Mejoría clínica, hemodinámica y de marcadores bioquímicos tras estimulación ventricular desde el área de la rama izquierda / Clinical, hemodynamic and biochemical improvement related to left bundle branch area pacing

Resumen Introducción: La estimulación ventricular derecha puede provocar insuficiencia cardiaca y disfunción ventricular. La estimulación en el área de la rama izquierda (ERI) permite capturar el sistema His-Purkinje. La ERI se ha estudiado en la estimulación ventricular y en la terapia de resincronización cardiaca. La evolución de los péptidos natriuréticos (NT-proBNP) asociada a la ERI no ha sido estudiada hasta el momento. Métodos: Se incluyeron pacientes consecutivos remitidos para implante de marcapasos o terapia de resincronización cardiaca. El implante del electrodo de ERI se realizó siguiendo la técnica descrita por Huang et al. Los pacientes eran sometidos a ecocardiograma y determinación de NT-proBNP antes y cuatro semanas después del procedimiento. Resultados: Se analizaron 50 pacientes con implante exitoso y seguimiento completo. No hubo diferencias significativas entre los umbrales medidos durante el procedimiento y los obtenidos al cabo de 12 semanas. La ERI logró una reducción significativa de la anchura del complejo QRS (148 ± 21 vs. 107 ± 11 ms; p = 0.029). La ERI logró una reducción significativa de la clasificación funcional en el conjunto de la muestra y una reducción significativa de NT-proBNP (2,888.2 ± 510 vs. 1,181 ± 130 pg/ml; p = 0.04). En pacientes con fracción de eyección del ventrículo izquierdo (FEVI) < 50% y asincronía se logró un incremento significativo de la FEVI con la ERI (40.2 ± 7 vs. 55.2 ± 7%; p < 0.001). Conclusiones: La ERI es factible en la mayoría de pacientes y se asocia con una reducción de la duración del complejo QRS. La ERI no condiciona un efecto deletéreo sobre la FEVI a corto-medio plazo; además, en aquellos pacientes con FEVI deprimida y asincronía ventricular permite incrementar la FEVI.

Abstract Background: Right ventricular pacing is associated with risk of heart failure and left ventricular dysfunction. Left bundle branch area pacing (LBBP) has emerged as an alternative method for delivering physiological pacing. The effect of LBBP on N-terminal pro-brain natriuretic peptide (NT-proBNP) has not been investigated. Method: Finally, 50 patients referred for pacemaker implantation were included. LBBP was performed as described previously by Huang et al. Transthoracic echocardiogram and NT-proBNP were performed before and four weeks after the procedure. Results: 50 patients were analyzed. There were not differences between ventricular thresholds during the procedure and 3 months later, LBBP significantly reduced QRS complex duration (148 ± 21 vs. 107 ± 11 ms; p = 0.029). LBBP significantly improved NYHA functional class and reduced NT-proBNP concentration (2888.2 ± 510 vs. 1181 ± 130 pg/ml; p = 0.04). In patients showing left ventricular ejection fraction (LVEF) < 50% and ventricular desynchrony LBBP showed a significant LVEF increase (40.2 ± 7 vs. 55.2 ± 7%; p < 0.001). Conclusions: LBBP was feasible and safe in most of patients. LBBP was associated with reduction in QRS width and with increase in LVEF in patients with ventricular desynchrony, while in patients with normal LVEF it remained unchanged during follow-up.

Papillomacular bundle sparing versus conventional internal limiting membrane peeling for idiopathic macular hole ?400 µm

Purpose: To compare the outcomes of papillomacular bundle (PMB) sparing internal limiting membrane (ILM) peeling (group LP) and conventional ILM peeling (group CP) for treatment of idiopathic macular hole (MH) of ?400 ?m. Methods: Fifteen eyes were included in each group. In group CP, conventional 360° peeling was done, while in group LP, ILM was spared over PMB. The changes in peripapillary retinal nerve fiber layer (pRNFL) thickness and ganglion cell?inner plexiform layer (GC?IPL) thickness were analyzed at 3 months. Results: MH was closed in all with comparable visual improvement. Postoperatively, retinal nerve fiber layer (RNFL) was significantly thinner in the temporal quadrant in group CP. GC?IPL was significantly thinner in the temporal quadrants in group LP, whereas it was comparable in group CP. Conclusion: PMB sparing ILM peeling is comparable to conventional ILM peeling in terms of closure rate and visual gain, with the advantage of less retinal damage at 3 months.

Tetralogy of Fallot with an Anomalous Course of the Brachiocephalic Vein

ABSTRACT Clinical data: Infant, 11-month-old, male, diagnosis of Tetralogy of Fallot with retrotracheoesophageal course of the brachiocephalic vein. Usual findings of Tetralogy of Fallot on physical examination. Technical description: Chest radiography showed slightly reduced pulmonary vascular markings and no cardiomegaly. Normal preoperative electrocardiogram with postoperative right bundle branch block. Usual findings of Tetralogy of Fallot on echocardiogram. Postoperative computed tomography angiography confirmed left brachiocephalic vein with anomalous retrotracheoesophageal course, configuring a U-shaped garland vein, in addition to postoperative findings of total correction of Tetralogy of Fallot. Operation: Complete surgical repair was performed with pulmonary valve commissurotomy and placement of bovine pericardial patch to solve right ventricular outflow tract obstruction, pulmonary trunk enlargement, and ventricular septal defect closure. Comments: Systemic venous drainage may show variations in patients with Tetralogy of Fallot. These abnormalities are usually of little clinical relevance, as they are asymptomatic. We presented a rare case of retrotracheoesophageal course of an anomalous left brachiocephalic vein with intraoperative diagnosis, confirmed by imaging during postoperative follow-up, without compromising clinical management or surgical approach.

Exercise Stress Test in The Assessment of Brugada Syndrome Patients

Abstract Brugada syndrome (BS) is a genetic channelopathy, clinically characterized by an increased risk of sudden cardiac death. The diagnosis requires a typical electrocardiographic pattern, and data on risk stratification are limited in the literature. The aim of this study was to conduct a review on the importance of exercise stress test (EST) in risk stratification in BS. Articles were searched in the PubMed, Scielo and Google Scholar databases. From the 200 articles retrieved, eight were included, with a total of 712 patients (95% men) aged between 35 and 60 years. Severe symptoms and ventricular arrhythmias were reported by 256 patients before the EST, with syncope being reported in 70% of cases. The reviewed articles suggest that the EST is a safe method that can help in the diagnosis and risk stratification for malignant arrhythmias in patients with BS. Potential predictors of poor prognosis were: augmentation in ST-segment elevation > 0.5 mV in V1, V2 or V3 in early recovery; J-point elevation in lead > 2mm in aVR in late recovery; heart rate reduction < 40% from maximum heart rate in late recovery and occurrence of ventricular extrasystoles in early recovery.

A single-centre experience of His bundle pacing without electrophysiological mapping system: implant success rate, safety, pacing characteristics and one-year follow up

INTRODUCTION@#Despite the challenges related to His bundle pacing (HBP), recent data suggest an improved success rate with experience. As a non-university, non-electrophysiology specialised centre in Singapore, we report our experiences in HBP using pacing system analyser alone.@*METHODS@#Data of 28 consecutive patients who underwent HBP from August 2018 to February 2019 was retrospectively obtained. The clinical and technical outcomes of these patients were compared between two timeframes of three months each. Patients were followed up for 12 months.@*RESULTS@#Immediate technical success was achieved in 21 (75.0%) patients (mean age 73.3 ± 10.7 years, 47.6% female). The mean left ventricular ejection fraction was 53.9% ± 12.1%. The indications for HBP were atrioventricular block (n = 13, 61.9%), sinus node dysfunction (n = 7, 33.3%) and upgrade from implantable cardioverter-defibrillator to His-cardiac resynchronisation therapy (n = 1, 4.8%). No significant difference was observed in baseline characteristics between Timeframe 1 and Timeframe 2. Improvements pertaining to mean fluoroscopy time were achieved between the two timeframes. There was one HBP-related complication of lead displacement during Timeframe 1. All patients with successful HBP achieved non-selective His bundle (NSHB) capture, whereas only eight patients had selective His bundle (SHB) capture. NSHB and SHB capture thresholds remained stable at the 12-month follow-up.@*CONCLUSION@#Permanent HBP is feasible and safe, even without the use of an electrophysiology recording system. This was successfully achieved in 75% of patients, with no adverse clinical outcomes during the follow-up period.

Changes of ventricular septal myocardial injury current in left bundle branch area pacing / 中国综合临床

Objective:Explore the characteristics of injury current changes in ventricular septal myocardium during left bundle branch area pacing (LBBAP) surgery.Methods:Retrospective analysis of clinical data of patients who underwent permanent pacemaker implantation at The Second People's Hospital of Wuxi in Jiangsu Province from January 2020 to November 2022. Among them, 42 patients were treated with LBBAP (LBBAP group) and 56 patients with Right ventricle septum pacing (RVSP group). Compare the conventional parameters such as threshold, perception, impedance during electrode implantation, damage current values at 0, 5, and 10 minutes before and after electrode rotation, and the correlation between damage current and conventional parameters. The measurement data is represented by xˉ± s, analysis of variance is used for comparison between multiple groups, t-test is used for comparison between two groups, and repeated measurement analysis of variance is used for comparison between two groups at multiple time points; Counting data is represented as an example (%), and inter group comparisons are made using χ 2 Inspection; Pearson correlation analysis was used to analyze the correlation between the two variables. Results:There was no statistically significant difference in pacing threshold, perception, and impedance between the two groups of electrode implantation surgery (all P>0.05). The damage current values at 0, 5, and 10 minutes before and after electrode rotation in the LBBAP group were higher than those in the RVSP group [(7.19±1.26) mV compared to (5.33±0.79) mV, (22.50±3.06) mV compared to (10.85±1.70) mV, (15.75±2.63) mV compared to (8.01±1.09) mV, (9.24±2.00) mV compared to (5.51±0.98) mV]. The damage current values at 0 minutes after electrode rotation in both groups were higher than before electrode rotation, and gradually decreased thereafter, After 10 minutes of electrode placement, the damage current value of the LBBAP group was still higher than the level before electrode rotation (all P<0.05), while there was no statistically significant difference between the RVSP group and the level before electrode rotation ( P>0.05). The damage current value at 0 minutes after the LBBAP group electrode was in place was positively correlated with ventricular septal thickness and left ventricular posterior wall thickness ( r values 0.45 and 0.46, P values 0.003 and 0.002, respectively), and negatively correlated with conventional pacing parameter impedance ( r=-0.32, P=0.037). There was no correlation with threshold and perception ( r values 0.08 and 0.01, P values 0.604 and 0.968, respectively). The damage current value at 0 minutes after the RVSP group electrode was in place was negatively correlated with the threshold ( r=-0.28, P=0.036). Conclusions:The COI value of LBBAP interventricular septum myocardium increased significantly after the electrode was rotated out. The COI value at 0 min after the electrode put in place was positively correlated with the interventricular septum thickness and left ventricular posterior wall thickness, and negatively correlated with the electrode impedance, but there was no correlation with threshold and perception.

Comparison of Outcomes Between All-Inside SingleBundle and Double-Bundle Anterior Cruciate Ligament Reconstruction: A Retrospective Study

@#Introduction: ACL rupture is the most common type of knee injury. The All-inside ACL reconstruction procedure features some distinguished components including closed-socket tunnels with less bone expulsion, double suspensory fixation, and smaller incisions. We aimed to compare the outcomes between the All-inside Single-bundle and the Double-bundle ACL reconstruction techniques. Materials and methods: This study was a retrospective study which analysed the patient-reported and the clinical outcomes on patients who underwent ACL reconstruction between January and December 2020 at Dr Kariadi General Hospital Semarang, Indonesia. We compared the patientreported and the clinical outcomes at 6- and 12-month follow-ups between the All-inside Single-bundle and the Double-bundle groups. The patient-reported outcomes were determined using the IKDC and Tegner-Lysholm scores while the clinical outcomes included the measurement of Thigh Circumference, Single Hop test, Anterior Drawer test, Lachman test, Range of motion, and the patient’s level of return to sport. Results: A total of 24 subjects were divided into two groups, namely the All-inside Single-bundle and the Double-bundle groups, consisting of 12 subjects in each group. Most of the subjects were male in both groups, including 9 (75%) subjects in the All-inside Single-bundle group, and 11 (91.67%) subjects in the Double-bundle group. The mean age of the subjects were 25.75±7.57 years old in the Allinside Single-bundle group, and 24.5±6.87 years old in the Double-bundle group. In terms of the side of the knee that suffered the most injuries in both groups were the right knees. The result of the patient-reported outcomes using IKDC and Tegner-Lysholm scores showed no statistically significant differences in both groups at 6- and 12-month follow-ups (p=0.864; p=0.293 and p=0.589; p=0.233, respectively). The results of clinical assessments at 6- and 12-month follow-ups also showed no statistically significant differences in both groups. Conclusion: Our study showed no significant differences in the patient-reported and the clinical outcomes between the All-inside Single-bundle and the Double-bundle ACL reconstruction techniques at 6- and 12-month follow-ups.

Effect of a care bundle on prevention of nasal pressure injury in patients with nasotracheal intubation undergoing oral and maxillofacial surgery under general anesthesia / 中国实用护理杂志

Objective:To investigate the effect of care bundles on prevention of nasal medical device-related pressure injury in patients with nasotracheal intubation undergoing oral and maxillofacial surgery under general anesthesia.Methods:This was a retrospective study. Using the convenient sampling method, patients with a surgical time more than 4 hours and a surgical grade of 3 or 4, with nasotracheal intubation undergoing oral and maxillofacial surgery under general anesthesia from Hospital of Stomatology, Sun Yat-sen University were selected. A total of 96 patients from July to December 2019 were in the control group, and 99 patients from July to December 2020 were selected as the observation group. The control group was treated with routine nursing measures, the observation group was subjected to a nursing care bundle. The incidence of nasal pressure injury was observed after the operation, 24, 48, 72 hours after the nasotracheal intubation was removed, and patients′ satisfaction score was compared.Results:The incidence of nasal pressure injury in the control group was 6.25% (6/96). None of the patients in the observation group had any pressure injury, which was significantly lower than the control group (Fisher exact probability method, P=0.013). The satisfaction scores in the observation group was significantly higher than that in the control group (26.88 ± 1.94 vs 24.71 ± 3.33), the difference was statistically significant ( t=-5.54, P<0.01). Conclusions:The care bundle can effectively prevent the occurrence of nasal pressure injury in patients undergoing oral and maxillofacial surgery with nasotracheal intubation and improve patient satisfaction.

Efficacy and mechanism of scalp acupuncture for spastic cerebral palsy / 中国针灸

OBJECTIVE@#To observe the clinical efficacy of scalp acupuncture for spastic cerebral palsy (CP), and to explore its possible mechanism based on brain white matter fiber bundles, nerve growth related proteins and inflammatory cytokines.@*METHODS@#A total of 90 children with spastic CP were randomly divided into a scalp acupuncture group and a sham scalp acupuncture group, 45 cases in each group. The children in the two groups were treated with conventional comprehensive rehabilitation treatment. The children in the scalp acupuncture group were treated with scalp acupuncture at the parietal temporal anterior oblique line, parietal temporal posterior oblique line on the affected side, and parietal midline. The children in the sham scalp acupuncture group were treated with scalp acupuncture at 1 cun next to the above point lines. The needles were kept for 30 min, once a day, 5 days a week, for 12 weeks. Before and after treatment, the diffusion tensor imaging (DTI) indexes of magnetic resonance (FA values of corticospinal tract [CST], anterior limb of internal capsule [ICAL], posterior limb of internal capsule [ICPL], genu of internal capsule [ICGL], genu of corpus callosum [GCC], body of corpus callosum [BCC] and splenium of corpus callosum [SCC]), serum levels of nerve growth related proteins (neuron-specific enolase [NSE], glial fibrillary acidic protein [GFAP], myelin basic protein [MBP], ubiquitin carboxy terminal hydrolase-L1 [UCH-L1]) and inflammatory cytokines (interleukin 33 [IL-33], tumor necrosis factor α [TNF-α]), cerebral hemodynamic indexes (mean blood flow velocity [Vm], systolic peak flow velocity [Vs] and resistance index [RI], pulsatility index [PI] of cerebral artery), surface electromyography (SEMG) signal indexes (root mean square [RMS] values of rectus femoris, hamstring muscles, gastrocnemius muscles, tibialis anterior muscles), gross motor function measure-88 (GMFM-88) score, modified Ashworth scale (MAS) score, ability of daily living (ADL) score were observed in the two groups. The clinical effect of the two groups was compared.@*RESULTS@#After treatment, the FA value of each fiber bundle, Vm, Vs, GMFM-88 scores and ADL scores in the two groups were higher than those before treatment (P<0.05), and the above indexes in the scalp acupuncture group were higher than those in the sham scalp acupuncture group (P<0.05). After treatment, the serum levels of NSE, GFAP, MBP, UCH-L1, IL-33, TNF-α as well as RI, PI, MAS scores and RMS values of each muscle were lower than those before treatment (P<0.05), and the above indexes in the scalp acupuncture group were lower than those in the sham scalp acupuncture group (P<0.05). The total effective rate was 95.6% (43/45) in the scalp acupuncture group, which was higher than 82.2% (37/45) in the sham scalp acupuncture group (P<0.05).@*CONCLUSION@#Scalp acupuncture could effectively treat spastic CP, improve the cerebral hemodynamics and gross motor function, reduce muscle tension and spasticity, and improve the ability of daily life. The mechanism may be related to repairing the white matter fiber bundles and regulating the levels of nerve growth related proteins and inflammatory cytokines.

Clinical application of neurovascular staghorn flap for repairing of defects in fingertips / 中国修复重建外科杂志

OBJECTIVE@#To evaluate the effectiveness of neurovascular staghorn flap for repairing defects in fingertips.@*METHODS@#Between August 2019 and October 2021, a total of 15 fingertips defects were repaired with neurovascular staghorn flap. There were 8 males and 7 females with an average age of 44 years (range, 28-65 years). The causes of injury included 8 cases of machine crush injury, 4 cases of heavy object crush injury, and 3 cases of cutting injury. There were 1 case of thumb, 5 cases of index finger, 6 cases of middle finger, 2 cases of ring finger, and 1 case of little finger. There were 12 cases in emergency, and 3 cases with finger tip necrosis after trauma suture. Bone and tendon exposed in all cases. The range of fingertip defect was 1.2 cm×0.8 cm to 1.8 cm×1.5 cm, and the range of skin flap was 2.0 cm×1.5 cm to 2.5 cm×2.0 cm. The donor site was sutured directly.@*RESULTS@#All flaps survived without infection or necrosis, and the incisions healed by first intention. All patients were followed up 6-12 months, with an average of 10 months. At last follow-up, the appearance of the flap was satisfactory, the wear resistance was good, the color was similar to the skin of the finger pulp, and there was no swelling; the two-point discrimination of the flap was 3-5 mm. One patient had linear scar contracture on the palmar side with slight limitation of flexion and extension, which had little effect on the function; the other patients had no obvious scar contracture, good flexion and extension of the fingers, and no dysfunction. The finger function was evaluated according to the total range of motion (TAM) system of the Hand Surgery Society of Chinese Medical Association, and excellent results were obtained in 13 cases and good results in 2 cases.@*CONCLUSION@#The neurovascular staghorn flap is a simple and reliable method to repair fingertip defect. The flap has a good fit with the wound without wasting skin. The appearance and function of the finger are satisfactory after operation.

Electrophysiological study in chagasics with syncope and conduction disorder

SUMMARY BACKGROUND: Investigation of syncope involves the use of electrophysiological study, particularly in patients with cardiac conduction disorder. There is conflicting evidence about the role of electrophysiological study in patients with Chagas disease. OBJECTIVE: The objective of this study was to evaluate the electrophysiological study findings in patients with Chagas disease and bundle branch block and/or divisional block presenting with syncope. METHODS: This is a retrospective study of patients with Chagas disease and cardiac conduction disorder who underwent electrophysiological study from 2017 to 2021 for the investigation of syncope in a tertiary hospital in São Paulo, Brazil. Those with non-interpretable ECG, known coronary artery disease, and/or other cardiomyopathies were excluded. HV interval and electrophysiological study-induced malignant ventricular arrhythmias data were analyzed. RESULTS: A total of 45 patients (60.2±11.29 years, 57.8% males) were included. The mean HV interval was 58.37 ms±10.68; 22.2% of the studied population presented an HV interval of ≥70 ms; and malignant ventricular arrhythmias were induced in 57.8% patients. The use of beta-blockers and amiodarone (p=0.002 and 0.036, respectively), NYHA functional class≥II (p=0.013), wide QRS (p=0.047), increased HV interval (p=0.02), Rassi score >6.5 (p=0.003), and reduced left ventricular ejection fraction (p=0.031) were associated with increased risk of inducible malignant ventricular arrhythmias. CONCLUSION: More than half of the patients with Chagas disease, syncope, and cardiac conduction disorder have inducible malignant ventricular arrhythmias. Prolonged HV interval was observed in only 20% of population. Wide QRS, prolonged HV, reduced ejection fraction, and higher Rassi score were associated with increased risk of malignant ventricular arrhythmias.

Improvement project to reduce surgical site infections: a retrospective cohort study / Projeto de melhoria para redução de infecções de sítio cirúrgico: um estudo de coorte retrospectivo

ABSTRACT Introduction: Surgical site infections are one of the main problems related to health care. In Brazil, they are responsible for 14 to 16% of infections related to health care. This study sought to analyze the effect of implementing a package of measures to reduce surgical site infections (SSI) in heart surgeries, kidney transplants and herniorrhaphies and to evaluate adherence to the safe surgery checklist in a university hospital. Methods: this is a retrospective cohort study with data collection in a time series for the period from 2018 to 2020. Results: we analyzed 222 medical records referring to the surgeries under study performed in the year 2020, in which data were collected from the patients and the care package prevention measures. SSI data and adherence to the safe surgery checklist were analyzed in the years 2018, 2019 and 2020, totaling 268, 300 and 222 procedures analyzed, respectively. Conclusion: the study showed a significant reduction in the SSI rate with greater adherence to the protocol, which was not maintained and was influenced by the COVID-19 pandemic. Thus, the sustainability of this action represents a challenge to be overcome, in order to establish a safer environment for the patient and a better quality of service.

RESUMO Introdução: as infecções do sítio cirúrgico são um dos principais agravos relacionados à assistência à saúde. No Brasil, são responsáveis por 14 a 16% das infecções relacionadas à assistência à saúde. Esse estudo buscou analisar o efeito da implementação de um pacote de medidas para redução de infecções de sítio cirúrgico (ISC) em cirurgias cardíacas, transplantes renais e herniorrafias e avaliar adesão ao checklist de cirurgia segura em um hospital universitário. Métodos: trata-se de um estudo de coorte retrospectivo com coleta de dados em série temporal relativo ao período de 2018 a 2020. Resultados: foram analisados 222 prontuários referentes às cirurgias em estudo realizadas no ano de 2020, nos quais foram coletados dados dos pacientes e do pacote de medidas de prevenção. Dados de ISC e adesão ao checklist de cirurgia segura foram analisados nos anos de 2018, 2019 e 2020, totalizando 268, 300 e 222 procedimentos analisados, respectivamente. Conclusão: o estudo evidenciou uma redução significativa da taxa de ISC com a maior adesão ao protocolo, a qual não foi mantida e sofreu influência da pandemia de COVID-19. Assim, a sustentabilidade dessa ação representa um desafio a ser contornado, a fim de estabelecer um ambiente mais seguro para o paciente e uma melhor qualidade do serviço.

Tecnologia para prevenção de pneumonia associada à ventilação mecânica em unidade de terapia intensiva adulto / Technology for the prevention of ventilator-associated pneumonia in an adult intensive care unit

Resumo: A Pneumonia Associada à Ventilação (PAV) é uma das infecções relacionadas à assistência à saúde mais incidentes nas Unidades de Terapia Intensiva (UTI), e está relacionada com aumento do tempo de internação, os custos hospitalares e a mortalidade. Os bundles, ou conjunto de medidas preventivas, são tecnologias em saúde, cuja implementação em UTI está relacionada à diminuição da Densidade de Incidência (DI) de PAV, tempo de ventilação e internação hospitalar. Objetivo: implementar um bundle de prevenção à PAV, por meio de intervenção educativa, com uso de tecnologias educacionais, junto à equipe multiprofissional de uma UTI adulto de um hospital público do Paraná, localizado no litoral do estado. Método: estudo quase-experimental do tipo antes e depois, de intervenção educativa, realizado de janeiro a maio de 2022, composto por três fases: pré-intervenção, intervenção e pós-intervenção. A intervenção ocorreu no mês de março de 2022, com 70 profissionais da UTI, dividida em três encontros, e utilizou como tecnologias educacionais: aula expositiva-dialogada, vídeos, gamificação de estudos de caso, banner, infográfico e demonstração da prática em manequim. Para categorização dos profissionais, utilizou-se de questionário entregue no momento da intervenção educativa. Incluíram-se os profissionais da equipe multiprofissional da UTI, enfermeiros, técnicos de enfermagem, médicos e fisioterapeutas. Inseriram-se os pacientes adultos, em VM, internados na UTI e foram analisados os respectivos prontuários. Os dados foram coletados por meio de check-list de adesão ao bundle de PAV, por paciente, e preenchido pelas pesquisadoras, através de observação direta não participante dos procedimentos realizados aos pacientes incluídos e análise de prontuário destes. Os dados foram tabulados e lançados em planilha do programa Excel®, com análise estatística descritiva, com frequências absolutas, relativas e média. Resultados: a implementação do bundle por meio de intervenção educativa, com uso de tecnologias educacionais, possibilitou debate, envolvimento e interação entre os profissionais participantes, com troca de experiências, contribuições e discussão da prática assistencial. Realizaram-se 488 observações, 61 pacientes foram incluídos e 26 desenvolveram PAV. Registraram-se 33 óbitos (sendo 12 na fase pré e 21 na fase pós), destes, 19 tinham PAV. A DI de PAV da fase pré-intervenção foi de 25,58 PAV/VM-dia e da fase pós-intervenção foi de 31,74 PAV/ VM-dia. Houve aumento da taxa de adesão geral ao bundle na fase pós-intervenção, que foi de 67,64%, em comparação com a fase pré (33%). O item do bundle com maior adesão foi a manutenção da pressão do cuff (93,03%), seguido da higiene oral (82,99%), cabeceira elevada (78,07%), manutenção do sistema de ventilação mecânica conforme as recomendações vigentes no país (69,05%), redução da sedação (67,0%) e verificação da possibilidade de extubação (38,72%). Conclusão: a implementação do bundle, por meio de intervenção educativa, com uso de tecnologias educacionais, somada à vigilância à beira leito da realização das medidas de prevenção à PAV, demonstrou aumento da adesão ao bundle após a intervenção, porém não houve redução da DI de PAV. Podem existir explicações alternativas, como ausência de protocolos de sedação e teste de respiração espontânea, convergências carentes de intervenção.

Abstract: Ventilator-Associated Pneumonia (VAP) is one of the most frequent healthcare-associated infections in Intensive Care Units (ICU), and is related to increased length of stay, hospital costs and mortality. Bundles, or a set of preventive measures, are health technologies whose implementation in the ICU is related to the decrease in VAP Incidence Density (DI), ventilation time and hospital stay. Objective: to implement a VAP prevention bundle, through educational intervention, with the use of educational technologies, together with the multidisciplinary team of an adult ICU of a public hospital in Paraná, located on the coast of the state. Method: a quasi-experimental before-and-after study of educational intervention, carried out from January to May 2022, consisting of three phases: pre-intervention, intervention and post-intervention. The intervention took place in March 2022, with 70 ICU professionals, divided into three meetings, and used as educational technologies: expository-dialogued class, videos, gamification of case studies, banner, infographic and demonstration of the practice on a mannequin. For categorization of professionals, a questionnaire delivered at the time of the educational intervention was used. Professionals from the ICU multidisciplinary team, nurses, nursing technicians, physicians and physiotherapists were included. Adult patients in VM, admitted to the ICU were included and their medical records were analyzed. Data were collected through a check-list of adherence to the VAP bundle, per patient, and filled in by the researchers, through direct observation of the non-participant of the procedures performed on the included patients and analysis of their medical records. The data were tabulated and entered in an Excel® spreadsheet, with descriptive statistical analysis, with absolute, relative and average frequencies. Results: the implementation of the bundle through educational intervention, using educational technologies, enabled debate, involvement and interaction among the participating professionals, with exchange of experiences, contributions and discussion of care practice. There were 488 observations, 61 patients were included and 26 developed VAP. There were 33 deaths (12 in the prephase and 21 in the post-phase), of which 19 had VAP. The VAP DI in the pre-intervention phase was 25.58 VAP/MV-day and in the post-intervention phase it was 31.74 VAP/MV-day. There was an increase in the overall adherence rate to the bundle in the post-intervention phase, which was 67.64%, compared to the pre-phase (33%). The bundle item with the highest adherence was maintenance of cuff pressure (93.03%), followed by oral hygiene (82.99%), elevated headboard (78.07%), maintenance of the mechanical ventilation system as recommended in the country (69.05%), reduction of sedation (67.0%) and verification of the possibility of extubation (38.72%). Conclusion: the implementation of the bundle, through educational intervention, with the use of educational technologies, added to the surveillance at the bedside of the implementation of VAP prevention measures, showed an increase in adherence to the bundle after the intervention, but there was no reduction in DI of PAV. There may be alternative explanations, such as the absence of sedation protocols and spontaneous breathing tests, convergences lacking intervention.

Factores asociados al bloqueo de rama derecha en adultos mayores / Factors associated with right bundle branch block in older adults

RESUMEN Introducción: Existe poca literatura sobre la asociación entre el bloqueo de rama derecha y factores de riesgo como la hipertensión y la diabetes en pacientes de Latinoamérica y Perú. Objetivo: Determinar los factores asociados al bloqueo de rama derecha en adultos mayores. Métodos: Estudio transversal que incluyó 376 pacientes adultos mayores atendidos en el Hospital Almanzor Aguinaga Asenjo, Lambayeque-Perú. La variable dependiente fue la presencia de bloqueo de rama derecha y las variables independientes fueron edad, sexo, antecedente de hipertensión arterial y diabetes. Se estimaron razones de prevalencia e intervalos de confianza al 95 %. Resultados: De 376 pacientes, la mayoría eran varones (55,9 %), la edad media fue de 75,6 años, el 11,4 % tuvo antecedente de hipertensión y el 9 % era diabético. El 41 % tuvo diagnóstico de bloqueo de rama derecha. En la regresión múltiple; el sexo femenino (RP=1,53, IC 95 %: 1,21 - 1,95), antecedente de hipertensión (RP=1,55; IC 95 %: 1,21 - 2,00) y diabetes mellitus (RP=1,49, IC 95 %: 1,12 - 2,00) se asociaron de forma positiva a presentar bloqueo de rama derecha. El modelo anidado seleccionó las variables: sexo femenino (RP=1,54, IC 95 %: 1,21 - 1,96) y antecedente de hipertensión arterial (RP=1,61, IC 95 %: 1,25 - 2,08). Conclusión: El sexo femenino, antecedente de hipertensión arterial y de diabetes mellitus se asocian positivamente a presentar bloqueo de rama derecha.

ABSTRACT Introduction: There is little literature on the association between right bundle branch block and risk factors such as hypertension and diabetes in patients in Latin America and Peru. Objective: To determine the factors associated with right bundle branch block in older adults. Methods: Analytical cross-sectional study completed by 376 elderly patients treated at Almanzor Aguinaga Asenjo Hospital, Lambayeque-Peru. The dependent variable was the presence of right bundle branch block, and the independent variables were age, sex, history of hypertension, and diabetes. Prevalence ratios and 95 % confidence intervals were estimated. Results: Of 376 patients, the majority were male (55,9 %), the mean age was 75,6 years, 11,4 % had a history of hypertension and 9 % were diabetic; 41 % had a diagnosis of right bundle branch block. In simple regression, the frequency of right bundle branch block was 56 % (PR= 1,56; 95 % CI: 1,22-1,99), 65 % (PR=1,65; 95 % CI: 1,26 - 2,15) and 59 % (PR= 1,59; CI 95 %: 1,18 - 2,14) higher in women, hypertensive and diabetics; respectively. In the multiple regression; female sex (PR= 1,53; 95 % CI: 1,21 - 1,95), history of hypertension (PR= 1,55; 95 % CI: 1,21 - 2,00) and diabetes mellitus (PR= 1,49; 95 % CI: 1,12 - 2,00) were positively associated with right bundle branch block. The nested model selected the variables: female sex (PR= 1,54; 95 % CI: 1,21 - 1,96) and history of arterial hypertension (PR= 1,61; 95 % CI: 1,25 - 2,08). Conclusion: Female sex, history of arterial hypertension and diabetes mellitus were positively associated with presenting right bundle branch block in older adults.

Ablación exitosa con radiofrecuencia a través de la cúspide coronariana derecha de un complejo ventricular prematuro parahisiano / Successful radiofrequency ablation through the right coronary cups of a parahisian premature ventricular complexes

Resumen Los complejos ventriculares prematuros (CVP) son hallazgos frecuentes en individuos con o sin enfermedad estructural cardiaca. Los CVP cuyo origen se localiza en la región parahisiana son poco frecuentes y su manejo a través de ablación con catéter de radiofrecuencia es un reto, pues su localización favorece un alto riesgo de desarrollo de bloqueo aurículo-ventricular. Se describen dos casos de pacientes con CVP parahisianos llevados a ablación con catéter de radiofrecuencia.

Abstract Premature ventricular complexes (PVC) are common findings in patients with or without structural heart disease. Parahisian PVC are uncommon and their management through radiofrequency catheter ablation remains a challenge, since their location favors a high risk for developing atrioventricular block. Two cases of patients with parahisian PVC undergoing radiofrequency catheter ablation are described.

A narrative review on invasive brain stimulation for treatment-resistant depression

While most patients with depression respond to pharmacotherapy and psychotherapy, about one-third will present treatment resistance to these interventions. For patients with treatment-resistant depression (TRD), invasive neurostimulation therapies such as vagus nerve stimulation, deep brain stimulation, and epidural cortical stimulation may be considered. We performed a narrative review of the published literature to identify papers discussing clinical studies with invasive neurostimulation therapies for TRD. After a database search and title and abstract screening, relevant English-language articles were analyzed. Vagus nerve stimulation, approved by the U.S. Food and Drug Administration as a TRD treatment, may take several months to show therapeutic benefits, and the average response rate varies from 15.2-83%. Deep brain stimulation studies have shown encouraging results, including rapid response rates (> 30%), despite conflicting findings from randomized controlled trials. Several brain regions, such as the subcallosal-cingulate gyrus, nucleus accumbens, ventral capsule/ventral striatum, anterior limb of the internal capsule, medial-forebrain bundle, lateral habenula, inferior-thalamic peduncle, and the bed-nucleus of the stria terminalis have been identified as key targets for TRD management. Epidural cortical stimulation, an invasive intervention with few reported cases, showed positive results (40-60% response), although more extensive trials are needed to confirm its potential in patients with TRD.

Alcoholización de la vena de Marshall: una alternativa rápida, útil y efectiva en el tratamiento del aleteo auricular perimitral. Una descripción de la técnica / Marshall vein alcoholization, fast, useful and effective alternative in the treatment of perimitral atrial flutter. A description of the technique

Resumen Se presenta el caso de un paciente de 68 años con aleteo auricular perimitral recurrente a terapia antiarrítmica en el seguimiento de ablación de venas pulmonares por fibrilación auricular. En este caso no se logra el control de la arritmia a pesar de una aproximación usual; se aplica radiofrecuencia endoepicárdica del istmo mitral. En vista de lo anterior, se decide realizar alcoholización de la vena de Marshall; una técnica rápida, útil y efectiva en el control de esta arritmia. A continuación, se describe el paso a paso con el objetivo de familiarizar a los cardiólogos intervencionistas con esta técnica. A la fecha, el paciente se encuentra en ritmo sinusal y sin recurrencia de la arritmia en el seguimiento.

Abstract The case of a 68-year-old patient with recurrent perimitral atrial flutter to anti-arrhythmic therapy in the follow-up of pulmonary vein ablation due to atrial fibrillation is presented. In our case, arrhythmia control is not achieved despite a usual approach; Endo-epicardial radiofrequency application at the mitral isthmus level. Given the above, it was decided to alcoholize Marshall’s vein; a fast, useful and effective technique in the control of this arrhythmia. Here is a step-by-step guide to familiarize interventional cardiologists with this technique. The patient is in sinus rhythm and without recurrence of the arrhythmia at follow-up.

Impact of completion rates of 3-hour and 6-hour bundle on the prognosis of septic shock patients / 中华危重病急救医学

Objective:To explore the impact of completion rates of 3-hour and 6-hour sepsis bundle therapy on prognosis of patients with septic shock in Prefecture-level grade A hospitals, and analyze the risk factors for prognosis.Methods:A retrospective analysis was conducted to patients with septic shock in the intensive care unit (ICU) of Liaocheng People's Hospital, Shandong Province from January 1, 2020 to December 31, 2021. The data of gender, age, acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ), sequential organ failure assessment (SOFA), sites of infection, pathogenic microorganisms, completion rates of 3-hour and 6-hour sepsis bundle therapy, 28-day prognosis were collected. Logistic regression analysis was used to identify risk factors for patients' mortality at 28-day.Results:① Among 159 patients with septic shock, 93 survived and 66 died with 28-day. There were no significant differences in gender and age between the survival group and death group. Compared with the survival group, APACHE Ⅱ score and SOFA score were significantly higher in the death group [APACHE Ⅱ score: 26.85±5.04 vs. 20.67±4.29, SOFA score: 12.86±3.02 vs. 9.37±2.51, both P < 0.05]. ② Sites of infection in the 159 patients: 47 cases were abdominal infection (29.6%), 36 case were bloodstream infection (22.6%), 31 cases were pulmonary infection (19.5%), 16 cases were soft tissue infection (10.1%), 13 cases were urinary tract infection (8.2%), 12 cases were biliary tract infection (7.5%), and 4 cases were other sites infection (2.5%). Pathogens were found in 128 cases and the positive rate was 80.5%, including 90 cases of Gram-negative (G -) bacilli (56.6%), 27 cases of Gram-positive (G +) cocci (17.0%) and 11 cases of fungi (6.9%). The top three pathogenic bacteria were Escherichia coli (49 cases, 30.8%), Klebsiella pneumoniae (21 cases, 13.2%) and Staphylococcus aureus (15 cases, 9.4%). The differences were not statistically significant. ③ Among the 159 patients, 101 cases completed 3-hour sepsis bundle therapy (63.5%), including 67 cases (72.0%) in survival group and 34 cases (51.5%) in death group; 106 cases completed 6-hour sepsis bundle therapy (66.7%), including 70 cases (75.3%) in survival group and 36 cases (54.5%) in death group. The differences between the two groups were statistically significant (all P < 0.05). ④ The factors (APACHE Ⅱ score, SOFA score and completion rate of 3-hour and 6-hour sepsis bundle therapy) affecting the prognosis in the univariate analysis were included in the binary Logistic regression analysis, and the results showed that the APACHE Ⅱ score, SOFA score, completion rate of 3-hour sepsis bundle therapy were independent risk factors affecting mortality within 28-day [odds ratio ( OR) was 1.216, 1.303, 0.402, all P < 0.05]. Conclusions:The higher APACHE Ⅱ score and SOFA score in septic shock, the worse the prognosis. Improving the completion rates of 3-hour and 6-hour bundle therapy especially the completion rate of 3-hour bundle therapy can reduce the mortality of patients and improve the prognosis.

Analyze the application rules and effects of "Four Elements, One Peptide, and Two Transplantations" based on bundle treatment in coronavirus disease 2019 / 中华危重病急救医学

Objective:To explore the application rules and effects of "Four Elements, One Peptide, and Two Transplantations" in the bundle treatment of the patients with coronavirus disease 2019 (COVID-19), so as to provide a scientific evidence for effective treatment and prevention of severe type.Methods:A retrospective comparative study method was used to analyze the clinical data of COVID-19 patients admitted to Wuxi Fifth People's Hospital from January 2020 to March 2022, including demographic information, underlying diseases, clinical classification, length of hospital stay, treatment cost, clinical symptoms, laboratory tests and other key indicators, and evaluate the application rules and effect of "Four Elements, One Peptide, and Two Transplantations" in the bundle treatment of the patients with COVID-19.Results:The L-type new coronavirus strain was predominant in 2020, the Delta variant in 2021, and the Omicron variant in 2022. The proportion of mild cases was highest in 2022, with the highest proportion of > 65 years old patients developing severe and critical. Among the 150 patients, the proportion of interferon use (100.0%) was the highest in the bundle treatment regimen of "Four Elements, One Peptide, and Two Transplantation". The combined use of vitamin C, interferon and thymopeptide was highest in 2022. More than 75.0% of the age > 65 years old group had underlying diseases, which was also the age group with the highest proportion of "Four Elements, One Peptide, and Two transplantations". Compared with mild cases, the age, length of hospital stay, and hospitalization cost of patients with COVID-19 increased significantly with severity. Mild, ordinary, severe, and critically ill patients all had low lymphocyte counts, with 40.0% of severe patients having the lowest lymphocyte counts within 3 days of admission. The lymphocyte count of critically ill patients was reduced or continuously reduced after admission, and the use of the "Four Elements, One Peptide, and Two transplantations" method to regulate immunity can effectively save the lives of critically ill patients. Of all cases of COVID-19 infection, 51.3% were asymptomatic, followed by respiratory symptoms (48.7%) and lung lesions (38.0%). Patients with renal dysfunction received this bundle therapy was highest, followed abnormal coagulation and abnormal liver function. This bundle therapy promoted a significant increase in CD4 + T lymphocytes and B lymphocytes in various cases. After treatment, as the virus turns negative, the proportion of M1 type macrophages increased, and the proportion of regulatory T cell (Treg cells) that suppress immunity and the infection related C-C chemokine receptor type (CCR10 +) Treg cells decreased. Mild adult cases showed a great change and declined rapidly. Conclusions:Advanced age with underlying diseases is a risk factor for severe disease of COVID-19, the "Four Elements, One Peptide, and Two transplantations" bundle fine treatment of COVID-19 can improve the proportion of lymphocyte composition and organ function, which can control the occurrence and development of severe diseases. In addition to the proportion of CD4 + T cells, the changes of the M1 macrophage, total Treg cell, and CCR10 + Treg cell proportions can be used to determine disease changes of adult patients.

Effect study of guideline-based care bundles on the prevention of enteral nutrition-related diarrhea in ICU patients / 中国实用护理杂志

Objective:To construct the evidence-based care bundles for enteral nutrition-related diarrhea in ICU patients and evaluate its effectiveness.Methods:Evidence-based care bundles for enteral nutrition-related diarrhea in ICU patients were constructed according to the best evidence from 5 guidelines. 12 best evidences were summarized, and 12 cluster schemes for diarrhea management were constructed. 175 patients admitted to ICU of Shandong Provincial Hospital Affiliated to Shandong First Medical University from June to December 2020 were selected as the pre implementation group which was given enteral nutrition nursing according to routine nursing measures, and 186 patients admitted to ICU from March to October 2021 were selected as the post implementation group which received nrusing care with evidence-based cluster schemes. The rate of diarrhea in ICU patients undergoing enteral nutrition support before and after using best evidence was compared, and awareness of best evidence among nurses before and after training, and implementation of various measures by nurses after the plan were also compared.Results:After the care bundles were applied, the incidence of diarrhea decreased from 26.29% (46/175) to 11.83% (22/186) with statistically significant difference ( χ2=12.33, P<0.05). The diarrhea knowledge score was improved from 52-100 (75.79 ± 10.18) points to 72-100 (90.00 ± 6.71) points and had a significant difference ( t=-8.88, P<0.05). After the care bundles were applied, the rate of ICU nurses′ diarrhea identification and evaluation, analysis of influencing factors of enteral nutrition associated diarrhea, nasal feeding, selection of enteral nutrition formula and drug were 94.83% (55/58), 91.38% (53/58), 100.00 (58/58), 93.10% (54/58), 94.83% (55/58),significantly improved than 68.97% (40/58), 63.79% (37/58), 81.03% (47/58), 62.07% (36/58), 70.69% (41/58) before applied ( χ2 values were 8.66-14.33, all P<0.01). The implementation rate after the plan was more than 95.00%. Conclusions:The application of the evidence-based care bundles can effectively reduce the incidence of enteral nutrition diarrhea in ICU patients, improve nursing practice and the quality of care.