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https://www.selleckchem.com/products/vh298.html Patients with hypertrophic cardiomyopathy (HC) caused by compound variants have severe clinical manifestations, but significant clinical heterogeneity remains. Clinical diversity in these patients may result from different combinations of variants. We analyzed the role of cis-compound variants in a Chinese HC pedigree. Exome sequencing was performed in the proband. Identified variants were detected with bi-directional Sanger sequencing in a pedigree that comprised 3 generations and 28 family members. Follow-up was performed for 16 years. Two missense variants (c.2465T>C, p.Met822Thr; c.4258C>T, p.Arg1420Trp) were identified in the MYH7 gene. These variants were absent in our 761 in-house people without HC and predicted to be pathogenic.Both variants were detected in 11 family members, thus they were believed to inherit cis. In the 11 members, only 5 developed HC, the other 6 were asymptomatic variant carriers with an abnormal electrocardiogram. The HC members had mild hypertrophy with a maximum left ventricular wall thickness of 13 to 21 mm and showed a low incidence of cardiovascular events. In conclusion, the cis-compound variants of Met822Thr and Arg1420Trp in MYH7 are causal but relatively benign, variants associated with familial HC. This finding suggests that different types of compound variants might need to be analyzed for a genotype-phenotype study.Current knowledge on the dynamic changes of corrected QT (QTc) before, during, and after an atrial fibrillation (AF) episode is limited. It remains controversial which of the presently available formulas performs the best in calculating QTc during AF. This study was designed to explore whether an AF attack would affect QTc and to determine the performance of 6 available formulas in correcting QT before, during, and after AF. A total of 101 patients with Holter-documented paroxysmal AF were enrolled. QT interval before, during, and after AF was measured and corrected

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