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Background: Traumatic carotid cavernous fistula (TCCF) is a rare vascular complication of traumatic brain and facial injury. The purpose of this study was to analyze the incidence of this disorder in different types of basilar skull fracture, determine whether particular clinical factors impacted outcomes, and discuss ways of improving prognosis., Method: We performed a retrospective analysis of cases with basilar skull fracture or angiography-confirmed TCCF in inpatients between 1999 and 2005, as well as an analysis of the incidence rate of TCCF in each type of basilar skull fracture. For patients diagnosed with TCCF, cases were divided into "disability" and "no disability" groups, and related clinical factors with potential impact on prognosis were analyzed., Results: In 312 inpatients with basilar skull fractures, an overall incidence of 3.8% for TCCF was observed, and the incidence of this disorder with anterior fossa fracture, middle fossa fracture, and posterior fossa fracture was 2.4%, 8.3%, and 1.7%, respectively. In this retrospective analysis, factors such as patients' age, gender, number of embolization procedures performed, and time from injury to first symptom onset did not significantly affect outcome (p > 0.05). However, the time from first symptom onset to endovascular embolization differed significantly between the disability and no disability groups (p < 0.05)., Conclusions: A relatively high incidence of TCCF occurred in patients with middle fossa fractures, especially those with transverse or oblique fractures. Prompt diagnosis and intervention should be emphasized in the management of patients with TCCF, and noninvasive techniques for early detection of TCCF should be considered in cases of middle fossa fractures under certain conditions after brain or facial trauma to ensure positive outcomes.