| Noninvasive blood pressure measurement by the Nexfin monitor during reduced arterial pulsatility: a feasibility study. | |
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MedLine Citation:
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PMID: 20449896 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Noninvasive blood pressure measurements are difficult when arterial pulsations are reduced, as in patients supported by continuous flow left ventricular assist devices (cf-LVAD). We evaluated the feasibility of measuring noninvasive arterial blood pressure with the Nexfin monitor during conditions of reduced arterial pulsatility. During cardiopulmonary bypass(CPB) in which a roller pump based or a centrifugal pump based heart-lung machine generated arterial blood pressure with low pulsatility, noninvasive arterial pressures (NAP)measured by the Nexfin Monitor were recorded and compared with invasively measured radial artery pressures (IAP).We also evaluated NAP in 10 patients with a cf-LVAD during a pump speed change procedure (PSCP). During CPB in 18 patients, the NAP-IAP average difference was -1.3 +/- 6.5 mmHg. The amplitude of pressure oscillations were 4.3 +/- 3.8 mmHg measured by IAP. Furthermore, in the cf-LVAD patients, increase in pump speed settings led to an increase in diastolic and mean arterial pressures (MAP) while the NAP acquired a sinusoidal shape as the aortic valve become permanently closed. In conclusion, NAP was similar to IAP under conditions of reduced arterial pulsatility. The device also measured the blood pressure waveform noninvasively in patients supported by a cf-LVAD. |
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Authors:
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Jerson R Martina; Berend E Westerhof; Jeroen Van Goudoever; Nicolaas De Jonge; Johannes J Van Lieshout; Jaap R Lahpor; Bas A J M De Mol |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: ASAIO journal (American Society for Artificial Internal Organs : 1992) Volume: 56 ISSN: 1538-943X ISO Abbreviation: ASAIO J. Publication Date: 2010 May-Jun |
Date Detail:
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Created Date: 2010-05-06 Completed Date: 2010-08-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9204109 Medline TA: ASAIO J Country: United States |
Other Details:
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Languages: eng Pagination: 221-7 Citation Subset: IM |
Affiliation:
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Department of Cardiothoracic Surgery, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. jmartina@umcutrecht.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Arteries Blood Pressure / physiology* Cardiopulmonary Bypass Diastole Feasibility Studies Female Heart-Assist Devices* Heart-Lung Machine Humans Male Middle Aged Radial Artery |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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