Time to clinical stability in patients hospitalized with community-acquired pneumonia: implications for practice guidelines - PubMed (original) (raw)
Multicenter Study
. 1998 May 13;279(18):1452-7.
doi: 10.1001/jama.279.18.1452.
Affiliations
- PMID: 9600479
- DOI: 10.1001/jama.279.18.1452
Multicenter Study
Time to clinical stability in patients hospitalized with community-acquired pneumonia: implications for practice guidelines
E A Halm et al. JAMA. 1998.
Abstract
Context: Many groups have developed guidelines to shorten hospital length of stay in pneumonia in order to decrease costs, but the length of time until a patient hospitalized with pneumonia becomes clinically stable has not been established.
Objective: To describe the time to resolution of abnormalities in vital signs, ability to eat, and mental status in patients with community-acquired pneumonia and assess clinical outcomes after achieving stability.
Design: Prospective, multicenter, observational cohort study.
Setting: Three university and 1 community teaching hospital in Boston, Mass, Pittsburgh, Pa, and Halifax, Nova Scotia.
Patients: Six hundred eighty-six adults hospitalized with community-acquired pneumonia.
Main outcome measures: Time to resolution of vital signs, ability to eat, mental status, hospital length of stay, and admission to an intensive care, coronary care, or telemetry unit.
Results: The median time to stability was 2 days for heart rate (< or =100 beats/min) and systolic blood pressure (> or =90 mm Hg), and 3 days for respiratory rate (< or =24 breaths/min), oxygen saturation (> or =90%), and temperature (< or =37.2 degrees C [99 degrees F]). The median time to overall clinical stability was 3 days for the most lenient definition of stability and 7 days for the most conservative definition. Patients with more severe cases of pneumonia at presentation took longer to reach stability. Once stability was achieved, clinical deterioration requiring intensive care, coronary care, or telemetry monitoring occurred in 1% of cases or fewer. Between 65% to 86% of patients stayed in the hospital more than 1 day after reaching stability, and fewer than 29% to 46% were converted to oral antibiotics within 1 day of stability, depending on the definition of stability.
Conclusions: Our estimates of time to stability in pneumonia and explicit criteria for defining stability can provide an evidence-based estimate of optimal length of stay, and outline a clinically sensible approach to improving the efficiency of inpatient management.
Comment in
- Time to clinical stability for patients with community-acquired pneumonia.
Siegel RE. Siegel RE. JAMA. 1999 Jan 20;281(3):231-2. doi: 10.1001/jama.281.3.231. JAMA. 1999. PMID: 9918475 No abstract available.
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