An obesity paradox of Asian body mass index after cardiac surgery: arterial oxygenations in duration of mechanic ventilation.

Background: Numerous studies have documented an obesity paradox that overweight of Caucasian patients has better prognosis after cardiac surgery. This study is to examine Asian patients' BMI to see whether an obesity paradox exists in DMV after cardiac surgery.

Methods: A retrospective study consisted of 428 patients after cardiac surgery from January 2006 to December 2010 in the medical center of Taiwan.