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The efficacy and safety of prone positioning in adults patients with acute respiratory distress syndrome: a meta-analysis of randomized controlled trials

 So Young Park  ;  Hyun Jung Kim  ;  Kwan Ha Yoo  ;  Yong Bum Park  ;  Seo Woo Kim  ;  Seok Jeong Lee  ;  Eun Kyung Kim  ;  Jung Hyun Kim  ;  Yee Hyung Kim  ;  Ji-yong Moon  ;  Kyung Hoon Min  ;  Sung Soo Park  ;  Jinwoo Lee  ;  Chang-Hoon Lee  ;  Jinkyeong Park  ;  Min Kwang Byun  ;  Sei Won Lee  ;  ChinKook Rlee  ;  Ji Ye Jung  ;  Yun Su Sim 
 JOURNAL OF THORACIC DISEASE, Vol.7(3) : 356-367, 2015 
Journal Title
Issue Date
Prone positioning ; acute respiratory distress syndrome (ARDS) ; mortality
BACKGROUND: Prone positioning for acute respiratory distress syndrome (ARDS) has no impact on mortality despite significant improvements in oxygenation. However, a recent trial demonstrated reduced mortality rates in the prone position for severe ARDS. We evaluated effects of prone position duration and protective lung strategies on mortality rates in ARDS. METHODS: We extensively searched MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials to identify randomized controlled trials (RCTs) reporting on prone positioning during acute respiratory failure in adults for inclusion in our meta-analysis. RESULTS: Eight trials met our inclusion criteria, Totals of 1,099 and 1,042 patients were randomized to the prone and supine ventilation positions. The mortality rates associated with the prone and supine positions were 41% and 47% [risk ratio (RR), 0.90; 95% confidence interval (CI), 0.82-0.98, P=0.02], but the heterogeneity was moderate (P=0.01, I(2)=61%). In a subgroup analysis, the mortality rates for lung protective ventilation (RR 0.73, 95% CI, 0.62-0.86, P=0.0002) and duration of prone positioning >12 h (RR 0.75, 95% CI, 0.65-0.87, P<0.0001) were reduced in the prone position. Prone positioning was not associated with an increased incidence of cardiac events (RR 1.01, 95% CI, 0.87-1.17) or ventilator associated pneumonia (RR 0.88, 95% CI, 0.71-1.09), but it was associated with an increased incidence of pressure sores (RR 1.23, 95% CI, 1.07-1.41) and endotracheal dislocation (RR 1.33, 95% CI, 1.02-1.74). CONCLUSIONS: Prone positioning tends to reduce the mortality rates in ARDS patients, especially when used in conjunction with a lung protective strategy and longer prone position durations. Prone positioning for ARDS patients should be prioritized over other invasive procedures because related life-threatening complications are rare. However, further additional randomized controlled design to study are required for confirm benefit of prone position in ARDS.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Byun, Min Kwang(변민광) ORCID logo https://orcid.org/0000-0003-1525-1745
Jung, Ji Ye(정지예) ORCID logo https://orcid.org/0000-0003-1589-4142
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