Effect of body mass index on early clinical outcomes after cardiac surgery

• Published in: Asian cardiovascular & thoracic annals Vol. 22; no. 6; pp. 667 - 673
• Main Authors: Allama, Amr, Ibrahim, Islam, Abdallah, Ayat, Ashraf, Saeed, Youhana, Aprim, Kumar, Pankaj, Bhatti, Farah, Zaidi, Afzal
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.07.2014
• Subjects: Age Factors; Aged; Body Mass Index; Cardiac Surgical Procedures - adverse effects; Cardiac Surgical Procedures - mortality; Chi-Square Distribution; Female; Heart Diseases - complications; Heart Diseases - diagnosis; Heart Diseases - mortality; Heart Diseases - surgery; Humans; Logistic Models; Male; Middle Aged; Multivariate Analysis; Obesity - complications; Obesity - diagnosis; Obesity - mortality; Odds Ratio; Operative Time; Postoperative Complications - mortality; Postoperative Complications - surgery; Reoperation; Retrospective Studies; Risk Assessment; Risk Factors; Time Factors; Treatment Outcome; Wound Healing; Body mass index; Heart valve diseases; Obesity; Coronary artery bypass; Thinness; Postoperative complications; Risk factors
• ISSN: 0218-4923; 1816-5370
• DOI: 10.1177/0218492313504092

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 Conclusion 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.