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Critical Care
Published in: Critical Care 4/2005

Open Access 01-08-2005 | Research

Pneumothorax and mortality in the mechanically ventilated SARS patients: a prospective clinical study

Authors: Hsin-Kuo Kao, Jia-Horng Wang, Chun-Sung Sung, Ying-Che Huang, Te-Cheng Lien

Published in: Critical Care | Issue 4/2005

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Abstract

Introduction

Pneumothorax often complicates the management of mechanically ventilated severe acute respiratory syndrome (SARS) patients in the isolation intensive care unit (ICU). We sought to determine whether pneumothoraces are induced by high ventilatory pressure or volume and if they are associated with mortality in mechanically ventilated SARS patients.

Methods

We conducted a prospective, clinical study. Forty-one mechanically ventilated SARS patients were included in our study. All SARS patients were sedated and received mechanical ventilation in the isolation ICU.

Results

The mechanically ventilated SARS patients were divided into two groups either with or without pneumothorax. Their demographic data, clinical characteristics, ventilatory variables such as positive end-expiratory pressure, peak inspiratory pressure, mean airway pressure, tidal volume, tidal volume per kilogram, respiratory rate and minute ventilation and the accumulated mortality rate at 30 days after mechanical ventilation were analyzed. There were no statistically significant differences in the pressures and volumes between the two groups, and the mortality was also similar between the groups. However, patients developing pneumothorax during mechanical ventilation frequently expressed higher respiratory rates on admission, and a lower PaO2/FiO2 ratio and higher PaCO2 level during hospitalization compared with those without pneumothorax.

Conclusion

In our study, the SARS patients who suffered pneumothorax presented as more tachypnic on admission, and more pronounced hypoxemic and hypercapnic during hospitalization. These variables signaled a deterioration in respiratory function and could be indicators of developing pneumothorax during mechanical ventilation in the SARS patients. Meanwhile, meticulous respiratory therapy and monitoring were mandatory in these patients.
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Metadata
Title
Pneumothorax and mortality in the mechanically ventilated SARS patients: a prospective clinical study
Authors
Hsin-Kuo Kao
Jia-Horng Wang
Chun-Sung Sung
Ying-Che Huang
Te-Cheng Lien
Publication date
01-08-2005
Publisher
BioMed Central
Published in
Critical Care / Issue 4/2005
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/cc3736

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