PMID- 4033106
OWN - NLM
STAT- MEDLINE
DCOM- 19851018
LR  - 20190817
IS  - 0022-4804 (Print)
IS  - 0022-4804 (Linking)
VI  - 39
IP  - 3
DP  - 1985 Sep
TI  - Determination of heat gain in the inferior vena cava during thermodilution 
      measurements.
PG  - 224-9
AB  - The measurement of blood flow in the inferior vena cava (IVC) by thermodilution 
      may be useful in the determination of hepatic venous blood flow (HVBF), but is 
      subject to major errors. The most serious error is gain of heat from the 
      abdominal viscera by the cool thermodiluent bolus as it moves up the IVC. The 
      determination or elimination of this heat gain is necessary for accurate IVC 
      blood flow measurement. By comparison of the area under the curve (AUC) for 
      cardiac output following femoral vein injection of the thermodiluent bolus to the 
      AUC following right ventricular injection of the thermodiluent, it is possible to 
      quantitatively determine the unidirectional heat gain by the bolus at it moves up 
      the IVC. The heat gain varied from 0 to 40% of the thermodiluent injected. The 
      factors that aggravated the heat gain were a low cardiac output (below 4000 
      ml/mn), a large thermodiluent calorie load (over -40 calories), and possibly a 
      slow transit time. The error due to heat gain may be effectively eliminated by 
      keeping the size of the thermodiluent bolus below 40 negative calories.
FAU - Bryant, G H
AU  - Bryant GH
FAU - Cucinell, S A
AU  - Cucinell SA
FAU - Barcia, P J
AU  - Barcia PJ
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Surg Res
JT  - The Journal of surgical research
JID - 0376340
SB  - IM
MH  - Animals
MH  - Body Temperature Regulation
MH  - Cardiac Output
MH  - Hepatic Veins/*physiology
MH  - Hot Temperature
MH  - Regional Blood Flow
MH  - Swine
MH  - Vena Cava, Inferior/*physiology
EDAT- 1985/09/01 00:00
MHDA- 1985/09/01 00:01
CRDT- 1985/09/01 00:00
PHST- 1985/09/01 00:00 [pubmed]
PHST- 1985/09/01 00:01 [medline]
PHST- 1985/09/01 00:00 [entrez]
AID - 0022-4804(85)90146-5 [pii]
AID - 10.1016/0022-4804(85)90146-5 [doi]
PST - ppublish
SO  - J Surg Res. 1985 Sep;39(3):224-9. doi: 10.1016/0022-4804(85)90146-5.