Determinants of the awakening rise in systemic blood pressure in XXXX .

@entity1 @entity27 @entity13519 @entity13520 @entity1224 @entity386
To investigate the factors responsible for the morning rise in blood pressure (BP) in @entity27 ( @entity27 ) we examined a group of 253 consecutive snorers or @entity27 @entity1 . On the basis of their AHI the @entity1 were classified in four groups. BP was measured on the evening before sleep onset and on the following morning after 15 min of rest by a finger arterial pressure device (Finapres). In 150 subjects BP was monitored during the night by a Finapres device. In the morning BP increased in the @entity1 group with an average difference of 9.9 +/- 0.5 mmHg for systolic ( @entity13519 ) and 9.9 +/- 0.4 mmHg for diastolic pressure ( @entity13520 ). The increase was significant in snorers and @entity27 @entity1 without differences between groups. The morning rise in @entity13519 was related to diurnal values of @entity13519 , age and AHI whereas the time spent in @entity386 and the diurnal values of @entity13520 significantly contributed to the @entity13520 increase. In the subgroup of 150 @entity1 in whom BP was analyzed during sleep, the awakening increase was related to the absolute BP value during sleep and to the BP changes from wakefulness to sleep. The magnitude of the BP changes from evening to morning was not dependent on the degree of BP variability during sleep. We conclude that the awakening increase in BP in @entity1 with snoring or @entity27 may be mediated by the setting of pressure response to @entity386 or to mechanical effort during sleep. Anthropometric variables and diurnal cardiovascular setting may play an additional role in modulating the final pressure response to upper @entity1224 .
