Closure strategy for endoscopic pituitary surgery: Experience from 3015 patients
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Updated: Aug 13, 2025
Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Bertrand Baussart1,2, Alice Venier3, Anne Jouinot2
1Department of Neurosurgery, La Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.
Introduction:
Effective strategies are required to ensure optimal management of the crucial closure step in endoscopic pituitary surgery. Many surgical techniques have been reported but no significant consensus has been defined.
Methods:
Between January 2006 and March 2022, 3015 adult patients with pituitary adenomas were operated on by a single expert neurosurgical team, using a mononostril endoscopic endonasal approach. Based of preoperative risk factors of and operative findings, a detailed closure strategy was used. Body mass index >40, sellar floor lysis, number of surgeries>2, large skull base destruction, prior radiotherapy were considered as preoperative risk factors for closure failure. All patients treated with an expanded endonasal approach were excluded.
Results:
Patients were mostly women (F/M ratio: 1.4) with a median age of 50 (range: 18 -89). Intraoperative CSF leak requiring specific surgical management was observed in 319/3015 (10.6%) of patients. If intraoperative leak occurred, patients with predictive risk factors were managed using a Foley balloon catheter in case of sellar floor lysis or BMI>40 and a multilayer repair strategy with a vascularized nasoseptal flap in other cases. Postoperative CSF leak occurred in 29/3015 (1%) of patients, while meningitis occurred in 24/3015 (0.8%) of patients. In patients with intraoperative leak, closure management failed in 11/319 (3.4%) of cases.
Conclusion:
Based on our significant 16-year experience, our surgical management is reliable and easy to follow. With a planned and stepwise strategy, the closure step can be optimized and tailored to each patient with a very low failure rate.
Insights
A tailored, stepwise closure strategy for endoscopic pituitary surgery is effective, significantly reducing failure rates. This approach optimizes management for patients undergoing pituitary adenoma removal.
Area of Science:
- Neurosurgery
- Endoscopic Surgery
- Skull Base Surgery
Background:
- Optimal closure strategies are crucial for endoscopic pituitary surgery.
- A defined consensus on closure techniques is lacking.
- Endoscopic endonasal approach is widely used for pituitary adenomas.
Purpose of the Study:
- To present a reliable and stepwise closure strategy for endoscopic pituitary surgery.
- To evaluate the effectiveness of a tailored closure approach based on risk factors.
- To minimize closure failure rates in pituitary adenoma surgery.
Main Methods:
- A retrospective analysis of 3015 adult patients with pituitary adenomas treated between 2006 and 2022.
- Utilized a mononostril endoscopic endonasal approach by a single neurosurgical team.
- Applied a detailed closure strategy based on preoperative risk factors and operative findings, excluding expanded endonasal approaches.
Main Results:
- Intraoperative cerebrospinal fluid (CSF) leak occurred in 10.6% of patients.
- Postoperative CSF leak and meningitis rates were 1% and 0.8%, respectively.
- Closure management failure occurred in only 3.4% of patients with intraoperative leaks.
Conclusions:
- A planned and stepwise closure strategy is reliable and effective for endoscopic pituitary surgery.
- Tailoring the closure approach based on individual patient risk factors optimizes outcomes.
- This method significantly reduces the failure rate of the closure step in pituitary adenoma surgery.
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