PMID- 28039244
OWN - NLM
STAT- In-Data-Review
LR  - 20180126
IS  - 1471-6771 (Electronic)
IS  - 0007-0912 (Linking)
VI  - 118
IP  - 1
DP  - 2017 Jan
TI  - Ultrasound assessment of gastric volume in severely obese individuals: a
      validation study.
PG  - 77-82
LID - 10.1093/bja/aew400 [doi]
AB  - BACKGROUND: Point-of-care gastric ultrasound is an emerging tool to assess
      gastric content and volume at the bedside. The examination includes both a
      qualitative and a quantitative component. The aim of this study was to evaluate
      the performance of an existing model for predicting gastric volume in severely
      obese subjects (BMI >35 kg m(-2)). METHODS: This observer-blinded experimental
      study compared the gastric volume predicted based on a sonographically measured
      cross-sectional area of the gastric antrum with the gastric volume measured by
      suctioning under gastroscopic guidance in a cohort of severely obese subjects.
      Volumes between 0 and 400 ml, in 100 ml increments, were studied. Allocation was 
      randomized, and all study observations were blinded to group allocation. The
      correlation and the level of agreement between predicted and observed volumes
      were studied. RESULTS: Data from 38 subjects suggested that the gastric volume
      predicted by sonographic assessment correlated strongly with that measured by
      gastric suctioning (concordance correlation coefficient of 0.82 and Pearson's
      correlation coefficient of 0.86). In addition, Bland-Altman analysis suggested a 
      high level of agreement between the calculated and suctioned volumes, with a mean
      difference of 35 ml, and 95% limits of agreement similar (within 30%) to those
      observed in the non-obese population. CONCLUSIONS: Our results suggest that the
      existing mathematical model to determine gastric fluid volume based on
      sonographic assessment performs well in severely obese individuals.
CI  - (c) The Author 2016. 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 - Kruisselbrink, R
AU  - Kruisselbrink R
AD  - Department of Anaesthesia, Toronto Western Hospital, University Health Network,
      399 Bathurst Street, McL 2-405, Toronto, ON, Canada M5S 2S8.
FAU - Arzola, C
AU  - Arzola C
AD  - Department of Anaesthesia, Mount Sinai Hospital, Toronto, ON, Canada.
FAU - Jackson, T
AU  - Jackson T
AD  - Department of Surgery, Division of General Surgery, Toronto Western Hospital,
      University Health Network, Toronto, ON, Canada.
FAU - Okrainec, A
AU  - Okrainec A
AD  - Department of Surgery, Division of General Surgery, Toronto Western Hospital,
      University Health Network, Toronto, ON, Canada.
FAU - Chan, V
AU  - Chan V
AD  - Department of Anaesthesia, Toronto Western Hospital, University Health Network,
      399 Bathurst Street, McL 2-405, Toronto, ON, Canada M5S 2S8.
FAU - Perlas, A
AU  - Perlas A
AD  - Department of Anaesthesia, Toronto Western Hospital, University Health Network,
      399 Bathurst Street, McL 2-405, Toronto, ON, Canada M5S 2S8 anahi.perlas@uhn.ca.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Br J Anaesth
JT  - British journal of anaesthesia
JID - 0372541
OTO - NOTNLM
OT  - gastric emptying
OT  - obesity
OT  - respiratory aspiration of gastric contents
OT  - ultrasonography
EDAT- 2017/01/01 06:00
MHDA- 2017/01/01 06:00
CRDT- 2017/01/01 06:00
PHST- 2016/11/08 00:00 [accepted]
PHST- 2017/01/01 06:00 [entrez]
PHST- 2017/01/01 06:00 [pubmed]
PHST- 2017/01/01 06:00 [medline]
AID - S0007-0912(17)30117-4 [pii]
AID - 10.1093/bja/aew400 [doi]
PST - ppublish
SO  - Br J Anaesth. 2017 Jan;118(1):77-82. doi: 10.1093/bja/aew400.