The association of left atrial mechanics with left ventricular morphology in patients with hypertrophic cardiomyopathy: a cardiac magnetic resonance study

Küçük Resim Yok

Tarih

2023

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Int Scientific Information Inc

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

Purpose: Hypertrophic cardiomyopathy (HCM) is related with structural and pathologic changes in the left atrium (LA) and left ventricle (LV). The aim of this study was to explore the association between LA mechanics and LV charac-teristics in patients with HCM using cardiac magnetic resonance feature tracking (CMR-FT). Material and methods: A total of 76 patients with HCM and 26 healthy controls were included in the study. The pa-rameters including the extent of LV late gadolinium enhancement (LGE-%) and the LV early diastolic longitudinal strain rate (edLSR) were assessed for LV. LA conduit, booster, and reservoir functions were assessed by LA fractional volumes and strain analyses using CMR-FT. HCM patients were classified as HCM patients without LGE, with mild LGE-% (0% < LGE-% >= 10%), and prominent LGE-% (10% < LGE-%).Results: HCM patients had worse LA functions compared with the controls (p < 0.05). The majority of LA functional indices were more impaired in HCM patients with regard to LGE. LA volumes were higher in HCM patients with prominent LGE-% compared with HCM patients with mild LGE-% (p < 0.05). However, only a minority of LA functional parameters differed between the 2 groups. LA strain parameters showed weak to modest correlations with LV LGE-% and LV edLSR.Conclusions: LV characteristics, to some extent, influence LA mechanics, but they might not be the only factor induc-ing LA dysfunction in patients with HCM.

Açıklama

Anahtar Kelimeler

Cardiac Magnetic Resonance, Hypertrophic Cardiomyopathy, Left Atrium, Late Gadolinium Enhancement

Kaynak

Polish Journal of Radiology

WoS Q Değeri

N/A

Scopus Q Değeri

N/A

Cilt

88

Sayı

Künye