FREQUENCY AND LOCATION OF PROMINENT LEFT-VENTRICULAR TRABECULATIONS AT AUTOPSY IN 474 NORMAL HUMAN HEARTS - IMPLICATIONS FOR EVALUATION OF MURAL THROMBI BY TWO-DIMENSIONAL ECHOCARDIOGRAPHY
FREQUENCY AND LOCATION OF PROMINENT LEFT-VENTRICULAR TRABECULATIONS AT AUTOPSY IN 474 NORMAL HUMAN HEARTS - IMPLICATIONS FOR EVALUATION OF MURAL THROMBI BY TWO-DIMENSIONAL ECHOCARDIOGRAPHY
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DOI：
10.1016/s0735-1097(87)80383-2
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发表时间：
1987-02-01
影响因子：
24
通讯作者：
EDWARDS, WD
中科院分区：
文献类型：
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作者：
BOYD, MT;SEWARD, JB;EDWARDS, WD
对474例按性别和年龄均匀分布的尸检标本的左心室突出小梁的频率和位置进行了研究。在323(68%)的心脏中观察到这些结构，其频率在男性(72%)和女性(65%)受试者中相似。无论是频率还是部位，都不会随年龄的增长而明显改变。在323个有明显左室小梁的心脏中，172个(53%)显示2个或更多；因此，小梁总数为582个。在这582个小梁中，有493个(85%)是同时插入游离壁和隔膜的顶隔束。37例(6%)在室间隔的两点之间和36例(6%)的游离壁的两点之间有小梁形成。较少见的类型包括室间隔与后内侧乳头肌之间的小梁10例(2%)，室间隔与前外侧乳头肌之间的2例，游离壁与后内侧乳头肌之间的2例，两乳头肌之间的1例，心尖部与室间隔之间的1例。它们的大小、形状和位置可能会导致二维超声心动图对它们的误解，可能是壁性血栓。
The frequency and location of prominent left ventricular trabeculations were studied in 474 autopsy specimens from subjects evenly distributed by sex and age. These structures were observed in 323 (68%) of the hearts, and their frequency was similar in male (72%) and female (65%) subjects. Neither the frequency nor the location varied appreciably with age. Among the 323 hearts with prominent left ventricular trabeculations, 172 (53%) exhibited 2 or more; thus, the total nubmer of trabeculations was 582. Of these 582 trabeculations, 493 (85%) were septoparietal bundles that inserted into both the free wall and the septum. Trabeculations also were observed between two points on the ventricular septum in 37 (6%) of the hearts and between two points along the free wall in 36 (6%). Less common patterns included trabeculations between the ventricular septum and the posteromedial papillary muscle in 10 hearts (2%), the ventricular septum and the anterolateral papillary muscle in 2, the free wall and the posteromedial papillary muscle in 2, the two papillary muscles in 1 and the apex and the ventricular septum in 1. Accordingly, prominent left ventricular trabeculations are considered to be common variants of the normal human heart. Their size, shape and locations may lead to their being misinterpreted, possibly as mural thrombi, by two-dimensional echocardiography.