendo imposible el habla. Muchos pacientes informan que luchan por hacerse entender. Los pacientes en unidades de cuidados intensivos son generalmente más conscientes y alerta cuando están en ventilación mecánica que en años anteriores debido a los muchos beneficios potenciales de estar bajo menos sedación. Objetivo: evaluar el conocimiento previo de la interacción y comunicación entre profesionales de la salud y pacientes conscientes y alertas bajo ventilación mecánica en unidades de cuidados intensivos. Método: Esta es una revisión de la literatura que sigue las etapas de una revisión integradora. Los estudios publicados entre 2017 y 2022 se identificaron en herramientas y bases de datos: Scielo, Lilacs, Ibecs, Medline y PubMed. La primera encuesta arrojó 1273 referencias únicas. Los criterios de inclusión consistieron en estudios empíricos o estudios relacionados con las interacciones entre profesionales de la salud y pacientes mayores de 18 años en ventilación mecánica, escritos en inglés, español o portugués. La muestra consistió en 8 artículos. Los descriptores utilizados fueron: experimentos con comunicación, ventilación mecánica, intercambios de comunicación, unidad de terapia intensiva, enfermería, equipo multidisciplinario. Resultados: En las unidades de cuidados intensivos debe estar disponible una variedad de medios que parecen tener algún efecto en los pacientes. Conclusión: La adopción de enfoques más multidisciplinarios en estudios futuros puede mejorar los conocimientos en la materia. La educación sanitaria del personal de la unidad de cuidados intensivos en el uso de esa ayuda debería ser una esfera prioritaria, al igual que la aplicación de diversos medios de comunicación.

Preservation and functional maintenance of lung allograft / 器官移植

As the final resolution for end-stage lung disease, lung transplantation can not only significantly prolong the survival, but also remarkably improve the quality of life of recipients. In recent decades, with the advancement of surgical techniques, immunosuppressants and post-transplantation management, the quantity of lung transplantation has been surged around the globe. However, the shortage of donor lung has severely restricted the development of lung transplantation. It is necessary to develop innovative approaches to expand the donor pool. The number of donors and effective preservation and functional maintenance of potential donor lungs play a key role in expanding the donor pool. The quality of donor lung is a critical precondition to ensure the long-term survival of lung transplant recipients. Preservation and functional maintenance of donor lung are of significance for guaranteeing the quality of lung allograft. In this article, research progresses on the management and maintenance of donor lung before procurement, the procurement of donor lung and the preservation and functional maintenance of lung allograft were reviewed, aiming to provide reference for the development of lung transplantation in clinical practice.

Effect of the prone position on recruitability in acute respiratory distress syndrome due to COVID-19 pneumonia

SUMMARY OBJECTIVE: This study aimed to assess the effect of prone position on oxygenation and lung recruitability in patients with acute respiratory distress syndrome due to COVID-19 receiving invasive mechanical ventilation. METHODS: This prospective study was conducted in the intensive care unit between December 10, 2021, and February 10, 2022. We included 25 patients admitted to our intensive care unit with acute respiratory distress syndrome due to COVID-19 who had undergone prone position. We measured the respiratory system compliance, recruitment to inflation ratio, and PaO2/FiO2 ratio during the baseline supine, prone, and resupine positions. The recruitment to inflation ratio was used to assess the potential for lung recruitability. RESULTS: In the prone position, PaO2/FiO2 increased from 82.7 to 164.4 mmHg (p<0.001) with an increase in respiratory system compliance (p=0.003). PaO2/FiO2 decreased to 117 mmHg (p=0.015) in the resupine with no change in respiratory system compliance (p=0.097). The recruitment to inflation ratio did not change in the prone and resupine positions (p=0.198 and p=0.621, respectively). In all patients, the median value of respiratory system compliance during supine was 26 mL/cmH2O. In patients with respiratory system compliance<26 mL/cmH2O (n=12), respiratory system compliance increased and recruitment to inflation decreased from supine to prone positions (p=0.008 and p=0.040, respectively), whereas they did not change in those with respiratory system compliance ≥26 mL/cmH2O8 (n=13) (p=0.279 and p=0.550, respectively) (ClinicalTrials registration number: NCT05150847). CONCLUSION: In the prone position, in addition to the oxygenation benefit in all patients, we detected lung recruitment based on the change in the recruitment to inflation ratio with an increase in respiratory system compliance only in acute respiratory distress syndrome due to COVID-19 patients who have <26 mL/cmH2O baseline supine respiratory compliance.

Traqueostomía en prematuros con displasia broncopulmonar grave / Tracheostomy in premature infants with severe bronchopulmonary dysplasia

Los recién nacidos con displasia broncopulmonar dependientes de ventilación mecánica a las 36 semanas, corresponden en general a prematuros menores de 27 semanas con morbilidad grave: enterocolitis, infecciones, retinopatía, retraso en el crecimiento y secuelas del neurodesarrollo. Si la extubación no es posible entre las 40 y 50 semanas, se indica una traqueostomía, normalmente acompañada de una gastrostomía. La decisión depende del apoyo ventilatorio, de la morbilidad asociada (neurológica, hipertensión pulmonar, lesiones de la vía aérea) y del grado de desnutrición. La traqueostomía optimiza el manejo ventilatorio, disminuye la necesidad de sedación, facilita la movilidad, la neurorrehabilitación y el alta al hogar en ventilación domiciliaria. La edad óptima de ejecución no está estandarizada, pero hay evidencia que muestra beneficios en el neurodesarrollo si se realiza antes de los 120 días de vida. La mayoría de los prematuros traqueostomizados son manejados en domicilio y a los 5 años ya se encuentran decanulados.

Newborns with bronchopulmonary dysplasia (BPD) dependent on mechanical ventilation at 36 weeks, generally correspond to newborns younger than 27 weeks with severe morbidity: enterocolitis, infections, retinopathy, growth retardation and neurodevelopmental sequelae. If extubation is not possible at 40-50 weeks post menstrual age, a tracheostomy is indicated, usually accompanied by a gastrostomy. The decision depends on ventilatory support, associated morbidity (neurological, pulmonary hypertension, airway lesions) and the degree of malnutrition. Tracheostomy optimizes ventilatory management, reduces the need for sedation, facilitates mobility, neurorehabilitation, and discharge on home ventilation. The optimal age for tracheostomy is not standardized, but there is evidence showing neurodevelopmental benefits if it is performed before 120 days. Most tracheostomized newborns are managed at home and at 5 years of age they are already decannulated.

Avaliação da gravidade (pim ii), funcionalidade (fss) e de desconforto respiratório (bsa) nos impactos e desfechos da internação hospitalar em utip / Assessment of severity (pim ii), functionality (fss) and of respiratory distress (bsa) in the impacts and outcomes of hospital admission in utip / Valoración de la gravedad (pim ii), funcionalidad (fss) y de la dificultad respiratoria (bsa) en los impactos y resultados del ingreso hospitalario en utip

Objetivo: identificar o perfil de admissões e o impacto nos desfechos de crianças internadas em uma terapia intensiva pediátrica e comparar os escores de gravidade, funcionalidade e de desconforto respiratório avaliados respectivamente pelas escalas (PIM II, FSS e BSA). Métodos: Estudo de caráter descritivo, retrospectivo, quantitativo de amostragem censitária. Ferramentas de avaliação: Pediatric Index of Mortality - PIM II, Functional Status Scoret -FSS, Boletim de Silverman-Andersen -BSA e avaliação de prontuários médicos e assistenciais. Resultados: 257 crianças menores de 12 anos foram incluídas no estudo durante todo o ano de 2019. A maioria 56% (n 143) eram menores de um ano e masculino 64 % (n 164) por causas respiratórias 60,05 % (n 155). A mortalidade foi de 9,8% (n 25), e a quantidade média de dias de ventilação mecânica foi de 4,57 dias ± 1,31. A idade não influenciou na quantidade de dias de ventilação mecânica (p<0.05), e o BSA avaliado isoladamente, não se associou a necessidade imediata de intubação (p<0.05), os pacientes do desfecho óbito ficaram em média 8,88 e ±13,04 dias internados, e no desfecho alta 4,73 ±6,63 dias. O PIM II pode ser utilizado para o risco de óbito (p <0,05) e valores maiores ou iguais a 21,58 % foram associados a óbitos e menores ou iguais a 6,65 % foram associados à alta. A FSS dos 257 pacientes na admissão foram: normal (147), disfunção leve (37), moderada (47) e grave (26); na alta hospitalar a FSS foi: normal (178), leve (21), moderada (25) e grave (8) mostrando que grau de funcionalidade normal e leve na admissão esta significativamente associado com a alta hospitalar (p< 0,001). Conclusão: O escore de gravidade PIM II foram compatíveis com os desfechos óbito ou alta, as variações no escore BSA para necessidade de ventilação mecânica não estão associados com a idade e com grau do escore. A funcionalidade mais adequada na admissão está associada ao desfecho alta, e os pacientes em sua maioria saem funcionais.

Objective: To identify the profile of admissions and the impact on outcomes of children admitted to a pediatric intensive care unit and to compare severity, functionality and respiratory distress scores assessed respectively by the scales (PIM II, FSS and BSA). Methods: This was a descriptive, retrospective, quantitative study with census sampling. Assessment tools: Pediatric Index of Mortality - PIM II, Functional Status Scoret -FSS, Silverman-Andersen Bulletin -BSA and assessment of medical and health care records. Results: 257 children under the age of 12 years were included in the study throughout 2019. The majority 56% (n 143) were under one year and male 64 % (n 164) from respiratory causes 60.05 % (n 155). Mortality was 9.8% (n 25), and the average amount of days on mechanical ventilation was 4.57 days ± 1.31. Age had no influence on the number of days of mechanical ventilation (p<0.05), and the BSA assessed alone was not associated with the immediate need for intubation (p<0.05), the patients in the outcome death were hospitalized for an average of 8.88 ±13.04 days, and in the discharge outcome 4.73 ±6.63 days. The PIM II can be used for the risk of death (p <0.05) and values greater than or equal to 21.58 % were associated with death and less than or equal to 6.65 % were associated with discharge. The FSS of the 257 patients at admission were: normal (147), mild (37), moderate (47) and severe (26) dysfunction; at hospital discharge the FSS was: normal (178), mild (21), moderate (25) and severe (8) showing that the degree of normal and mild functionality at admission was significantly associated with hospital discharge (p < 0.001). Conclusion: The PIM II severity scores were compatible with the outcomes death or discharge, the variations in BSA score for mechanical ventilation need were not associated with age and score level. The most adequate functionality at admission is associated with the outcome discharge, and most patients leave the hospital functional.

Objetivo: Identificar el perfil de ingreso y el impacto en los resultados de los niños ingresados en una unidad de cuidados intensivos pediátricos y comparar las puntuaciones de gravedad, funcionalidad y distrés respiratorio evaluadas respectivamente por las escalas (PIM II, FSS y BSA). Métodos: Se trató de un estudio descriptivo, retros- pectivo y cuantitativo con muestreo censal. Instrumentos de evaluación: Índice de Mor- talidad Pediátrica - PIM II, Functional Status Scoret -FSS, Boletín de Silverman-Ander- sen -BSA y evaluación de historias clínicas y asistenciales. Resultados: 257 niños meno- res de 12 años fueron incluidos en el estudio a lo largo de 2019. La mayoría 56% (n 143) eran menores de un año y varones 64% (n 164) de causas respiratorias 60,05% (n 155). La mortalidad fue del 9,8% (n 25) y la media de días con ventilación mecánica fue de 4,57 días ± 1,31. La edad no influyó en el número de días de ventilación mecánica (p<0,05), y el BSA evaluado por sí solo no se asoció con la necesidad inmediata de intu- bación (p<0,05), los pacientes en el resultado muerte estuvieron hospitalizados una media de 8,88 ±13,04 días, y en el resultado alta 4,73 ±6,63 días. El PIM II se puede utilizar para el riesgo de muerte (p <0,05) y los valores mayores o iguales a 21,58 % se asociaron con la muerte y menores o iguales a 6,65 % se asociaron con el alta. La SFS de los 257 pacientes al ingreso fue: normal (147), disfunción leve (37), moderada (47) y grave (26); al alta hospitalaria la SFS fue: normal (178), leve (21), moderada (25) y grave (8) mos- trando que el grado de funcionalidad normal y leve al ingreso se asoció significativamente con el alta hospitalaria (p < 0,001). Conclusiones: Las puntuaciones de gravedad del PIM II fueron compatibles con los resultados muerte o alta hospitalaria, las variaciones en la puntuación del BSA para la necesidad de ventilación mecánica no se asociaron con la edad y el nivel de puntuación. La funcionalidad más adecuada al ingreso se asocia con el resultado alta, y la mayoría de los pacientes salen del hospital funcionales.

Effect of intraoperative alveolar recruitment maneuver on intraoperative oxygenation and postoperative pulmonary function tests in patients undergoing robotic-assisted hysterectomy: a single-blind randomized study

Abstract Background Robotic-Assisted Hysterectomies (RAH) require Trendelenburg positioning and pneumoperitoneum, which further accentuate alteration in respiratory mechanics induced by general anesthesia. The role of Recruitment Maneuver (RM) as a lung-protective strategy during intraoperative surgical settings has not been much studied. We planned this study to evaluate the effect of RM on perioperative oxygenation and postoperative spirometry using PaO2/FiO2 and FEV1/FVC, respectively in patients undergoing RAH. Methods Sixty-six ASA I‒II female patients scheduled for elective RAH were randomized into group R (recruitment maneuver, n = 33) or group C (control, n = 33). Portable spirometry was done one day before surgery. Patients were induced with general anesthesia, and mechanical ventilation started with volume control mode, with Tidal Volume (TV) of 6-8 mL.kg−1, Respiratory Rate (RR) of 12 min, inspiratory-expiratory ratio (I: E ratio) of 1:2, FiO2 of 0.4, and Positive End-Expiratory Pressure (PEEP) of 5 cmH2O. Patients in group R received recruitment maneuvers of 30 cmH2O every 30 minutes following tracheal intubation. The primary objectives were comparison of oxygenation and ventilation between two groups intraoperatively and portable spirometry postoperatively. Postoperative pulmonary complications, like desaturation, pulmonary edema, pneumonia, were monitored. Results Patients who received RM had significantly higher PaO2 (mmHg) (203.2+-24.3 vs. 167.8+-27.3, p < 0.001) at T2 (30 min after the pneumoperitoneum). However, there was no significant difference in portable spirometry between the groups in the postoperative period (FVC, 1.40 ± 0.5 L vs. 1.32 ± 0.46 L, p= 0.55). Conclusion This study concluded that intraoperative recruitment did not prevent deterioration of postoperative spirometry values; however, it led to improved oxygenation intraoperatively.

Costo-efectividad de la oxigenación con membrana extracorpórea en pacientes con síndrome de dificultad respiratoria aguda en Colombia / Cost-effectiveness of extracorporeal membrane oxygenation in patients with acute respiratory distress syndrome in Colombia

Introducción. La terapia con oxigenación con membrana extracorpórea es costosa y, aunque existe existen indicios en la literatura de que puede ser una intervención costo-efectiva en los países desarrollados, hay dudas sobre su costo-efectividad en un país con un producto interno bruto per cápita bajo, como Colombia. Objetivo. Determinar el incremento de la relación costo-efectividad de la terapia con oxigenación con membrana extracorpórea en pacientes con síndrome de dificultad respiratoria aguda en Colombia. Materiales y métodos. Se eligieron pacientes adultos con diagnóstico de síndrome de dificultad respiratoria aguda para el análisis de costo-efectividad desde la perspectiva del sistema de salud. Se compararon aquellos pacientes con asistencia respiratoria mecánica con volúmenes bajos con aquellos tratados con oxigenación con membrana extracorpórea. Se determinaron los costos médicos directos de la atención y el incremento de la relación costo-efectividad a los 6 meses. Resultados. El costo esperado por paciente en asistencia respiratoria mecánica protectora fue de COP$ 17'609.909. El costo del soporte mediante terapia de oxigenación con membrana extracorpórea fue de COP$ 98'784.116. La relación de costo-efectividad promedio fue de COP$ 141'662.435 por cada vida salvada (USD$ 41.276). Conclusiones. El soporte con terapia de oxigenación con membrana extracorpórea tuvo un costo promedio de COP$ 141'662.435 por cada vida salvada, equivalente a USD$ 41.276 dólares y el incremento de la relación costo-efectividad fue de COP$ 608'783.750 (USD$ 177.384), casi diez veces superior a la regla de decisión de 3 PBI per cápita (COP$ 59'710.479).

Introduction: Extracorporeal membrane oxygenation therapy is expensive. There is evidence in the literature that it can be a cost-effective intervention in developed countries; however, in countries with low gross domestic product per capita, such as Colombia, there are still some doubts. Objective: To determine the incremental cost-effectiveness ratio of extracorporeal membrane oxygenation in patients with acute respiratory distress syndrome in Colombia. Materials and methods: Cost-effectiveness analysis in healthcare in relation to adult patients diagnosed with acute respiratory distress syndrome with mechanical ventilation with low volumes compared to extracorporeal membrane oxygenation. The direct medical costs and the incremental cost-effectiveness ratio were determined at 6 months. Results: The expected cost per patient on protective mechanical ventilation was COP$ 17,609,909. The cost of extracorporeal membrane oxygenation therapy support in surviving patients was COP$ 98,784,116. The average cost-effectiveness ratio of extracorporeal membrane oxygenation was COP$ 141,662,435 for each life saved (USD$ 41,276). Conclusions: Support with extracorporeal membrane oxygenation therapy had an average cost of COP$ 141,662,435 for each life saved equivalent to USD$ 41,276. The incremental cost-effectiveness ratio COP$ was 608,783,750 (USD$ 177,384); almost ten times higher than the decision rule of three gross domestic product per capita (COP$ 59,710,479).

Supervivencia y decanulación a los 90 días luego de traqueostomía por dilatación percutánea en unidad de cuidados intensivos COVID-19 / Survival and decannulation at 90 days after percutaneous dilation tracheostomy in the COVID-19 intensive care unit

Resumen Introducción: La traqueostomía (TQT) es el procedimiento quirúrgico más frecuentemente realizado en pacientes COVID-19. La tasa de supervivencia y decanulación en Argentina se desconoce. El objetivo principal de este estudio fue evaluar la mortalidad y la tasa de decanulación al día 90 de realizada la TQT percutánea. Secundariamente se evaluó la tasa de lesión en la vía aérea, días de ventilación mecánica invasiva (VMI) y días de internación en unidad de cuidados intensivos (UCI). Métodos: Estudio observacional analítico de cohorte prospectiva que incluyó 95 pacientes mayores de 18 años infectados por SARS-CoV-2 ingresados de forma consecutiva a la UCI con requerimiento de VMI y TQT percutánea en el periodo compren dido entre 1 de febrero al 31 de julio del 2021. Resultados: La mortalidad fue del 66.3%. De los supervivientes se logró decanular al 67%. Los supervivientes fueron más jóvenes [media 50.6 (DE 10.2) años versus media 58.9 (DE 13.4) años; p = 0.001] y presentaron puntajes más bajos de índice de Charlson [mediana 1 (RIQ 0-2) versus 2 (1-3) puntos; p = 0.007]. Los pacientes TQT antes del día 10 desde el inicio de VMI tuvieron menos días de VMI y menor estadía en UCI, p < 0.01 y p = 0.01 respectivamente. El índice de Charlson se identificó como factor independiente de mortalidad a los 90 días y de decanulación a los 90 días. Discusión: En nuestra cohorte de pacientes fueron los más jóvenes y con menos comorbilidades los que se beneficiaron con la TQT. El índice de Charlson podría utilizarse como marcador pronóstico en esta población de pacientes.

Abstract Introduction: Tracheostomy (TCT) is the most frequently performed surgical procedure among COVID-19 patients. In Argentina, survival and decannulation rates are unknown. The main objectives of this study were to evaluate mortality and decannulation rates after 90 days of the percutaneous TCT performance. Secondarily, airway injury rate, days on invasive mechanical ventilation (IMV) and days of hospitalization in the intensive care unit (ICU) were also evaluated. Methods: This observational analytic prospective cohort study included patients over 18 years old with SARS-CoV-2 who were admitted into the ICU requiring IMV and percutaneous TCT in the period covering from 1 February 2021 to 31 July 2021. Results: the mortality rate in 95 patients was 66.3%. Among the survivors, 67% were decannulated. The youngest patients were the ones who survived [mean 50.6 (SD 10.2) years versus mean 58.9 (SD 13.4) years; p = 0.001] and presented lower Charlson index scores [median 1 (IQR 0-2) versus 2 (1-3) points; p = 0.007]. Patients who were tracheostomized ten days before the start of IMV were fewer days on IMV and had a shorter stay in the ICU, p < 0.01 and p = 0.01, respectively. Charlson Index was identified as an independent factor of mortality for both decannulation mortality at 90 days. Discussion: In our cohort of patients, those who were younger and presented less c omorbidities benefited from TCT. Charlson Index could be used as a prognostic marker among this patient population.

Mortality of Elderly Patients Supported by Mechanical Ventilation at a General Critical Care Unit in a Tertiary Care Centre

Background : There has been a steady rise in the geriatric population in India and increasing number of elderly patients are being admitted in Critical Care Unit (CCU). They need mechanical ventilation during their hospital stay. Hence, there is continued need for evaluation and research to develop a validating scoring systems used to predict the outcome of CCU patients supported by mechanical ventilation. Objective : Analysis to predict the outcome (survival or mortality) of mechanically ventilated elderly patients in different age groups at the CCU. Material and Method : A Prospective observational study was done in CCU for a period of one year. A group of 40 elderly ventilated patients greater than 60 years of age (Group 1-elderly case group) and another group of 40 ventilated patients less than 60 years of age (Group-2- control group) were included in the study. A clinical database was collected which included age, sex, Acute Physiology and Chronic health Evaluation II (APACHE II) score and an Sequential Organ Failure Assessment (SOFA) scores were calculated in the first 24 hours of ventilation,indication of mechanical ventilation, co-morbidity, according to the Charlson Comorbidity Index (CCI), functional capacity according to the Barthel Index (BI). Patients outcome (survival or mortality) were analyzed. All the patients in two groups were on ventilation support. Result : In case group (n=40), mortality was 55%. In control group (n=40), mortality was 52.5%. On comparison of outcome between two groups (case with control group) the difference was not statistically significant (p= 0.8225). In case group, association of outcome to different age groups (60-65 years, 66-75years, more than75years) (p=0.3357) andto gender (p=0.3854) was not statistically significant. Multivariate logistic regression analysis of the study variables showed APACHE II score to be statistically significant for outcome (p=0.0229). Conclusion : Mortality of elderly patients supported by mechanical ventilation at CCU were slightly higher(55%) than in mechanically ventilated younger populations (52.5%) though the difference was not statistically significant between two groups (p=0.82). APACHE II, score measured within 24 hours of ventilation was a significant predictor of mortality in the patients on mechanical ventilation.