[Epidemiological investigation on acute respiratory distress syndrome occurring in intensive care units in Beijing from 1998 to 2003]

Qing-gang Ge, Xi Zhu, Gai-qi Yao, Chao Wang, Cheng-hong Yin, Jing-qiao Lü, Shu-wen Zhang
Zhongguo Wei Zhong Bing Ji Jiu Yi Xue, Chinese Critical Care Medicine, Zhongguo Weizhongbing Jijiuyixue 2007, 19 (4): 201-4

OBJECTIVE: To investigate incidence, causes and mortality of acute respiratory distress syndrome (ARDS) in intensive care units (ICU) in Beijing.

METHODS: Patients in ICU of eight general hospitals in Beijing from May 1998 to April 2003 were retrospectively studied. ARDS was diagnosed according to the 1994 American-European consensus conference criteria. Results Of 8 482 patients admitted to ICUs in the same period, there were 383 patients (4.5%) diagnosed as having ARDS. Major primary diseases for ARDS were sepsis (21.7%), pneumonia (16.2%), surgical operation (13.1%), acute pancreatitis (12.8%) and multiple severe trauma (10.7%). The mean interval between onset of the primary disease and onset of ARDS was (61.8 +/- 43.7) hours. The overall mortality of ARDS was 52.0%, the mortality adjusted for age (< or =39, 40-64, > or =65 years old) and gender (male) showed significant changes in each year (all P<0.05), but acute physiology and chronic health evaluation II (APACHE II, < or =12, 13-19, > or =20 scores) score showed no significant changes during the 5 years. Septic shock (36.2%) and heart failure (20.6%) were major lethal causes, while only 14.6% died of respiratory failure.

CONCLUSION: ARDS was frequent in ICU in Beijing, the mortality remains high, and there is no tendency to decline in recent years.

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