Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patients

Abstract Background The prevalence of pneumocystis pneumonia (PCP) and associated hypoxic respiratory failure is increasing in human immunodeficiency virus (HIV)-negative patients. However, no prior studies have evaluated the effect of early anti-PCP treatment on clinical outcomes in HIV-negative pa...

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Main Authors: Ryoung-Eun Ko, Soo Jin Na, Kyungmin Huh, Gee Young Suh, Kyeongman Jeon
Format: Article
Language:English
Published: BMC 2019-09-01
Series:Respiratory Research
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12931-019-1188-6
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author Ryoung-Eun Ko
Soo Jin Na
Kyungmin Huh
Gee Young Suh
Kyeongman Jeon
author_facet Ryoung-Eun Ko
Soo Jin Na
Kyungmin Huh
Gee Young Suh
Kyeongman Jeon
author_sort Ryoung-Eun Ko
collection DOAJ
description Abstract Background The prevalence of pneumocystis pneumonia (PCP) and associated hypoxic respiratory failure is increasing in human immunodeficiency virus (HIV)-negative patients. However, no prior studies have evaluated the effect of early anti-PCP treatment on clinical outcomes in HIV-negative patient with severe PCP. Therefore, this study investigated the association between the time to anti-PCP treatment and the clinical outcomes in HIV-negative patients with PCP who presented with hypoxemic respiratory failure. Methods A retrospective observational study was performed involving 51 HIV-negative patients with PCP who presented in respiratory failure and were admitted to the intensive care unit between October 2005 and July 2018. A logistic regression model was used to adjust for potential confounding factors in the association between the time to anti-PCP treatment and in-hospital mortality. Results All patients were treated with appropriate anti-PCP treatment, primarily involving trimethoprim/sulfamethoxazole. The median time to anti-PCP treatment was 58.0 (28.0–97.8) hours. Thirty-one (60.8%) patients were treated empirically prior to confirmation of the microbiological diagnosis. However, the hospital mortality rates were not associated with increasing quartiles of time until anti-PCP treatment (P = 0.818, test for trend). In addition, hospital mortality of patients received early empiric treatment was not better than those of patients received definitive treatment after microbiologic diagnosis (48.4% vs. 40.0%, P = 0.765). In a multiple logistic regression model, the time to anti-PCP treatment was not associated with increased mortality. However, age (adjusted OR 1.07, 95% CI 1.01–1.14) and failure to initial treatment (adjusted OR 13.03, 95% CI 2.34–72.65) were independently associated with increased mortality. Conclusions There was no association between the time to anti-PCP treatment and treatment outcomes in HIV-negative patients with PCP who presented in hypoxemic respiratory failure.
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spelling doaj.art-1014292aecd047eb9593ded429c1deb52022-12-22T00:27:53ZengBMCRespiratory Research1465-993X2019-09-0120111010.1186/s12931-019-1188-6Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patientsRyoung-Eun Ko0Soo Jin Na1Kyungmin Huh2Gee Young Suh3Kyeongman Jeon4Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineDivision of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineAbstract Background The prevalence of pneumocystis pneumonia (PCP) and associated hypoxic respiratory failure is increasing in human immunodeficiency virus (HIV)-negative patients. However, no prior studies have evaluated the effect of early anti-PCP treatment on clinical outcomes in HIV-negative patient with severe PCP. Therefore, this study investigated the association between the time to anti-PCP treatment and the clinical outcomes in HIV-negative patients with PCP who presented with hypoxemic respiratory failure. Methods A retrospective observational study was performed involving 51 HIV-negative patients with PCP who presented in respiratory failure and were admitted to the intensive care unit between October 2005 and July 2018. A logistic regression model was used to adjust for potential confounding factors in the association between the time to anti-PCP treatment and in-hospital mortality. Results All patients were treated with appropriate anti-PCP treatment, primarily involving trimethoprim/sulfamethoxazole. The median time to anti-PCP treatment was 58.0 (28.0–97.8) hours. Thirty-one (60.8%) patients were treated empirically prior to confirmation of the microbiological diagnosis. However, the hospital mortality rates were not associated with increasing quartiles of time until anti-PCP treatment (P = 0.818, test for trend). In addition, hospital mortality of patients received early empiric treatment was not better than those of patients received definitive treatment after microbiologic diagnosis (48.4% vs. 40.0%, P = 0.765). In a multiple logistic regression model, the time to anti-PCP treatment was not associated with increased mortality. However, age (adjusted OR 1.07, 95% CI 1.01–1.14) and failure to initial treatment (adjusted OR 13.03, 95% CI 2.34–72.65) were independently associated with increased mortality. Conclusions There was no association between the time to anti-PCP treatment and treatment outcomes in HIV-negative patients with PCP who presented in hypoxemic respiratory failure.http://link.springer.com/article/10.1186/s12931-019-1188-6Pneumocystis pneumoniaHIV seronegativityRespiratory insufficiencyTime-to-treatmentTreatment outcome
spellingShingle Ryoung-Eun Ko
Soo Jin Na
Kyungmin Huh
Gee Young Suh
Kyeongman Jeon
Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patients
Respiratory Research
Pneumocystis pneumonia
HIV seronegativity
Respiratory insufficiency
Time-to-treatment
Treatment outcome
title Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patients
title_full Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patients
title_fullStr Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patients
title_full_unstemmed Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patients
title_short Association of time-to-treatment with outcomes of Pneumocystis pneumonia with respiratory failure in HIV-negative patients
title_sort association of time to treatment with outcomes of pneumocystis pneumonia with respiratory failure in hiv negative patients
topic Pneumocystis pneumonia
HIV seronegativity
Respiratory insufficiency
Time-to-treatment
Treatment outcome
url http://link.springer.com/article/10.1186/s12931-019-1188-6
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