Tandem straight fenestrated clipping for posterior communicating artery aneurysm with fetal-type posterior cerebral artery

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2026年6月8日

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Kristy Latour,
Marco Maria Fontanella,
Bin Xu,
Feng Xu

摘要

Background

In 20% of patients, a dominant posterior communicating artery (PCoA) supplies the occipital lobe owing to a hypoplastic P1 segment of the posterior cerebral artery (PCA).

Method

We present a reconstructive technique involving straight fenestrated clips applied in tandem for the exclusion of a postero-laterally projecting, wide-necked PCoA aneurysm with limited dome height and associated with a fetal-type PCA.

Conclusion

This configuration progressively reconstructs the supraclinoid internal carotid artery-PCoA junction, completely excludes the aneurysm neck and avoids clip slippage. Continuous intraoperative neuromonitoring supports safe flow control and patency of the perforators and anterior choroidal artery.