Relationship between intake volume of carbohydrates solution and gastric emptying time in termed parturients

Zhonghua yi xue za zhi
Y R WangJ Li

Abstract

Objective: To investigate the relationship between intake volume of carbohydrates solution (CHO) and gastric emptying time in termed parturient, thus to optimize fasting time before anesthesia. Methods: This study was a prospective study. From May to July in 2016, a total of 100 termed parturients in Huangyan Hospital of Wenzhou Medical University, were divided into four groups equally by means of random number table: D1 (200 ml), D2 (300 ml), D3 (400 ml) and D4 (500 ml), based on the different intake volume of 12.5% CHO. All the parturients had been fasted preoperatively before the treatment of oral CHO. The cross-sectional area of gastric antrum (CSA) was measured with an ultrasound machine at baseline (T(0)), 3 min (T(1)), 30 min (T(2)), 60 min (T(3)), 90 min (T(4)), 120 min (T(5)) and 150 min (T(6)) after oral CHO, respectively. Gastric emptying in this study is defined as CSA at any time point is equal to or less than that at T(0). Results: Measurement was failed in eight parturients because of poor imaging quality, two each in D1 and D2 group and four in D4 group. The cubic curve was the best model for gastric emptying among several candidate models estimated with SPSS software, with R(2)>0.9 in all groups. Both the cubic...Continue Reading

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