Diagnosis
Upper Endoscopy.
Upper Endoscopy is a procedure used to view the esophagus, stomach, and part of the small intestine. It can detect other causes of slow stomach emptying, such as stomach blockage due to a growth or large ulcer. In patients with gastroparesis, the endoscopist is often able to see signs of reflux or food that is still present in the stomach from a prior meal.
Gastric Emptying Study.
The 4-hour solid phase gastric emptying study is the most commonly used test to diagnose gastroparesis. This radiologic study determines the time is takes food to move through the stomach. Patients are given a meal tagged with a radioactive isotope. Serial images of their stomach are taken until up to 4 hours after ingestion, thus calculating the amount of food which does not empty at various time points.
Complications
Gastroparesis can cause several problems:
- Prolonged sitting of food into the can lead to fermentation and growth of bacteria.
- Since food takes a long time to leave the stomach, sometimes it can harden into a solid mass called a bezoar. Bezoars may cause blockages in the stomach that keep food from passing into the small intestine.
- Inability to eat or drink due to severe vomiting may lead to dehydration episodes, sometimes requiring hospital admission. These could be particularly worrisome in patients with diabetes, who can develop a condition called diabetic ketoacidosis.
- Weight loss and malnutrition (poor nutrition) may happen in patients who are unable to get necessary amounts of calories for a long time.
Treatment
Unfortunately, gastroparesis is an uncurable disease. The goals of treatment are to alleviate the symptoms and improve patients' quality of life.
Diet and Lifestyle Modifications.
Diet modifications are advised in all patients with gastroparesis. Eating small portions and avoiding foods reach in fat content may help improve the symptoms. Liquids and low-residue foods are better tolerated than solids and foods with high fiber content. In patients with diabetes, good blood sugar control is important, as this reduces the severity of symptoms.
Medication.
Various medications are used to control the symptoms of gastroparesis, such as nausea or vomiting (e.g. Zofran) or to help the stomach contract and help move the food out towards the small intestine (e.g. Reglan, Erythromycin). Anti-acid medication also helps in patients with associated gastro-esophageal reflux disease.