Postoperative Cerebral Venous Sinus Thrombosis Following a Retrosigmoid Craniotomy—A Clinical and Radiological Analysis

Postoperative cerebral venous sinus thrombosis (CVST) is a rare complication of the retrosigmoid approach. To address lack literature, we performed retrospective analysis. The thromboses were divided into those demonstrating radiological (rCVST) and clinical (cCVST) features, latter diagnosed during hospitalization. We identified former by contrast in sigmoid (SS) or transverse sinuses (TS), evaluated closest distance from craniotomy to quantify exposure. included 130 patients (males: 52, females: 78) with median age 46.0. They had rCVST 46.9% cases, most often TS (65.6%), cCVST 3.1% cases. Distances not different regarding presence (p = 0.32 p 0.72). SS was 0.13). However, lower exposure correlated incidence 0.009). When surgery on side dominant sinuses, rCVSTs more frequent 0.042). None other examined factors related cCVST. Surgery sinus, exposing them, seems be rCVST. Further prospective studies are needed identify risk determine best management.