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Research article
Tadashi Okabe
Hitachi, Ltd., Hitachinaka General Hospital
Corresponding Author
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Background The gastric emptying of alcoholic beverages remains unclear because the current preoperative fasting guidelines state that clear fluids do not include alcohol, which has led to no information being available on the gastric emptying of alcoholic beverages, and inconsistent findings from previous studies. We demonstrated that liquid gastric emptying mainly depended on energy content, regardless of compositional differences. Therefore, we performed the present study to compare gastric emptying times between whisky mixed with water and sugar water with uniform energy contents and volumes. Methods As a crossover study, 10 healthy male volunteers ingested one of 3 test solutions with a uniform volume of 150 ml, i.e., whisky with water-containing whisky 30 ml (67 kcal), sugar water containing glucose 16.8 g (67 kcal), and water (0 kcal), and the gastric emptying time of each beverage was then assessed by ultrasound measurements of the gastric antral cross-sectional area. Results The gastric emptying pattern of whisky with water was faster than that of isocaloric sugar water, but slower than that of water. Each antral cross-sectional area 20, 30, and 40 min after the ingestion of sugar water was significantly higher than that of whisky with water. Antral cross-sectional areas 10 and 20 min after the ingestion of water were significantly lower than those of whisky with water. Conclusions The results of our study suggested that the gastric emptying time of whisky would be shorter than that of isocaloric glucose solution. Unlike the other beverages, the gastric emptying time of alcohol drinks does not purely depend on the energy content because alcohol itself has no calorie before absorption. The liquid gastric emptying of whisky will theoretically have the similar pattern to that of a calorie-free beverage; however, a slower rate than that of water was observed. Further investigations on the factors contributing to this delay are needed.
Keywords
gastric emptying time, alcohol, ultrasonography, preoperative fasting
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This is a preprint. It has not completed peer review.
Research article
Tadashi Okabe
Hitachi, Ltd., Hitachinaka General Hospital
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 05 Nov, 2019
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Gastroenterology & Hepatology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background The gastric emptying of alcoholic beverages remains unclear because the current preoperative fasting guidelines state that clear fluids do not include alcohol, which has led to no information being available on the gastric emptying of alcoholic beverages, and inconsistent findings from previous studies. We demonstrated that liquid gastric emptying mainly depended on energy content, regardless of compositional differences. Therefore, we performed the present study to compare gastric emptying times between whisky mixed with water and sugar water with uniform energy contents and volumes. Methods As a crossover study, 10 healthy male volunteers ingested one of 3 test solutions with a uniform volume of 150 ml, i.e., whisky with water-containing whisky 30 ml (67 kcal), sugar water containing glucose 16.8 g (67 kcal), and water (0 kcal), and the gastric emptying time of each beverage was then assessed by ultrasound measurements of the gastric antral cross-sectional area. Results The gastric emptying pattern of whisky with water was faster than that of isocaloric sugar water, but slower than that of water. Each antral cross-sectional area 20, 30, and 40 min after the ingestion of sugar water was significantly higher than that of whisky with water. Antral cross-sectional areas 10 and 20 min after the ingestion of water were significantly lower than those of whisky with water. Conclusions The results of our study suggested that the gastric emptying time of whisky would be shorter than that of isocaloric glucose solution. Unlike the other beverages, the gastric emptying time of alcohol drinks does not purely depend on the energy content because alcohol itself has no calorie before absorption. The liquid gastric emptying of whisky will theoretically have the similar pattern to that of a calorie-free beverage; however, a slower rate than that of water was observed. Further investigations on the factors contributing to this delay are needed.
Figure 1
Figure 2
Figure 3
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