Revista Brasileira de Terapia Intensiva最新文献

Objective: To develop a simple, robust, safe and efficient invasive mechanical ventilator that can be used in remote areas of the world or war zones where the practical utility of more sophisticated equipment is limited by considerations of maintainability, availability of parts, transportation and/or cost.

Methods: The device implements the pressure-controlled continuous mandatory ventilation mode, complemented by a simple assist-control mode. Continuous positive airway pressure is also possible. The consumption of compressed gases is minimized by avoiding a continuous flow of oxygen or air. Respiratory rates and inspiration/expiration time ratios are electronically determined, and an apnea/power loss alarm is provided.

Results: The pressure profiles were measured for a range of conditions and found to be adjustable within a ± 2.5cmH2O error margin and stable well within this range over a 41-hour period. Respiratory cycle timing parameters were precise within a few percentage points over the same period. The device was tested for durability for an equivalent period of four months. Chemical and biological tests failed to identify any contamination of the gas by volatile organic compounds or microorganisms. A ventilation test on a large animal, in comparison with a well established ventilator, showed that the animal could be adequately ventilated over a period of 60 minutes, without any noticeable negative aftereffects during the subsequent 24-hour period.

Conclusion: This ventilator design may be viable, after further animal tests and formal approval by the competent authorities, for clinical application in the abovementioned atypical circumstances.

[This corrects the article doi: 10.5935/0103-507X.20220020-pt] [This corrects the article doi: 10.5935/0103-507X.20220020-en].

Objective: To determine the incidence of postintensive care syndrome in a cohort of critically ill patients admitted to the intensive care unit and to identify risk factors related to its development in the physical, cognitive and mental health areas.

Methods: This was a prospective observational cohort study developed in the intensive care unit of a university hospital. Patients with intensive care unit stays equal to or longer than one week and the need for mechanical ventilation for more than 3 days, shock or delirium were included in the study. Demographic variables, reasons for admission, diagnoses, sedation, type of mechanical ventilation used, complications and length of stay were recorded. A univariate analysis was performed to identify risk factors related to postintensive care syndrome. The scales used for the assessment of the different spheres were Barthel, Pfeiffer, Hospital Anxiety and Depression Scale and Impact of Event Scale-6. The main variables of interest were postintensive care syndrome incidence overall and by domains. Risk factors were examined in each of the health domains (physical, cognitive and mental health).

Results: Eighty-seven patients were included. The mean Acute Physiology and Chronic Health Evaluation II score was 16.5. The mean number of intensive care unit days was 17. The incidence of global postintensive care syndrome was 56.3% (n = 49, 95%CI 45.8 - 66.2%). The incidence of postintensive care syndrome in each of the spheres was 32.1% (physical), 11.5% (cognitive), and 36.6% (mental health).

Conclusions: The incidence of postintensive care syndrome is 56.3%. The mental health sphere is the most frequently involved. The risk factors are different depending on the area considered.

Objective: To evaluate whether critical SARS-CoV-2 infection is more frequently associated with signs of corticospinal tract dysfunction and other neurological signs, symptoms, and syndromes, than other infectious pathogens.

Methods: This was a prospective cohort study with consecutive inclusion of patients admitted to intensive care units due to primary infectious acute respiratory distress syndrome requiring invasive mechanical ventilation > 48 hours. Eligible patients were randomly assigned to three investigators for clinical evaluation, which encompassed the examination of signs of corticospinal tract dysfunction. Clinical data, including other neurological complications and possible predictors, were independently obtained from clinical records.

Results: We consecutively included 54 patients with acute respiratory distress syndrome, 27 due to SARS-CoV-2 and 27 due to other infectious pathogens. The groups were comparable in most characteristics. COVID-19 patients presented a significantly higher risk of neurological complications (RR = 1.98; 95%CI 1.23 - 3.26). Signs of corticospinal tract dysfunction tended to be more prevalent in COVID-19 patients (RR = 1.62; 95%CI 0.72 - 3.44).

Conclusion: Our study is the first comparative analysis between SARS-CoV-2 and other infectious pathogens, in an intensive care unit setting, assessing neurological dysfunction. We report a significantly higher risk of neurological dysfunction among COVID-19 patients. As such, we suggest systematic screening for neurological complications in severe COVID-19 patients.

Objective: To evaluate the effects of critical illness on the functional status of children aged zero to 4 years with or without a history of prematurity after discharge from the pediatric intensive care unit.

Methods: This was a secondary cross-sectional study nested in an observational cohort of survivors from a pediatric intensive care unit. Functional assessment was performed using the Functional Status Scale within 48 hours after discharge from the pediatric intensive care unit.

Results: A total of 126 patients participated in the study, 75 of whom were premature, and 51 of whom were born at term. Comparing the baseline and functional status at pediatric intensive care unit discharge, both groups showed significant differences (p < 0.001). Preterm patients exhibited greater functional decline at discharge from the pediatric intensive care unit (61%). Among patients born at term, there was a significant correlation between the Pediatric Index of Mortality, duration of sedation, duration of mechanical ventilation and length of hospital stay with the functional outcomes (p = 0.05).

Conclusion: Most patients showed a functional decline at discharge from the pediatric intensive care unit. Although preterm patients had a greater functional decline at discharge, sedation and mechanical ventilation duration influenced functional status among patients born at term.

Objective: To describe the rate and factors related to nonreturn to work in the third month after discharge from the intensive care unit and the impact of unemployment, loss of income and health care expenses for survivors.

Methods: This was a prospective multicenter cohort study that included survivors of severe acute illness who were hospitalized between 2015 and 2018, previously employed, and who stayed more than 72 hours in the intensive care unit. Outcomes were assessed by telephone interview in the third month after discharge.

Results: Of the 316 patients included in the study who had previously worked, 193 (61.1%) did not return to work within 3 months after discharge from the intensive care unit. The following factors were associated with nonreturn to work: low educational level (prevalence ratio 1.39; 95%CI 1.10 - 1.74; p = 0.006), previous employment relationship (prevalence ratio 1.32; 95%CI 1 10 - 1.58; p = 0.003), need for mechanical ventilation (prevalence ratio 1.20; 95%CI 1.01 - 1.42; p = 0.04) and physical dependence in the third month after discharge (prevalence ratio 1.27; 95%CI 1.08 - 1.48; p = 0.003). Survivors who were unable to return to work more often had reduced family income (49.7% versus 33.3%; p = 0.008) and increased health expenditures (66.9% versus 48.3%; p = 0.002). compared to those who returned to work in the third month after discharge from the intensive care unit.

Conclusion: Intensive care unit survivors often do not return to work until the third month after discharge from the intensive care unit. Low educational level, formal job, need for ventilatory support and physical dependence in the third month after discharge were related to nonreturn to work. Failure to return to work was also associated with reduced family income and increased health care costs after discharge.

Objective: To describe the IMPACTO-MR, a Brazilian nationwide intensive care unit platform study focused on the impact of health care-associated infections due to multidrug-resistant bacteria.

Methods: We described the IMPACTO-MR platform, its development, criteria for intensive care unit selection, characterization of core data collection, objectives, and future research projects to be held within the platform.

Results: The core data were collected using the Epimed Monitor System® and consisted of demographic data, comorbidity data, functional status, clinical scores, admission diagnosis and secondary diagnoses, laboratory, clinical, and microbiological data, and organ support during intensive care unit stay, among others. From October 2019 to December 2020, 33,983 patients from 51 intensive care units were included in the core database.

Conclusion: The IMPACTO-MR platform is a nationwide Brazilian intensive care unit clinical database focused on researching the impact of health care-associated infections due to multidrug-resistant bacteria. This platform provides data for individual intensive care unit development and research and multicenter observational and prospective trials.

A healthy 55-year-old woman unvaccinated for SARS-CoV-2 was admitted to the hospital with a SARS-CoV-2 infection with rapid clinical deterioration. On the 17th day of disease, she was intubated, and on the 24th day, the patient was referred and admitted to our extracorporeal membrane oxygenation center. Extracorporeal membrane oxygenation support was initially used to enable lung recovery and allow the patient to rehabilitate and improve her physical condition. Despite an adequate physical condition, the lung function was not adequate to discontinue extracorporeal membrane oxygenation, and the patient was considered for lung transplantation. The intensive rehabilitation program was implemented to improve and maintain the physical status throughout all phases. The extracorporeal membrane oxygenation run had several complications that hindered successful rehabilitation: right ventricular failure that required venoarterial-venous extracorporeal membrane oxygenation for 10 days; six nosocomial infections, four with progression to septic shock; and knee hemarthrosis. To reduce the risk of infection, invasive devices (i.e., invasive mechanical ventilation, central venous catheter, and vesical catheter) were removed whenever possible, keeping only those essential for monitoring and care. After 162 days of extracorporeal membrane oxygenation support without other organ dysfunction, bilateral lobar lung transplantation was performed. Physical and respiratory rehabilitation were continued to promote independence in daily life activities. Four months after surgery, the patient was discharged.