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  • Title: Reversed Septal Curvature Is Associated With Nonsustained Ventricular Tachycardia in Hypertrophic Cardiomyopathy.
    Author: He Y, Zhou J.
    Journal: Am J Cardiol; 2024 Jan 01; 210():195-200. PubMed ID: 37884111.
    Abstract:
    Sudden cardiac death (SCD) is associated with nonsustained ventricular tachycardia (NSVT) in patients with hypertrophic cardiomyopathy (HCM). Recently, differences regarding septal morphology have been reported, with an increased probability of sudden death in patients with HCM who had reverse septal curvature (RSC). This study aimed to examine the relation between RSC and NSVT in HCM. A total of 138 patients with HCM were enrolled. Of 138 patients, 47 (34.1%) were diagnosed with RSC and 42 patients (30.4%) had NSVT. Compared with the non-RSC group, those with RSC were much younger and had an increased incidence of NSVT, thicker septal thickness, larger mass, and a higher proportion of HCM or SCD family history. Furthermore, patients with RSC had a higher risk of SCD according to the European Society of Cardiology calculator (2.5 [1.6 to 4.6] vs 1.6 [1.1 to 2.3] [%/5 years], p <0.001). The multivariate analysis showed that RSC was a strong and independent risk factor for NSVT (odds ratio 2.756, 95% confidence interval 1.164 to 6.525, p = 0.021). In conclusion, the presence of RSC in patients with HCM is independently associated with NSVT. Further studies are needed to evaluate the role of RSC as a risk factor for SCD in this population.
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