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  • Title: Early Displacement of Reconstruction Material is a Predictor of Cerebrospinal Fluid Leak Post Endoscopic Skull Base Surgery.
    Author: Ajlan A, Basindwah S, Hawsawi A, Elmutawi H, Alsaleh S, Alrasheed A, Alroqi A, Alqurashi A.
    Journal: World Neurosurg; 2024 Jan; 181():e897-e905. PubMed ID: 37944857.
    Abstract:
    BACKGROUND: The reconstruction technique and materials used for endoscopic skull base surgery (ESBS) are important factors in preventing cerebrospinal fluid (CSF) leak, a notable complication following this surgery. Visualizing the status of reconstruction early in the postoperative course can help determine the risk of postoperative CSF leak. Here, we aimed to determine if the radiological status of reconstruction post endonasal endoscopic surgery can predict postoperative CSF leak. METHODS: This retrospective study included patients who had undergone ESBS between 2015 and 2020. An early computed tomography (CT) scan (obtained within 24 hours of surgery) was utilized to evaluate the reconstruction and postoperative radiological changes, and its findings were correlated with the occurrence of postoperative CSF leaks. RESULTS: Our study included 11 (12.7%) out of 86 patients with CSF leaks. The type of reconstruction, construction material, and type of nasal packing were not identified as significant risk factors for CSF leaks. The location of the fat graft (placed properly vs. displaced out of the surgical cavity) was significantly associated with CSF leak (P = 0.001). All patients with a displaced solid reconstruction (n = 5), displaced septal flap (n = 6), signs of air continuation (n = 2), or significantly increased amount of air (n = 5) presented with a CSF leak (P < 0.001). CONCLUSIONS: Early postoperative CT scan is predictive of CSF leak. Displacement of the fat graft in early postoperative CT was the most important factor in predicting CSF leak. In this patient group, paying attention to radiological predictors of CSF leaks is important, supported by clinical findings.
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