Search results for "baroreceptors"

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Baroreflex control of heart rate during sleep in severe obstructive sleep apnoea: effects of acute CPAP

2006

Baroreflex control of heart rate during sleep (baroreflex sensitivity; BRS) has been shown to be depressed in obstructive sleep apnoea (OSA), and improved after treatment with continuous positive airway pressure (CPAP). Whether CPAP also acutely affects BRS during sleep in uncomplicated severe OSA is still debatable. Blood pressure was monitored during nocturnal polysomnography in 18 patients at baseline and during first-time CPAP application. Spontaneous BRS was analysed by the sequence method, and estimated as the mean sequence slope. CPAP did not acutely affect mean blood pressure or heart rate but decreased cardiovascular variability during sleep. Mean BRS increased slightly during CPAP…

AdultMalePulmonary and Respiratory MedicineBaroreceptorPolysomnographymedicine.medical_treatmentPositive pressureBaroreflexHeart RateHeart rateHumansMedicineContinuous positive airway pressureMechanical ventilationAnalysis of VarianceSleep Apnea ObstructiveContinuous Positive Airway Pressurebusiness.industryBaroreflexMiddle Agedrespiratory tract diseasesMean blood pressureBlood pressurebaroreceptors blood pressure hypoxia positive intrathoracic pressure sleepAnesthesiaLinear ModelsMED/09 - MEDICINA INTERNAbusinesscirculatory and respiratory physiologyEuropean Respiratory Journal
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Effects of acute CPAP application on baroreflex control of heart rate during sleep in severe obstructive sleep apnea.

2006

Baroreflex control of heart rate during sleep (baroreflex sensitivity; BRS) has been shown to be depressed in obstructive sleep apnoea (OSA), and improved after treatment with continuous positive airway pressure (CPAP). Whether CPAP also acutely affects BRS during sleep in uncomplicated severe OSA is still debatable. Blood pressure was monitored during nocturnal polysomnography in 18 patients at baseline and during first-time CPAP application. Spontaneous BRS was analysed by the sequence method, and estimated as the mean sequence slope. CPAP did not acutely affect mean blood pressure or heart rate but decreased cardiovascular variability during sleep. Mean BRS increased slightly during CPAP…

Settore MED/10 - Malattie Dell'Apparato RespiratorioBaroreceptors blood pressure hypoxia positive intrathoracic pressure sleep
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