Purpose of Review

Speckle-tracking echocardiography (STE) can assess myocardial motion in non-LV chambers—including assessment of left atrial (LA) and right ventricular (RV) strain. This review seeks to highlight the diagnostic, prognostic, and clinical significance of these parameters in heart failure, atrial fibrillation (AF), diastolic dysfunction, pulmonary hypertension (PH), tricuspid regurgitation, and heart transplant recipients.

Recent Findings

Impaired LA strain reflects worse LV diastolic function in individuals with and without HF, and this is associated with decreased exercise capacity. Initiating treatments targeting these functional aspects may enhance exercise capacity and potentially prevent heart failure (HF). Impaired LA strain also identifies patients with a high risk of AF, and this recognition may lead to preventive strategies. Impaired RV strain has significant clinical and prognostic implications across various clinical scenarios, including HF, PH, tricuspid regurgitation, or in heart transplant recipients.

Summary

STE should not be limited to the assessment of deformation of the LV myocardium. The use of LA and RV strain is supported by a substantial evidence base, and these parameters should be used more widely.

中文翻译：

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超声心动图在左心房和右心室应变评估中的不断发展的应用

审查目的

斑点追踪超声心动图 (STE) 可以评估非左室心室中的心肌运动，包括评估左心房 (LA) 和右心室 (RV) 应变。本综述旨在强调这些参数在心力衰竭、心房颤动 (AF)、舒张功能障碍、肺动脉高压 (PH)、三尖瓣反流和心脏移植受者中的诊断、预后和临床意义。

最近的发现

左心室应变受损反映了患有或不患有心力衰竭的个体左室舒张功能较差，这与运动能力下降有关。开始针对这些功能方面的治疗可能会增强运动能力并可能预防心力衰竭（HF）。 LA 菌株受损还可以识别出房颤高风险患者，这种识别可能会导致预防策略的制定。受损的 RV 应变在各种临床情况下具有显着的临床和预后影响，包括心力衰竭、肺动脉高压、三尖瓣反流或心脏移植受者。

概括

STE 不应仅限于评估左心室心肌变形。 LA 和 RV 菌株的使用有大量证据基础支持，这些参数应该得到更广泛的使用。