title: Effect of body mass index on early clinical outcomes after cardiac surgery.
abstract: BACKGROUND
  there are several reports on the outcomes of cardiac surgery in relation to body mass index. Some concluded that obesity did not increase morbidity or mortality after cardiac surgery, whereas others demonstrated that obesity was a predictor of both morbidity and mortality.
  
  
  METHODS
  this was a retrospective study of 3370 adult patients undergoing cardiac surgery. The patients were divided into 4 groups according to body mass index. The 4 groups were compared in terms of preoperative, operative, and postoperative characteristics.
  
  
  RESULTS
  obese patients had a significantly younger mean age. Diabetes, hypertension, and hyperlipidemia were significantly more common in obese patients. The crossclamp time was significantly longer in the underweight group. Reoperation for bleeding, and pulmonary, gastrointestinal, and renal complications were significantly more common in the underweight group. Wound complications were significantly more frequent in the obese group. Mortality was inversely proportional to body mass index. The adjusted odds ratios of the early clinical outcomes demonstrated a higher risk of wound complications in overweight and obese patients
  
  
  CONCLUSIONS
  body mass index has no effect on early clinical outcomes after cardiac surgery, except for a higher risk of wound complications in overweight and obese patients.
authors.affiliation: Department of Cardiothoracic Surgery, Faculty of Medicine, Menoufia University, Egypt Department of Cardiothoracic Surgery, Faculty of Medicine, Taibah University, Kingdom of Saudi Arabia amrallama2005@yahoo.com.
authors.forename: Amr
authors.initials: A
authors.lastname: Allama
authors.affiliation: Department of Cardiothoracic Surgery, Faculty of Medicine, Menoufia University, Egypt.
authors.forename: Islam
authors.initials: I
authors.lastname: Ibrahim
authors.affiliation: Department of Public Health and Community Medicine, National Liver Institute, Menoufia University, Egypt.
authors.forename: Ayat
authors.initials: A
authors.lastname: Abdallah
authors.affiliation: Department of Cardiac Surgery, Morriston Hospital, Swansea, UK.
authors.forename: Saeed
authors.initials: S
authors.lastname: Ashraf
authors.affiliation: Department of Cardiac Surgery, Morriston Hospital, Swansea, UK.
authors.forename: Aprim
authors.initials: A
authors.lastname: Youhana
authors.affiliation: Department of Cardiac Surgery, Morriston Hospital, Swansea, UK.
authors.forename: Pankaj
authors.initials: P
authors.lastname: Kumar
authors.affiliation: Department of Cardiac Surgery, Morriston Hospital, Swansea, UK.
authors.forename: Farah
authors.initials: F
authors.lastname: Bhatti
authors.affiliation: Department of Cardiac Surgery, Morriston Hospital, Swansea, UK.
authors.forename: Afzal
authors.initials: A
authors.lastname: Zaidi
mesh_terms: D000367:Age Factors; D000368:Aged; D015992:Body Mass Index; D006348:Cardiac Surgical Procedures / Q000009:adverse effects / Q000401:mortality; D016009:Chi-Square Distribution; D005260:Female; D006331:Heart Diseases / Q000150:complications / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009765:Obesity / Q000150:complications* / Q000175:diagnosis / Q000401:mortality; D016017:Odds Ratio; D061646:Operative Time; D011183:Postoperative Complications / Q000401:mortality / Q000601:surgery; D012086:Reoperation; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome; D014945:Wound Healing
keywords: Body mass index; Coronary artery bypass; Heart valve diseases; Obesity; Postoperative complications; Risk factors; Thinness