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Gastroparesis, Diarrhea,
Gallbladder Atony, and Thrush:
Diabetes and the Gut
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Diabetes and the Gut
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Gastroparesis
Diarrhea
Gallbladder Atony
Thrush
Gastroparesis:
Definition
• The vagus nerve, which generally controls the movement
of food through the digestive tract, is damaged
• The muscles of the stomach and intestines do not work
properly
• The movement of food is slowed or stopped
• Can occur in either type 1 or type 2 diabetes
Cause of
Gastroparesis
• Chronically high blood-glucose levels:
– Causes chemical changes in nerves
– Damages the blood vessels that carry oxygen and
nutrients to the nerves
Symptoms of
Gastroparesis
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Heartburn
Nausea (especially in morning)
Vomiting undigested food
Early satiety
Weight loss
Abdominal bloating
Erratic blood glucose levels
Lack of appetite
Gastroesophageal reflux
Complications
of Gastroparesis
• More difficult to manage blood glucose
• Bacterial overgrowth in stomach
• Bezoar formation—may lead to obstruction
Diagnosing
Gastroparesis
• Barium X-ray:
– Fast for 12 hours and drink barium-containing liquid
– If food is still present in stomach, diagnosis is made
• Barium beefsteak meal:
– Eat a meal that contains barium
– Time of transit is monitored
Diagnosing
Gastroparesis (cont’d)
• Radioisotope gastric-emptying scan:
– Eat food that contains radioisotope
– Imaging used to see food in stomach and to time
transit
– Diagnosis if more than half of food remains in stomach
after 2 hours
• Gastric manometry:
– Thin tube passed down throat into stomach
– Wire in tube measures electrical and muscular activity
Keep in Mind
• Liquids may empty normally from the stomach in spite
of severe abnormalities in the ability to empty solid
materials from the stomach into the duodenum
Treating Gastroparesis
• Decreased fat and fiber intake
• Multiple small meals:
– Liquid diet sometimes is necessary
– Oral nutrition supplements often recommended
• Smoking cessation
• Light postprandial exercise, such as walking
• Changes in insulin type and timing:
– Take insulin after meals, instead of before meals
– Take insulin more often
Treating Gastroparesis
(cont’d)
• Oral medications:
– Reglan® (metoclopramide)
• Prokinetic that coordinates antral duodenal and pyloric
muscle function
• A powerful, centrally acting antiemetic
• Can cause Parkinson’s disease-like symptoms
• Generally well tolerated for 2–3 days
• Benadryl® can help with relief of side effects
Treating Gastroparesis
(cont’d)
• Nonspecific antiemetics, such as Phenergan® and
Compazine®, often used for symptom relief
• Intravenous erythromycin:
– Binds to motilin receptors on gastrointestinal tract
smooth muscle membranes, thereby mimicking
motilin’s actions
• Botox® injections into pylorus
Treating Gastroparesis
(cont’d)
• Relief band:
– Wrist device that sends electrical impulses and
stimulates the median nerve
– Can control nausea when medications are not effective
or cannot be used secondary to negative side effects
Treating Severe
Gastroparesis
• Jejunostomy (may use only at night):
– Percutaneous endoscopic jejunostomy (PEJ) is
discouraged because contents will regurgitate into
stomach if patient is vomiting frequently
• Parenteral nutrition:
– Generally only used briefly during hospitalization, not
on outpatient basis
Treating Severe
Gastroparesis (cont’d)
• Gastric neurostimulators activate contraction of smooth
muscle or nausea and vomiting control mechanisms
• Total gastrectomy if intractable weight loss and vomiting
in end-stage gastroparesis, if all other options have
failed:
– Usually patient already has had a partial gastric
resection
Diabetic Diarrhea
• People with diabetes mellitus are more likely to suffer
chronic diarrhea than the general population
• Possible causes:
– Nerve damage; autonomic neuropathy
– Malabsorption of nutrients
– Bacterial overgrowth in intestines
Bacterial Overgrowth
• Broad-spectrum antibiotics to decrease bacteria
• Small bowel intubation sometimes is necessary for
diagnosis
• Breath hydrogen testing and the 14C-D-xylose test may
prove helpful
Short-term Treatment
of Diabetic Diarrhea
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Imodium®
Pepto-Bismol®
Kaopectate®
Lomotil®
Long-term Treatment
of Diabetic Diarrhea
• Antibiotics such as tetracycline
• Somatostatin analogs, such as Sandostatin®
• Antispasmodics, such as Levsin®, Bentyl®, Librax®,
Clindex®
• Sometimes trial of pancreatic enzymes
• Fiber supplementation with bran, Citrucel®, Metamucil®,
or high-fiber foods
Gallbladder Atony
• People with diabetes mellitus have an increased incidence
of gallstones
• Primarily related to obesity of type 2 diabetes mellitus:
– Other possible causes include autonomic neuropathy
(bile not released normally and sludge forms) or
increased triglycerides, which cause stone formation
– Insulin-resistant mice are shown to have increased
cholesterol content of the bile, which may lead to stone
formation
Gallbladder Atony
(cont’d)
• Symptoms of biliary colic include intermittent right upper
abdominal pain, jaundice, or pancreatitis
• Surgery usually only recommended for individuals with
symptomatic gallstones
Thrush
• Poor glycemic control
• Mouth:
– Burning and pain with thick white coating of tongue
and throat
• Candida esophagitis:
– Can cause intestinal bleeding, heartburn, dysphagia
– Will require endoscopy for diagnosis
• Antifungal medications, such as Mycostatin®, Nizoral®, or
Diflucan®
Sources
• American Diabetes Association®. Gastroparesis. Available at:
http://www.diabetes.org/living-withdiabetes/complications/gastroparesis.html. Accessed August 28, 2012.
• eMedTV. Diabetic diarrhea. Available at:
http://diabetes.emedtv.com/diabetes/diabetic-diarrhea.html. Accessed
August 28, 2012.
• McCallum RW, George SJ. Gastroparesis. Available at:
http://www.oley.org/lifeline/gastro.html. Accessed August 28, 2012.
• Stresing D. Gallbladder problems and diabetes. Available at:
http://www.everydayhealth.com/gallbladder/gallbladder-problems-anddiabetes.aspx. Accessed August 28, 2012.
• Wolosin JD, Edelman SV. Diabetes and the gastrointestinal tract. Available
at: http://journal.diabetes.org/clinicaldiabetes/V18N42000/pg148.htm.
Accessed August 28, 2012.