title: [Obesity is a risk factor of young onset of acute aortic dissection and postoperative hypoxemia].
abstract: We reviewed the effect of obesity in the repair of type A acute aortic dissection (AAD). Between January, 2009 and June, 2010, repair of type A AAD was performed in 51 patients. We divided these patients into 2 groups according to body mass index( BMI). Twenty-two patients whose BMI was≥25 were classified as group O, and 29 patients whose BMI was<25 were classified as group N. The mean age of group O was younger than that in group N(60.2±11.9 versus 68.3±10.2 years, p=0.01). The incidence of postoperative hypoxemia was greater in group O than that in group N(81.8% versus 53.6 %, p=0.036). The intubation period was longer in group O than that in group N(8.0±7.1 days versus 3.7±3.1 days, p=0.014), and the intensive care unit (ICU) stay was longer in group O than that in group N(13.7±8.8 days versus 9.3±5.9 days, p=0.04). Obesity is thought to be a risk of young-onset of AAD and postoperative hypoxemia, as well as a prolonged intubation period and ICU stay.
authors.affiliation: Department of Cardiovascular Surgery, Jichi Medical University, Shimotsuke, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Aizawa
authors.forename: Yasuhito
authors.initials: Y
authors.lastname: Sakano
authors.forename: Shinichi
authors.initials: S
authors.lastname: Ohki
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Saito
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Konishi
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Misawa
mesh_terms: D000208:Acute Disease; D017668:Age of Onset; D000784:Aortic Dissection / Q000601:surgery*; D001014:Aortic Aneurysm / Q000601:surgery*; D005260:Female; D006801:Humans; D000860:Hypoxia / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D011183:Postoperative Complications; D012307:Risk Factors