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Updated: May 8, 2026
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Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Pituitary Apoplexy Precipitated by Non-Cranial Surgeries: An Institutional Experience
Sonia Ajmera1, Kristen Park2, Claudia Hejazi-Garcia2
1Department of Neurosurgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, United States.
Summary
Pituitary apoplexy (PA) is rare but can occur after non-cranial surgery, especially in patients with large pituitary adenomas and hypertension. Monitoring blood pressure during surgery is crucial to prevent this serious complication.
Area of Science:
- Neuroendocrinology
- Surgical Complications
- Vascular Medicine
Background:
- Pituitary apoplexy (PA) is an acute condition involving hemorrhage or infarction of the pituitary gland, often linked to pre-existing adenomas.
- PA classically manifests with severe headache, visual disturbances, and hormonal imbalances.
- The exact mechanisms of PA are still being researched, with vascular issues and pressure within the pituitary being key factors.
Purpose of the Study:
- To investigate the risk factors and characteristics of pituitary apoplexy (PA) occurring after non-cranial surgeries.
- To identify patient and surgical factors that may predispose individuals to PA in this context.
- To establish preliminary guidelines for risk stratification and prevention in patients undergoing non-cranial procedures.
Main Methods:
- A retrospective review of patients diagnosed with PA between July 2017 and January 2024.
- Inclusion criteria focused on patients who developed PA within one week of undergoing a non-cranial surgical procedure.
- Data collected included patient history, surgical details, presenting symptoms, imaging results, and patient outcomes.
Main Results:
- Out of 56 PA patients, 4 (7.1%) experienced PA post-non-cranial surgery (e.g., cardiac, mandibulectomy, amputation).
- Affected patients often had pituitary lesions larger than 2 cm, hypertension, significant intraoperative blood pressure fluctuations, and prolonged anesthesia.
- Symptoms, including oculomotor deficits and endocrine dysfunction, typically appeared within 24 hours after surgery.
Conclusions:
- Significant intraoperative blood pressure fluctuations, pre-existing hypertension, and pituitary macroadenomas (>2 cm) are key risk factors for PA after non-cranial surgery.
- Risk stratification for patients with macroadenomas should consider adenoma size and vascular health comorbidities.
- Preoperative CT head scans may be beneficial for high-risk patients undergoing major surgeries, particularly those involving anticoagulation.
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