“…16 Otolaryngologists have examined this issue in other fields, such as endoscopic sinus surgery, tonsillectomy, uncomplicated neck dissection, and otologic surgery, with findings that routine postoperative antibiotic use is not supported despite these surgeries also being in the clean-contaminated category. 1,[38][39][40] In addition, for clean-contaminated neurosurgical procedures, antimicrobial prophylaxis demonstrated no difference in postoperative meningitis and infection rate. 41,42 However, the American Society of Health System Pharmacists recommends 1 g of single-dose cefazolin within 60 minutes before skin incision for patients undergoing clean neurosurgical procedures or CSF-shunting procedures, without recommendations for clean-contaminated procedures.…”