Diagnostic value of electrocardiogram to apical hypertrophic cardiomyopathy
Sun Yawen
Hu Yongcun
Guo Shanling
Liu Gang
Abstract：Objective To discuss the diagnostic value of electrocardiogram (ECG) to apical hypertrophic cardiomyopathy (AHCM) through analyzing retrospectively the characteristics of 12-lead ECG in AHCM patients. Methods AHCM patients (n=60) were chosen into observation group and meanwhile normal controls (n=50) were chosen into control group from Dec. 2014 to Dec. 2016. All groups were given examination of 12-lead ECG, and the results were retrospectively analyzed. The changes of ECG were compared between 2 groups including QRS wave group, ST-segment level and T wave shape.Results In observation group, ECG showed the inversion of chest-lead T wave with ST-segment depression and left ventricular high voltage. The time of chest-lead QRS wave group was longer and amplitude of QRS wave group had significant changes, and they all exceeded normal values. ST-segment showed depressions of V3～V6, Ⅱ, Ⅲ and aVF, and there were 42 patients with V3-V6 T wave inversion. The voltage of left chest-lead R wave increased, ST-segment depressed (>0.05 mV), and T wave showed symmetry inversion. The height of left chest-lead R wave was negatively correlated to depth of T wave inversion and depth of ST-segment depression (P<0.05). The depth of T wave inversion was positively correlated to depth of ST-segment depression (allP<0.01).Conclusion ECG diagnosis is important to guide AHCM diagnosis. The early ECG examination can promote confirmed diagnostic rate in AHCM patients.
Keywords：ElectrocardiogramApical hypertrophic cardiomyopathyST-T change
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：2( 1528-1529 )