左房附颈的定义及解剖描述。

IF 2.3 4区 医学 Q1 ANATOMY & MORPHOLOGY
Clinical Anatomy Pub Date : 2023-11-29 DOI:10.1002/ca.24125
Jakub Batko, Rafał Jakiel, Agata Krawczyk–Ożóg, Radosław Litwinowicz, Jakub Hołda, Stanisław Bartuś, Krzysztof Bartuś, Mateusz K. Hołda, Małgorzata Konieczyńska
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引用次数: 0

摘要

左心耳(LAA)是众所周知的心脏血栓形成的来源。尽管具有重要的临床意义,但LAA颈在解剖学上仍然定义不清。因此,本研究旨在定义LAA颈部并确定其形态学特征。我们对200例患者(女性47%,66.5±13.6岁)进行了基于增强心电图门控计算机断层扫描的心室三维重建。LAA颈部被定义为截断的锥形管,近端以LAA口为界,远端以肺叶起源为界,98.0%的病例存在。LAA颈部中轴线14.7±2.3 mm。LAA颈壁平均面积856.6±316.7 mm2。LAA颈部可分为主动脉、动脉(最小)、静脉(最大)和游离表面。所有区域均呈梯形形状,近端基部较宽。不同LAA类型LAA颈部形态计量学特征差异无统计学意义。在LAA颈部的主要形态计量参数中,中轴长度和LAA颈壁面积在性别上存在显著差异。LAA颈部可以通过计算机断层扫描及其三维重建来评估。目前的研究提供了LAA颈部的复杂形态计量学分析。本研究中LAA颈部的精确定义和形态学细节可能会影响LAA排除手术的有效性和安全性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Definition and anatomical description of the left atrial appendage neck

Definition and anatomical description of the left atrial appendage neck

The left atrial appendage (LAA) is well known as a source of cardiac thrombus formation. Despite its clinical importance, the LAA neck is still anatomically poorly defined. Therefore, this study aimed to define the LAA neck and determine its morphometric characteristics. We performed three-dimensional reconstructions of the heart chambers based on contrast-enhanced electrocardiography–gated computed tomography scans of 200 patients (47% females, 66.5 ± 13.6 years old). The LAA neck was defined as a truncated cone-shaped canal bounded proximally by the LAA orifice and distally by the lobe origin and was present in 98.0% of cases. The central axis of the LAA neck was 14.7 ± 2.3 mm. The mean area of the LAA neck walls was 856.6 ± 316.7 mm2. The LAA neck can be divided into aortic, arterial (the smallest), venous (the largest), and free surfaces. All areas have a trapezoidal shape with a broader proximal base. There were no statistically significant differences in the morphometric characteristics of the LAA neck between LAA types. Statistically significant differences between the sexes in the main morphometric parameters of the LAA neck were found in the central axis length and the LAA neck wall area. The LAA neck can be evaluated from computed tomography scans and their three-dimensional reconstructions. The current study provides a complex morphometric analysis of the LAA neck. The precise definition and morphometric details of the LAA neck presented in this study may influence the effectiveness and safety of LAA exclusion procedures.

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来源期刊
Clinical Anatomy
Clinical Anatomy 医学-解剖学与形态学
CiteScore
5.50
自引率
12.50%
发文量
154
审稿时长
3 months
期刊介绍: Clinical Anatomy is the Official Journal of the American Association of Clinical Anatomists and the British Association of Clinical Anatomists. The goal of Clinical Anatomy is to provide a medium for the exchange of current information between anatomists and clinicians. This journal embraces anatomy in all its aspects as applied to medical practice. Furthermore, the journal assists physicians and other health care providers in keeping abreast of new methodologies for patient management and informs educators of new developments in clinical anatomy and teaching techniques. Clinical Anatomy publishes original and review articles of scientific, clinical, and educational interest. Papers covering the application of anatomic principles to the solution of clinical problems and/or the application of clinical observations to expand anatomic knowledge are welcomed.
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