Hallazgos imagenológicos torácicos en seguimiento de pacientes con síndrome PostCovid-19 / Thoracic imagenological findings in follow-up of patients with Post-Covid-19 syndrome

Objetivo: Describir los hallazgos imagenológicos en radiografías de tórax y ecografías pulmonares de pacientes con síndrome post-COVID-19. Métodos: estudio descriptivo, prospectivo y transversal que incluyó pacientes con síndrome post-COVID-19, sometidos a radiografías de tórax y ecografías pulmonares en el Servicio de Neumonología Clínica del Hospital Dr. José Ignacio Baldo, entre enero y octubre de 2022, con la finalidad de establecer su evolución imagenológica pulmonar. Se utilizó estadística descriptiva, chi-cuadrado de Pearson y prueba kappa de concordancia, considerando significativo un valor de p < 0,05. Resultados: La muestra consistió en 58 pacientes con una edad media de 55 ± 13 años, predominando el sexo femenino (58,6%). El 60,3% mostró alteraciones en la radiografía de tórax; un 74,3% con patrón intersticial bilateral y un 25,7% con patrón intersticial unilateral. La ecografía reveló patrón intersticial en el 43,1% de los casos y se observaron dos microconsolidaciones subpleurales. Conclusiones: Las radiografías de tórax y las ecografías pulmonares son herramientas imagenológicas eficaces, accesibles y económicas para detectar alteraciones en pacientes con síndrome post-COVID-19. (AU)

Objective: To describe imaging findings in chest radiographs and lung ultrasounds of patients with post-COVID-19 syndrome. Methods: A descriptive, prospective, and cross-sectional study was carried out that included patients with post-COVID-19 syndrome, who underwent chest radiographs and lung ultrasounds at the Clinical Pneumonology Service of Dr. José Ignacio Baldo Hospital, between January and October 2022. Descriptive statistics, Pearson's chi-square, and kappa concordance test were used, considering a p-value < 0.05 significant. Results: The sample consisted of 58 patients with an average age of 55 ± 13 years, with a predominance of females (58.6%). 60.3% showed alterations in the chest radiograph; 74.3% with a bilateral interstitial pattern and 25.7% with a unilateral interstitial pattern. The ultrasound revealed an interstitial pattern in 43.1% of the cases and two subpleural microconsolidations were observed. Conclusions: Chest radiographs and lung ultrasounds are effective, accessible, and economical imaging tools to detect alterations in patients with post-COVID-19 syndrome. (AU)

Nutritional management of muscle mass loss in patients with Post-COVID-19 Syndrome: a scoping review / Manejo nutricional na perda de massa muscular em pacientes com a Síndrome Pós-COVID-19: uma revisão de escopo

Post-Covid-19 Syndrome (PCS) is a condition that causes persistent symptoms and impacts nutritional status such as loss of muscle mass. The objective of this study was to review and map scientific evidence on nutritional management in the loss of muscle mass in patients with PCS. The scoping review protocol was prepared following the PRISMA-ScR guidelines. Review articles not written in English or those that included only hospitalized patients and pertained to conditions other than PCS were excluded. Data extraction followed the methodology outlined by the Cochrane Review Group. Of the 81 articles initially identified, only five met the inclusion criteria. The selected studies emphasized the importance of recovering muscle mass, higher protein and caloric intake, and physical strength exercises. Consequently, nutritional interventions aimed at mitigating muscle mass loss should prioritize strategies that increase caloric and protein consumption.

A Síndrome Pós-covid-19 (SPC) é uma condição que acarreta sintomas persistentes e impactam o estado nutricional, como a perda de massa. O objetivo deste estudo foi realizar revisão para mapear evidências científicas acerca do manejo nutricional na perda de massa muscular em pacientes com SPC. O protocolo da revisão de escopo foi elaborado de acordo com o PRISMA-ScR. Foram excluídos artigos de revisão que não estivessem em inglês ou português, que incluíssem apenas pacientes hospitalizados e com outras condições que não a SPC. Os dados foram extraídos com base no Cochrane Review Group. 81 artigos foram identificados e a amostra final incluiu cinco estudos. Para a recuperação da massa muscular, maior ingestão proteica, calórica e exercícios físicos de força foram descritos nos estudos. A intervenção nutricional para recuperar a perda de massa muscular deve considerar estratégias que visam o aumento do consumo calórico e proteico.

Myalgic encephalomyelitis/chronic fatigue syndrome as a complication of COVID-19 post-acute syndrome in adults. Bibliographic Review / Encefalomielitis miálgica/síndrome de fatiga crónica como complicación del síndrome post-agudo de COVID-19 en adultos. Revisión bibliográfica.

According to the latest report from the World Health Organization and the Pan American Health Organization, COVID-19 currently presents a morbidity of 29.6 % and constituted 43.6 % of deaths worldwide. Although mortality rates have decreased considerably, many cases of patients with post-COVID sequelae have been reported around the world; in fact, more than 87 % of patients continue to experience at least one symptom two months after the onset of infection. The objective of the present review is to describe myalgic encephalomyelitis/chronic fatigue syndrome as a Complication of the post-acute syndrome of COVID-19 in Adults. Cases of survivors of COVID-19 have been reported who report the presence of sequelae, persisting for several months after being discharged. Data from post-acute COVID-19 patient reports and early observational studies suggest a syndrome similar to myalgic encephalomyelitis/chronic fatigue syndrome, a chronic, multisystem disease that has been associated with other infections. Within the general population, the prevalence of chronic fatigue ranges between 10 and 40 %, while the ME/CFS association constitutes 0.17-0.89 % and is more common in females.

De acuerdo al último reporte de la Organización Mundial de la Salud y la Organización Panamericana de la Salud, actualmente la COVID 19 presenta una morbilidad del 29,6 %  constituyó el 43,6 % de las muertes en todo el mundo. Aunque las tasas de mortalidad disminuyeron considerablemente, múltiples casos de pacientes con secuelas post-COVID se han reportado alrededor del mundo, de hecho, más del 87 % de los pacientes continúan experimentando al menos un síntoma dos meses después del inicio de la infección. El objetivo de la presente revisión es describir la encefalomielitis miálgica/síndrome de fatiga crónica como una Complicación del síndrome post-agudo de COVID-19 en Adultos. Se han reportado casos de sobrevivientes de COVID-19 que refieren la presencia de secuelas, persistiendo varios meses después de haber recibido el alta. Los datos provenientes de los relatos de pacientes después del cuadro agudo de COVID-19 y los primeros estudios observacionales sugieren un síndrome similar a la encefalomielitis miálgica/síndrome de fatiga crónica, una enfermedad de evolución crónica que afecta a múltiples sistemas y se ha asociado con otras infecciones. Dentro de la población general, la prevalencia de la fatiga crónica oscila entre el 10 y 40 %, mientras que la asociación ME/CFS constituye del 0,17-0,89 % y es más común en el sexo femenino.

La niebla mental, una manifestación neurocognitiva del síndrome post-COVID-19 / Brain fog, a neurocognitive manifestation of the post-COVID-19 syndrome

Introducción: La COVID-19, infección causada por el SARS-CoV-2, ocasiona daños a diferentes órganos y sistemas, como el sistema nervioso central. Entre las alteraciones neurológicas se describe la niebla mental como manifestación neurocognitiva frecuente en el síndrome post-COVID-19, con un impacto negativo en la calidad de vida de los pacientes. Se revisaron 104 artículos publicados desde junio 2020 a octubre del 2022, en las bases de datos Pubmed, Medline, Lilacs y Cumed. Objetivo: Actualizar conocimientos sobre las manifestaciones neurocognitivas de niebla mental en el síndrome post-COVID-19. Desarrollo: Se describen alteraciones neurocognitivas de niebla mental, trastornos de atención, concentración y memoria, asociados a otros síntomas neurológicos, como cefalea, insomnio, anosmia, ageusia, ansiedad, depresión, y otros síntomas persistentes, que caracterizan al síndrome post-COVID-19. Se hace referencia a elementos de la etiopatogenia, resaltando la respuesta inmune sistémica exagerada, generada por la liberación de citoquinas, aspectos a tener presentes para la conducta diagnóstica y terapéutica de los pacientes post-COVID-19. Conclusiones: Los síntomas neurocognitivos de niebla mental, constituyen las alteraciones neurológicas frecuentes del síndrome post-COVID-19, son variados, con combinación de diferentes síntomas en cada enfermo, más frecuentes en mujeres y en pacientes que presentaron enfermedad grave(AU)

Introduction: COVID-19, infection caused by SARS-CoV-2, causes damage to different organs and systems, such as the central nervous system. Among the neurological alterations, brain fog is described as a frequent neurocognitive manifestation in post-COVID-19 syndrome, with a negative impact on patients' quality of life; 104 articles published were reviewed from June 2020 to October 2022, in Pubmed, Medline, Lilacs and Cumed databases. Objective: To update knowledge on the neurocognitive manifestations of brain fog in post-COVID-19 syndrome. Development: Neurocognitive alterations of mental fog, attention, concentration and memory disorders, associated with other neurological symptoms, such as headache, insomnia, anosmia, ageusia, anxiety, depression, and other persistent symptoms, which characterize post-COVID-19 syndrome, are described. Reference is made to elements of the etiopathogenesis, highlighting the exaggerated systemic immune response, generated by the release of cytokines, aspects to keep in mind for the diagnostic and therapeutic conduct of post-COVID-19 patients. Conclusions: The neurocognitive symptoms of brain fog are frequent neurological alterations of post-COVID-19 syndrome, they are varied, with a combination of different symptoms in each patient, more frequent in women and in patients who presented severe disease(AU)

Proceso formativo del estudiante de Medicina en la detección de secuelas discapacitantes pos-COVID-19 / Training process of the medical student in the detection of post-COVID-19 incapacitating sequelae i: en

Introducción: En el proceso de capacitación continua de los estudiantes de Medicina resulta necesario incorporar temas de actualidad; asimismo, es importante conocer los problemas para buscar soluciones con el apoyo de la ciencia. Objetivo: Diagnosticar el proceso formativo del estudiante de Medicina en cuanto a la detección de secuelas discapacitantes pos-COVID-19. Métodos: Se realizó un estudio observacional, descriptivo y transversal, con enfoque cualitativo, de 20 estudiantes del quinto año de la carrera de Medicina, pertenecientes a la Universidad de Ciencias Médicas de Camagüey, durante su estancia por la asignatura Salud Pública, desde julio hasta diciembre del 2022. Para tal propósito se diseñó y aplicó un instrumento evaluativo con dimensiones e indicadores. Resultados: Se halló que 50,0 % de dichos estudiantes se ubicó en el rango de edad de 21-26 años, mientras que 65,0 % correspondió al sexo femenino. La dimensión cognitiva fue evaluada de mal, pues 3 indicadores, de los 4 que la integraban, recibieron esa calificación; del mismo modo sucedió con la dimensión instrumental. En cambio, la dimensión actitudinal y sus 2 indicadores fueron calificados de bien. Conclusiones: Existieron insuficiencias en el proceso formativo del estudiante de Medicina, lo que obstaculiza su desempeño profesional. Sobre la base del diagnóstico realizado, se confirma como fortaleza el interés por la búsqueda de información relacionada con la detección de secuelas discapacitantes pos-COVID-19.

Introduction: In the continuous training process of medical students, it is necessary to incorporate current issues; likewise, it is important to know the problems to seek solutions with the science support. Objective: To diagnose the training process of medical students as for the detection of incapacitating sequelae post-COVID-19. Methods: An observational, descriptive and cross-sectional study, with qualitative approach, of 20 students from 5th year of Medicine career, belonging to the University of Medical Sciences in Camagüey was carried out during their stay for the Public Health subject, from July to December, 2022. For such a purpose it was designed and applied an evaluative instrument with dimensions and indicators. Results: It was found that 50.0% of these students were in the age range of 21-26 years, while 65.0% were female. The cognitive dimension was evaluated as bad because 3 indicators, of the 4 that made it up, received that qualification; the same happened with the instrumental dimension. On the other hand, the attitudinal dimension and its 2 indicators were qualified as good. Conclusions: Inadequacies existed in the training process of medical students, which block their professional performance. On the base of the diagnosis, the interest in searching for information related to the detection of post-COVID-19 incapacitating sequelae is confirmed as strength.

Post-COVID-19 syndrome: Descriptive analysis based on a survivors' cohort in Colombia.

Background: The prevalence of post-COVID-19 Syndrome (PCS) is estimated to be between 10% and 20%. The main reported symptoms are fatigue, memory alterations, dyspnea, sleep disorders, arthralgia, anxiety, taste alterations, coughing and depression. This study aims to determine the prevalence of post-COVID-19 symptoms in a group of Colombian patients who were recruited during their outpatient appointments. Methodology: This cross-sectional study was conducted between December 2021 to May 2022. It included patients from outpatient facilities located in five main cities in Colombia who were positive for SARS-CoV-2 infection detected by reverse transcription-polymerase chain reaction (RT-PCR) testing and reported PCS in the following 12 weeks after their COVID-19 diagnosis. Results: A total of 1047 individuals >18 years old met the inclusion criteria and were included in the study. The median age was 46 years old. 68.2% of the participants were female, 41.5% of the patients reported having a pre-existent condition (hypertension, anxiety disorder, diabetes, hyperthyroidism, obesity and asthma). Only 22% had received at least one dose of COVID-19 vaccine prior to the COVID-19 episode registered. The more prevalent symptoms within our group are described as follows: fatigue (53.3%), dyspnea (40.3%), arthralgia and/or myalgia (43%), cephalea (40.5%), sleep disorders (35.7%) and coughing (31.3%). 72% of the patients presented four or more post-COVID 19 symptoms, 9% two symptoms, and 10% only one symptom. Conclusion: The findings of this study are consistent with international literature publicly available. The distribution and prevalence of post-COVID symptoms highlight the importance of further research to improve understanding and its potential consequences and implications in terms of quality of life and health care planning services.

Analysis of pulmonary function in post-Covid-19 patients at a university hospital / Análise da função pulmonar de pacientes com síndrome pós-covid-19 em um hospital universitário

Objective: Evaluate the spirometry pattern of patients who persisted with respiratory symptoms after infection with SARS-Cov-2. Methods: Cross-sectional, observational, retrospective study in a single center, approved by the local Ethics Committee (registration number: 5,120,720). Patients who underwent spirometry due to Post-Covid Syndrome were evaluated to analyze the spirometric pattern presented. The following were collected: exam identification data, sex, age, symptom time, the need for mechanical ventilation, and quality of spirometry, in addition to the following exam parameters: FVC, FEV1, FEV1/FVC, FEV 25-75/FVC, and FEV 75, evaluating the Lower Limit of Normality, pre-bronchodilator and post-bronchodilator values. Results: Data from 72 patients were collected. Of these, 55.5% of patients had spirometry results within normal limits. The most frequent respiratory alteration was obstructive respiratory disorder, present in 29.2% of the patients. Conclusions: The presence of dyspnea in patients with normal spirometry may indicate further evaluation of lung function and other etiologies for dyspnea (AU).

Objetivo: Avaliar o padrão de espirometria de pacientes que persistiram com sintomas respiratórios após a infecção pelo SARS-CoV-2. Métodos: Estudo transversal, observacional e retrospectivo realizado em um único centro, aprovado pelo Comitê de Ética local (número do parecer: 5.120.720). Foram avaliados pacientes submetidos a espirometria devido à Síndrome Pós-Covid, a fim de analisar o padrão espirométrico apresentado. Os seguintes dados foram coletados: identificação do exame, sexo, idade, tempo de sintomas, necessidade de ventilação mecânica, qualidade da espirometria, além dos seguintes parâmetros do exame: CVF, VEF1, VEF1/CVF, VEF 25-75/CVF e VEF 75, avaliando o Limite Inferior da Normalidade, valores pré-broncodilatador e pós-broncodilatador. Resultados: Foram coletados dados de 72 pacientes. Destes, 55,5% apresentaram resultados espirométricos dentro dos limites normais. A alteração respiratória mais frequente foi o distúrbio ventilatório obstrutivo, presente em 29,2% dos pa-cientes. Conclusões: A presença de dispneia em pacientes com espirometria dentro da normalidade pode indicar uma avaliação adicional da função pulmonar, assim como outras etiologias para a dispneia (AU).

Dynapenia and Sarcopenia in Post-COVID-19 Syndrome Hospitalized Patients Are Associated with Severe Reduction in Pulmonary Function.

BACKGROUND: After hospital discharge, post-COVID-19 syndrome has been observed to be associated with impaired diffusing capacity, respiratory muscle strength, and lung imaging abnormalities, in addition to loss of muscle mass/strength, sarcopenia, and obesity impact exercise tolerance, pulmonary functions, and overall prognosis. However, the relationship between lung function and the coexistence of obesity with low muscle strength and sarcopenia in post-COVID-19 patients remains poorly investigated. Therefore, our aim was to evaluate the association between lung function and the coexistence of obesity with dynapenia and sarcopenia in post-COVID-19 syndrome patients. METHODS: This cross-sectional study included subjects who were hospitalized due to moderate to severe COVID-19, as confirmed by PCR testing. Subjects who could not be contacted, declined to participate, or died before the follow-up visit were excluded. RESULTS: A total of 711 subjects were evaluated; the mean age was 53.64 ± 13.57 years, 12.4% had normal weight, 12.6% were dynapenic without obesity, 8.3% had sarcopenia, 41.6% had obesity, 21.2% had dynapenic obesity, and 3.8% had sarcopenic obesity. In terms of pulmonary function, the dynapenic subjects showed decreases of -3.45% in FEV1, -12.61 cmH2O in MIP, and -12.85 cmH2O in MEP. On the other hand, the sarcopenic subjects showed decreases of -6.14 cmH2O in MIP and -11.64 cmH2O in MEP. The dynapenic obesity group displayed a reduction of -12.13% in PEF. CONCLUSIONS: In post-COVID-19 syndrome, dynapenia and sarcopenia-both with and without obesity-have been associated with lower lung function.

Investigating autonomic nervous system dysfunction among patients with post-COVID condition and prolonged cardiovascular symptoms.

Heart Rate Variability (HRV) and arterial pressure (AP) variability and their responses to head-up tilt test (HUTT) were investigated in Post-COVID-19 syndrome (PCS) patients reporting tachycardia and/or postural hypotension. Besides tachycardia, PCS patients also showed attenuation of the following HRV parameters: RMSSD [square root of the mean of the sum of the squares of differences between adjacent normal-to-normal (NN) intervals] from statistical measures; the power of RR (beat-to-beat interval) spectra at HF (high frequency) from the linear method spectral analysis; occurrence of 2UV (two unlike variation) pattern of RR from the nonlinear method symbolic analysis; and the new family of statistics named sample entropy, when compared to control subjects. Basal AP and LF (low frequency) power of systolic AP were similar between PCS patients and control subjects, while 0 V (zero variation) patterns of AP from the nonlinear method symbolic analysis were exacerbated in PCS patients. Despite tachycardia and a decrease in RMSSD, no parameter of HRV changed during HUTT in PCS patients compared to control subjects. PCS patients reassessed after 6 months showed higher HF power of RR spectra and a higher percentage of 2UV pattern of RR. Moreover, the reassessed PCS patients showed a lower occurrence of 0 V patterns of AP, while the HUTT elicited HR (heart rate) and AP responses identical to control subjects. The HRV and AP variability suggest an autonomic dysfunction with sympathetic predominance in PCS patients. In contrast, the lack of responses of HRV and AP variability indices during HUTT indicates a marked impairment of autonomic control. Of note, the reassessment of PCS patients showed that the noxious effect of COVID-19 on autonomic control tended to fade over time.

Post-COVID-19 Syndrome: Audiometric Findings in Patients with Audiological Symptoms.

Since the SARS-CoV-19 pandemic, the possibility of audiological involvement by this virus has been speculated without being able to generate a true cause-effect relationship. The objective of this observational, descriptive cross-sectional study is to describe the audiometric findings of post-COVID-19 patients with audiological symptoms. A sample of 47 patients with a diagnosis of COVID-19 infection was included: The age range was between 18 and 50 years old, the mean age was 37.0 years with a standard deviation of ±8.3 years, and 32 patients (68.1%) were female and 15 male patients (31.9%). Patients were recruited by the Otolaryngology service at Civil Fray Antonio Mayor Hospital from September 2020 to December 2022. Tonal audiometry was performed in a window of no more than 3 months from the onset of symptoms. The Chi-square test was used and odds ratios (OR) were established to associate the variables of post-COVID-19 audiological symptoms and the prevalence of hearing loss. A 95% confidence interval (CI) and statistical significance were considered of p ≤ 0.05. The audiological symptoms presented a prevalence of 74.4% for a sensation of ear fullness, 59.6% for tinnitus, and 51.1% for a sensation of hearing loss.

The Relationship between Paresthesia and the Presence of Cardiac Dysautonomia in Patients with Post-COVID-19 Syndrome: A Preliminary Observational Study.

INTRODUCTION: Post-Coronavirus disease 2019 (Post-COVID-19) syndrome has neurological symptoms related to the dysfunction of the autonomous nerve system. However, a pathogenic relationship between post-COVID-19 syndrome and dysautonomia still remains to be demonstrated. Establishing a pathogenic relationship between paresthesia and the presence of cardiac dysautonomia in patients with post-COVID-19 syndrome is the objective of this study. PARTICIPANTS AND METHODS: This observational study was carried out in the neurophysiology service wing of the Juan Bruno Zayas Hospital, Santiago de Cuba, in Cuba. The patients were recruited through a post-COVID-19 clinic at the same hospital. A variability study of cardiac frequency and a test of autonomic cardiovascular reflexes was carried out, which is composed of deep breathing, orthostatism, and the Valsalva maneuver. RESULTS: The variability parameters of the cardiac frequency, the expiration-inspiration ratio between deep breaths, and the Valsalva Index showed no statistically significant differences between healthy participants and those with post-COVID-19 syndrome. During the Valsalva maneuver, there was a greater cardiac frequency response in participants with post-COVID-19 syndrome than in healthy subjects. The difference in supine and standing blood pressure was significantly minor in patients with post-COVID-19 syndrome. The logarithm of high frequency (log HF) increased significantly in patients with paresthesia when compared to patients without paresthesia. CONCLUSIONS: In the autonomic function tests, no signs of dysautonomia were found in patients with post-COVID-19 syndrome. The presence of paresthesias is associated with differences in cardiac vagal activity, which may suggest that damage to peripheral sensory nerve fibers could be associated with an affectation to autonomic fibres.

Post-acute COVID-19 in three doses vaccinated autoimmune rheumatic diseases patients: frequency and pattern of this condition.

BACKGROUND: Data on post-acute COVID-19 in autoimmune rheumatic diseases (ARD) are scarce, focusing on a single disease, with variable definitions of this condition and time of vaccination. The aim of this study was to evaluate the frequency and pattern of post-acute COVID-19 in vaccinated patients with ARD using established diagnosis criteria. METHODS: Retrospective evaluation of a prospective cohort of 108 ARD patients and 32 non-ARD controls, diagnosed with SARS-CoV-2 infection (RT-PCR/antigen test) after the third dose of the CoronaVac vaccine. Post-acute COVID-19 (≥ 4 weeks and > 12 weeks of SARS-CoV-2 symptoms) were registered according to the established international criteria. RESULTS: ARD patients and non-ARD controls, balanced for age and sex, had high and comparable frequencies of ≥ 4 weeks post-acute COVID-19 (58.3% vs. 53.1%, p = 0.6854) and > 12 weeks post-acute COVID-19 (39.8% vs. 46.9%, p = 0.5419). Regarding ≥ 4 weeks post-acute COVID-19, frequencies of ≥ 3 symptoms were similar in ARD and non-ARD controls (54% vs. 41.2%, p = 0.7886), and this was also similar in > 12 weeks post-acute COVID-19 (68.3% vs. 88.2%, p = 0.1322). Further analysis of the risk factors for ≥ 4 weeks post-acute COVID-19 in ARD patients revealed that age, sex, clinical severity of COVID-19, reinfection, and autoimmune diseases were not associated with this condition (p > 0.05). The clinical manifestations of post-acute COVID-19 were similar in both groups (p > 0.05), with fatigue and memory loss being the most frequent manifestations. CONCLUSION: We provide novel data demonstrating that immune/inflammatory ARD disturbances after third dose vaccination do not seem to be a major determinant of post-acute COVID-19 since its pattern is very similar to that of the general population. Clinical Trials platform (NCT04754698).

Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors.

Most COVID-19 survivors report experiencing at least one persistent symptom after recovery, including sympathovagal imbalance. Relaxation techniques based on slow-paced breathing have proven to be beneficial for cardiovascular and respiratory dynamics in healthy subjects and patients with various diseases. Therefore, the present study aimed to explore the cardiorespiratory dynamics by linear and nonlinear analysis of photoplethysmographic and respiratory time series on COVID-19 survivors under a psychophysiological assessment that includes slow-paced breathing. We analyzed photoplethysmographic and respiratory signals of 49 COVID-19 survivors to assess breathing rate variability (BRV), pulse rate variability (PRV), and pulse-respiration quotient (PRQ) during a psychophysiological assessment. Additionally, a comorbidity-based analysis was conducted to evaluate group changes. Our results indicate that all BRV indices significantly differed when performing slow-paced breathing. Nonlinear parameters of PRV were more appropriate for identifying changes in breathing patterns than linear indices. Furthermore, the mean and standard deviation of PRQ exhibited a significant increase while sample and fuzzy entropies decreased during diaphragmatic breathing. Thus, our findings suggest that slow-paced breathing may improve the cardiorespiratory dynamics of COVID-19 survivors in the short term by enhancing cardiorespiratory coupling via increased vagal activity.

A Molecular Biomarker-Based Triage Approach for Targeted Treatment of Post-COVID-19 Syndrome Patients with Persistent Neurological or Neuropsychiatric Symptoms.

Approximately 30% of COVID-19 cases may experience chronic symptoms, known as post-COVID-19 syndrome (PCS). Common PCS symptoms can include fatigue, cognitive impairment, and persistent physical, neurological, and neuropsychiatric complaints. To improve healthcare and management of the current and future pandemics, we highlight the need for establishing interdisciplinary post-viral outpatient clinics comprised of specialists in fields such as psychiatry, psychotherapy, neurology, cardiology, pneumology, and immunology. In this way, PCS patients with a high health burden can receive modern diagnostics and targeted therapeutic recommendations. A key objective is to distinguish the "sick recovered" from the "healthy recovered." Our hypothesis is that there is a PCS subgroup with autoimmune-mediated systemic and brain-vascular dysregulation, which may lead to circulatory disorders, fatigue, cognitive impairment, depression, and anxiety. This can be clarified using a combination of specific antibody diagnostics and precise clinical, psychological, and apparative testing.

Diarrea en pacientes con COVID-19 y en el síndrome pos-COVID

La COVID-19, actual pandemia global, es causada por el coronavirus SARS-CoV-2, capaz de provocar un síndrome respiratorio agudo grave. Esta enfermedad es multisistémica y heterogénea, y no siempre se relaciona con la gravedad de la enfermedad pulmonar. De hecho, hasta un tercio de los pacientes puede presentar síntomas gastrointestinales como la diarrea -que se ha reportado como uno de los de mayor impacto-, tanto a consecuencia de la infección aguda como del síndrome pos-COVID-19. Además, los diversos esquemas de tratamientos que se indican pueden tener efectos sobre la diarrea, lo que la convierte en un motivo frecuente de consulta en la especialidad de gastroenterología. Los pacientes con enfermedades intestinales previas podrían ser más susceptibles a esta manifestación. Debido a esto, se realizó una búsqueda exhaustiva de artículos sobre el tema, publicados en revistas científicas de alta visibilidad, cubanas y extranjeras, con el objetivo de exponer las causas y características de la diarrea que se presenta en pacientes infectados con SARS-CoV-2. Se recopilaron 168 artículos, de los cuales 30 fueron utilizados en la presente revisión, que permitirá documentar a los médicos de asistencia, para un mejor manejo de la diarrea en pacientes en las fases mencionadas.

COVID-19, the current global pandemic, is produced by the SARS-CoV-2 coronavirus, capable of causing a severe acute respiratory syndrome. This disease is multi-systemic and heterogeneous, and is not always related to the severity of the lung disease. In fact, up to a third of the patients can show gastrointestinal symptoms like diarrhea-which has been reported as one of the most impactful-both as a consequence of the acute infection and of the post-COVID-19 syndrome. In addition, the various treatment schemes indicated may have effects on diarrhea, what makes them a frequent reason for consultation in the specialty of gastroenterology. Patients with previous intestinal diseases could be more susceptible to this manifestation. Due to this, an exhaustive search of articles on the theme, published in Cuban and foreign journals of high visibility, was carried out, with the aim of exposing the causes and characteristics of the diarrhea that occurs in patients infected by SARS-CoV-2. 168 articles were compiled, of which 30 were used in the current review, which will allow documenting the attending physician for a better management of diarrhea in patients in the mentioned phases.

Post-COVID-19 syndrome and quality of life impairment in severe COVID-19 Mexican patients.

Introduction: Post-COVID-19 syndrome (PCS) usually occurs 3 months after the onset of COVID-19 with a symptom duration of at least 2 months without an alternative diagnosis. Objective: This study aimed to describe the prevalence, characteristics, and impact on the quality of life (QoL) of post-COVID-19 syndrome in patients with a history of hospitalization for COVID-19. Materials and methods: We conducted a cross-sectional study. Patients who required hospitalization due to COVID-19 between March 2020 and October 2021 were invited to answer a PCS questionnaire and the EQ-5D instrument. A total of 246 patients were included: 187 (76%) met the definition of PCS and 54% were men, with a median age of 50 years (IQR 41-63). Results: From 187 patients with PCS, the median time to symptom onset after hospital discharge was 1 day (IQR 1-20), and the median symptom duration was 150 days (IQR 90-225). A total of 27 different symptoms were reported; the most frequent were difficulty concentrating (81%), dyspnea (75%), arthralgia (71%), fatigue (68%), and hair loss (60%). Some symptoms, such as difficulty concentrating, arthralgia/myalgia, and hair loss, were more prevalent in women with PCS. Patients with PCS had a higher frequency of tobacco smoking (37 vs. 4%, p = 0.02) and increased severity of lung involvement in the initial chest tomography (75 vs. 58%, p = 0.01) than those without PCS. Patients with PCS were less likely to receive antivirals (15.5 vs. 27%, p = 0.04). No difference between ICU admission, mechanical ventilation, and length of hospital stay was found. Patients with PCS had a lower visual analog scale result for EQ-5D vs. those without (80 [IQR 70-90] vs. 89.5 [IQR 75-90], p = 0.05). All five QoL dimensions were affected in PCS patients, showing increased pain/discomfort (67 vs. 39%, p = < 0.001), difficulties in performing usual activities (39.2 vs. 20.3%, p = 0.03), and anxiety/depression (57.5 vs. 37%, p = 0.02). Conclusion: PCS occurred in 76% of hospitalized patients with prolonged duration and QoL impairment. Neurological symptoms such as difficulty concentrating were the most frequent symptoms. Timely diagnostic and therapeutic interventions are required.

Leveraging Serologic Testing to Identify Children at Risk For Post-Acute Sequelae of SARS-CoV-2 Infection: An Electronic Health Record-Based Cohort Study from the RECOVER Program.

Using an electronic health record-based algorithm, we identified children with Coronavirus disease 2019 (COVID-19) based exclusively on serologic testing between March 2020 and April 2022. Compared with the 131 537 polymerase chain reaction-positive children, the 2714 serology-positive children were more likely to be inpatients (24% vs 2%), to have a chronic condition (37% vs 24%), and to have a diagnosis of multisystem inflammatory syndrome in children (23% vs <1%). Identification of children who could have been asymptomatic or paucisymptomatic and not tested is critical to define the burden of post-acute sequelae of severe acute respiratory syndrome coronavirus 2 infection in children.

Prevalence and Associated Factors of Post-COVID-19 Syndrome in a Brazilian Cohort after 3 and 6 Months of Hospital Discharge.

(1) Objectives: To evaluate the frequency and factors associated with the Post-COVID-19 Syndrome (PCS) in COVID-19 survivors after 3 and 6 months of hospital discharge; (2) Methods: We conducted a cohort study with patients who were hospitalized with COVID-19 in a referral public hospital in Brasília, Federal District, Brazil. After 3 and 6 months of discharge, patients answered a questionnaire about PCS symptoms. Poisson regression with robust variance was used to estimate the crude and adjusted prevalence ratios (PR and aPR) of PCS. (3) Results: The prevalence of PCS was 81% and 61% after 3 and 6 months of hospital discharge, respectively. The main symptoms after 3 months of discharge were hair loss (44%), fatigue (42%), and memory loss (39%); while after 6 months, they were memory loss (29%) and fatigue (27%). In the multivariate analysis, the main factor associated with PCS was female gender (aPR): 1.28 (1.16-1.41) and 1.60 (1.34-1.90), 3 and 6 months after hospital discharge, respectively. Hypercholesterolemia was also associated with PCS after 3 months aPR of 1.15 (1.04-1.27). After 6 months of discharge, obesity [aPR: 1.22 (1.03-1.45)] and pronation [aPR: 1.15 (1.06-1.25)] were relevant associated factors. (4) Conclusions: The prevalence of PCS was high in COVID-19 survivors who had the moderate and severe forms of the disease. Memory loss was the most persistent symptom. Our data pointed to female gender, hypercholesterolemia, obesity, and pronation during hospitalization as relevant PCS-associated risk factors.

Aged people's health needs in the face of long covid-19 and access to health services / Requerimientos de salud de adultos mayores frente a covid-19 prolongado y acceso a servicios de salud / Necessidades de saúde dos idosos frente à covid longa e o acesso aos serviços de saúde

ABSTRACT Objective: to understand the health needs of aged people who had long Covid-19 and details about access to the health system to meet these demands. Method: an exploratory and qualitative study carried out with 41 aged individuals who had Covid-19 in 2020 and presented residual symptoms 18 months after the infection. Data collection took place between February and July 2022 through semi-structured interviews via telephone calls. In the analysis, initial and focused coding analytical techniques were used and the conceptual basis was grounded on the Primary Health Care "Accessibility" attribute. Results: four categories emerged when analyzing the results, namely: Understanding the need for professional care; Recognizing the demands that led aged people to seek health services; Understanding availability of the services; and Analyzing payment capacity. Conclusion: the aged population has developed specific health demands related to long Covid-19, and public and private health services are heterogeneous in their approach to this new condition, as care based on guidelines proposed by official bodies is not unanimous in public and private services and Health Plan Operators.

RESUMEN Objetivo: averiguar las necesidades de salud de los adultos mayores que tuvieron Covid-19 prolongado y detalles del acceso al sistema de salud para suplir estos requerimientos. Método: estudio cualitativo y exploratorio realizado con 41 adultos mayores que tuvieron Covid-19 en 2020 y presentaron síntomas residuales 18 meses después de la infección. La recolección de datos tuvo lugar entre febrero y julio de 2022 por medio de entrevistas telefónicas semiestructuradas; en el análisis se utilizaron las técnicas analíticas de codificación inicial y focalizada y la base conceptual se fundamentó en el atributo "Accesibilidad" de la Atención Primaria de la Salud. Resultados: surgieron cuatro categorías en el análisis de los resultados, a saber: Comprender la necesidad de atención profesional; Reconocer los requerimientos que llevaron a los adultos mayores a procurar un servicio de salud; Percibir la disponibilidad de los servicios; y Analizar la capacidad de pago. Conclusión: la población anciana desarrolló requerimientos de la salud específicos relacionados con Covid-19 prolongado y los servicios de salud públicos y privados presentan cierta heterogeneidad en relación al enfoque de esta nueva condición, puesto que la atención basada en directrices propuestas por órganos oficiales no es unánime en los servicios públicos, privados y de Operadoras de Planes de Salud.

RESUMO Objetivo: conhecer as necessidades de saúde dos idosos que tiveram a Covid longa e o acesso ao sistema de saúde para atender essas demandas. Método: estudo qualitativo exploratório, realizado com 41 idosos que tiveram Covid-19 no ano de 2020 e apresentaram sintomas residuais após 18 meses da infecção. A coleta de dados ocorreu entre fevereiro e julho de 2022 por meio de entrevistas semiestruturadas via telefone. Na análise foram utilizadas as técnicas de codificação inicial e focalizada e a base conceitual se fundamentou no atributo "Acessibilidade" da Atenção Primária à Saúde. Resultados: na análise dos resultados emergiram quatro categorias: Compreendendo a necessidade de atendimento profissional; Reconhecendo as demandas que levaram os idosos a buscar o serviço de saúde; Percebendo a disponibilidade dos serviços; e Analisando a capacidade de pagamento. Conclusão: a população idosa desenvolveu demandas específicas de saúde relacionadas à Covid longa, e os serviços de saúde público e privado possuem heterogeneidade quanto à abordagem dessa nova condição, uma vez que o atendimento pautado em diretrizes propostas por órgãos oficiais não é unânime nos serviços públicos, privados e Operadoras de Plano de Saúde.

Post-acute COVID-19 in three doses vaccinated autoimmune rheumatic diseases patients: frequency and pattern of this condition

Abstract Background Data on post-acute COVID-19 in autoimmune rheumatic diseases (ARD) are scarce, focusing on a single disease, with variable definitions of this condition and time of vaccination. The aim of this study was to evaluate the frequency and pattern of post-acute COVID-19 in vaccinated patients with ARD using established diagnosis criteria. Methods Retrospective evaluation of a prospective cohort of 108 ARD patients and 32 non-ARD controls, diagnosed with SARS-CoV-2 infection (RT-PCR/antigen test) after the third dose of the CoronaVac vaccine. Post-acute COVID-19 (≥ 4 weeks and > 12 weeks of SARS-CoV-2 symptoms) were registered according to the established international criteria. Results ARD patients and non-ARD controls, balanced for age and sex, had high and comparable frequencies of ≥ 4 weeks post-acute COVID-19 (58.3% vs. 53.1%, p = 0.6854) and > 12 weeks post-acute COVID-19 (39.8% vs. 46.9%, p = 0.5419). Regarding ≥ 4 weeks post-acute COVID-19, frequencies of ≥ 3 symptoms were similar in ARD and non-ARD controls (54% vs. 41.2%, p = 0.7886), and this was also similar in > 12 weeks post-acute COVID-19 (68.3% vs. 88.2%, p = 0.1322). Further analysis of the risk factors for ≥ 4 weeks post-acute COVID-19 in ARD patients revealed that age, sex, clinical severity of COVID-19, reinfection, and autoimmune diseases were not associated with this condition (p > 0.05). The clinical manifestations of post-acute COVID-19 were similar in both groups (p > 0.05), with fatigue and memory loss being the most frequent manifestations. Conclusion We provide novel data demonstrating that immune/inflammatory ARD disturbances after third dose vaccination do not seem to be a major determinant of post-acute COVID-19 since its pattern is very similar to that of the general population. Clinical Trials platform (NCT04754698).