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Prognostic Implications of Raphe in Bicuspid Aortic Valve Anatomy

医学 二尖瓣 心脏病学 内科学 中缝 解剖 主动脉瓣 5-羟色胺能 受体 血清素
作者
William Kong,Victoria Delgado,Kian Keong Poh,Madelien V. Regeer,Arnold C.T. Ng,Louise McCormack,Tiong Cheng Yeo,Miriam Shanks,Sarah Parent,Roxana Enache,Bogdan A. Popescu,Michael Liang,James Yip,Charlotte Lawrence,Vasileios Kamperidis,Philippe J. van Rosendael,Enno T. van der Velde,Nina Ajmone Marsan,Jeroen J. Bax
出处
期刊:JAMA Cardiology [American Medical Association]
卷期号:2 (3): 285-285 被引量:121
标识
DOI:10.1001/jamacardio.2016.5228
摘要

Little is known about the association between bicuspid aortic valve (BAV) morphologic findings and the degree of valvular dysfunction, presence of aortopathy, and complications, including aortic valve surgery, aortic dissection, and all-cause mortality.To investigate the association between BAV morphologic findings (raphe vs nonraphe) and the degree of valve dysfunction, presence of aortopathy, and prognosis (including need for aortic valve surgery, aortic dissection, and all-cause mortality).In this large international multicenter registry of patients with BAV treated at tertiary referral centers, 2118 patients with BAV were evaluated. Patients referred for echocardiography from June 1, 1991, through November 31, 2015, were included in the study.Clinical and echocardiographic data were analyzed retrospectively. The morphologic BAV findings were categorized according to the Sievers and Schmidtke classification. Aortic valve function was divided into normal, regurgitation, or stenosis. Patterns of BAV aortopathy included the following: type 1, dilation of the ascending aorta and aortic root; type 2, isolated dilation of the ascending aorta; and type 3, isolated dilation of the sinus of Valsalva and/or sinotubular junction.Association between the presence and location of raphe and the risk of significant (moderate and severe) aortic valve dysfunction and aortic dilation and/or dissection.Of the 2118 patients (mean [SD] age, 47 [18] years; 1525 [72.0%] male), 1881 (88.8%) had BAV with fusion raphe, whereas 237 (11.2%) had BAV without raphe. Bicuspid aortic valves with raphe had a significantly higher prevalence of valve dysfunction, with a significantly higher frequency of aortic regurgitation (622 [33.1%] vs 57 [24.1%], P < .001) and aortic stenosis (728 [38.7%] vs 51 [21.5%], P < .001). Furthermore, aortic valve replacement event rates were significantly higher among patients with BAV with raphe (364 [19.9%] at 1 year, 393 [21.4%] at 2 years, and 447 [24.4%] at 5 years) vs patients without raphe (30 [14.0%] at 1 year, 32 [15.0%] at 2 years, and 40 [18.0%] at 5 years) (P = .02). In addition, the all-cause mortality event rates were significantly higher among patients with BAV with raphe (77 [5.1%] at 1 year, 87 [6.2%] at 2 years, and 110 [9.5%] at 5 years) vs patients without raphe (2 [1.8%] at 1 year, 3 [3.0%] at 2 years, and 5 [4.4%] at 5 years) (P = .03). However, on multivariable analysis, the presence of raphe was not significantly associated with all-cause mortality.In this large multicenter, international BAV registry, the presence of raphe was associated with a higher prevalence of significant aortic stenosis and regurgitation. The presence of raphe was also associated with increased rates of aortic valve and aortic surgery. Although patients with BAV and raphe had higher mortality rates than patients without, the presence of a raphe was not independently associated with increased all-cause mortality.
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