Predictors of mortality among intensive care unit patients coinfected with tuberculosis and HIV

J Bras Pneumol. 2018 Apr;44(2):118-124. doi: 10.1590/s1806-37562017000000316.
[Article in Portuguese, English]

Abstract

Objective: To identify factors predictive of mortality in patients admitted to the ICU with tuberculosis (TB)/HIV coinfection in the Manaus, Amazon Region.

Methods: This was a retrospective cohort study of TB/HIV coinfected patients over 18 years of age who were admitted to an ICU in the city of Manaus, Brazil, between January of 2011 and December of 2014. Sociodemographic, clinical, and laboratory variables were assessed. To identify factors predictive of mortality, we employed a Cox proportional hazards model.

Results: During the study period, 120 patients with TB/HIV coinfection were admitted to the ICU. The mean age was 37.0 ± 11.7 years. Of the 120 patients evaluated, 94 (78.3%) died and 62 (66.0%) of those deaths having occurred within the first week after admission. Data on invasive mechanical ventilation (IMV) and ARDS were available for 86 and 67 patients, respectively Of those 86, 75 (87.2%) underwent IMV, and, of those 67, 48 (71.6%) presented with ARDS. The factors found to be independently associated with mortality were IMV (p = 0.002), hypoalbuminemia (p = 0.013), and CD4 count < 200 cells/mm3 (p = 0.002).

Conclusions: A high early mortality rate was observed among TB/HIV coinfected ICU patients. The factors predictive of mortality in this population were IMV, hypoalbuminemia, and severe immunosuppression.

Objetivo:: Identificar fatores preditores de mortalidade em pacientes da UTI coinfectados por tuberculose (TB)/HIV em Manaus (AM).

Métodos:: Estudo retrospectivo de coorte com pacientes coinfectados por TB/HIV, com mais de 18 anos de idade e admitidos na UTI entre janeiro de 2011 e dezembro de 2014. Foram avaliadas variáveis sociodemográficas, clínicas e laboratoriais. Para identificar fatores preditores de mortalidade, foi empregado um modelo de riscos proporcionais de Cox.

Resultados:: Durante o período estudado, 120 pacientes com coinfecção por TB/HIV foram admitidos na UTI. A média de idade foi de 37,0 ± 11,7 anos. Dos 120 pacientes avaliados, 94 (78,3%) morreram; dos 94 óbitos, 62 (66,0%) ocorreram na primeira semana após a admissão. Havia dados sobre ventilação mecânica invasiva (VMI) e SARA referentes a 86 e 67 pacientes, respectivamente. Dos 86, 75 (87,2%) foram submetidos a VMI, e, dos 67, 48 (71,6%) apresentaram SARA. Os fatores que se relacionaram independentemente com a mortalidade foram VMI (p = 0,002), hipoalbuminemia (p = 0,013) e contagem de CD4 < 200 células/mm3 (p = 0,002).

Conclusões:: Elevada mortalidade precoce foi observada em pacientes com coinfecção por TB/HIV admitidos na UTI. Os fatores preditores de mortalidade nessa população foram VMI, hipoalbuminemia e imunodepressão grave.

MeSH terms

  • Adult
  • Brazil / epidemiology
  • Coinfection / mortality*
  • Female
  • HIV Infections / mortality*
  • Hospital Mortality*
  • Humans
  • Hypoalbuminemia / mortality
  • Immunocompetence
  • Intensive Care Units / statistics & numerical data*
  • Kaplan-Meier Estimate
  • Male
  • Middle Aged
  • Respiration, Artificial / adverse effects
  • Respiration, Artificial / mortality
  • Retrospective Studies
  • Risk Factors
  • Severity of Illness Index
  • Substance-Related Disorders / mortality
  • Time Factors
  • Tuberculosis / mortality*
  • Young Adult