PMID- 7976395
OWN - NLM
STAT- MEDLINE
DCOM- 19941219
LR  - 20071115
IS  - 0231-424X (Print)
IS  - 0231-424X (Linking)
VI  - 82
IP  - 1
DP  - 1994
TI  - The measurement of cardiac output in dogs by impedance cardiography with 
      different electrode arrangements.
PG  - 37-52
AB  - This study was performed to compare cardiac output (CO) values determined by 
      means of impedance cardiography (ICG) with the conventional four-band electrode 
      array and with different spot electrode arrays in anaesthetised dogs. CO values 
      determined at end-expiratory apnoea with hand-calculation (ICG1) and during 
      several respiratory cycles with a computer program (ICG2) were compared with 
      values obtained via simultaneous thermodilution (TD) measurements. Changes in CO 
      during isoproterenol infusion, bleeding and reinfusion were also studied by means 
      of ICG1, using one of the spot electrode arrays and TD. Band voltage electrodes 
      yielded a significantly lower CO, whereas spot electrodes on the left thorax gave 
      a significantly higher CO than that measured with TD. In spite of the high 
      correlation coefficients in the different electrodes arrays, the bias between 
      ICG1 and TD, and that between ICG2 and TD CO in the SL1-SL8 and BN-BX electrode 
      arrays showed differences statistically significant from zero. The percentage 
      changes in CO measured with ICG1 in the SN-SX electrode array and TD during 
      isoproterenol infusion, bleeding and reinfusion also showed a high correlation. 
      These results indicate that band voltage electrodes can be replaced by the more 
      convenient spot electrodes in certain arrays. Further CO may be measured during 
      several respiratory cycles by using a computer program. Thus, ICG is a 
      reproducible, non-invasive method for the measurement of CO in anaesthetised 
      dogs.
FAU - Adamicza, A
AU  - Adamicza A
AD  - Institute of Experimental Surgery, Szent-Gyorgyi Albert Medical University, 
      Szeged, Hungary.
FAU - Tutsek, L
AU  - Tutsek L
FAU - Daroczy, B
AU  - Daroczy B
FAU - Bari, F
AU  - Bari F
FAU - Nagy, S
AU  - Nagy S
LA  - eng
PT  - Journal Article
PL  - Hungary
TA  - Acta Physiol Hung
JT  - Acta physiologica Hungarica
JID - 8309201
SB  - IM
MH  - Animals
MH  - Cardiac Output/*physiology
MH  - Cardiography, Impedance/*methods
MH  - Dogs
MH  - Electrodes
MH  - Female
MH  - Heart/physiology
MH  - Hemodynamics
MH  - Male
MH  - Thermodilution
EDAT- 1994/01/01 00:00
MHDA- 1994/01/01 00:01
CRDT- 1994/01/01 00:00
PHST- 1994/01/01 00:00 [pubmed]
PHST- 1994/01/01 00:01 [medline]
PHST- 1994/01/01 00:00 [entrez]
PST - ppublish
SO  - Acta Physiol Hung. 1994;82(1):37-52.