Effect of NPO Time and Type of Food Intake on Preoperative Residual Gastric Content and pH
| Status: | Recruiting |
|---|---|
| Healthy: | No |
| Age Range: | Any - 17 |
| Updated: | 2/17/2019 |
| Start Date: | August 24, 2018 |
| End Date: | December 2019 |
| Contact: | Patcharee Sriswasdi, MD |
| Email: | patcharee.sriswasdi@childrens.harvard.edu |
| Phone: | 857-218-5776 |
According to normal physiology, the longer fasting period allows food particles to pass
stomach through small intestines to minimize intragastric content. The practice guidelines
recommend 2-hour fasting period for clear fluid (including water, pulp-free juice and tea or
coffee without milk), 4- hour fasting period for breast milk and 6-hour fasting period for
non-human milk and solid food to reduce risks of pulmonary aspiration. As a result of longer
fasting period, patients tend to experience preoperative dehydrated states and intraoperative
hypotension. Patients' demographic data will be obtained from charts. Parents will be asked
for type, volume of fluid/food intake and NPO time.
This study will be done at BCH's Gastroenterology Procedure Unit (GPU) theaters to measure
actual intragastric volume and pH at the beginning esopagogastroduodenoscopy procedures. We
hope to demonstrate the relationship between NPO time and actual intragastric volume which
provide sufficient data of NPO time to ensure patient's safety.
stomach through small intestines to minimize intragastric content. The practice guidelines
recommend 2-hour fasting period for clear fluid (including water, pulp-free juice and tea or
coffee without milk), 4- hour fasting period for breast milk and 6-hour fasting period for
non-human milk and solid food to reduce risks of pulmonary aspiration. As a result of longer
fasting period, patients tend to experience preoperative dehydrated states and intraoperative
hypotension. Patients' demographic data will be obtained from charts. Parents will be asked
for type, volume of fluid/food intake and NPO time.
This study will be done at BCH's Gastroenterology Procedure Unit (GPU) theaters to measure
actual intragastric volume and pH at the beginning esopagogastroduodenoscopy procedures. We
hope to demonstrate the relationship between NPO time and actual intragastric volume which
provide sufficient data of NPO time to ensure patient's safety.
This study is a prospective observational cohort study which will be conducted in 2 parts
including preoperative and intraoperative periods.
- Preoperative period, patients' demographic information will be collected along with NPO
history including times, type ,amount of preoperative fluid/ food intake and patients'
anxiety score.
- Intraoperatively, at the beginning of EGD procedure, total volume of intragastric
content(ml) and gastric acidity will be measured.
We plan to offer participation to all patients or parents of patients' ages 0-17 years who
are scheduled for EGD at GPU, BCH Longwood campus and are fluent in English. A brochure
describing our study in English will be given to patients or their families on the day of
surgery. If the patient or family agrees to participate in this study, the study will be
provided in the GPU theaters.
including preoperative and intraoperative periods.
- Preoperative period, patients' demographic information will be collected along with NPO
history including times, type ,amount of preoperative fluid/ food intake and patients'
anxiety score.
- Intraoperatively, at the beginning of EGD procedure, total volume of intragastric
content(ml) and gastric acidity will be measured.
We plan to offer participation to all patients or parents of patients' ages 0-17 years who
are scheduled for EGD at GPU, BCH Longwood campus and are fluent in English. A brochure
describing our study in English will be given to patients or their families on the day of
surgery. If the patient or family agrees to participate in this study, the study will be
provided in the GPU theaters.
Inclusion Criteria:
- All patients who aged 0-17 years scheduled for EGD procedure.
Exclusion Criteria:
- Patients who required emergency EGD procedures and patients with active upper GI
bleeding.
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