PMID- 28403411
OWN - NLM
STAT- In-Data-Review
LR  - 20180308
IS  - 1471-6771 (Electronic)
IS  - 0007-0912 (Linking)
VI  - 118
IP  - 4
DP  - 2017 Apr 1
TI  - Comparison of bioreactance and echocardiographic non-invasive cardiac output
      monitoring and myocardial function assessment in primagravida women.
PG  - 527-532
LID - 10.1093/bja/aex045 [doi]
AB  - Background.: Non-invasive cardiac output monitoring (NICOM) using bioreactance
      (BRT) in pregnancy is gaining interest but lacks validation. We compared
      simultaneous cardiac output (CO) measurements obtained using the NICOM (R)
      (BRT-CO) and echocardiography (echo-CO), and assessed the relationship between
      maternal characteristics and myocardial performance. Methods.: Paired stroke
      volume (SV) and CO readings were obtained using NICOM (R) and echocardiography,
      in a group of healthy nulliparous women throughout a 15 min period. Agreement
      between NICOM (R) and echocardiography was assessed using Bland-Altman analysis
      and the intraclass correlation coefficient (ICC). Left ventricular (LV) function 
      was assessed using systolic strain and tissue Doppler velocities (S', E', and A' 
      waves). Results.: Thirty-five women with a median [interquartile range] age,
      weight, and gestation of 29 [26-34] yr, 71 [64-79] kg, and 28 [21-29] weeks,
      respectively, were enrolled. There was good agreement between NICOM (R) -measured
      and echocardiographically measured SV [mean bias 6 ml (limits of agreement -18 to
      29); ICC 0.8 (95% confidence interval 0.6-0.9), P <0.001] and CO [mean bias 0.2
      litres (limits of agreement -1.3-1.7); ICC 0.8 (95% confidence interval 0.7-0.9),
      P <0.001; mean percentage error +/-26%; coefficient of error (precision)=3.4%].
      The mean ( sd ) LV S' was 9.7 (2.3) cm s -1 . The mean ( sd ) LV strain was -18.6
      (2.6)%. There was a negative relationship between BMI and LV diastolic function
      measured using the E':A' ratio ( r = -0.51, P <0.01). Conclusions.: Stroke volume
      and CO measurements obtained using NICOM (R) were comparable to those obtained
      using echocardiography, with acceptable limits of agreement. Increased maternal
      BMI negatively impacts LV diastolic function measured using tissue Doppler
      imaging.
CI  - (c) The Author 2017. Published by Oxford University Press on behalf of the
      British Journal of Anaesthesia. All rights reserved. For permissions, please
      email: journals.permissions@oup.com
FAU - Doherty, A
AU  - Doherty A
AD  - Department of Anaesthesia, Rotunda Hospital, Dublin, Ireland.
FAU - El-Khuffash, A
AU  - El-Khuffash A
AD  - School of Medicine.
FAU - Monteith, C
AU  - Monteith C
AD  - Department of Obstetrics and Gynaecology, Royal College of Surgeons in Ireland,
      Dublin, Ireland.
FAU - McSweeney, L
AU  - McSweeney L
AD  - Department of Obstetrics and Gynaecology, Royal College of Surgeons in Ireland,
      Dublin, Ireland.
FAU - Breatnach, C
AU  - Breatnach C
AD  - School of Medicine.
FAU - Kent, E
AU  - Kent E
AD  - Department of Obstetrics and Gynaecology, Royal College of Surgeons in Ireland,
      Dublin, Ireland.
FAU - Tully, E
AU  - Tully E
AD  - Department of Obstetrics and Gynaecology, Royal College of Surgeons in Ireland,
      Dublin, Ireland.
FAU - Malone, F
AU  - Malone F
AD  - Department of Obstetrics and Gynaecology, Royal College of Surgeons in Ireland,
      Dublin, Ireland.
FAU - Thornton, P
AU  - Thornton P
AD  - Department of Anaesthesia, Rotunda Hospital, Dublin, Ireland.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Br J Anaesth
JT  - British journal of anaesthesia
JID - 0372541
OTO - NOTNLM
OT  - cardiac output
OT  - echocardiography
OT  - myocardial function
EDAT- 2017/04/14 06:00
MHDA- 2017/04/14 06:00
CRDT- 2017/04/14 06:00
PHST- 2017/01/31 00:00 [accepted]
PHST- 2017/04/14 06:00 [entrez]
PHST- 2017/04/14 06:00 [pubmed]
PHST- 2017/04/14 06:00 [medline]
AID - S0007-0912(17)31361-2 [pii]
AID - 10.1093/bja/aex045 [doi]
PST - ppublish
SO  - Br J Anaesth. 2017 Apr 1;118(4):527-532. doi: 10.1093/bja/aex045.