Impact of Very Small Aneurysm Size and Anterior Communicating Segment Location on Outcome after Aneurysmal Subarachnoid Hemorrhage.
Publisher DOI
PubMed ID
36469672
Abstract
BACKGROUND
Very small anterior communicating artery aneurysms (vsACoA) of <5 mm in size are detected in a considerable number of patients with aneurysmal subarachnoid hemorrhage (aSAH). Single-center studies report that vsACoA harbor particular risks when treated.
OBJECTIVE
To assess the clinical and radiological outcome(s) of patients with aSAH diagnosed with vsACoA after aneurysm treatment and at discharge.
METHODS
Information on n = 1868 patients was collected in the Swiss Subarachnoid Hemorrhage Outcome Study registry between 2009 and 2014. The presence of a new focal neurological deficit at discharge, functional status (modified Rankin scale), mortality rates, and procedural complications (in-hospital rebleeding and presence of a new stroke on computed tomography) was assessed for vsACoA and compared with the results observed for aneurysms in other locations and with diameters of 5 to 25 mm.
RESULTS
This study analyzed n = 1258 patients with aSAH, n = 439 of which had a documented ruptured ACoA. ACoA location was found in 38% (n = 144/384) of all very small ruptured aneurysms. A higher in-hospital bleeding rate was found in vsACoA compared with non-ACoA locations (2.8 vs 2.1%), especially when endovascularly treated (2.1% vs 0.5%). In multivariate analysis, aneurysm size of 5 to 25 mm, and not ACoA location, was an independent risk factor for a new focal neurological deficit and a higher modified Rankin scale at discharge. Neither very small aneurysm size nor ACoA location was associated with higher mortality rates at discharge or the occurrence of a peri-interventional stroke.
CONCLUSION
Very small ruptured ACoA have a higher in-hospital rebleeding rate but are not associated with worse morbidity or mortality.
Very small anterior communicating artery aneurysms (vsACoA) of <5 mm in size are detected in a considerable number of patients with aneurysmal subarachnoid hemorrhage (aSAH). Single-center studies report that vsACoA harbor particular risks when treated.
OBJECTIVE
To assess the clinical and radiological outcome(s) of patients with aSAH diagnosed with vsACoA after aneurysm treatment and at discharge.
METHODS
Information on n = 1868 patients was collected in the Swiss Subarachnoid Hemorrhage Outcome Study registry between 2009 and 2014. The presence of a new focal neurological deficit at discharge, functional status (modified Rankin scale), mortality rates, and procedural complications (in-hospital rebleeding and presence of a new stroke on computed tomography) was assessed for vsACoA and compared with the results observed for aneurysms in other locations and with diameters of 5 to 25 mm.
RESULTS
This study analyzed n = 1258 patients with aSAH, n = 439 of which had a documented ruptured ACoA. ACoA location was found in 38% (n = 144/384) of all very small ruptured aneurysms. A higher in-hospital bleeding rate was found in vsACoA compared with non-ACoA locations (2.8 vs 2.1%), especially when endovascularly treated (2.1% vs 0.5%). In multivariate analysis, aneurysm size of 5 to 25 mm, and not ACoA location, was an independent risk factor for a new focal neurological deficit and a higher modified Rankin scale at discharge. Neither very small aneurysm size nor ACoA location was associated with higher mortality rates at discharge or the occurrence of a peri-interventional stroke.
CONCLUSION
Very small ruptured ACoA have a higher in-hospital rebleeding rate but are not associated with worse morbidity or mortality.
Date Issued
2023-02-01
Publication Type
Article
Subject(s)
Language(s)
en
Author(s)
Roethlisberger, Michel | |
Aghlmandi, Soheila | |
Rychen, Jonathan | |
Chiappini, Alessio | |
Zumofen, Daniel W | |
Bawarjan, Schatlo | |
Stienen, Martin N | |
D'Alonzo, Donato | |
Maldaner, Nicolai | |
Steinsiepe, Valentin K | |
Corniola, Marco V | |
Cianfoni, Alessandro | |
Robert, Thomas | |
Maduri, Rodolfo | |
Saliou, Guillaume | |
Starnoni, Daniele | |
Weber, Johannes | |
Seule, Martin A | |
Kulcsar, Zsolt | |
Burkhardt, Jan-Karl | |
Bozinov, Oliver | |
Remonda, Luca | |
Marbacher, Serge | |
Lövblad, Karl-Olof | |
Psychogios, Marios | |
Bucher, Heiner C | |
Mariani, Luigi | |
Bijlenga, Philippe | |
Blackham, Kristine A | |
Guzman, Raphael |
Journal
Neurosurgery
Publisher
Wolters Kluwer
ISSN
0148-396X
Access(Rights)
restricted