PMID- 1742833
OWN - NLM
STAT- MEDLINE
DCOM- 19920116
LR  - 20181113
IS  - 0832-610X (Print)
IS  - 0832-610X (Linking)
VI  - 38
IP  - 7
DP  - 1991 Oct
TI  - Measurement of cardiac output--transtracheal Doppler versus thermodilution.
PG  - 931-4
AB  - The ABCOM 1 transtracheal Doppler (TTD) has been developed as a non-invasive 
      cardiac output monitor. With this device, cardiac output is continuously 
      calculated from ascending aortic blood flow velocity and aortic diameter obtained 
      via an ultrasound transducer incorporated into the tip of an endotracheal tube. 
      We evaluated the clinical use of the ABCOM 1 monitor and compared cardiac outputs 
      obtained using the TTD system with simultaneous thermodilution (TD) measurements. 
      We found the operation of the ABCOM 1 monitor to be difficult and time-consuming. 
      In our operating rooms, acceptable Doppler signal quality was difficult to 
      obtain. There was no correlation between 36 simultaneously obtained TTD and TD 
      cardiac output measurements. The average difference between measurement 
      techniques and the limits of agreement were unacceptably large (mean difference = 
      3.04 L.min-1, mean +/- 2 SD = -6.04 to 12.48 L.min-1). Separately analyzing only 
      those measurements during which Doppler signal quality was adequate did not 
      improve agreement between TTD and TD measurements. On the basis of these 
      findings, TTD cannot be recommended as a clinical cardiac output measurement 
      technique.
FAU - Froese, N
AU  - Froese N
AD  - Department of Anesthesia, University of Manitoba, Faculty of Medicine, Winnipeg.
FAU - Friesen, R
AU  - Friesen R
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Can J Anaesth
JT  - Canadian journal of anaesthesia = Journal canadien d'anesthesie
JID - 8701709
SB  - IM
MH  - *Cardiac Output
MH  - Echocardiography, Doppler/*instrumentation
MH  - Humans
MH  - Monitoring, Physiologic/*instrumentation/methods
MH  - Thermodilution/*instrumentation/methods
EDAT- 1991/10/01 00:00
MHDA- 1991/10/01 00:01
CRDT- 1991/10/01 00:00
PHST- 1991/10/01 00:00 [pubmed]
PHST- 1991/10/01 00:01 [medline]
PHST- 1991/10/01 00:00 [entrez]
AID - 10.1007/BF03036977 [doi]
PST - ppublish
SO  - Can J Anaesth. 1991 Oct;38(7):931-4. doi: 10.1007/BF03036977.