Evaluation of Right and Left Ventricular Deformation Analysis in İdiopathic Right Bundle Branch Block by Speckle Tracking Echocardiography

IF 1.4 4区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS Echocardiography-A Journal of Cardiovascular Ultrasound and Allied Techniques Pub Date : 2025-01-28 DOI:10.1111/echo.70056

Özden Seçkin Göbüt, Burak Sezenöz, Muhammet Küçükbardaslı, Betül Ayça Yamak, Serkan Ünlü

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Abstract

Background

Idiopathic right bundle branch block (RBBB) is often seen as harmless and common. However, many studies show it might be linked to negative health outcomes. So, it is crucial to fully understand how RBBB affects the heart's ventricles.

Objectives

This study aims to examine the right and left ventricular systolic functions in patients with idiopathic RBBB and compare them to those in a healthy control group.

Material and Methods

Echocardiographic images were obtained from patients with idiopathic RBBB and healthy control participants. Conventional echocardiographic parameters were measured. Two-dimensional (2D) speckle tracking strain analysis was used to assess deformation indices.

Results

Thirty-nine patients with idiopathic RBBB and 35 healthy participants were included in the study. There were no significant differences in the chamber dimensions of the left ventricle (LV) and right ventricle (RV) between the groups. LV ejection fraction (EF), RV fractional area change (FAC), and tricuspid annular plane systolic excursion (TAPSE) measurements were similar between the groups. LV global longitudinal strain (GLS) (−25.5 ± 5.7% vs. −22.1 ± 4.2%, p < 0.05), RV GLS (−26.9 ± 4.6% vs. −24.0 ± 4.4%, p < 0.05), and interventricular septum longitudinal strain (IVS LS) (−24.3 ± 4.9% vs. −19.1 ± 4.2%, p < 0.05) were significantly reduced in patients with idiopathic RBBB compared to controls, indicating impaired myocardial shortening. Significant differences were also observed in LV (15 [5–30] vs. 30 [20–60], p < 0.05) and RV (18 [7–35] vs. 36 [24–80], p < 0.05) mechanical dispersion, with the differences being more pronounced for the RV between the groups. LV torsion (2.1 ± 0.6 vs. 1.6 ± 0.5, p < 0.05) was also worse in patients with idiopathic RBBB.

Conclusion

Our findings show that idiopathic RBBB significantly affects the longitudinal strain and synchronization of both the LV and RV.

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斑点跟踪超声心动图评价İdiopathic右束支传导阻滞的左右心室变形分析。

背景：特发性右束支阻滞（RBBB）通常被认为是无害且常见的。然而，许多研究表明，它可能与负面的健康结果有关。因此，充分了解RBBB如何影响心脏心室是至关重要的。目的：本研究旨在研究特发性RBBB患者的左右心室收缩功能，并与健康对照组进行比较。材料和方法：从特发性RBBB患者和健康对照者获得超声心动图图像。测量常规超声心动图参数。采用二维散斑跟踪应变分析方法评估变形指标。结果：39例特发性RBBB患者和35名健康受试者被纳入研究。两组患者左心室（LV）和右心室（RV）的腔室尺寸差异无统计学意义。左室射血分数（EF）、右室分数面积变化（FAC）和三尖瓣环平面收缩偏移（TAPSE）测量值在两组之间相似。左室整体纵向应变（GLS）（-25.5±5.7% vs. -22.1±4.2%,p）结论：特发性RBBB显著影响左室和右室的纵向应变和同步。

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来源期刊

Echocardiography-A Journal of Cardiovascular Ultrasound and Allied Techniques 医学-心血管系统

CiteScore

2.40

自引率

6.70%

发文量

211

审稿时长

3-6 weeks

期刊介绍： Echocardiography: A Journal of Cardiovascular Ultrasound and Allied Techniques is the official publication of the International Society of Cardiovascular Ultrasound. Widely recognized for its comprehensive peer-reviewed articles, case studies, original research, and reviews by international authors. Echocardiography keeps its readership of echocardiographers, ultrasound specialists, and cardiologists well informed of the latest developments in the field.