A Comparison of the Transoesophageal Doppler and Thermodilution Techniques for Cardiac Output Measurement in Off-Pump Coronary Artery Bypass Surgery Patients.
10.4097/kjae.2002.43.1.15
- Author:
Tae Gyoon YOON
1
;
Won Hee YUN
;
Byung Moon HAM
;
Yong Lak KIM
Author Information
1. Department of Anesthesiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. kimyl@plaza.snu.ac.kr
- Publication Type:Original Article
- Keywords:
Cardiac output;
esophageal doppler;
monitoring;
off-pump coronary artery bypass graft;
thermodilution
- MeSH:
Anesthesia;
Arteries;
Bias (Epidemiology);
Cardiac Output*;
Catheters;
Coronary Artery Bypass, Off-Pump*;
Humans;
Mammary Arteries;
Pericardium;
Pulmonary Artery;
Thermodilution*;
Thoracic Surgery
- From:Korean Journal of Anesthesiology
2002;43(1):15-19
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: The aim of this study was to compare the accuracy of measured cardiac output using the newly developed esophageal doppler device with that of the thermodilution method using a pulmonary artery catheter. METHODS: In 15 patients undergoing off-pump coronary artery bypass surgery, cardiac outputs were measured at four episodes of surgery; (1) after induction of anesthesia, (2) during dissection of the internal mammary artery, (3) during anastomosis of the left anterior descending artery, and (4) after closure of the pericardium. RESULTS: The bias between the two methods was 0.52 +/- 1.09 L/min. Analysis of the changes in cardiac output from sample episode 1 to 2, from sample episode 2 to 3 and from sample episode 3 to 4, expressed as percent change values, shows no significant differences between the two methods (P > 0.05). CONCLUSIONS: The esophageal doppler accurately reflects changes in cardiac output with time when compared with that of the thermodilution.
