Blood pressure monitoring
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Blood pressure monitoring · Aug 2010
Meta AnalysisAmlodipine and angiotensin-converting enzyme inhibitor combination versus amlodipine monotherapy in hypertension: a meta-analysis of randomized controlled trials.
This study aimed to estimate the efficacy and tolerability of the combination of amlodipine and angiotensin-converting enzyme inhibitors as compared with amlodipine monotherapy in the treatment of hypertension. ⋯ This meta-analysis suggests that the combination treatment provides superior BP control, fewer adverse events, and better tolerability in hypertensive patients than monotherapy. Further research should explore the mechanism of the combination therapy and whether it is associated with the reduction of cardiovascular disease morbidity and mortality.
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Blood pressure monitoring · Aug 2010
The Finometer can function as a standalone instrument in blood pressure variability studies and does not require support equipment to determine breathing frequency.
The Finometer records the beat-to-beat finger pulse contour and has been recommended for research studies assessing short-term changes of blood pressure and its variability. Variability measured in the frequency domain using spectral analysis requires the impact of breathing be restricted to high frequency spectra (>0.15 Hz) so that the data from participants need to be excluded when the breathing impact occurs in the low frequency spectra (0.04-0.15 Hz). This study tested whether breathing frequency can be estimated from standard Finometer recordings using either stroke volume oscillation frequency or spectral stroke volume variability maximum scores. ⋯ Breathing frequency can be accurately derived from standard Finometer recordings using stroke volume oscillations for healthy individuals in both supine and upright postures. The Finometer can function as a standalone instrument in blood pressure variability studies and does not require support equipment to determine the breathing frequency.