医学
特征跟踪
心脏病学
磁共振成像
心脏磁共振
内科学
特征(语言学)
拉伤
跟踪(教育)
放射科
人工智能
模式识别(心理学)
心理学
教育学
语言学
哲学
计算机科学
作者
Zhaoxia Yang,Jinyang Wen,Dazong Tang,Yi Luo,Chunlin Xiang,Liming Xia,Lu Huang
出处
期刊:Journal of Thoracic Imaging
[Ovid Technologies (Wolters Kluwer)]
日期:2023-11-06
卷期号:39 (3): W40-W47
标识
DOI:10.1097/rti.0000000000000760
摘要
Purpose: Previous studies demonstrated the impact of sex on left ventricular (LV) strain in patients with essential hypertension. However, little is known about the effect of sex on left atrial (LA) strain in patients with hypertension. This study aimed to explore the sex-related differences of LA strain by using cardiac magnetic resonance feature tracking in patients with hypertension and preserved LV ejection fraction. Materials and Methods: One hundred and fifty hypertensive patients (100 men and 50 women) and 105 age-matched and sex-matched normotensive controls (70 men and 35 women) were retrospectively enrolled and underwent cardiac magnetic resonance examination. LA strain parameters included LA reservoir strain (εs), conduit strain (εe), pump strain (εa), and their corresponding strain rate (SRs, SRe, and SRa). Results: Men had significantly higher LV mass index, lower εs and εe than women in both patients and controls (all P <0.05). LA strain and strain rate were significantly reduced in hypertensive patients compared with controls, both in men and women (all P <0.05). In men, hypertension and its interaction were associated with increased LV mass index and decreased εs and εe. In multivariable analysis, men, LV ejection fraction, and LA minimum volume index remained independent determinants of εs and εe in all hypertensive patients (all P <0.05). Conclusion: LA strain was significantly impaired in hypertensive patients, and men had more impaired LA strain than women. These findings further emphasize the sex-related differences in the response of LA strain to hypertension in the early stage.
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