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Updated: Jan 31, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms

Published on: August 11, 2015

未破裂海綿体動脈瘤に対するフローダイバージョン術後の軍用機パイロットの飛行復帰

Hui Zhang¹, Cheng-Ye Zhang¹, Cheng-Cheng Zhao²

¹Department of Neurosurgery, Air Force Medical Center of the PLA, Beijing, China.

Frontiers in neurology

|January 30, 2026

要旨

Objective:

Advances in neuroimaging have increased detection of unruptured paraclinoid aneurysms among military pilots, a population subjected to unique environmental stressors that may elevate rupture risk. However, optimal management remains clinically uncertain. This study introduced the procedural safety, occlusion efficacy, and flight requalification outcomes following flow diversion (FD) treatment in this cohort.

Methods:

A retrospective review was conducted on military pilots who underwent FD treatment for unruptured paraclinoid aneurysms between 2019 and 2024. Demographic, aneurysm, and treatment data were collected. Outcomes included procedural success, occlusion status (assessed by the Modified O'Kelly-Marotta (OKM) scale), and flight requalification status.

Results:

Four pilots with five aneurysms underwent successful FD implantation. All achieved complete aneurysm occlusion (OKM-D) at 12-month follow-up without thromboembolic or hemorrhagic complications. Two high-performance fighter pilots initially received dual-seat restrictions before full clearance; one helicopter pilot and one transport aircraft pilot were cleared directly. All pilots successfully returned to flight duties, accumulating 80-200 safe flight hours post-treatment.

Conclusion:

FD treatment for unruptured paraclinoid aneurysms in military pilots is safe and effective, facilitating timely return to flight duty with appropriate aeromedical evaluation.

キーワード:

航空医学的認定フローダイバージョン軍用機パイロット神経介入海綿体動脈瘤

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Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment

Published on: September 25, 2009

Fluorescence Angiography for Evaluation of Aneurysm Perfusion and Parent Artery Patency in Rat and Rabbit Aneurysm Models

Fluorescence Angiography for Evaluation of Aneurysm Perfusion and Parent Artery Patency in Rat and Rabbit Aneurysm Models

Published on: July 24, 2019

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