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Ultrasound study of right ventricular myocardial perfusion and functional changes in hypertrophic cardiomyopathy.
Cao, Shan; Yang, Lingjie; Liu, Liyun; Mu, Yuming; Guan, Lina.
Afiliación
  • Cao S; Xinjiang Key Laboratory of Ultrasound Medicine, No. 137 Li Yu Shan South Road, Urumqi, China.
  • Yang L; Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, No. 137 Li Yu Shan South Road, Urmuqi, China.
  • Liu L; Xinjiang Key Laboratory of Ultrasound Medicine, No. 137 Li Yu Shan South Road, Urumqi, China.
  • Mu Y; Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, No. 137 Li Yu Shan South Road, Urmuqi, China.
  • Guan L; Xinjiang Key Laboratory of Ultrasound Medicine, No. 137 Li Yu Shan South Road, Urumqi, China.
BMC Cardiovasc Disord ; 24(1): 63, 2024 Jan 22.
Article en En | MEDLINE | ID: mdl-38254017
ABSTRACT

BACKGROUND:

To evaluate the changes of right ventricular (RV) myocardial perfusion and function in patients with hypertrophic cardiomyopathy (HCM) by myocardial contrast echocardiography (MCE) and speckle tracking (2D-STE), and to explore the relationship between RV myocardial perfusion and strain.

METHODS:

Conventional ultrasound, MCE and 2D-STE were performed on 29 HCM patients and 21 healthy subjects to analyze RV myocardial perfusion, RV global strain, RV free wall strain, and strain of each segment. The correlation between RV myocardial perfusion and strain was further analyzed in HCM patients.

RESULTS:

MCE results showed that the regional myocardial perfusion of the RV in HCM patients was decreased. Compared with the normal control group, the mean slope (ß) in the middle and apical segments of the RV free wall, and the peak intensity (A), ß, myocardial blood flow (MBF) of the ventricular septum decreased in HCM patients (P < 0.05). RV function was impaired in HCM patients. The RV global strain (RV GLS), and the strain of RV free wall and each segment were lower than those in the normal control group (P < 0.05). Correlation analysis showed that there was a certain correlation between RV myocardial perfusion and strain, such as the ß of the whole RV in HCM group had a positive correlation with the strain of the middle segment of the interventricular septum (r = 0.550, P = 0.002).

CONCLUSIONS:

The regional myocardial perfusion and strain of the RV in HCM patients are reduced, and there is a positive correlation between them, suggesting that the reduction of myocardial strain may be related to the impairment of myocardial microcirculation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cardiomiopatía Hipertrófica Tipo de estudio: Diagnostic_studies Límite: Humans Idioma: En Revista: BMC Cardiovasc Disord Asunto de la revista: ANGIOLOGIA / CARDIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cardiomiopatía Hipertrófica Tipo de estudio: Diagnostic_studies Límite: Humans Idioma: En Revista: BMC Cardiovasc Disord Asunto de la revista: ANGIOLOGIA / CARDIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido