PMID- 15105193
OWN - NLM
STAT- MEDLINE
DCOM- 20040519
LR  - 20190704
IS  - 0003-2999 (Print)
IS  - 0003-2999 (Linking)
VI  - 98
IP  - 5
DP  - 2004 May
TI  - Automated cardiac output measurement by transesophageal color Doppler 
      echocardiography.
PG  - 1232-8, table of contents
AB  - Automated cardiac output measurement (ACOM), which integrates digital color 
      Doppler velocities in space and in time, has been validated using transthoracic 
      echocardiography but has not been tested using transesophageal echocardiography 
      (TEE). Therefore, we determined the feasibility of the ACOM method by TEE in 36 
      patients undergoing cardiovascular surgery. Regions of interest for ACOM were 
      placed within a color sector across the main pulmonary artery (PA), the mitral 
      annulus, and the left ventricular outflow tract. Cardiac output was determined 
      from the PA flow, the mitral flow, and the left ventricular ejection flow at each 
      view using the ACOM method. We compared measurements of cardiac output derived 
      from the ACOM method with measurements simultaneously obtained by thermodilution 
      (TD). In the mitral flow analysis, the values derived from ACOM correlated well 
      with those from TD (R(2) = 0.85; mean difference = 0.01 +/- 0.58 L/min in the 
      2-chamber view; R(2) = 0.78; mean difference = -0.10 +/- 0.68 L/min in the 
      4-chamber view). In the PA flow analysis, the values derived from ACOM did not 
      correlate with those from TD (R(2) = 0.30). In the left ventricular outflow tract 
      analysis, it was very difficult to obtain the optimal view (44%) in which color 
      Doppler flow signals adequately appeared. Using the ACOM method, we obtained good 
      correlation and agreement for cardiac output measurements in the mitral flow 
      analysis compared with TD. The ACOM method is a practical and rapid method to 
      measure cardiac output by TEE analysis of mitral flow. IMPLICATIONS: Automated 
      cardiac output measurement by transesophageal color Doppler echocardiography is a 
      practical and rapid method to measure cardiac output. This technique is a 
      promising new approach to echocardiographic quantification in the intraoperative 
      setting.
FAU - Akamatsu, Shigeru
AU  - Akamatsu S
AD  - Department of Anesthesiology and Critical Care Medicine, Gifu University School 
      of Medicine, Gifu City, Gifu 500-8705, Japan. akamatsu@cc.gifu-u.ac.jp
FAU - Oda, Akiyoshi
AU  - Oda A
FAU - Terazawa, Etsuji
AU  - Terazawa E
FAU - Yamamoto, Takuji
AU  - Yamamoto T
FAU - Ohata, Hiroto
AU  - Ohata H
FAU - Michino, Tomohiro
AU  - Michino T
FAU - Dohi, Shuji
AU  - Dohi S
LA  - eng
PT  - Clinical Trial
PT  - Journal Article
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Anesth Analg
JT  - Anesthesia and analgesia
JID - 1310650
SB  - IM
MH  - Aged
MH  - Automation
MH  - *Cardiac Output/physiology
MH  - *Cardiovascular Surgical Procedures
MH  - Double-Blind Method
MH  - Echocardiography, Transesophageal/*methods
MH  - Electrocardiography
MH  - Female
MH  - Hemodynamics/physiology
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Mitral Valve/diagnostic imaging/physiology
MH  - Monitoring, Intraoperative/*methods
EDAT- 2004/04/24 05:00
MHDA- 2004/05/20 05:00
CRDT- 2004/04/24 05:00
PHST- 2004/04/24 05:00 [pubmed]
PHST- 2004/05/20 05:00 [medline]
PHST- 2004/04/24 05:00 [entrez]
AID - 10.1213/01.ane.0000112314.94283.24 [doi]
PST - ppublish
SO  - Anesth Analg. 2004 May;98(5):1232-8, table of contents. doi: 
      10.1213/01.ane.0000112314.94283.24.