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11 Cards in this Set
- Front
- Back
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Neuromuscular Activities of the Stomach
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Receptive relaxation (vagal stimulated),Antral peristalsis (trituration and emptying),3 cycle per min slow waves (pacemakerrhythm),Antropyloroduodenal coordination,Normal vagal and splanchnic neural function
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Describe differences in solid phase and liquid phase gastric emptying
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liquid phase- 50% empty in 30 min...faster than a solid that requires mixing phase
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Describe five major causes of neuromuscular dysfunction of the stomach
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Impaired Fundic Relaxation, Antral hypomotility, Vagal nerve dysxn, dysrhythmias, Abnormal fundic emptying, pylorospasm
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List six categories of gastroparesis
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Gastroparesis is defined as GET >6hrs
1.Obstuctive gastropareis2.Ischemic gastroparesis3.Diabetic gastroparesis (type 1 and 2)4.Postsurgical gastroparesis (antrectomy, vagotomy, fundectomy, fundoplication)5.Miscellaneous Causes (CVD, amyloid, MD)6.Idiopathic gastroparesis (?postviral, ?drug-induced, ?degenerative or inflammatory processes-smooth muscle, enteric n., interstitial cells of Cajal, ANS) |
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Define the three phases of gastric and small bowel motility during fasting
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Phase 1--- no contractions (10 min quiescence)Phase 2--- increased, random contractions(70 min)Phase 3 (migrating motor complex-MMC)---5-8 min of strong antral-small bowel contractions that migrate to ileum every 90-100 minutes
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Sx for Abnormal Gastric Neuromuscular events
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Early Stiety, nause, prolonged postprandial fullness, RUQ pain, nausea, pain, bloating
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Epigastric Pain
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Localized epigastric pain/burningLocalizedIntermittentNo relief with defe-cation or flatus
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Postprandial Distress
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Postprandial fullnessEarly satiationNausea+; BloatingChronic Idiopathic Nausea+
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Treatment approaches for Gastric Neuromuscular disorders
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metoclopromide- but has cns side effects. other drugs arent approveddevices like gtubes, and electrical stimulation
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Nausea/vomiting (gastroparesis) diet
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Step one-gatorade and boullion
Step 2- soupds Step 3- Starches, chicken and fish |
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Fed pattern small bowel motility
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segmental and short duration peristaltic contractions
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