Aortic valve surgery for native valve endocarditis in extreme obesity

Abstract

Abstract Surgical aortic valve replacement represents a class one indication in the setting of aortic valve endocarditis and decompensated heart failure secondary to aortic regurgitation as per the European Society of Cardiology. However, extreme obesity, whereby the body mass index (BMI) >40 kg/m2, represents a challenging cohort of patients. Performing cardiac surgery in the bariatric population is fraught with challenges pertaining to intraoperative issues of surgical access and approach. We describe the case of a 45-year-old gentleman who had previous been diagnosed with infective endocarditis of the aortic valve and with a BMI of 68.2 (228 kg). Surgical aortic valve replacement in extreme obesity is associated with deep sternal wound infection, requirement and duration of mechanical ventilation, atrial fibrillation and renal failure. The ‘obesity paradox’ of overweight and class I obesity (BMI <35) has demonstrated favourable long-term results compared with underweight patients or even those with normal BMI undergoing cardiac surgery.