Postoperative Hypoxia in Obese Patients following Coronary Artery Bypass Grafting.

VernacularTitle:肥満患者とＣＡＢＧ後低酸素血症に関する検討
Author: Kazuhiro Kochi ; Kazuhiro Yamazaki ; Osamu Ishii ; Tatsuhiko Komiya ; Tomohiro Nakamura ; Yoshio Kanzaki
Publication Type:Journal Article
From:Japanese Journal of Cardiovascular Surgery 1997;26(2):83-86
CountryJapan
Language:Japanese
Abstract: Postoperative hypoxia in 53 consecutively treat patients who underwent coronary artery bypass grafting (CABG) and who were weaned from mechanical ventilation were studied. The 29 patients who required high concentration oxygen (more than 70% H-group) were compared with the 24 patients who required lower concentration oxygen (less than 70% L-group). The preoperative body mass index (BMI) was significantly higher in the H-group (25.6±3.5) than the L-group (23.3±2.8). (p=0.012). Respiratory index (RI) decreased after extracorporeal circulation in all patients. The RI of the H-group during a stay in intensive care unit was significantly lower than that in the L-group. The RI in obese patients (BMI≥26.5) showed a significant reduction. Late deaths were seen in 3 obese patients in the H-group. These data suggested that careful postoperative respiratory managements is necessary in obese patients.