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ituitary adenomas (PAs) are the second most common brain tumors, 10% to 20% of all primary brain tumors. Transsphenoidal approach is now the gold standard for treatment of PAs either microscopic or endoscopic.
Aim of the Work to analyze the collective outcomes from studies comparing the microscopic transsphenoidal surgery (MTS) with the endoscopic transsphenoidal surgery (ETS) regarding gross total resection (GTR) and postoperative cerebrospinal fluid (CSF) leak.
We searched PubMed, Google scholar search engine, Cochrane database of systematic reviews, EMBASE and science Direct, using the following keywords “Pituitary adenoma/tumor, endoscopy or endoscopic, microscopy or microscopic, gross total/ subtotal/near total/ radicular resection/excision, hypophysectomy, debulking, CSF leak/leakage”. The mentioned databases were searched for studies published during period from the 1st of Jan 2015 to 31 Aug. 2020.
Total number of patients in included studies was 1211 of which 621 (51.3%) underwent endoscopic surgery and 590 (48.7%) underwent microscopic surgery. Of 990 patient analysed for GTR, it was achieved in 334 patients (69.4%) in endoscopic group compared with 287 patients (56.4%) in microscopic group. Of 1211 patients, Postoperative CSF leak developed in 30 patients (5.7%) compared with 32 patients (4.7%) in endoscopic and microscopic group respectively.
In conclusion: GTR was found to be slightly higher in the endoscopic group especially in cases of suprasellar and lateral cavernous extensions. CSF leak showed no significant difference between the two groups.