GHRH and cardiac arrhythmia: We divided patients who underwent GHRH testing into those with diastolic dysfunction, atrial and ventricular dilatation, and history of arrhythmia (HD group, 9 patients, mean age 35.5±10.4 years, and BMI 22.4±2.5 Kg/m2) and patients without structural and functional cardiac anomalies by echocardiography (non-HD, 12 patients, mean age 32.6±12 years, and BMI 22±3.04 Kg/m2) (Table 2).