Nonlinear dynamics of the cardiovascular parameters in sleep and sleep apnea. In memory of Alberto Malliani (1935-2006)--a brave heart and beautiful mind.

The aim of our study was to characterize the dynamics of heart rate variability (HRV) during sleep in healthy subjects and in patients with obstructive sleep apnea syndrome (OSAS). Present results were compared with earlier data obtained in healthy subjects (1) performing intermittent voluntary apneas. Power spectra in low (LF) and high (HF) frequency band… CONTINUE READING