Coronary sinus size and ischemia improvement after reducer implantation; "one size to fit them all?"
cardiac magnetic resonance
coronary sinus reducer
myocardial ischemia
non-responders
refractory angina
Journal
Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
ISSN: 1522-726X
Titre abrégé: Catheter Cardiovasc Interv
Pays: United States
ID NLM: 100884139
Informations de publication
Date de publication:
09 2021
09 2021
Historique:
revised:
29
01
2021
received:
07
04
2020
accepted:
19
03
2021
pubmed:
15
4
2021
medline:
21
10
2021
entrez:
14
4
2021
Statut:
ppublish
Résumé
Coronary sinus (CS) reducer implantation is associated with symptomatic relief of patients with refractory angina. However, 15% to 30% of the patients do not respond to this treatment. Aim if this study was to evaluate the effect of CS size in the effectiveness of the device. Prior to device implantation and at 4-month resting ventricular function was assessed by stress cardiac magnetic resonance. Ischemia was assessed by the myocardial perfusion reserve index (MPRI). Fifteen patients (66 ± 10 years) underwent successful CS Reducer implantation, with improvements in angina class and exercise tolerance. Patients with a smaller CS size (<5.8 mm) presented a significantly higher percentage increase in MPRI (63 ± 51 vs 9 ± 30%, P = .03) and a higher reduction in left ventricle end-diastolic volumes. Greater benefits, in terms of ischemia improvement, after CS Reducer implantation were seen in patients with smaller CS sizes, suggesting a potential mechanism underlying the observed rates of reducer non-responsiveness.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
E365-E369Informations de copyright
© 2021 Wiley Periodicals LLC.
Références
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