Contemporary indications and outcomes of open surgical cerebral aneurysm management in the endovascular era - Report - MDSpire

Contemporary indications and outcomes of open surgical cerebral aneurysm management in the endovascular era

  • By

  • Jonathan Rychen

  • Christian Ferreira

  • Marcio Y. Ferreira

  • Zoey Croft

  • Valentin F. Weiger

  • Griffin Thomas

  • Christian Rajkovic

  • Katherine Stark

  • Yafell Serulle

  • Jason A. Ellis

  • David J. Langer

  • June 24, 2026

  • 0 min

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Clinical Report: Current Indications and Results of Open Surgical Treatment for Cerebral Aneurysms

Overview

This study analyzes the contemporary indications and outcomes of open surgical treatment for intracranial aneurysms (IA) in an era dominated by endovascular techniques. It highlights the high rates of complete aneurysm occlusion achieved through microsurgery, even in complex cases.

Background

The management of intracranial aneurysms has shifted significantly towards endovascular techniques over the past two decades. However, certain aneurysms still require open surgical intervention due to their anatomical characteristics. Understanding the current indications for surgery is crucial.

Data Highlights

ParameterValue
Total Aneurysms Analyzed432
Open Surgery Cases39.1%
Subarachnoid Hemorrhage Cases41.4%
Complete Aneurysm Occlusion Rate93.3%
Major Complication Rate3.6%
Minor Complication Rate7.9%

Key Findings

  • 39.1% of aneurysms were treated with open surgery, while 60.9% received endovascular therapies.
  • 41.4% of surgical cases presented with subarachnoid hemorrhage.
  • Wide-necked aneurysms were the most common reason for selecting open surgery (27%).
  • 93.3% of cases achieved complete aneurysm occlusion.
  • Major and minor complication rates were 3.6% and 7.9%, respectively.
  • Adjunctive techniques were necessary in 9.3% of cases, and cerebral bypass and trapping were required in 5.7% of cases.

Clinical Implications

The findings suggest that open surgical treatment is necessary for certain intracranial aneurysms that are unsuitable for endovascular approaches.

Conclusion

This study outlines the indications for open surgical treatment for intracranial aneurysms in the endovascular era, achieving high rates of occlusion with manageable complication rates.

Related Resources & Content

  1. Acta Neurochirurgica, 2023 -- Integrated neuropsychological assessment in patients undergoing neurosurgical and endovascular treatment of unruptured cerebral aneurysms: results of a prospective observational study
  2. Comparative Analysis of Endovascular Embolization and Surgical Clipping for Basilar Artery Aneurysms, 2021 -- Insights from a Single Surgeon Experience in the Endovascular Era
  3. Hybrid Neurosurgical and Endovascular Approaches for Managing Unruptured Cerebral Aneurysms, 2021 -- Integrating Surgical Expertise and Healthcare Team Coordination
  4. 2023 Guideline for the Management of Patients With Aneurysmal Subarachnoid Hemorrhage -- A Guideline From the American Heart Association/American Stroke Association
  5. Evaluation of Endovascular Approaches for Treating Anterior Choroidal Aneurysms: Insights from a Single-Center Study Involving 80 Cases
  6. 2023 Guideline for the Management of Patients With Aneurysmal Subarachnoid Hemorrhage: A Guideline From the American Heart Association/American Stroke Association
  7. International subarachnoid aneurysm trial (ISAT) of neurosurgical clipping versus endovascular coiling in 2143 patients with ruptured intracranial aneurysms: a randomised comparison of effects on survival, dependency, seizures, rebleeding, subgroups, and aneurysm occlusion - ScienceDirect
  8. Guidelines for the Management of Patients With Unruptured Intracranial Aneurysms: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association

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