Reverse remodeling of left atrium assessed by cardiovascular magnetic resonance feature tracking in hypertrophic obstructive cardiomyopathy after septal myectomy

Yang, Shujuan; Chen, Xiuyu; Zhao, Kankan; Yu, Shiqin; Dong, Wenhao; Wang, Jiaxin; Yang, Keming; Yang, Qiulan; Ma, Xuan; Dong, Zhixiang; Liu, Lele; Song, Yanyan; Lü, Ming-De; Wang, Shuiyun; Zhao, Shihua

doi:10.1186/s12968-023-00915-2

Cited by 8 publications

(3 citation statements)

References 41 publications

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“…Cardiac CT is highly valuable and versatile tool which could identify the components of outflow tract obstruction and apical aneurysm [ 63 ]. MRI showed LA reverse remodeling in HOCM patients after septal myectomy, which displayed a reduction in LA size and a restoration in LA reservoir and function, but unchanged LA conduit function [ 64 ]. However, myocardial fibrosis was increased after myectomy in the one-year follow-up, which is observed by late gadolinium enhancement in the left ventricle [ 65 ].…”

Section: Cardiac Surgical Diseasesmentioning

confidence: 99%

Multimodality Cardiovascular Imaging for Totally Video-Guided Thorascopic Cardiac Surgery

Jiang,

Huang,

Yin

et al. 2024

Rev. Cardiovasc. Med.

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Totally video-guided thorascopic cardiac surgery (TVTCS) represents one of the most minimally invasive access routes to the heart. Its feasibility and safety can be guaranteed by an experienced surgeon with skilled operative techniques under the guidance of a video signal via thoracoscopy and the imaging from transesophageal echocardiography. At present, this surgical approach has been applied for atrioventricular valve disease, atrial septum defects plus and partial anomalous pulmonary venous drainage, cardiac tumors, hypertrophic obstructive cardiomyopathy, aortic valve disease, and atrial fibrillation. Multimodality cardiovascular imaging, including echocardiography, X-ray, computed tomography (CT), magnetic resonance imaging (MRI) and cardiac catheterization, provides morphologic characteristics and function status of the cardiovascular system and a comprehensive view of the target anatomy. In this review, the benefits of multimodality cardiovascular imaging are summarized for the clinical practice of TVTCS, including the preoperative preparation, intraoperative guidance and postoperative supervision. The disease categories are also individually reviewed on the basis of multimodality cardiovascular imaging, to ensure the feasibility and safety for TVTCS. Cardiovascular imaging technologies not only confirm who is a candidate for this surgical technique, but also provide technical support during the procedure and for postop follow to assess the clinical outcomes. Multimodality cardiovascular imaging is instrumental to provide the requirements to solve the problems for conduction of TVTCS; and to provide individualized protocols with high-resolution and real-time dynamic imaging fusion.

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Section: Cardiac Surgical Diseasesmentioning

confidence: 99%

Multimodality Cardiovascular Imaging for Totally Video-Guided Thorascopic Cardiac Surgery

Jiang,

Huang,

Yin

et al. 2024

Rev. Cardiovasc. Med.

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“…Cardiac magnetic resonance (CMR)-derived feature-tracking technology enables visualization and quanti cation of myocardial strain [15]. Several studies that used CMR-Tagging as a reference standard have shown the good reproducibility of this technique [16,17].…”

Section: Introductionmentioning

confidence: 99%

“…Patients with T2DM and AR show an increase in LV end-diastolic volume (LVEDV) and pressure, affecting the LA function and aggravating the LV function [13]. Patients with T2DM alone and those with T2DM with mitral regurgitation exhibit decreased LA strain [14].However, there have been few studies on impaired LA strain and atrioventricular coupling in patients with T2DM and AR.Cardiac magnetic resonance (CMR)-derived feature-tracking technology enables visualization and quanti cation of myocardial strain [15]. Several studies that used CMR-Tagging as a reference standard have shown the good reproducibility of this technique [16,17].…”

mentioning

confidence: 99%

Left-atrioventricular interaction and left-atrial deformation in type 2 diabetes mellitus patients with or without chronic aortic regurgitation: A 3.0T cardiac magnetic resonance feature-tracking study

Shen,

Jiang,

Shi

et al. 2023

Preprint

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Background: The prevalence of type 2 diabetes mellitus (T2DM) and chronic aortic regurgitation (AR) increases with age and might increase cardiac morbidity and mortality; however, their comprehensive effects based on cardiac strain remain unexplored. This study aimed to use cardiac magnetic resonance feature tracking to investigate the additive effects of T2DM and AR on the left heart and left-atrioventricular (LA) interaction in patients with T2DM and AR. Methods: A total of 286 patients with T2DM (203 without AR, 83 with AR) and 105 normal controls were retrospectively included from January 2015 to October 2022. The patients with T2DM and AR were divided according to echocardiographic findings into three AR groups: mild (n = 39), moderate (n = 25), and severe (n = 19)]. The LA phasic function and left-ventricular (LV) function parameters were compared to determine the additive effects of T2DM and AR and their interaction. Multivariate analysis was performed to identify the independent indicators of LA longitudinal strain. Results: Compared with controls, the patients with T2DM without AR had a lower total LA emptying fraction (LAEF) and passive LAEF (all P < 0.05). The patients with T2DM and mild AR showed decreased LA reservoir strain (εs) and passive strain (εe) (P < 0.001), whereas those with moderate and severe AR showed significant increases in LA volume and LV volume but a decrease in LAEF, LA strain, and LV ejection fraction (all P < 0.05). In the patients with T2DM and AR, the εs was independently correlated with LV end-diastolic volume (LVEDV) (β = −0.304), regurgitation degree (β = −0.43), and LV mass index (LVMI) (β = −0.312). The active strain (εa) was independently correlated with regurgitation degree (β = −0.478) and LVMI (β = −0.364), whereas the εe was independently correlated with age (β = −0.226) and diabetes duration (β = −0.256, all P < 0.05). Conclusion: AR may aggravate LA and LV dysfunction in patients with T2DM. Regurgitation degree was an independent factor contributing to εs and εa. Both LVEDV and LVMI were independent determinants affecting εs, and LVMI was an independent determinant of εa in patients with T2DM and AR.

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Left Atrial Phasic Function Impairment in Subacute and Chronic Pulmonary Embolism Patients With Different Degrees of Obstruction: An MRI Feature Tracking Study

Shen,

Li,

Shen

et al. 2024

Magnetic Resonance Imaging

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BackgroundThe alteration of left atrial (LA) phasic function in subacute and chronic pulmonary embolism (PE) patients is unclear.PurposeTo investigate LA phasic strain and LA‐right ventricular (RV) interaction in subacute and chronic PE patients with different degrees of obstruction by MRI‐feature tracking (MRI‐FT).Study TypeRetrospective.PopulationOne hundred three PE patients (54 subacute [2 weeks to 3 months after initial symptoms], 49 chronic [>3 months after initial symptoms]) and 80 controls.Field Strength/Sequence3.0 T/balanced steady state free precession sequence.AssessmentPatients were divided into mild (pulmonary artery obstruction index [PAOI] < 30%, N = 57), moderate (30% ≤ PAOI < 50%, N = 27), and severe (50% ≥ PAOI, N = 19) PE subgroups. LA reservoir, conduit, and active pump longitudinal strains (εs, εe, and εa) and strain rates (SRs, SRe, and SRa) and biventricular global strains were measured. Determinants of LA strains were investigated.Statistical TestsANOVA, t‐tests, Mann–Whitney U tests, linear regression. P < 0.05 was considered statistically significant.ResultsFor both subacute and chronic PE patients, LA reservoir, conduit, and active pump strains and strain rates were significantly lower than in controls. However, there were no significant differences in LA strains between patients with subacute and chronic PE (P = 0.933, 0.625, and 0.630 for εs, εe, and εa). The severe PE subgroup had significantly higher εa and SRa than the mild and moderate PE subgroups. LA strains were significantly correlated with RV diameter and biventricular strains, and RV diameter (β = −6.836, −4.084, and −1.899 for εs, εe, and εa) was independently associated with LA strains after adjustment for other factors (R2 = 0.627, 0.536, and 0.437 for εs, εe, and εa).Data ConclusionLA phasic function evaluated by MRI‐FT was significantly impaired in subacute and chronic PE patients, and LA active pump function in the severe PE subgroup was higher than that in the mild and moderate PE subgroups. The independent association between RV diameter and LA strains demonstrates that RV diameter may be an important indicator for monitoring LA dysfunction in PE patients.Evidence Level3Technical EfficacyStage 3

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Reverse remodeling of left atrium assessed by cardiovascular magnetic resonance feature tracking in hypertrophic obstructive cardiomyopathy after septal myectomy

Cited by 8 publications

References 41 publications

Multimodality Cardiovascular Imaging for Totally Video-Guided Thorascopic Cardiac Surgery

Multimodality Cardiovascular Imaging for Totally Video-Guided Thorascopic Cardiac Surgery

Left-atrioventricular interaction and left-atrial deformation in type 2 diabetes mellitus patients with or without chronic aortic regurgitation: A 3.0T cardiac magnetic resonance feature-tracking study

Left Atrial Phasic Function Impairment in Subacute and Chronic Pulmonary Embolism Patients With Different Degrees of Obstruction: An MRI Feature Tracking Study

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