PMID- 7669305
OWN - NLM
STAT- MEDLINE
DCOM- 19951019
LR  - 20190913
IS  - 0952-8180 (Print)
IS  - 0952-8180 (Linking)
VI  - 7
IP  - 3
DP  - 1995 May
TI  - Cardiac output measurement: lack of agreement between thermodilution and thoracic 
      electric bioimpedance in two clinical settings.
PG  - 182-5
AB  - STUDY OBJECTIVE: To determine the agreement between thermodilution (TD) and 
      thoracic electric bioimpedance (TEB) techniques in cardiac output (CO) 
      measurements in hyperdynamic kidney recipients and normodynamic patients 
      subjected to radical cystectomy. The main objective was to determine the 
      reliability of TEB in CO measurement. DESIGN: Open two-group study. SETTING: 
      University hospital. PATIENTS: 19 kidney recipients and 5 radical cystectomy 
      patients. INTERVENTIONS: Radial artery cannula and pulmonary artery floating 
      catheter were inserted. The eight ECG spot electrodes of the TEB device were 
      situated on the body surface. MEASUREMENTS AND MAIN RESULTS: Simultaneous CO 
      measurements with TD and TEB were recorded at strategic points during the dynamic 
      state of anesthesia and surgery. The mean difference (bias, TD-TEB) was higher in 
      KRs (1.36 L/min) than radical cystectomy patients (-0.69 L/min). The 
      corresponding 95% confidences of the bias were 1.10 to 1.54 L/min and -0.83 to 
      -0.55 L/min. The precisions (SDs of bias) in kidney recipients and radical 
      cystectomy patients were 1.08 L/min and 0.66 L/min, respectively. The limits of 
      agreement were -0.97 to 3.51 L/min in kidney recipients and -1.99 to 0.61 L/min 
      in radical cystectomy patients. The 95% confidences of the limits of agreement in 
      kidney recipients were -1.09 to -0.49 for the lower limit and 3.21 to 3.81 for 
      the upper limit. The corresponding values in radical cystectomy patients were 
      -2.23 to -1.75 L/min and 0.37 to 0.85 L/min. CONCLUSIONS: These findings 
      demonstrate lack of agreement between TEB and TD in CO measurements in a 
      hyperdynamic and a normodynamic clinical setting. It is concluded that the TEB 
      device is unreliable in CO measurement and cannot replace or be interchanged with 
      TD.
FAU - Atallah, M M
AU  - Atallah MM
AD  - Department of Anesthesia, Urology, University of Mansuora, Egypt.
FAU - Demain, A D
AU  - Demain AD
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - United States
TA  - J Clin Anesth
JT  - Journal of clinical anesthesia
JID - 8812166
SB  - IM
CIN - J Clin Anesth. 1996 Jun;8(4):338-40. PMID: 8695140
MH  - Adult
MH  - Cardiac Output/*physiology
MH  - *Cardiography, Impedance
MH  - Case-Control Studies
MH  - Cystectomy
MH  - Humans
MH  - Kidney Transplantation/*physiology
MH  - *Thermodilution
EDAT- 1995/05/01 00:00
MHDA- 1995/05/01 00:01
CRDT- 1995/05/01 00:00
PHST- 1995/05/01 00:00 [pubmed]
PHST- 1995/05/01 00:01 [medline]
PHST- 1995/05/01 00:00 [entrez]
AID - 095281809400050E [pii]
AID - 10.1016/0952-8180(94)00050-e [doi]
PST - ppublish
SO  - J Clin Anesth. 1995 May;7(3):182-5. doi: 10.1016/0952-8180(94)00050-e.