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March 28, 2025EP EuropaceOpen Access

Tissue characterization using cardiac magnetic resonance imaging and response to cardiac resynchronization therapy

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Why the study?

This study aimed to assess the prognostic value of CMR-based tissue characterization in predicting response to CRT in patients with non-ischaemic cardiomyopathy.

Do CMR-based tissue parameters predict response to cardiac resynchronization therapy in patients with non-ischaemic cardiomyopathy?

Population

101 NICM patients before CRT implantation

Comparison

CRT responders vs CRT non-responders

Design

Retrospective analysis

Key result

CMR-based tissue parameters, specifically LGE burden ≤20% (OR 22.61; 95% CI 4.73-176.68; P<0.001), ECV ≤34%, and T2 ≤45 ms, independently predicted good response to cardiac resynchronization therapy.

Authors

SKSe-Eun KimJOJaewon OhYHYoo Jin Hong

Discussion

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Overview

May aid CRT selection via CMR in non-ischaemic cardiomyopathy; leaves open prospective validation.

Study Design

Type

Cohort (n=101)

Structured PICO

Do CMR-based tissue parameters predict response to cardiac resynchronization therapy in patients with non-ischaemic cardiomyopathy?

P
Population
101 patients with non-ischaemic cardiomyopathy (NICM) before cardiac resynchronization therapy (CRT) implantation, mean age 66 years, 52.5% male.
I
Intervention
Cardiac magnetic resonance (CMR) imaging for tissue characterization (LGE, native T1, T2, and ECV)
O
Outcome
Response to cardiac resynchronization therapy (CRT) and clinical outcomessurrogate

Main Result

Effect estimate: OR 22.61 (95% CI 4.73-176.68)

p-value: p=<0.001

CMR-based tissue parameters, including LGE burden, ECV, and T2, effectively predict CRT response and clinical outcomes in patients with non-ischaemic cardiomyopathy.

Cite This Study

Kim et al. (2025) conducted a cohort in Non-ischaemic cardiomyopathy (NICM) (n=101). Cardiac magnetic resonance (CMR) imaging was evaluated on Response to cardiac resynchronization therapy (CRT) (OR 22.61, 95% CI 4.73-176.68, p=<0.001). CMR-based tissue parameters, specifically LGE burden ≤20% (OR 22.61; 95% CI 4.73-176.68; P<0.001), ECV ≤34%, and T2 ≤45 ms, independently predicted good response to cardiac resynchronization therapy.

synapsesocial.com/papers/6a11c63235a4eec8fedcd04ahttps://doi.org/10.1093/europace/euaf043
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