“…The management and prevention of WI are real issues in perioperative care in head and neck cancer surgery. Because WI have been found to occur in up to 15% of patients despite antibiotic prophylaxis in all recent prospective studies [1,2,4,5,6,8,9,10,11,12,17,18,19,22,23,25,27,28,31,33,34], we must consider that major head and neck cancer surgery with opening of the upper aerodigestive tract is contaminated or dirty surgery [7]. Postoperative WI tend to be polymicrobial with mixed aerobic and anaerobic flora [3,9,13].…”