Combined ECG and Intra-Arterial Blood Pressure Analysis for the Beat to Beat Evaluation of the Systolic Time Intervals in Ambulatory Patients
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The Oxford intraarterial blood pressure monitoring has been extensively used, up to now, for pathophysiological and pharmacological studies in arterial hypertension. However, all currently available methods for data analysis have been restrained to the extraction of data on blood pressure and heart rate. In order to try to explain the possibility of obtaining also a beat-to-beat evaluation of cardiac function in unrestricted patients, we developed an original computerized method for the determination of systolic time intervals by means of the combined analysis of blood pressure and electrocardiogram continuously recorded.
Preliminary results will be reported which show that intraarterial digitized systolic time intervals are able to reflect at least to some extent the known physiological changes expected after a wide spectrum of physical and pharmacological tests. However, further studies will be needed for the full validation of the preejection time by our technique.
KeywordsAmbulatory Blood Pressure Monitoring Isosorbide Dinitrate Systolic Time Interval Pharmacological Test Blood Pressure Signal
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