| Multidetector computed tomography-based evaluation of gastric volumes in patients with out-of-hospital cardiac arrest |
Jung-Ju Lee1
, Hyun-Jeong Park2
, Gyeong-Gyu Yu2
, Young-Min Kim1
, Sang-Chul Kim1,2
, Jee-Han Lee1
, Hyun-Seok Chai1
, Gwan-Jin Park1
, Suk-Woo Lee1,2
, Hoon Kim1,2
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1Department of Emergency Medicine, Chungbuk National University Hospital, Cheongju, Korea
2Department of Emergency Medicine, Chungbuk National University College of Medicine, Cheongju, Korea |
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Received: February 7, 2022; Revised: March 7, 2022 Accepted: April 25, 2022. Published online: December 31, 2022. |
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| ABSTRACT |
Objective:
Resuscitation-related gastric inflation is associated with inadequate ventilation and the risk of gastric regurgitation in out-of-hospital cardiac arrest (OHCA) patients. This study aims to estimate resuscitation-related gastric inflation values by using multi-detector computed tomography (MDCT) scanning.
Method:
MDCT imaging data were obtained from OHCA patients undergoing resuscitation from January 2014 to December 2020. Thirty age- and sex-matched healthy controls that underwent an MDCT scan were included. Gastric air volume (GAV), total gastric volume (TGV), and GAV/gastric content volume (GCV) ratio values were estimated.
Results:
In healthy controls (n=30), GAV and TGV values were in the range 5.0-35.0 mL, and 202.0-1,002.0 mL, respectively. The mean GAV and TGV values of OHCA patients (n=97) were 251.0 mL (range, 55.5-896.0) and 878.0 mL (range, 430.5-1,696.0), respectively. Significant between-group differences were determined in the mean GCV, GAV, and GAV/GCV ratio values. In OHCA patients, the cut-off value for abnormal GAV was defined as 56.5 mL (mean value plus two times standard deviation). Patients with abnormal GAV findings on MDCT scans had a longer duration from arrest to the return of spontaneous circulation, low body mass index, and increased rates of lactic acidosis.
Conclusion:
Our results indicate an association between gastric air accumulation after resuscitation with longer recovery from arrest to return of spontaneous circulation, low body mass index, and increased lactic acidosis. |
| Key words:
Resuscitation-related gastric inflation; out-of-hospital cardiac arrest; multi-detector computerized tomography; gastric air volume; total gastric volume |
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