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01-07-2019 | Intracranial Aneurysm | Original Article - Vascular Neurosurgery - Aneurysm

Ruptured PICA aneurysms: presentation and treatment outcomes compared to other posterior circulation aneurysms. A Swiss SOS study

Authors: Daniele Starnoni, Rodolfo Maduri, Khalid Al Taha, David Bervini, Daniel Walter Zumofen, Martin Nikolaus Stienen, Bawarjan Schatlo, Christian Fung, Thomas Robert, Martin A. Seule, Jan-Karl Burkhardt, Nicolai Maldaner, Michel Rothlisberger, Kristine A. Blackham, Serge Marbacher, Donato D’Alonzo, Luca Remonda, Paolo Machi, Jan Gralla, Philippe Bijlenga, Guillaume Saliou, Pierluigi Ballabeni, Marc Levivier, Mahmoud Messerer, Roy Thomas Daniel, Swiss SOS Group

Published in: Acta Neurochirurgica | Issue 7/2019

Abstract

Background and purpose

Aneurysms of the posterior inferior cerebellar artery (PICA) are relatively uncommon and evidence is sparse about patients presenting with ruptured PICA aneurysms. We performed an analysis of the Swiss SOS national registry to describe clinical presentation, treatment pattern, and neurological outcome of patients with ruptured PICA aneurysms compared with other ruptured posterior circulation (PC) aneurysms.

Methods

This was a retrospective analysis of anonymized data from the Swiss SOS registry (Swiss Study on Aneurysmal Subarachnoid Hemorrhage; 2009–2014). Patients with ruptured PC aneurysms were subdivided into a PICA and non-PICA group. Clinical, radiological, and treatment-related variables were identified, and their impact on the neurological outcome was determined in terms of modified Rankin score at discharge and at 1 year of follow-up for the two groups.

Results

Data from 1864 aneurysmal subarachnoid hemorrhage patients were reviewed. There were 264 patients with a ruptured PC aneurysm. Seventy-four PICA aneurysms represented 28% of the series; clinical and radiological characteristics at admission were comparable between the PICA and non-PICA group. Surgical treatment was accomplished in 28% of patients in the PICA group and in the 4.8% of patients in the non-PICA group. No statistically significant difference was found between the two groups in terms of complications after treatment. Hydrocephalus requiring definitive shunt was needed in 21.6% of PICA patients (p = 0.6); cranial nerve deficit was present in average a quarter of the patients in both PICA and non-PICA group with no statistical difference (p = 0.3). A more favorable outcome (66.2%) was reported in the PICA group at discharge (p < 0.05) but this difference faded over time with a similar neurological outcome at 1-year follow-up (p = 0.09) between both PICA and non-PICA group. The Kaplan-Meyer estimation showed no significant difference in the mortality rate between both groups (p = 0.08).

Conclusions

In the present study, patients with ruptured PICA aneurysms had a favorable neurological outcome in more than two thirds of cases, similar to patients with other ruptured PC aneurysms. Surgical treatment remains a valid option in a third of cases with ruptured PICA aneurysms.

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Title: Ruptured PICA aneurysms: presentation and treatment outcomes compared to other posterior circulation aneurysms. A Swiss SOS study
Authors: Daniele Starnoni
Rodolfo Maduri
Khalid Al Taha
David Bervini
Daniel Walter Zumofen
Martin Nikolaus Stienen
Bawarjan Schatlo
Christian Fung
Thomas Robert
Martin A. Seule
Jan-Karl Burkhardt
Nicolai Maldaner
Michel Rothlisberger
Kristine A. Blackham
Serge Marbacher
Donato D’Alonzo
Luca Remonda
Paolo Machi
Jan Gralla
Philippe Bijlenga
Guillaume Saliou
Pierluigi Ballabeni
Marc Levivier
Mahmoud Messerer
Roy Thomas Daniel
Swiss SOS Group
Publication date: 01-07-2019
Publisher: Springer Vienna
Keywords: Intracranial Aneurysm
Subarachnoid Hemorrhage
Hydrocephalus
Aneurysm
Aneurysm
Hydrocephalus
Subarachnoid Hemorrhage
Hydrocephalus
Pica
Published in: Acta Neurochirurgica / Issue 7/2019
Print ISSN: 0001-6268
Electronic ISSN: 0942-0940
DOI: https://doi.org/10.1007/s00701-019-03894-5

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Springer Medicine

Ruptured PICA aneurysms: presentation and treatment outcomes compared to other posterior circulation aneurysms. A Swiss SOS study

Abstract

Background and purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background and purpose

Methods

Results

Conclusions

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