Yu Ding1, Huiru Hou2, Miao Liu3, Xiaoyuan Wang2, Yue Xu4, Haiyan Shi1, Haitao Du1, Liyuan Wang1. 1. Department of Digestive, The Second Medical Centre, Chinese PLA General Hospital, Beijing, China. 2. The Second Medical Centre, Chinese PLA General Hospital, Beijing, China. 3. Institute of Geriatrics, Chinese PLA General Hospital, Beijing, China. 4. Medical School of Chinese PLA, Beijing, China.
Abstract
BACKGROUND: Elderly patients receiving nasal feeding have weaker physiological function, and placement of a nasogastric tube weakens the natural barrier of the cardia-esophageal sphincter; therefore, the risk of gastroesophageal reflux (GER) is higher. Many studies have shown that pepsin is extremely sensitive in predicting GERD, so this study intends to investigate the level of pepsin in saliva of elderly patients with nasal feeding and analyze its influencing factors. METHODS: This was a cross-sectional study. Patients admitted to the Chinese PLA General Hospital from April 2018 to October 2018 who received nasal feeding were included. One ml of saliva was collected from each patient in while sitting during fasting in the morning and 1 hour after lunch for 3 consecutive days. Pepsin was quantified by enzyme-linked immunosorbent assay (ELISA). The patients were predivided into two groups (≥7.75μg/ml or <7.75μg/ml) based on the median pepsin. Baseline and clinical factors were compared. RESULTS: The mean age of the patients was 91.09 ± 4.91 years. There were statistical differences in diabetes and feeding methods between the two groups. There was a positive correlation between the morning and postprandial pepsin levels (r = 0.442, P < 0.001), and has no statistical difference (P = 0.175). Multivariate analysis showed that the risk factors for higher pepsin levels were diabetes (odds ratio (OR): 2.67; 95% CI: 1.225-5.819, P = 0.013) and nasal feeding methods (OR: 2.475; 95% CI: 1.183-5.180, P=0.016). CONCLUSIONS: For patients undergoing nasal feeding who are older than 80 years, the fasting and 1-hour postprandial pepsin concentration were consistent. Diabetes and feeding methods are risk factors for high pepsin levels. For the elderly over 80 years old, age has no influence on pepsin concentration.
BACKGROUND: Elderly patients receiving nasal feeding have weaker physiological function, and placement of a nasogastric tube weakens the natural barrier of the cardia-esophageal sphincter; therefore, the risk of gastroesophageal reflux (GER) is higher. Many studies have shown that pepsin is extremely sensitive in predicting GERD, so this study intends to investigate the level of pepsin in saliva of elderly patients with nasal feeding and analyze its influencing factors. METHODS: This was a cross-sectional study. Patients admitted to the Chinese PLA General Hospital from April 2018 to October 2018 who received nasal feeding were included. One ml of saliva was collected from each patient in while sitting during fasting in the morning and 1 hour after lunch for 3 consecutive days. Pepsin was quantified by enzyme-linked immunosorbent assay (ELISA). The patients were predivided into two groups (≥7.75μg/ml or <7.75μg/ml) based on the median pepsin. Baseline and clinical factors were compared. RESULTS: The mean age of the patients was 91.09 ± 4.91 years. There were statistical differences in diabetes and feeding methods between the two groups. There was a positive correlation between the morning and postprandial pepsin levels (r = 0.442, P < 0.001), and has no statistical difference (P = 0.175). Multivariate analysis showed that the risk factors for higher pepsin levels were diabetes (odds ratio (OR): 2.67; 95% CI: 1.225-5.819, P = 0.013) and nasal feeding methods (OR: 2.475; 95% CI: 1.183-5.180, P=0.016). CONCLUSIONS: For patients undergoing nasal feeding who are older than 80 years, the fasting and 1-hour postprandial pepsin concentration were consistent. Diabetes and feeding methods are risk factors for high pepsin levels. For the elderly over 80 years old, age has no influence on pepsin concentration.
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