... Pediatr. Pulmonol. 2000 29 351 358 baroreflex sensitivity congenital central hypoventilation syndrome (CCHS) heart rate variability Ondine's curse sleep vagus Poseidon, god of the Sea, placed a curse on Hans after he abandoned his daughter, and former mermaid, Ondine. Hans's...

... detrending of the time series did not significantly change the fractal dimension or approximate entropy values. We found significant differences in the analyses using heart rate versus heart period between waking up and sleep conditions for fractal dimensions, approximate entropies and absolute spectral...

...E. Heude; P. Bourgin; P. Feigel; P. Escourrou 1. The aim of the study was to assess the effect of ambulatory monitoring of blood pressure on sleep and on blood pressure in middle-aged patients. 2. Nine consecutive patients (seven men, two women; mean age 57 years) complaining of snoring and various...

...D. Pitson; N. Chhina; S. Knijn; M. van Herwaaden; J. Stradling 1. Obstructive sleep apnoea and its variants often provoke hundreds of short arousals that lead to the most important symptom, disabling hypersomnolence. The measurement of sleep in these conditions requires the documentation...

.... Measurements made on two occasions in seven subjects showed good reproducibility for the skew and M 3 100 indices. 24 5 1983 23 6 1983 © 1983 The Biochemical Society and the Medical Research Society 1983 air-flow obstruction oxygen saturation sleep Clinical Science (1983) 65, 507...

... were randomly allocated to be active or inactive. 2. Results show that blood pressure was highest during physical activity and lowest during sleep. There was no significant difference between the arterial pressures measured during the same physical activities carried out at the same time each day...

... of the normally distributed frequency histogram. 2. Variability was strongly influenced by physical activity, being least during sleep and increasing progressively with bed rest and ambulation. Variability during daytime was not related to time. 3. Systolic variability correlated directly with systolic pressure...

...T. J. B. Maling; C. T. Dollery; C. A. Hamilton 1. Blood pressure, heart rate, plasma noradrenaline and electroencephalographic variables were measured simultaneously during sleep in five healthy males before and after slow-release clonidine (300 μg orally) or placebo. 2. The blood pressure fall...

... the night, when asleep, was significantly less than during the day when awake ( P < 0.02). 3. A comparison of radioaerosol clearance before and after the time of onset of sleep demonstrates that reduced clearance occurred during sleep, indicating that this is probably a sleep-related phenomenon...

... therefore the free thyroxine concentration, varied very little with the time of day. 3. The FTI varied significantly from day to day in three of the six subjects, presumably as a result of changes in thyroxine secretion because the serum binding capacity did not vary. 4. The subjects' sleep at night...