• Teresa Somma, Alberto Enrico Maraolo, Felice Esposito, Luigi Maria Cavallo, Grazia Tosone, Raffaele Orlando, and Paolo Cappabianca.
• Department of Neurosciences, Reproductive and Odontostomatological Sciences, Division of Neurosurgery - Università degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Napoli, Italy.
• Clin Neurol Neurosurg. 2015 Dec 1; 139: 206-9.

ObjectivesThe study aims to evaluate the incidence of infectious complications (namely meningitis) within 30 days after endoscopic endonasal transspheinodal neurosurgery (EETS) in patients receiving an ultra-short peri-operative chemo-prophylaxis regimen with 2 doses of 1st generation cephalosporin or macrolide.Patients And MethodsWe retrospectively analyzed the clinical records of 145 patients who received an ultra-short chemoprophylaxis with two doses of an antibiotic, given 30 min before and 8h after EETS, over a 30-month time-frame. Ninety-seven patients (66.89%) received endovenous cefazolin, a 1st generation cephalosporin, administered at a dosage of 1000 mg, and 48 patients (33.10%) with an history of allergy to various agents, received endovenous clarithromycin at a dosage of 500 mg.ResultsNo case of peri- and post-operative meningitis occurred in patients receiving the 2 doses of antibiotic. Only one patient (0.68%) developed cerebral fluid leakage on the 7th postoperative day, which required the switching to a broad-spectrum antibiotic prophylaxis for one week; this patient received the ultrashort prophylaxis with a macrolide. In addition, 7 patients (4.82%) developed minor infectious complications such as low-grade fever (3 cases, all of them receiving cefazolin), enlarged submandibular and cervical lymphnodes (3 cases, all of them receiving cefazolin), and upper and lower respiratory tract infection (1 case receiving clarithromycin). The cost of this prophylaxis regimen ranged from 7.76 Euro (cefazolin) to 39.54 Euro (clarithromycin).ConclusionsThis study suggested that an ultra-short single-antibiotic prophylaxis is a safe, cheap and effective regimen to prevent post-operative meningitis in patients undergoing EETS and who do not require lumbar drainage after surgery. In these patients also the rate of minor infective complications was acceptable when compared with the previous more expensive regimen based on 3rd generation cephalosporin plus aminoglycoside or alone, that could be suitable only for at-risk patients (e.g. smokers, cerebrospinal leak or Cushing's diseases).Copyright © 2015 Elsevier B.V. All rights reserved.

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