PMID- 35799563
OWN - NLM
STAT- MEDLINE
DCOM- 20220711
LR  - 20220820
IS  - 0974-5181 (Electronic)
IS  - 0971-9784 (Print)
IS  - 0971-9784 (Linking)
VI  - 25
IP  - 3
DP  - 2022 Jul-Sep
TI  - Comparative study of cardiac output measurement by regional impedance 
      cardiography and thermodilution method in patients undergoing off pump coronary 
      artery bypass graft surgery.
PG  - 335-342
LID - 10.4103/aca.aca_44_21 [doi]
AB  - BACKGROUND: An ideal CO monitor should be noninvasive, cost effective, 
      reproducible, reliable during various physiological states. Limited literature is 
      available regarding the noninvasive CO monitoring in open chest surgeries. AIM: 
      The aim of this study was to compare the CO measurement by Regional Impedance 
      Cardiography (RIC) and Thermodilution (TD) method in patients undergoing off pump 
      coronary artery bypass graft surgery (OPCAB). SETTINGS AND DESIGN: We conducted a 
      prospective observational comparative study of CO measurement by the noninvasive 
      RIC method using the NICaS Hemodynamic Navigator system and the gold standard TD 
      method using pulmonary artery catheter in patients undergoing OPCAB. A total of 
      150 data pair from the two CO monitoring techniques were taken from 15 patients 
      between 40-70 years at various predefined time intervals of the surgery. PATIENTS 
      AND METHODS: We have tried to find out the accuracy, precision and cost 
      effectiveness of the newer RIC technique. Mean CO, bias and precision were 
      compared for each pair i.e.TD-CO and RIC-CO as recommended by Bland and Altman. 
      The Sensitivity and specificity of cutoff value to predict change in TD-CO was 
      used to create a Receiver operating characteristic or ROC curve. RESULTS: Mean 
      TD-CO values were around 4.52 +/- 1.09 L/min, while mean RIC- CO values were around 
      4.77+/- 1.84 L/min. The difference in CO change was found to be statistically not 
      significant (p value 0.667). The bias was small (-0.25). The Bland Altman plot 
      revealed a mean difference of -0.25 litres. The RIC method had a sensitivity of 
      55.56 % and specificity of 33.33 % in predicting 15% change in CO of TD method 
      and the total diagnostic accuracy was 46.67%. CONCLUSION: A fair correlation was 
      found between the two techniques. The RIC method may be considered as a promising 
      noninvasive, potentially low cost alternative to the TD technique of hemodynamic 
      measurement.
FAU - Guha, Amrita
AU  - Guha A
AD  - Department of Cardiac Anaesthesiology, Medanta the Medicity, Gurugram, Haryana, 
      India.
FAU - Arora, Dheeraj
AU  - Arora D
AD  - Department of Cardiac Anaesthesiology, Medanta the Medicity, Gurugram, Haryana, 
      India.
FAU - Mehta, Yatin
AU  - Mehta Y
AD  - Department of Cardiac Anaesthesiology, Medanta the Medicity, Gurugram, Haryana, 
      India.
LA  - eng
PT  - Journal Article
PT  - Observational Study
PL  - India
TA  - Ann Card Anaesth
JT  - Annals of cardiac anaesthesia
JID - 9815987
SB  - IM
MH  - Cardiac Output/physiology
MH  - *Cardiography, Impedance/methods
MH  - Catheterization, Swan-Ganz
MH  - *Coronary Artery Bypass, Off-Pump
MH  - Humans
MH  - Reproducibility of Results
MH  - Thermodilution/methods
PMC - PMC9387605
OTO - NOTNLM
OT  - Noninvasive cardiac output monitoring
OT  - off pump coronary artery bypass graft surgery
OT  - regional impedance cardiography
OT  - thermodilution
COIS- There are no conflicts of interest.
EDAT- 2022/07/09 06:00
MHDA- 2022/07/12 06:00
PMCR- 2022/07/01
CRDT- 2022/07/08 02:33
PHST- 2022/07/08 02:33 [entrez]
PHST- 2022/07/09 06:00 [pubmed]
PHST- 2022/07/12 06:00 [medline]
PHST- 2022/07/01 00:00 [pmc-release]
AID - AnnCardAnaesth_2022_25_3_335_349930 [pii]
AID - ACA-25-335 [pii]
AID - 10.4103/aca.aca_44_21 [doi]
PST - ppublish
SO  - Ann Card Anaesth. 2022 Jul-Sep;25(3):335-342. doi: 10.4103/aca.aca_44_21.