» Articles » PMID: 35834158

The Value of Cardiac Sympathetic Activity and Mechanical Dyssynchrony As Cardiac Resynchronization Therapy Response Predictors: Comparison Between Patients with Ischemic and Non-ischemic Heart Failure

Overview
Journal J Nucl Cardiol
Date 2022 Jul 14
PMID 35834158
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Impaired cardiac sympathetic activity and mechanical dyssynchrony (MD) are associated with poor prognosis in patients with heart failure (HF) after cardiac resynchronization therapy (CRT). The study aims to assess the significance of scintigraphic evaluation of cardiac sympathetic innervation and contractility in predicting response to CRT in patients with ischemic and non-ischemic chronic HF.

Methods And Results: The study includes 58 HF patients, who were referred for CRT. Prior to CRT all patients underwent I-metaiodobenzylguanidine (I-MIBG) imaging and gated myocardial perfusion imaging (MPI) using a cadmium-zinc-telluride (CZT) SPECT/CT device. At a one-year follow-up post-CRT, the delayed heart-to-mediastinum I-MIBG uptake ratio was an independent predictor of CRT response in non-ischemic HF patients (OR 1.469; 95% CI 1.076-2.007, p = .003). In ischemic HF patients the MD index histogram bandwidth (HBW) obtained by CZT-gated MPI had a predictive value (OR 1.06, 95% CI 1.001-1.112, p = .005) to CRT response.

Conclusion: CRT response can be predicted by cardiac I-MIBG scintigraphy, specifically by the heart-to-mediastinum ratio in non-ischemic HF and by the MD index HBW in ischemic HF. These results suggest the value of a potentially useful algorithm to improve outcomes in HF patients who are candidates for CRT.

Citing Articles

Iodine-123 Metaiodobenzylguanidine (I-123 MIBG) in Clinical Applications: A Comprehensive Review.

Chang M, Peng C, Chen C, Shih Y, Chen J, Tai Y Pharmaceuticals (Basel). 2025; 17(12.

PMID: 39770405 PMC: 11676292. DOI: 10.3390/ph17121563.


The Value of Stress-Gated Blood Pool SPECT in Predicting Early Postoperative Period Complications in Ischemic Cardiomyopathy Patients: Focus on Mechanical Dyssynchrony.

Shipulin V, Andreev S, Kopeva K, Shipulin V, Zavadovsky K J Clin Med. 2023; 12(16).

PMID: 37629370 PMC: 10455889. DOI: 10.3390/jcm12165328.

References
1.
Cleland J, Freemantle N, Erdmann E, Gras D, Kappenberger L, Tavazzi L . Long-term mortality with cardiac resynchronization therapy in the Cardiac Resynchronization-Heart Failure (CARE-HF) trial. Eur J Heart Fail. 2012; 14(6):628-34. DOI: 10.1093/eurjhf/hfs055. View

2.
Tang A, Wells G, Talajic M, Arnold M, Sheldon R, Connolly S . Cardiac-resynchronization therapy for mild-to-moderate heart failure. N Engl J Med. 2010; 363(25):2385-95. DOI: 10.1056/NEJMoa1009540. View

3.
Cleland J, Daubert J, Erdmann E, Freemantle N, Gras D, Kappenberger L . The effect of cardiac resynchronization on morbidity and mortality in heart failure. N Engl J Med. 2005; 352(15):1539-49. DOI: 10.1056/NEJMoa050496. View

4.
Kirkfeldt R, Johansen J, Nohr E, Jorgensen O, Nielsen J . Complications after cardiac implantable electronic device implantations: an analysis of a complete, nationwide cohort in Denmark. Eur Heart J. 2013; 35(18):1186-94. PMC: 4012708. DOI: 10.1093/eurheartj/eht511. View

5.
Esler M, Kaye D, Lambert G, Esler D, Jennings G . Adrenergic nervous system in heart failure. Am J Cardiol. 1997; 80(11A):7L-14L. DOI: 10.1016/s0002-9149(97)00844-8. View