Bleeding, Cardio- and Cerebrovascular Complications in Head and Neck Surgery

In this retrospective registry trial, the investigators sought to assess the incidence and predictors of cardiovascular and cerebrovascular complications as well as their derivatives (acute coronary syndrome, decompensated heart failure, an episode of atrial fibrillation requiring cardiologist consultation, stroke, pulmonary embolism and venous thromboembolism) in cohort of patients undergoing head and neck surgery.