A case of single-incision laparoscopic surgery for acute appendicitis with left ventricular assist device.

A left ventricular assist device (LVAD) is used for patients with severe heart failure. We present a case of a 35-year-old man who had undergone LVAD implantation 2 years ago for dilated phase of hypertrophic cardiomyopathy. He had right lower abdominal pain and was diagnosed with acute appendicitis. Single-incision laparoscopic surgery for appendicitis was performed. We incised approximately 3 cm of the umbilicus carefully because the driveline of LVAD was passing just caudal to the umbilicus. LVAD is only available for patients waiting for cardiac transplantation in Japan, and the number of patients with LVAD has been increasing. Adequate anticoagulant therapy is necessary because device thrombosis often causes fatal complications, but during emergency cases, the surgeons have to be cautious of bleeding and injury to the driveline of LVAD.