Baroreflex sensitivity, heart rate, and blood pressure variability in hypertensive pregnancy disorders
نویسندگان
چکیده
منابع مشابه
Heart rate variability and baroreflex sensitivity in idiopathic dilated cardiomyopathy.
OBJECTIVE To examine the relation between cardiac autonomic tone, assessed by baroreflex sensitivity and heart rate variability, and left ventricular function, arrhythmias on Holter monitoring, and clinical variables in patients with idiopathic dilated cardiomyopathy. DESIGN A prospective observational study. PATIENTS 160 patients with idiopathic dilated cardiomyopathy and preserved sinus r...
متن کاملDaily profile of baroreflex sensitivity and the variability of blood pressure in essential hypertensive patients.
1. We have monitored intra-arterial pressure continuously throughout the day and analysed every beat by computer. 2. Baroreflex sensitivity (ms/mmHg) was measured four times a day (07.00, 12.00, 17.00 and 20.00 hours) in seven patients and three times a day (07.00, 12.00 and 17.00 hours) in 23 patients. The diurnal variation of baroreflex sensitivity in individual patients was 0--5.3 ms/mmHg an...
متن کاملAdvanced analysis of spontaneous baroreflex sensitivity, blood pressure and heart rate variability in patients with dilated cardiomyopathy.
Baroreflex sensitivity (BRS) is an important parameter in the classification of patients with reduced left ventricular function. This study aimed at investigating BRS in patients with dilated cardiomyopathy (DCM) and in healthy subjects (controls), as well as comparing the values of BRS parameters with parameters of heart rate variability (HRV) and blood pressure variability (BPV). ECG, continu...
متن کاملEffect of heavy exercise on spectral baroreflex sensitivity, heart rate, and blood pressure variability in well-trained humans.
The aim of the study was to assess the instantaneous spectral components of heart rate variability (HRV) and systolic blood pressure variability (SBPV) and determine the low-frequency (LF) and high-frequency baroreflex sensitivity (HF-BRS) during a graded maximal exercise test. The first hypothesis was that the hyperpnea elicited by heavy exercise could entail a significant increase in HF-SBPV ...
متن کاملFrequency-dependent baroreflex modulation of blood pressure and heart rate variability in conscious mice.
The goal of this study was to determine the baroreflex influence on systolic arterial pressure (SAP) and pulse interval (PI) variability in conscious mice. SAP and PI were measured in C57Bl/6J mice subjected to sinoaortic deafferentation (SAD, n = 21) or sham surgery (n = 20). Average SAP and PI did not differ in SAD or control mice. In contrast, SAP variance was enhanced (21 +/- 4 vs. 9.5 +/- ...
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ژورنال
عنوان ژورنال: Journal of Human Hypertension
سال: 2004
ISSN: 0950-9240,1476-5527
DOI: 10.1038/sj.jhh.1001730