Volume 70, Issue 8 , Pages 318-323, August 2007
Risk Factor Analysis of Acute Respiratory Distress Syndrome Among Hospitalized Patients with Chlamydophila pneumoniae Pneumonia
Article Outline
Background
Chlamydophila pneumoniae (C. pneumoniae) pneumonia-associated acute respiratory distress syndrome (ARDS) is rare and has been seldom reported, but the outcome is usually fatal. This study was designed to identify the risk factors for hospitalized C. pneumoniae patients developing ARDS and to describe the outcomes.
Methods
A retrospective study was performed to evaluate hospitalized patients over 18 years old diagnosed with C. pneumoniae pneumonia in a tertiary medical center.
Results
Eleven patients who fulfilled the diagnostic criteria were included in this study. ARDS developed in 6 of 11 patients and mostly within 7 days of admission. Five of 6 patients needed to be transferred to the intensive care unit, and all of these patients died. The patients who developed ARDS had higher initial Acute Physiology and Chronic Health Evaluation II scores and CURB-65 (confusion, urea, respiratory rate, blood pressure, age) scores. The risk factors for developing ARDS included age ≥ 75 years, comorbid disease such as congestive heart failure, diabetes or liver cirrhosis, APACHE II score ≥ 12, CURB-65 score ≥ 2, white blood cell count > 12,000/mm3 or < 4,000/mm3, serum creatinine ≥ 1.4 mg/dL, and bilateral or multilobar involvement.
Conclusion
C. pneumoniae associated with ARDS has a higher mortality, and several risk factors, such as older age, underlying comorbidity and bilateral or multilobar involvement, should be identified earlier.
Key words: acute respiratory distress syndrome , Chlamydophila pneumoniae , mortality , pneumonia , risk factors
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References
- . Chlamydia pneumoniae pneumonia . Semin Respir Crit Care Med . 2000;21:285–294
- Incidence of community-acquired pneumonia and Chlamydia pneumoniae infection: a prospective multicen-tre study . Eur Respir J . 1993;6:14–18
- . Community-acquired Chlamydia pneumoniae pneumonia . Thorax . 1996;51:967
- Severe community-acquired pneumonia: a possible role for Chlamydia pneumoniae . Respiration . 1996;63:61–65
- . Chlamydia pneumoniae infection in community-acquired pneumonia in Taiwan . J Microbiol Immunol Infect . 2000;33:34–38
- . A 22-year-old woman with fulminant Chlamydia pneumoniae pneumonia . Fukushima J Med Sci . 2002;48:57–62
- . A case of severe Chlamydia pneumoniae pneumonia requiring mechanical ventilation and complicated with disseminated intravascular coagulation . Nihon Kokyuki Gakkai Zasshi . 2003;41:840–845 [In Japanese]
- Severe case of Chlamydia pneu-moniae pneumonia . Nippon Naika Gakkai Zasshi . 2003;92:2025–2028 [In Japanese]
- . Severe community-acquired pneumonia with acute hypoxemic respiratory failure due to primary infection with Chlamydia pneu-moniae in a previously healthy adult . Clin Infect Dis . 2003;36:e155–e157
- . Clinical presentation of community-acquired Chlamydia pneumoniae pneumonia in adults . Chest . 2002;121:1776–1781
- . The etiology of community-acquired pneumonia among hospitalized patients during a Chlamydia pneumoniae epidemic in Finland . J Infect Dis . 1995;172:1330–1335
- . Clinical characteristics of Chlamydia pneumoniae infection as the sole cause of community-acquired pneumonia . Clin Infect Dis . 1999;29:426–428
- Standardizing Chlamydia pneumoniae assays: recommendations from the Centers for Disease Control and Prevention (USA) and the Laboratory Centre for Disease Control (Canada) . Clin Infect Dis . 2001;33:492–503
- Defining community acquired pneumonia severity on presentation to hospital: an international derivation and validation study . Thorax . 2003;58:377–382
- The American-European Consensus Conference on ARDS. Definitions, mechanisms, relevant outcomes, and clinical trial coordination . Am J Respir Crit Care Med . 1994;149:818–824
- . Chlamydia pneumoniae (TWAR) . Clin Microbiol Rev . 1995;8:451–461
- . Serological study on Chlamydophila pneumoniae in patients with community-acquired pneumonia . New Microbiol . 2004;27:335–343
- . Pneumonia due to Chlamydia pneu-moniae: prevalence, clinical features, diagnosis, and treatment . Clin Infect Dis . 1995;21:244–252
- . Validation of a predictive rule for the management of community-acquired pneumonia . Eur Respir J . 2006;27:151–157
PII: S1726-4901(08)70012-1
doi:10.1016/S1726-4901(08)70012-1
© 2007 Elsevier. Published by Elsevier Inc. All rights reserved.
Volume 70, Issue 8 , Pages 318-323, August 2007
