Chen Aizhuo, Chen Jinqing
Department of Ultrasound, Affiliated Hospital of Putian University, Putian, China.
Department of Cardiothoracic Surgery, Affiliated Hospital of Putian University, Putian, China.
Echocardiography. 2024 Dec;41(12):e70049. doi: 10.1111/echo.70049.
This is a prospective study aimed to investigate the morphology of left ventricular false tendons (LVFTs) using echocardiography and explore its associations with age, sex, body mass index (BMI), congenital heart structural abnormalities, and premature ventricular contractions (PVCs).
We analyzed data from 889 individuals who underwent consecutive echocardiograms at our ultrasound department between December 2023 and February 2024. Routine echocardiograms were performed to detect congenital structural abnormalities, with a focus on identifying LVFT. We examined the prevalence, number, and distribution of LVFTs, as well as their correlation with age, sex, BMI, and congenital heart structural abnormalities. LVFTs were detected in 460 of 889 cases (51.74%), totaling 672 LVFTs. LVFT prevalence significantly differed not only between sexes but also between ages. LVFT prevalence was higher in individuals with lower BMI. There was no significant difference in congenital heart structural abnormalities between the groups, but the composition of distinct types of structural abnormalities differed between the groups. The incidence of PVCs in the LVFT-positive group was significantly higher than in the LVFT-negative group.
The prevalence of LVFTs is notably higher in males than females and tends to decrease with advancing age and increasing BMI. LVFTs display diverse morphological features and may interact synergistically with certain congenital heart structural abnormalities. LVFTs can easily lead to PVCs in healthy people, but the risk of leading to malignant PVCs does not seem to be high. Correctly recognizing the morphological characteristics of LVFTs helps to distinguish similar ultrasonic images of different diseases, thus avoiding missed diagnoses and misdiagnoses in ultrasound work and clinical practice.
这是一项前瞻性研究，旨在使用超声心动图研究左心室假腱索（LVFTs）的形态，并探讨其与年龄、性别、体重指数（BMI）、先天性心脏结构异常和室性早搏（PVCs）的关联。
我们分析了2023年12月至2024年2月期间在我们超声科连续接受超声心动图检查的889名个体的数据。进行常规超声心动图检查以检测先天性结构异常，重点是识别LVFT。我们检查了LVFT的患病率、数量和分布，以及它们与年龄、性别、BMI和先天性心脏结构异常的相关性。889例中有460例（51.74%）检测到LVFT，共672条LVFT。LVFT患病率不仅在性别之间存在显著差异，在年龄之间也存在显著差异。BMI较低的个体中LVFT患病率较高。各组之间先天性心脏结构异常无显著差异，但不同类型结构异常的组成在各组之间有所不同。LVFT阳性组的PVCs发生率显著高于LVFT阴性组。
LVFT的患病率男性明显高于女性，且倾向于随着年龄增长和BMI增加而降低。LVFT表现出多样的形态特征，可能与某些先天性心脏结构异常协同作用。LVFT在健康人群中容易导致PVCs，但导致恶性PVCs的风险似乎不高。正确认识LVFT的形态特征有助于区分不同疾病的相似超声图像，从而避免超声工作和临床实践中的漏诊和误诊。
