PMID- 18418719
OWN - NLM
STAT- MEDLINE
DCOM- 20090415
LR  - 20211020
IS  - 1573-2614 (Electronic)
IS  - 1387-1307 (Linking)
VI  - 22
IP  - 3
DP  - 2008 Jun
TI  - Non-invasive cardiac output by transthoracic electrical bioimpedence in 
      post-cardiac surgery patients: comparison with thermodilution method.
PG  - 175-80
LID - 10.1007/s10877-008-9119-y [doi]
AB  - OBJECTIVE: Thoracic electrical bioimpedance (TEB) cardiac output (CO) is being 
      explored increasingly as a non-invasive alternative to the pulmonary artery 
      catheter (PAC). This study compared TEB-CO measured using a new 
      instrument--NICOMON (Larsen & Toubro Ltd. India) with thermodilution (Td) CO in 
      post-cardiac surgery patients. METHODS: Postoperative cardiac surgical patients 
      requiring a PAC for their management were studied. TEB-CO was measured by passing 
      a 4 mA RMS alternating current across the chest and measuring the analog 
      bioimpedence across the thorax. Kubicek equation was used to estimate TEB-CO. 
      Td-CO was measured using a PAC. Bland-Altman analysis was used to compare paired 
      data. RESULTS: One hundred and ninety-seven pairs of CO measurements were made by 
      the two methods among 35 patients. Mean TEB-CO was 5.15 +/- 1.27 l/min and mean 
      Td-CO was 5.22 +/- 1.28 l/min. Pearson correlation coefficient (r) for these 
      measurements was 0.856 (P < 0.01), with bias -0.0651 l and precision: +/-1.37 
      l/min. The percentage error of measurement of this precision was 26.44%. Cardiac 
      index also correlated among the two methods (r = 0.789; P = 0.01). CONCLUSIONS: 
      Thoracic electrical bioimpedance cardiac output compares favorably with 
      thermodilution method among post-cardiac surgery patients. Further studies are 
      indi- cated with this instrument to validate its efficacy in various clinical 
      situations and utility in monitoring hemodynamic interventions.
FAU - Gujjar, Arunodaya R
AU  - Gujjar AR
AD  - Department of Neurology, National Institute of Mental Health & Neurosciences, 
      Hosur Road, Bangalore, 560029, India. grarunoday@yahoo.co.in
FAU - Muralidhar, K
AU  - Muralidhar K
FAU - Banakal, Sanjay
AU  - Banakal S
FAU - Gupta, Ratan
AU  - Gupta R
FAU - Sathyaprabha, Talakad N
AU  - Sathyaprabha TN
FAU - Jairaj, P S
AU  - Jairaj PS
LA  - eng
PT  - Comparative Study
PT  - Controlled Clinical Trial
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080417
PL  - Netherlands
TA  - J Clin Monit Comput
JT  - Journal of clinical monitoring and computing
JID - 9806357
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - *Cardiac Output
MH  - Cardiography, Impedance/*methods
MH  - Diagnosis, Computer-Assisted/*methods
MH  - Female
MH  - Heart Diseases/*diagnosis/physiopathology/*surgery
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Postoperative Care/methods
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - Thermodilution/*methods
MH  - Young Adult
EDAT- 2008/04/18 09:00
MHDA- 2009/04/16 09:00
CRDT- 2008/04/18 09:00
PHST- 2008/02/01 00:00 [received]
PHST- 2008/03/26 00:00 [accepted]
PHST- 2008/04/18 09:00 [pubmed]
PHST- 2009/04/16 09:00 [medline]
PHST- 2008/04/18 09:00 [entrez]
AID - 10.1007/s10877-008-9119-y [doi]
PST - ppublish
SO  - J Clin Monit Comput. 2008 Jun;22(3):175-80. doi: 10.1007/s10877-008-9119-y. Epub 
      2008 Apr 17.