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Updated: Jun 20, 2026
11:58
Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
15.5K
[Russian study on brain aneurysm surgery: a continuation (RIHA II)].
V V Krylov1,2,3, T A Shatokhin1,2,3, I M Shetova3
1Pirogov Russian National Research Medical University, Moscow, Russia.
Zhurnal Voprosy Neirokhirurgii Imeni N. N. Burdenko
|February 9, 2024
Summary
Neurosurgical interventions for cerebral aneurysms decreased, with a shift towards endovascular techniques and improved outcomes. More surgeries occurred in the acute hemorrhage period, indicating enhanced neurosurgical service performance.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Public Health
Context:
- Analysis of neurosurgical departments in the Russian Federation between 2017 and 2021.
- Inclusion of 6,135 patients across 22 neurosurgical departments.
- Assessment of cerebral aneurysm treatment trends and outcomes.
Purpose:
- To evaluate key performance indicators in the surgical treatment of cerebral aneurysms.
- To identify factors influencing postoperative outcomes in neurosurgical departments.
- To track changes in treatment modalities and patient outcomes over time.
Summary:
- A decrease in overall cerebral aneurysm surgeries was observed, potentially linked to the COVID-19 pandemic.
- An increase in endovascular interventions (52% in 2021) and a decrease in microsurgical procedures (48% in 2021).
- Postoperative mortality rates declined (5.6% in 2021 vs. 6.3% in 2017), and surgeries during the acute hemorrhage period increased (70% in 2021).
Impact:
- The study highlights a positive trend of reduced mortality despite fewer interventions, suggesting improved treatment efficacy.
- Increased adoption of endovascular techniques and revascularization signifies advancements in neurosurgical practice.
- A rise in high-volume centers performing over 50 annual interventions indicates a potential consolidation of expertise.
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