| The (dP/dt)max derived from arterial pulse waveforms during 24 h blood pressure oscillometric recording. | |
| | |
MedLine Citation:
|
PMID: 10212356 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BACKGROUND: The modern developments in engineering allow one to record the speed at which the blood pressure rises on the advancing pulse wave front. It was possible to obtain this through the conversion of a conventional pulse from a single suprasystolic oscillation to the oscillometric envelope into its first derivative with respect to time. OBJECTIVE: The aim of this study was to report a preliminary comparison between healthy subjects and patients with heart failure as a first step towards the clinical ujse of this first derivative of a time-dependent function (dP/dt).METHODS: For 10 normal healthy subjects (aged 37 +/- 5 yhears) and five subjects with ischaemic cardiomyopathy (aged 41 +/- 7 years), whose ejection fractions (invasively assessed) wee < 40%, we evaluated six sequential oscillometric measurements of blood pressure obtain by using a Dynapulse Ps5000 (Pulse Metric, San Diego, California, USA) device, which simultaneously records blood pressure and analyses every arterial waveform. The mean and SD of (dP/dt)max for each subject were calculated, together with the relative mean distribution and the significance of the differences. RESULTS: The data show that (dP/dt)max of subjects with an impairment of cardiac function is less than normal. The mean (dP/dt)max of normalk subjects was significantly different (P < 0.05) from that of patients with ischaemic cardiomyopathy and lower than normalk ejection fractions. CONCLUSION: These preliminary results allowed us to raise the hypothesis that this parameter, being representative of the cardiac function, because many data are obtained, is extremely useful for monitoring changes during daily activities or to outline the nycthoemeral rhythm. We have to test the hypotheses that the analyses of the correlations between (dP/dt)max and other haemodynamic parameters may be used in the pathphysiological study of cardiomyopathies and that the comparison of differences in (dP/dt)max can be used in the evaluation of the effects of the treatment. |
| | |
Authors:
|
Germanò; Angotti; Muscolo; D'Auria; Giordano |
Related Documents
:
|
2632906 - Decreases in left ventricular contractility during endotoxin shock in rabbits. 22644526 - The stability of almond β-glucosidase during combined high pressure-thermal processing... 2419676 - Acute hemodynamic effects of a new positive inotropic agent, 3,4-dihydro-6-[4-(3,4-dime... 2767116 - Acute haemodynamic effects of ibopamine and dopamine on isovolumic relaxation. 21914986 - Clinical blood pressure measurement verification when comparing a tensoval duo control ... 871106 - Hemodynamics at rest and during supine and sitting bicycle exercise in patients with co... |
Publication Detail:
|
Type: JOURNAL ARTICLE |
Journal Detail:
|
Title: Blood pressure monitoring Volume: 3 ISSN: 1473-5725 ISO Abbreviation: Blood Press Monit Publication Date: 1998 Jun |
Date Detail:
|
Created Date: 1999-04-22 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9606438 Medline TA: Blood Press Monit Country: - |
Other Details:
|
Languages: ENG Pagination: 213-216 Citation Subset: - |
Affiliation:
|
Clinica Medica, Università 'La Sapienza', Rome Italy. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Automated blood pressure measurement: state of the market in 1998 and the need for an international ...
Next Document: The placebo effect in ambulatory blood pressure monitoring.