It should be understood that head and neck surgery encompasses a broad range of procedures from brief endoscopic outpatient procedures to complex tumor resections with reconstruction lasting 10–12 h or more. Although the 2007 AHA/ACC Guidelines on Perioperative Cardiovascular Evaluation classify head and neck surgery as “intermediate risk” with an expected cardiac complication rate of 1–5%, the risk of perioperative medical complications in this diverse group of patients cannot be described as uniform. Risk assessment in otolaryngology patients (like all surgical patients) requires an understanding of both the risk posed by existing physiologic derangements (heart disease, renal failure, diabetes, etc.) and the risk inherent in the procedure to be performed.
KeywordsObstructive Sleep Apnea Neck Dissection Recurrent Laryngeal Nerve Estimate Blood Loss Parathyroid Adenoma
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