Document Detail


Transesophageal echocardiography values for left ventricular end-diastolic area and pulmonary vein and mitral inflow Doppler velocities in patients undergoing coronary artery bypass graft surgery.
MedLine Citation:
PMID:  10794328     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To determine left ventricular end-diastolic area (EDA) and pulmonary vein and mitral inflow Doppler velocities in patients undergoing coronary artery bypass graft (CABG) surgery using transesophageal echocardiography (TEE). To examine the effects of age, sex, and left ventricular function on these values. DESIGN: Prospective observational study; all measurements performed before cardiopulmonary bypass. SETTING: Tertiary referral teaching hospital. PARTICIPANTS: Eighty-six elective CABG surgery patients. INTERVENTIONS: Intraoperative TEE was performed in all patients. MEASUREMENTS AND MAIN RESULTS: The left ventricular EDA was measured at the midpapillary level, excluding the papillary muscles. Mean EDA for patients with normal left ventricular function, defined by fractional area change (FAC) 0.50 or greater, was 10.66 cm2 and when indexed to body surface area was 5.6 cm2/m2. The EDA was greater in patients with impaired left ventricular function (FAC < 0.50). Mean EDA was 14.84 cm2, and EDA/body surface area was 7.8 cm2/m2. In patients with FAC 0.50 or greater, mean peak pulmonary vein Doppler velocities were 46.10 cm/sec (systole), 31.71 cm/sec (diastole), and 1.50 (ratio systole to diastole). Mean peak mitral inflow Doppler velocities were 57.25 cm/sec (early diastole), 57.21 cm/sec (late diastole), and 1.10 (ratio early to late), and deceleration time was 216 msec. Age, sex, and left ventricular function were not significant predictors of Doppler variables. CONCLUSIONS: Values are presented for a predominantly white population undergoing cardiac surgery. Left ventricular dysfunction is associated with increased left ventricular EDA measurements.
Authors:
C F Royse; M J Barrington; A G Royse
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of cardiothoracic and vascular anesthesia     Volume:  14     ISSN:  1053-0770     ISO Abbreviation:  J. Cardiothorac. Vasc. Anesth.     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-06-30     Completed Date:  2000-06-30     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9110208     Medline TA:  J Cardiothorac Vasc Anesth     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  130-2     Citation Subset:  IM    
Affiliation:
Department of Anaesthesiology, The Royal Melbourne Hospital, Victoria, Australia.
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MeSH Terms
Descriptor/Qualifier:
Aged
Anesthesia
Coronary Artery Bypass / methods*
Echocardiography, Doppler
Echocardiography, Transesophageal*
Female
Humans
Male
Middle Aged
Mitral Valve / physiology*,  ultrasonography
Prospective Studies
Pulmonary Veins / physiology*,  ultrasonography
Ventricular Function, Left / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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