Influence of age on gastric emptying in healthy Chinese.
Radionuclide gastric emptying studies, including solid and liquid phases, were used to evaluate the gastric motility of healthy Chinese. Forty-eight patients (18-76 years old) and 38 volunteers (27-79 years old) accepted solid or liquid food gastric emptying studies, respectively. The solid meal was two fried eggs mixed with 500 microCi Tc-99m phytate and two pieces of toast to form a sandwich. The liquid meal was 500 ml of water with 5% glucose and 500 microCi Tc-99m phytate. Studies were performed with the subjects in the supine position and a gamma camera in a left anterior oblique (LAO) position while data were collected for 90 minutes and 30 minutes after finishing the solid and liquid meal, respectively. The gastric emptying time was presented as a half-time (t1/2) of the food emptying from the stomach. The study results showed that the t1/2 is 89.0 +/- 17.8 in older patients (> 60 years old) and 88.0 +/- 18.2 in younger patients (< or = 60 years old) for the solid phase studies (P > 0.05), and that the t1/2 is 46.2 +/- 11.1 in older patients (> 60 years old) and 31.9 +/- 11.3 in younger patients (< or = 60 years old) for the liquid phase studies (P < 0.05). We concluded that the age effects of gastric emptying in healthy Chinese occurred only in the liquid phase.
Kao
C H
CH
Department of Nuclear Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China.
Lai
T L
TL
Wang
S J
SJ
Chen
G H
GH
Yeh
S H
SH
D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D005260:Female; D005502:Food; D005746:Gastric Emptying / Q000502:physiology*; D005769:Gastrointestinal Motility / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D015609:Organotechnetium Compounds; D010833:Phytic Acid; D011877:Radionuclide Imaging; D013270:Stomach / Q000000981:diagnostic imaging*; D013997:Time Factors
D015609:Organotechnetium Compounds; C026177:technetium phytate; D010833:Phytic Acid