Clin Neuroradiol (2018) 28:183–189 DOI 10.1007/s00062-017-0559-y ORIGINAL ARTICLE Growth of Untreated Unruptured Small-sized Aneurysms (7mm): Incidence and Related Factors 1 2 3 2 2 4 Hyun Ho Choi · Young Dae Cho ·Jin Pyeong Jeon · Dong Hyun Yoo · Jusun Moon · Jeongjun Lee · 4 4 4 5 2,4 Hyun-Seung Kang · Won-Sang Cho ·Jeong Eun Kim · Li Zhang · Moon Hee Han Received: 9 November 2016 / Accepted: 10 January 2017 / Published online: 1 February 2017 © Springer-Verlag Berlin Heidelberg 2017 Abstract Results A total of 28 aneurysms (16.2%) displayed growth Purpose The need to treat small (<7 mm) unruptured during continued surveillance (1054.1 aneurysm-years). aneurysms is still controversial, despite data collected The annual growth rate was 2.65% per aneurysm-year, through several large cohort studies. Such lesions typi- with 15 surfacing within 60 months and 13 after 60 months. cally are incidental ﬁndings, usually followed for potential Multivariate analysis indicated that bifurcation type was growth through serial imaging. For this study, growth esti- the sole signiﬁcant risk factor (hazard ratio HR = 7.64; mates for untreated unruptured small-sized aneurysms were p < 0.001) in terms of growth. Cumulative survival rates generated, examining incidence and
Klinische Neuroradiologie – Springer Journals
Published: Feb 1, 2017
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