Transesophageal Doppler devices: A technical review.
Monitoring of aortic blood flow, conducting large portions of the cardiac output (CO), allows conclusions on the global hemodynamic status of patients. For this purpose, transesophageal Doppler (TED) devices have been developed, which interrogate the descending aorta and calculate aortic blood flow...
| Publicado en: | Journal of Clinical Monitoring & Computing Vol. 23; no. 6; pp. 391 - 402 |
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| Autores principales: | , , , , , |
| Formato: | research review Journal Article |
| Publicado: |
Springer Nature
Dec2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105294032&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105294032 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13871307 OHC jtl: Journal of Clinical Monitoring & Computing issn: 13871307 maglogo: N pubinfo: dt: Dec2009 vid: 23 iid: 6 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 105294032 NLM19842049 2010537308 10.1007/s10877-009-9204-x NLM19842049 105294032 ppf: 391 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Transesophageal Doppler devices: A technical review. aug: au: Schober P Loer SA Schwarte LA Schober, Patrick Loer, Stephan A Schwarte, Lothar A affil: Department of Anesthesiology, VU University Medical Center, Amsterdam, The Netherlands sug: subj: Echocardiography, Transesophageal Equipment and Supplies Intraoperative Monitoring Equipment and Supplies Ultrasonography, Doppler Equipment and Supplies Aorta Physiology Cardiac Output Physiology Hemodynamics Physiology Blood Circulation Physiology ab: Monitoring of aortic blood flow, conducting large portions of the cardiac output (CO), allows conclusions on the global hemodynamic status of patients. For this purpose, transesophageal Doppler (TED) devices have been developed, which interrogate the descending aorta and calculate aortic blood flow velocity using the Doppler principle. The recorded velocity-time curve can be used to estimate CO as well other advanced hemodynamic parameters such as preload, afterload and myocardial contractility. Clinical studies in perioperative patients have demonstrated a reduced postoperative morbidity and shorter length of hospital stay when TED is used to guide fluid management. However, several assumptions are needed to translate the measured Doppler frequency shift to hemo- dynamic variables and discrepancies between the assumed and the actual condition may introduce a considerable risk for erroneous calculations. A correct interpretation of the displayed parameters requires profound knowledge on the technical basis of this method as well as its technical limitations. Our review focuses on these technical aspects which the clinician should be familiar with to allow proper use of TED monitoring devices. pubtype: Academic Journal doctype: research review Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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