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学科主题: 临床医学
题名:
Dynamism of the Mitral Annulus: A Spatial and Temporal Analysis
作者: Jiang, Luyang1,2; Owais, Khurram2; Matyal, Robina2; Khabbaz, Kamal R.3; Liu, David C.3; Montealegre-Gallegos, Mario2,4; Hess, Philip E.2; Mahmood, Feroze2
关键词: mitral valve ; mitral valve annulus ; transesophageal echocardiography ; cardiac surgery
刊名: JOURNAL OF CARDIOTHORACIC AND VASCULAR ANESTHESIA
发表日期: 2014-10-01
DOI: 10.1053/j.jvca.2014.03.020
卷: 28, 期:5, 页:1191-1197
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Anesthesiology ; Cardiac & Cardiovascular Systems ; Respiratory System ; Peripheral Vascular Disease
研究领域[WOS]: Anesthesiology ; Cardiovascular System & Cardiology ; Respiratory System
关键词[WOS]: 3-DIMENSIONAL ECHOCARDIOGRAPHIC-ASSESSMENT ; VALVE REPAIR ; REGURGITATION ; ANNULOPLASTY ; GEOMETRY ; MOTION ; INSIGHTS ; SHAPE ; SIZE
英文摘要:

Objective: In this study, the authors sought to investigate the extent and timing of changes in mitral annular area during the cardiac cycle. Particularly, the authors assessed whether these changes were limited to the posterior part of the annulus or were more global in nature.

Design: Prospective, observational study

Setting: Tertiary care university hospital

Participants: Twenty three patients undergoing non-valvular cardiac surgery and 3 patients undergoing vascular procedures.

Interventions: Intraoperative 3-dimensional transesophageal echocardiographic data obtained from patients with normal mitral valves undergoing non-valvular cardiac surgery were analyzed geometrically. Annular areas and diameters were measured during various stages of the cardiac cycle. Intertrigonal distance also was measured using 3D data.

Measurements and Main Results: Both anterior and posterior portions of the mitral annulus demonstrated dynamism throughout the cardiac cycle. The expansion phase ranged from mid-systole to early-diastole, whereas mid-diastole to early-systole was characterized by an annular contraction phase. Area changes were contributed equally by anterior and posterior parts of the annulus. Annular dimensions increased in accordance with mitral annular area (p < 0.05). Echocardiographically-identified intertrigonal distance showed the least delta change.

Conclusions: Both the anterior and posterior parts of the annulus contribute to changes in mitral annular area, which undergoes discrete expansion and contraction phases that extend into both systole and diastole. Compared to other annular dimensions, the echocardiographically-identified intertrigonal distance does not change significantly during the cardiac cycle. (C) 2014 Elsevier Inc. All rights reserved.

语种: 英语
WOS记录号: WOS:000343188500003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/59229
Appears in Collections:北京大学第二临床医学院_期刊论文

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作者单位: 1.Peking Univ, Peoples Hosp, Dept Anesthesia & Pain Med, Beijing 100871, Peoples R China
2.Harvard Univ, Beth Israel Deaconess Med Ctr, Sch Med, Dept Anesthesia Crit Care & Pain Med, Boston, MA 02215 USA
3.Harvard Univ, Beth Israel Deaconess Med Ctr, Sch Med, Div Cardiac Surg, Boston, MA 02215 USA
4.Univ Costa Rica, CCSS, Hosp Mexico, Dept Anesthesiol, San Jose, Costa Rica

Recommended Citation:
Jiang, Luyang,Owais, Khurram,Matyal, Robina,et al. Dynamism of the Mitral Annulus: A Spatial and Temporal Analysis[J]. JOURNAL OF CARDIOTHORACIC AND VASCULAR ANESTHESIA,2014,28(5):1191-1197.
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