Photoplethysmogram's Amplitude is Well Correlated with Beat-By-Beat Changes in Arterial Blood Pressure
نویسندگان
چکیده
منابع مشابه
Simultaneous measurement of beat-to-beat carotid diameter and pressure changes to assess arterial mechanical properties.
Use of local arterial distensibility measurements by change in carotid artery diameter divided by pulse pressure has limitations because blood pressure is often taken in a vessel distant or at a time different from where and when change in diameter is taken. In 92 subjects (23 to 91 years of age), carotid artery diameter was continuously measured ecographically, whereas blood pressure was conti...
متن کاملExternal Counterpulsation Reduces Beat-to-Beat Blood Pressure Variability When Augmenting Blood Pressure and Cerebral Blood Flow in Ischemic Stroke
BACKGROUND AND PURPOSE External counterpulsation (ECP) is a noninvasive method used to enhance cerebral perfusion by elevating the blood pressure in ischemic stroke. However, the response of the beat-to-beat blood pressure variability (BPV) in ischemic stroke patients during ECP remains unknown. METHODS We enrolled recent ischemic stroke patients and healthy controls. Changes in the blood flo...
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BACKGROUND Obstructive sleep apnoea, and possibly snoring, are associated with a poorly understood increase in cardiovascular mortality which may be explained by their effects on systemic blood pressure during sleep. This study compares changes in mean blood pressure during obstructive sleep apnoea and snoring without apnoeas with those in matched control subjects during non-REM sleep. METHOD...
متن کاملEffect of midazolam on transfer function between beat-to-beat arterial pressure and inter-beat interval length.
Arterial pressure (AP) and inter-beat interval (IBI) length are under autonomic nervous system control. The control mechanisms can be investigated by transfer function analysis. It is not known if this type of analysis may be helpful in monitoring depth of sedation. In an open-label, uncontrolled investigation, the effect of midazolam on the transfer function between AP and IBI, and on spectral...
متن کاملHead-up-tilt testing in children: new perspectives using beat-to-beat blood-pressure monitoring
The head-up-tilt-test in pediatric patients for the evaluation of syncope shows a sensitivity of 35-85% and often requires pharmacological stimulation in order to improve its diagnostic value. We used a new device for beat-to-beat blood pressure monitoring combined with impedance cardiography in a 12-year-old girl during tilt testing. A seven seconds asystolia was provoked. The haemodynamic par...
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ژورنال
عنوان ژورنال: Clinical Medical Reviews and Case Reports
سال: 2021
ISSN: 2378-3656
DOI: 10.23937/2378-3656/1410338