Nonlinear parameter of heart rate variability can diagnose early cardiac autonomic neuropathy

Abstract

This is a case of a 63-year-old female presenting with diabetes mellitus, hypertension, hypothyroidism, and postmenopausal osteoporosis with findings showing abnormal AFT with reduced heart rate variability (HRV) and multiple lobed Poincaré plot, pointing to premature atrial contractions.

Keywords: autonomic function test; heart rate variability; hypertension; nonlinear Poincaré plot; premature atrial contractions.