A retrospective study to analyze treatment of post traumatic cerebro spinal fluid rhinorrhea and role of trans cranial pedicled pericranial repair in present day context

Abstract

: Skull base fractures are a major cause of morbidity and mortality in head injury. Anterior cranial Fossa (ACF) skull base fracture, leading to Cerebro Spinal Fluid (CSF) Rhinorrhea is one of the most commonly encountered presentation in ACF base fractures. The key to successful management of such cases lies in early diagnosis and surgical management before it leads to meningitis and avoidable mortality.To evaluate the cases of post traumatic CSF rhinorrhea and analyze the parameters utilized to guide the management strategies. An attempt was made to come up with guidelines for its management in a tertiary care hospital.This was a retrospective study in which all cases of traumatic CSF Rhinorrhea admitted to Tertiary care hospital were included. Patients were divided into three groups. First group was conservatively managed in which the rhinorrhea and serial imaging findings showed favourable response.In thesecond group patients were subjected to endoscopic repair by the ENT surgeon based on anatomical considerations. The third group included patients who were had failed the trial of conservative management and the site of leak did not favor endoscopic repair.The outcomes in all these groups were analyzed and conclusions drawn.A total of 54 patients were included in the study which was conducted between Jan 2014 to 2020. 24 were successfully managed conservatively,10 were managed with endoscopic repair and 20 were managed by bifrontal craniotomy and pedicled pericranial ACF Base repair. There was one case from the first group who developed CSF leak after one month necessitating ACF base repair. There was no recurrence reportedin the cases managed endoscopically, whereas one case subjected to craniotomy had recurrence requiring lumbar drain placement. With each transcranial surgery there was a refinement in the technique further minimizing complications. We have elaborated on the surgical nuances to ensurebetter outcomes. : Pedicledpericranial flap ACF base repair is an elegant approach which requires an understanding of the mechanism of CSF leak from skull base fractures. This procedure can easily be mastered and when performed correctly provides best results for cases where there are multiple ACF defects, those not accessible by endoscope and also in those cases where imaging is not able to localize the exact site of defect leading to CSF rhinorrhea. Anosmia is an in evitable complication of this procedure. However, the trade off between mortality resulting from meningitis versus anosmia makes it a viable and attractive treatment option.