Systemic arterial hypertension in hypertrophic cardiomyopathy patients was associated with lower left ventricular global longitudinal strain compared to normotensives (-10.29% vs -12.35%, p=0.0303).
Cross-Sectional (n=45)
Does the presence of systemic arterial hypertension worsen left ventricular global longitudinal strain in patients with hypertrophic cardiomyopathy?
The association of systemic arterial hypertension with hypertrophic cardiomyopathy is linked to worse left ventricular global longitudinal strain, indicating greater myocardial impairment.
Absolute Event Rate: -10.29% vs -12.35%
p-value: p=0.0303
BACKGROUND: Hypertrophic cardiomyopathy (HCM) is the most common heart disease of genetic origin in the world population, with a prevalence of at least 1/500. The association with systemic arterial hypertension (SAH) is not uncommon, as it affects approximately 25% of the world population. Most studies aim at the differential diagnosis between these diseases, but little is known about the magnitude of this association. OBJECTIVE: To compare left ventricular global longitudinal strain (GLS) in HCM patients with and without associated SAH. METHODS: Retrospective cross-sectional study that included 45 patients with HCM and preserved ejection fraction, with diagnosis confirmed by magnetic resonance imaging, including 14 hypertensive patients. Transthoracic echocardiography was performed, with emphasis on left ventricular myocardial strain analysis using GLS. In this study, p < 0.05 was considered statistically significant. RESULTS: Left ventricular strain was significantly lower in hypertensive individuals compared to normotensive individuals (-10.29 ± 2.46 vs. -12.35% ± 3.55%, p = 0.0303), indicating greater impairment of ventricular function in that group. Mean age was also significantly higher in hypertensive patients (56.1 ± 13.9 vs. 40.2 ± 12.7 years, p = 0.0001). Diastolic dysfunction was better characterized in hypertensive patients (p = 0.0242). CONCLUSION: Myocardial strain was significantly lower in the group of patients with HCM and SAH, suggesting greater impairment of ventricular function. This finding may be related to a worse prognosis with early evolution to heart failure. Prospective studies are required to confirm this hypothesis.
Gil et al. (Tue,) conducted a cross-sectional in Hypertrophic cardiomyopathy with and without systemic arterial hypertension (n=45). Systemic arterial hypertension vs. Without systemic arterial hypertension (normotensive) was evaluated on Left ventricular global longitudinal strain (GLS) (p=0.0303). Systemic arterial hypertension in hypertrophic cardiomyopathy patients was associated with lower left ventricular global longitudinal strain compared to normotensives (-10.29% vs -12.35%, p=0.0303).
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