PMID- 9389272
OWN - NLM
STAT- MEDLINE
DCOM- 19971217
LR  - 20190515
IS  - 0007-0912 (Print)
IS  - 0007-0912 (Linking)
VI  - 79
IP  - 4
DP  - 1997 Oct
TI  - Overestimation of low cardiac output measured by thermodilution.
PG  - 514-6
AB  - We have investigated the influence of a cold water bolus (CWB) injection on 
      overestimation of cardiac output (CO) in low CO states in anaesthetized dogs. CO 
      was measured using three methods: (1) thermodilution (TD), (2) electromagnetic 
      (EM) flow meter placed on the pulmonary artery and (3) transoesophageal 
      echo-Doppler (OD) placed on the descending aorta. Measurements of CO were 
      obtained before (steady state) and after induction of a low CO state with 
      thiopentone 5 mg kg-1 i.v. After CWB injection, mean CO measured by EM and OD 
      increased by 26% and 27%, respectively (P < 0.05) during steady state, and by 85% 
      and 75% (P < 0.05) during the low CO state. This transient increase was produced 
      by an increase in stroke volume, while heart rate did not change. Frank 
      Starling's law may explain this variation by a sudden increase in preload 
      produced by CWB injection. These results indicate that thermodilution 
      overestimated CO during low CO states when CWB injection was used.
FAU - Tournadre, J P
AU  - Tournadre JP
AD  - Critical Care Division, Hopital de l'Hotel-Dieu, Lyon, France.
FAU - Chassard, D
AU  - Chassard D
FAU - Muchada, R
AU  - Muchada R
LA  - eng
PT  - Journal Article
PL  - England
TA  - Br J Anaesth
JT  - British journal of anaesthesia
JID - 0372541
SB  - IM
MH  - Animals
MH  - Aorta, Thoracic/diagnostic imaging
MH  - Cardiac Output, Low/*diagnosis/diagnostic imaging
MH  - Cold Temperature
MH  - Dogs
MH  - Echocardiography, Doppler
MH  - Echocardiography, Transesophageal
MH  - Electromagnetic Phenomena
MH  - Hemorheology/instrumentation
MH  - Pulmonary Artery/physiopathology
MH  - *Thermodilution
EDAT- 1997/12/06 00:00
MHDA- 1997/12/06 00:01
CRDT- 1997/12/06 00:00
PHST- 1997/12/06 00:00 [pubmed]
PHST- 1997/12/06 00:01 [medline]
PHST- 1997/12/06 00:00 [entrez]
AID - S0007-0912(17)39828-8 [pii]
AID - 10.1093/bja/79.4.514 [doi]
PST - ppublish
SO  - Br J Anaesth. 1997 Oct;79(4):514-6. doi: 10.1093/bja/79.4.514.