2.1 Patients
This study is a retrospective cohort analysis. Patients who were
diagnosed with hypertrophic cardiomyopathy at the First Affiliated
Hospital of Sun Yat-sen University from March 2014 to March 2019 were
included . The criteria of inclusion into the study were 1) age
> 18 years; 2) diagnosis of HCM according to the European
Society of Cardiology (ESC) Guidelines [10]. The exclusion criteria
for the study were : 1)incomplete information; 2)Lost to follow-up; 3)
Left ventricular hypertrophy contributed by other disease like
hypertension, aortic stenosis and congenital subaortic diaphragm, etc.
All participants provided written informed. This study was consistent
with the Declaration of Helsinki, and was approved by our hospital
ethics committee.