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Small intracranial aneurysms of the anterior circulation: A negligible risk?
Thiemo Florin Dinger
1 ,
Jonas Peschke
1 ,
Mehdi Chihi
1 ,
Meltem Gümüs
1 ,
Maryam Said
1 ,
Alejandro Nicolas Santos
1 ,
Jan Rodemerk
1 ,
Anna Michel
1 ,
Marvin Darkwah Oppong
1 ,
Yan Li
2 ,
Cornelius Deuschl
2 ,
Karsten Henning Wrede
1 ,
Philipp René Dammann
1 ,
Benedikt Frank
3 ,
Christoph Kleinschnitz
3 ,
Michael Forsting
2 ,
Ulrich Sure
1 ,
Ramazan Jabbarli
1
Feb 2023
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Abstract
According to the International Study of Unruptured Intracranial Aneurysms, small (<7 mm) unruptured intracranial aneurysms (IAs) of the anterior circulation (aC) carry a neglectable 5-year rupture risk. In contrast, some studies report frequencies of >20% of all ruptured IAs being small IAs of the aC. This contradiction was addressed in this study by analyzing the rates and risk factors for rupture of small IAs within the aC.