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Responsiveness of Noninvasive Continuous Cardiac Output Monitoring During the Valsalva Maneuver

Delaney, Lori; Bellomo, R.; Van Haren, Frank

Description

To describe the baseline hemodynamic variables and response time of hemodynamic changes associated with the Valsalva maneuver using noninvasive continuous cardiac output monitoring (Nexfin). Hemodynamic monitoring provides an integral component of advanced clinical care and the ability to monitor response to treatment interventions. The emergence of noninvasive hemodynamic monitoring provides clinicians with an opportunity to monitor and assess patients rapidly with ease of implementation....[Show more]

dc.contributor.authorDelaney, Lori
dc.contributor.authorBellomo, R.
dc.contributor.authorVan Haren, Frank
dc.date.accessioned2020-01-24T01:36:03Z
dc.identifier.issn1054-7738
dc.identifier.urihttp://hdl.handle.net/1885/199631
dc.description.abstractTo describe the baseline hemodynamic variables and response time of hemodynamic changes associated with the Valsalva maneuver using noninvasive continuous cardiac output monitoring (Nexfin). Hemodynamic monitoring provides an integral component of advanced clinical care and the ability to monitor response to treatment interventions. The emergence of noninvasive hemodynamic monitoring provides clinicians with an opportunity to monitor and assess patients rapidly with ease of implementation. However, the responsiveness of this method in tracking dynamic changes that occur has not been fully elucidated. A prospective observational study was conducted involving 44 healthy volunteers (age = 38 ±12 years). Participants performed a Valsalva maneuvers to illicit dynamic changes in blood pressure, cardiac output, cardiac index, systemic vascular resistance index (SVRI), and stroke volume. Changes in these hemodynamic parameters were monitored while performing repeated standardized Valsalva maneuvers. Baseline hemodynamic values were obtained in all 44 participants, and showed an interaction with age, accompanying a significant decline in cardiac index (r = –.66, p < .05) and stroke volume (r = –.68,p < .05), and an increase in SVRI (r = .67, p < .05) with increasing age. The Valsalva maneuver, performed in 20 participants, resulted in a change of 10% from baseline blood pressure and cardiac index, which was detected within 4.53 s (SD = 4.36) and 3.31 s (SD = 2.21), respectively. Noninvasive continuous cardiac monitoring demonstrated the ability to rapidly detect logical and predictable hemodynamic changes. These observations suggest that such Nexfin technology may have useful clinical applications.
dc.description.sponsorshipThis study was funded by the Canberra Hospital Foundation and via in-kind support from the Edwards Lifesciences.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherSAGE Publications
dc.rights© 2018 The Author(s)
dc.sourceClinical Nursing Research
dc.subjecthaemodynamic monitoring
dc.subjectcardiac monitoring
dc.subjectadults
dc.subjectValsalva maneuver
dc.subjectnoninvasive monitoring
dc.titleResponsiveness of Noninvasive Continuous Cardiac Output Monitoring During the Valsalva Maneuver
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolumeOnline
dc.date.issued2018-03-07
local.identifier.absfor110310 - Intensive Care
local.identifier.ariespublicationa383154xPUB9529
local.publisher.urlhttps://journals.sagepub.com
local.type.statusPublished Version
local.contributor.affiliationDelaney, Lori, Non-ANU institution, The Canberra Hospital
local.contributor.affiliationBellomo, R., Austin Hospital
local.contributor.affiliationVan Haren, Frank, College of Health and Medicine, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage14
local.identifier.doi10.1177/1054773818762878
local.identifier.absseo920199 - Clinical Health (Organs, Diseases and Abnormal Conditions) not elsewhere classified
dc.date.updated2020-11-22T07:19:08Z
local.identifier.scopusID2-s2.0-85043322229
CollectionsANU Research Publications

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