Abstract

Abstract BACKGROUND Surgical site infection(SSI) in neurosurgery can increase mortality and worsen functional outcome. There are few reports on risk factors for SSI in glioma surgery. In this study, we investigated the risk factors for SSI in glioma surgery at our institution. METHODS We included 1013 patients with gliomas who underwent craniotomy between November 2013 and March 2022 at our institution. SSI was defined as requiring surgical treatment. Various factors including age, gender, number of operations, prior radiology, prior chemotherapy, use of intraoperative MRI, operation time, tumor WHO grade were investigated. RESULTS Among 1013 craniotomies, 31 (3.06%) cases of SSI required surgical procedure. In univariate analysis, the most significant factors were multiple prior craniotomy (p = 0.0067) and prior radiation therapy ( p = 0.0286). Among these factors, multivariate analysis revealed the number of surgeries ( p = 0.0151) as a significant independent factor for infection.Discussion and CONCLUSION Patients with gliomas often requires multiple craniotomy due to tumor recurrence. Although there have been reported the reoperation is an independent risk factor for postoperative infection, the is the first time that a specific number of prior surgeries ( 2 or more) has been reported. Radiotherapy is said to cause skin damage at a threshold of 10 Gy or less. Since radiation therapy for gliomas is given a dose of 50 Gy or more and irradiated scalp causes radiation dermatitis, and patients who have undergone prior radiotherapy must be carefully monitored.

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