Incidência, fatores de risco e desfechos da extubação não planejada em pacientes adultos em um hospital de ensino com recursos limitados nas Filipinas: um estudo de coorte / Incidence, risk factors, and outcomes of unplanned extubation in adult patients in a resource-limited teaching hospital in the Philippines: a cohort study

RESUMO Objetivo: Determinar a incidência, os fatores de risco e os desfechos da extubação não planejada em pacientes adultos. Métodos: Conduzimos estudo prospectivo de coorte de pacientes adultos intubados admitidos em ala de atendimento gratuito em um hospital governamental terciário de ensino nas Filipinas. Incluíram-se tanto pacientes em cuidados de terapia intensiva quanto fora dela. Os pacientes foram seguidos até a alta ou até o sétimo dia após a extubação. Resultados: Os desfechos dos 191 pacientes incluídos foram: extubação planejada (35%), extubação não planejada (19%), óbito (39%) e alta a pedido (7%). A regressão de riscos competitivos demonstrou que o sexo masculino (OR bruta de 2,25; IC95% 1,10 - 4,63) e a idade (OR bruta: 0,976; IC95%: 0,957 - 0,996) foram fatores basais significantes. O turno da noite (OR bruta: 24,6; IC95%: 2,87 - 211) também teve associação consistente com maior ocorrência de extubação não planejada. Dentre os desfechos após a extubação, ocorreram significantemente mais, entre os pacientes com extubação não planejada, reintubação (extubação não planejada, com 61,1%, versus extubação planejada, com 25,4%), insuficiência respiratória aguda (extubação não planejada, com 38,9%, versus extubação planejada, com 17,5%) e eventos cardiovasculares (extubação não planejada, com 8,33%, versus extubação planejada, com 1,49%). A admissão à unidade de terapia intensiva não se associou com risco menor de extubação não planejada (OR bruta de 1,15; IC95% 0,594 - 2,21). Conclusão: Muitos pacientes intubados tiveram extubação não planejada. Os pacientes admitidos em outras unidades, que não a de terapia intensiva, não tiveram tendências mais elevadas de extubação não planejada.

ABSTRACT Objective: We aimed to determine the incidence, risk factors, and outcomes of unplanned extubation among adult patients. Methods: We conducted a prospective cohort study of adult intubated patients admitted to the charity wards of a government tertiary teaching hospital in the Philippines. Patients managed in both intensive care and nonintensive care settings were included. Patients were followed-up until discharge or until seven days postextubation. Results: The outcomes of the 191 included patients were planned extubation (35%), unplanned extubation (19%), death (39%), and discharge against advice (7%). Competing risk regression showed that male sex (Crude OR: 2.25, 95%CI: 1.10 - 4.63) and age (Crude OR 0.976, 95%CI: 0.957 - 0.996) were significant baseline factors. The night shift (Crude OR: 24.6, 95%CI: 2.87 - 211) was also consistently associated with more unplanned extubations. Among postextubation outcomes, reintubation (unplanned extubation: 61.1% versus planned extubation: 25.4%), acute respiratory failure (unplanned extubation: 38.9% versus planned extubation: 17.5%), and cardiovascular events (unplanned extubation: 8.33% versus planned extubation: 1.49%) occurred significantly more often among the unplanned extubation patients. Admission in an intensive care unit was not associated with a lower risk of unplanned extubation (Crude OR 1.15, 95%CI: 0.594 - 2.21). Conclusion: Many intubated patients had unplanned extubation. Patients admitted in nonintensive care unit settings did not have significantly higher odds of unplanned extubation.

Non-invasive ventilation versus conventional oxygen therapy in immunocompromised patients: A meta-analysis

INTRODUCTION: Respiratory failure is common in immunocompromised patients. Intubation and mechanical ventilation (MV) is the mainstay of treatment but is associated with increased risk of pneumonia and other complications. Non-invasive ventilation (NIV) is an alternative to MV in a select group of patients and aims to avoid the complications of MV. In these patients, we performed a meta-analysis on the effect of NIV versus conventional oxygen therapy in reducing intubation rates and other important clinical outcomes. METHODS: We performed an extensive online and unpublished data search for relevant studies that met the inclusion criteria. Randomized controlled trials that used NIV versus conventional oxygen therapy in immunocompromised patients with respiratory failure were included in the metaanalysis. Eligbility and risk of bias assessments were performed independently by three authors. The primary outcome of interest was intubation and mechanical ventilation rate. The secondary outcomes were intensive care unit (ICU) and all-cause mortality, ICU length of stay and duration of mechanical ventilation. RESULTS: Out of the twenty initially screened studies, four studies with a total of 553 patients met the criteria for inclusion and were included in the analysis. Patients given NIV were 38% less likely to be intubated vs. those given oxygen, RR 0.62 (95%CI 0.42,0.93); however, this analysis result is significantly heterogenous. After sensitivity analysis, results showed 48% less likelihood of intubation and mechanical ventilation in the group treated with NIV, RR 0.52 [95% confidence interval (CI) 0.35,0.77]. Patients on NIV had 1.18 days less stay in the ICU vs. oxygen group (95%CI -1.84,-0.52 days ). Three studies included ICU mortality in their outcomes and showed a 54% decrease in ICU mortality among patients given NIV, RR 0.46 (95% CI 0.17, 1.29), however this result is non-significant and heterogenous I2=58%. There was no statistically significant decrease in all-cause mortality between the two groups, RR 0.77 (95% CI 0.53,1.11). After a sensitivity analysis performed specifically for this outcome, results showed a 32% reduction in all cause mortality in patients given NIV vs. oxygen therapy, however was not statistically significant RR 0.68 (95% CI 0.53-1.11) and was heterogenous I2=50%. There is no difference in the duration of mechanical ventilation between groups. CONCLUSION: In immunocompromised patients with respiratory failure, NIV reduced intubation rates, and length of ICU stay, compared to standard oxygen therapy. This intervention also showed trend toward ICU and all-cause mortality reduction.