The diagnosis of "gastroparesis" suggests that delayed gastric emptying is the underlying cause of symptoms, but this description fails to explain the variable presentation. There are fundamental differences in causes, symptoms, and prognosis among patients with idiopathic gastroparesis. Understanding these differences is necessary in order to provide effective treatment in these patients. We believe our classification for gastroparesis is a useful tool in the management of patients with idiopathic gastroparesis to predict clinical severity, treatment response, and future prognosis.
"Idiopathic gastroparesis" is a poor term to describe this very heterogeneous syndrome. Pathophysiology may not be "idiopathic," but merely unidentifiable with conventional methods suggested for gastroparesis. The diagnosis of "gastroparesis" suggests that delayed gastric emptying is the underlying cause of symptoms, but this description fails to explain the variable presentation. There are fundamental differences in pathophysiology, clinical presentation, severity, and future prognosis among patients with idiopathic gastroparesis. Understanding these differences is necessary in order to provide cost-effective treatment in these patients. We believe our clinical classification for gastroparesis is a clinical useful tool in the management of patients with idiopathic gastroparesis to predict clinical severity, treatment response, and future prognosis. Patients with vomiting-predominant gastroparesis will be more likely to have an underlying cause, such as viral infection or impaired glucose tolerance with vagal neuropathy. Their symptoms will likely be persistent. Patients with dyspepsia-predominant gastroparesis mimic those with functional dyspepsia and are unlikely to have complications such as weight loss, and dehydration. The necessity of enteric feeding in these patients is also unlikely. Prokinetics may help since delayed gastric emptying may contribute to epigastric pain or postprandial distress. Finding and treating small intestinal bacterial overgrowth as well as suggesting lifestyle and dietary modifications may be helpful. Patients with regurgitation-predominant gastroparesis may benefit most by improving their delayed gastric emptying. Their gastroparesis may cause reflux-like symptoms, especially at night.
Study Type
OBSERVATIONAL
Enrollment
15
University of Louisville
Louisville, Kentucky, United States
Incidence of poor outcome
Compare the incidence of any one of the following indicators of poor outcome between subjects with vomiting-predominant, dyspepsia-predominant, and regurgitation-predominant idiopathic gastroparesis: i) Developing new weight loss of \>10% due to gastroparesis compare to weight at study baseline ii) Gastric failure (severe symptoms requiring G or J tube or TPN) iii) Death
Time frame: 3 years
Clinical severity
Compare the prevalence of the pre-defined indicators of clinical severity between subjects with vomiting-predominant, dyspepsia-predominant, and regurgitation-predominant at study baseline.
Time frame: 1 year
Incidence of treatment success
Compare the incidence of pre-defined indicators of treatment success between the predominant-symptom subgroups.
Time frame: 3 years
Potential etiology of "idiopathic" gastroparesis
Compare the prevalence of pre-defined potential etiology between the predominant-symptom subgroups.
Time frame: 1 year
Prognostic indicators for idiopathic gastroparesis
Odd-ratios for developing the poor and good outcome during follow-up will be determined for pred-defined potential prognostic indictors obtained at the baseline visit.
Time frame: 3 years
Prevalence of obesity, metabolic syndrome and impaired glucose tolerance
Prevalence of obesity, metabolic syndrome and impaired glucose tolerance will be compared between the predominant-symptom subgroups and Subjects with and without gastroparesis complications.
Time frame: 1 year
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