ArticleQuantitative imaging in medicine and surgery2024
Investigating the clinical utility of global and regional myocardial work parameters in predicting response to cardiac resynchronization therapy in patients with heart failure and reduced ejection fraction.
Article in Quantitative imaging in medicine and surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Previous studies have indicated that despite adhering to current patient selection guidelines, there remains a 30% to 40% subset of patients who do not experience improvement in heart failure (HF) after receiving cardiac resynchronization therapy (CRT). We aim to utilize echocardiographic myocardial work parameters to serve as predictors of responsiveness to CRT in patients with heart failure and reduced ejection fraction (HFrEF). Methods: We prospectively recruited patients who underwent CRT at Sun Yat-sen Memorial Hospital from June 2019 to September 2022. Comprehensive preoperative information, clinical laboratory data, conventional echocardiographic parameters and myocardial work were collected for all participants, as well as follow-up data 6 months after CRT. Results: Twenty-five patients (67.6%) showed response to CRT treatment, while twelve patients (32.4%) had no response. Compared with the non-response group, the response group had larger region constructive work [RCW: the sum of constructive work (CW) in the 9 segments of the basal, mid, and apical segments of the anterior, lateral, and posterior walls], region wasted work [RWW: the sum of wasted work (WW) in the 6 segments of the basal and mid segments of the anterior septum, posterior septum and anterior walls], and the combination of RCW and RWW (RCW + RWW) in baseline (RCW: 9,695.68±2,955.40 Conclusions: The global and regional myocardial work parameters are associated with CRT response in CRT candidates. Particularly regional myocardial work parameters appear to be promising parameters to improve selection for CRT of patients with HFrEF.
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