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Functional (nonulcer) dyspepsia refers to upper abdominal pain or discomfort with or without symptoms of early satiety, nausea, or vomiting with no definable organic cause. The current Rome II criteria help to diagnose functional dyspepsia and avoid misdiagnosis of gastroesophageal reflux disease and irritable bowel syndrome as functional dyspepsia. Assessment of gastric emptying with scintigraphy or breath testing may be useful in identifying delayed gastric emptying in patients with dyspeptic symptoms and may be helpful in patient management. Electrogastrography is a noninvasive test that evaluates for gastric dysrhythmias. Satiety testing is being evaluated as an indirect test for impaired fundic relaxation and visceral hypersensitivity. The symptom response to Helicobacter pylori therapy in patients with functional dyspepsia and a negative endoscopy examination but a positive H. pylori test is marginal. Lifestyle modifications often are suggested for initial treatment of functional dyspepsia. Dietary changes such as frequent small meals, low-fat diet, and avoidance of certain aggravating foods may improve symptoms. Additional measures include cessation of smoking, avoiding excess alcohol intake, and minimizing coffee intake. Antacids and over-the-counter histamine type 2 receptor antagonists may be helpful as an "on-demand" therapy for intermittent symptoms. They are safe and relatively inexpensive. Different subgroups of functional dyspepsia are based on the predominant symptom and may help in choosing an appropriate drug to initiate therapy. If the predominant symptom is epigastric pain (ulcer-like functional dyspepsia), histamine-2 receptor antagonists or proton pump inhibitors are the initial treatment of choice. If fullness, bloating, early satiety or nausea is the predominant complaint (dysmotility-like functional dyspepsia), a prokinetic agent may help. Metoclopramide is the only available effective prokinetic agent at present. If metoclopramide is used, short-term treatment and discussion of possible side effects with the patient are advised. If there is no response to these initial treatments, switching therapy from proton pump inhibitor to prokinetic or vice versa can be tried. If these treatment options fail, patient re-evaluation for other disorders (including other functional bowel disorders) is advised. A low-dose tricyclic antidepressant at bedtime may be helpful for treatment of visceral hypersensitivity.
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PMID:Functional (Nonulcer) Dyspepsia. 1187 96

Functional dyspepsia is a symptom complex characterised by postprandial upper abdominal discomfort or pain, early satiety, nausea, vomiting, abdominal distension, bloating, and anorexia in the absence of organic disease. Gastrointestinal motor abnormalities, altered visceral sensation, and psychosocial factors have all been identified as major pathophysiological mechanisms. This perspective has now replaced the earlier view that the condition was the result of a sole motor or sensory disorder of the stomach. Future therapeutic strategies should be aimed at reducing nociception as well as enhancing the accommodation response.
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PMID:Pathophysiology of functional dyspepsia. 1207 69

The effectiveness of pulsed high-dose oral dexamethasone therapy in children with refractory chronic idiopathic thrombocytopenic purpura (ITP) is evaluated. Thirteen children with severe chronic ITP were enrolled in the study from an outpatient pediatric hematology clinic (ages 2-14 years), 5 boys and 7 girls. They did not maintain a response to other forms of therapy (IVIg, Anti-D, conventional steroids, danazol) and one girl relapsed after splenectomy. Dexamethasone was administered orally at a dosage of 40 mg/M2/day (maximum 40 mg/day) for 4 consecutive days. The cycle was repeated once a month for 6 months. The immediate response to therapy was excellent as the mean platelet count at day 1 was 15 x 10(9)/L, while mean platelet count at day 4 was 158 x 10(9)/L. At the end of 6 cycles 3 patients maintained a platelet count of >150 x 10(9)/L and 4 patients showed partial response. At the end of the first year and second year (12 and 24 months after onset of treatment) 3 patients still had complete response, 3 patients had partial response, and 7 patients were failures. Six of the failures underwent splenectomy and one was shifted to dapsone, had no response, and refused splenectomy. Side effects were tolerable. They included bloating, nausea, vomiting, insomnia, anxiety, and depression, and transient glucosuria; however, they were not severe enough to discontinue the cycles. Mean duration of illness prior to start of dexamethasone was not significantly different in between responders and nonresponders. Dexamethasone given orally in high doses is an effective drug in achieving short-term platelet responses. Long-term remission is obtained in nearly half the patients with well-established chronic ITP. Its effectiveness in almost half the patients, minimal side effects, and low cost indicate that this treatment should be considered in patients with chronic ITP who do not tolerate the disease well before considering splenectomy.
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PMID:Pulsed high-dose dexamethasone therapy in children with chronic idiopathic thrombocytopenic purpura. 1207 64

Cholelithiasis and gastroesophageal reflux are both very common diseases that may occur simultaneously. Management of asymptomatic gallstones is still controversial. Because severe complications due to gallstones may occur incidental cholecystectomy during nonrelated abdominal surgery may be offered to patients with coexisting gallbladder disease. The aim of this study was to assess the clinical outcome of patients after laparoscopic fundoplication and incidental cholecystectomy for cholelithiasis compared with the outcome of patients after fundoplication alone. We conducted a retrospective chart review and prospective analysis using a questionnaire of the clinical outcome of patients who underwent laparoscopic fundoplication and incidental cholecystectomy from June 1991 to January 2000 in comparison with sex- and age-matched patients who had antireflux surgery alone. Sixty-seven (6.3%) of 1065 patients had a laparoscopic cholecystectomy at the time of laparoscopic antireflux surgery; 101 (75%) of 134 answered the questionnaire. The mean follow-up time was 4.6 years. Laparoscopic cholecystectomy did not influence surgical morbidity or mortality. Postoperative symptom score (1-10) did not show a statistically significant difference regarding bloating, diarrhea, abdominal pain, nausea, vomiting, biliary problems, jaundice, pancreatitis, dysphagia for liquids and solid, heartburn, regurgitation, and chest pain when the two groups were compared. We conclude that incidental cholecystectomy during laparoscopic antireflux surgery is safe and does not appear to influence the clinical outcome of the antireflux procedure.
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PMID:Incidental cholecystectomy during laparoscopic antireflux surgery. 1213 45

Patients with cancer frequently report gastrointestinal symptoms such as anorexia, early satiety, nausea, vomiting, and bloating. A reduction of the severity of some of these symptoms would benefit the patient by enhancing quality of life and improving their treatment. Forty-eight patients (25 female and 23 male; mean age 63 +/- 11 years) with a minimum two-week history of cancer-associated gastrointestinal symptoms were assigned to a single, open-label treatment group and received controlled-release metoclopramide 20 mg-80 mg q12h for a maximum period of 12 weeks (mean 46 +/- 35 days). There was a 40%-60% decrease in the severity of nausea over the first two weeks of treatment, and an approximate 50% reduction in severity of vomiting over the first four weeks of treatment. Appetite and bloating also improved, although smaller and less consistent changes were observed. Patient ratings of overall clinical effectiveness with respect to relief from symptoms and tolerability of side effects indicated that controlled-release metoclopramide was highly and moderately effective in 36% and 30% of the patients, respectively. Controlled-release metoclopramide is a useful treatment for the management of gastrointestinal symptoms associated with the cancer-associated dyspepsia syndrome including nausea, vomiting, loss of appetite, and bloating.
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PMID:Long-term safety and clinical effectiveness of controlled-release metoclopramide in cancer-associated dyspepsia syndrome: a multicentre evaluation. 1216 5

Nearly one-half of the most frequently reported and most distressing symptoms in patients with advanced cancer are gastrointestinal in nature. This prospective study was designed to assess the frequency of gastrointestinal symptoms among inpatients admitted to a palliative medicine program with advanced cancer. Twenty-nine men and 2l women, with a median age of 64 years (range, 35-84), were interviewed about 17 gastrointestinal symptoms. Age, gender, diagnosis, and medication use were also recorded The most common diagnoses were cancers of the lung (n = 14), breast (n = 6), and prostate (n = 4). Dry mouth (84 percent), weight loss (76 percent), early satiety (71 percent), taste change (60 percent), constipation (58 percent), anorexia (56 percent), bloating (50 percent), nausea (48 percent), abdominal pain (42 percent), and vomiting (34 percent) were the 10 most common gastrointestinal symptoms. Women had more gastrointestinal symptoms than men (median 8 vs. 6, p = 0.018), although this finding was not statistically significant (p = 0.11) after excluding gender-specific cancers. Women had more taste change and diarrhea than men after excluding gender-specific cancers (p = 0.036 and p = 0.046, respectively). Those with primary gastrointestinal cancers (n = 8) had more indigestion and hiccups than those with nongastrointestinal cancers (n = 39). There was no age difference in symptomatology. The drugs prescribed most commonly were opioids (n = 40), laxatives (n = 38), H2 blockers (n = 29), appetite stimulants (n = 29), and antiemetics (n = 29). Findings support that gastrointestinal symptoms are very common in hospitalized patients with advanced cancer and that the frequency and type of symptoms differ with gender and gastrointestinal vs. nongastrointestinal primary site.
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PMID:Gastrointestinal symptoms among inpatients with advanced cancer. 1226 82

Diabetic gastroparesis is a common and debilitating condition affecting millions of patients with diabetes mellitus worldwide. Although gastroparesis in diabetes has been known clinically for more than 50 years, treatment options remain very limited. Until recently, the scientific literature has offered few clues regarding the precise aetiology of gastric dysfunction in diabetes.Up to 50% of patients with diabetes may experience postprandial abdominal pain, nausea, vomiting and bloating secondary to gastric dysfunction. There is no clear association between length of disease and the onset of delayed gastric emptying. Gastroparesis affects both type 1 (insulin dependent) and type 2 (non- insulin dependent) forms of diabetes. Diagnosis requires identifying the proper symptom complex, while excluding other entities (peptic ulcer disease, rheumatological diseases, medication effects). The diagnosis of gastroparesis may be confirmed by demonstrating gastric emptying delay during a 4-hour scintigraphic study. Treatment options are limited and rely on dietary modifications, judicious use of available pharmacological agents, and occasionally surgical or endoscopic placement of gastrostomies or jejunostomies. Gastric pacing offers promise for patients with medically refractory gastroparesis but awaits further investigation. Current pharmacological agents for treating gastroparesis include metoclopramide, erythromycin, cisapride (only available via a company-sponsored programme) and domperidone (not US FDA approved). All of these drugs act as promotility agents that increase the number or the intensity of gastric contractions. These medications are not uniformly effective and all have adverse effects that limit their use. Cisapride has been removed from the open market as a result of over 200 reported cases of cardiac toxicity attributed to its use. Unfortunately, there is a paucity of clinical studies that clearly define the efficacy of these agents in diabetic gastroparesis and there are no studies that compare these drugs to each other. The molecular pathophysiology of diabetic gastroparesis is unknown, limiting the development of rational therapies. New studies, primarily in animals, point to a defect in the enteric nervous system as a major molecular cause of abnormal gastric motility in diabetes. This defect is characterised by a loss of nitric oxide signals from nerves to muscles in the gut resulting in delayed gastric emptying. Novel therapies designed to augment nitric oxide signalling are being studied.
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PMID:Current concepts in diabetic gastroparesis. 1282 60

Symptom recognition is critical for patient care but has been little studied in older HIV-infected individuals. The authors examined differences in symptom expression between younger (younger than age 50 years) and older (older than age 50 years) HIV-infected individuals. The authors analyzed data from two cross-sectional studies of HIV-infected individuals: 2864 individuals from the HIV Cost and Service Utilization Study (HCSUS) and 881 individuals from the Veterans Aging Cohort 3 Site Study (VACS 3). The authors compared the prevalence of eight symptoms common to both studies and 10 symptoms examined only in the VACS 3 population, stratified by age and race. Disease severity was assessed by CD4 count and 18 HIV-related diseases reported. Multivariate logistic regression models were used to account for demographics and severity differences. VACS 3 versus HCSUS participants were more likely nonwhite and older. In unadjusted comparisons, older nonwhites were less likely to report experiencing symptoms than younger whites. They reported the fewest total number of symptoms and the fewest individual symptoms common to both studies (headache, fever, nausea/vomiting, and diarrhea) or in the VACS 3 only (dizziness, sleeping difficulty, fatigue, rashes, bloating, and myalgias/arthalgias). Multivariate regression estimates suggest older age predicts a greater likelihood of reporting peripheral neuropathy, weight loss, or hair loss, but a lower likelihood of reporting headaches, depressed mood, white oral patches, or diarrhea. Nonwhites appeared less likely to report symptoms. Age is a determinant of reporting certain symptoms in HIV disease but may be masked or accentuated by other factors such as race.
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PMID:Differences in symptom expression in older HIV-positive patients: The Veterans Aging Cohort 3 Site Study and HIV Cost and Service Utilization Study experience. 1285 57

Gastric neuromuscular disorders encompass a spectrum of dysfunction in nerve and smooth muscle that includes gastric visceral hypersensitivity, gastric dysrhythmias, fundic dysfunction, antral hypomotility, and gastroparesis. Patients with each disorder may present with such vague dyspepsia symptoms as early satiety, upper abdominal discomfort, bloating, or nausea with or without vomiting. A careful history and physical examination may suggest a gastric neuromuscular disorder, but symptoms are nonspecific. Gastroparesis is the most severe form of neuromuscular dysfunction. Such reversible causes of gastroparesis as mechanical obstruction of the stomach and chronic mesenteric ischemia must be excluded. Gastroparesis, gastric dysrhythmias, and hypersensitivity may follow viral infection or be due to degenerative processes that affect the gastric enteric neurons, smooth muscle, or interstitial cells of Cajal. Commonly, the cause of these gastric neuromuscular disorders is unknown. An approach to the diagnosis and treatment of gastric neuromuscular disorders is reviewed, including dietary counseling, drugs, and medical devices.
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PMID:Diagnosis and treatment of neuromuscular disorders of the stomach. 1286 63

Functional dyspepsia (FD) remains a relatively poorly characterized gastrointestinal disorder of unknown etiology that is frequently difficult to manage. A systematic review of the literature relating to food intake and FD is summarized here. Many patients with FD report symptoms after meal ingestion, including fullness, bloating, epigastric pain, nausea, and vomiting, and this has been interpreted as indicative of an underlying "motor disorder of the stomach or small intestine." Such hypotheses are, however, still largely unsubstantiated, and the data that do exist are inconclusive, particularly as few studies have directly examined the temporal relationships between dyspeptic symptoms, meal ingestion, and disordered gastric motility. Moreover, studies attempting to relate symptoms to specific disturbances in gastric motor function have, in most cases, not evaluated symptoms concurrently with the function test, and/or have used suboptimal symptom scoring to quantify symptoms. Furthermore, the term "early satiety" has been used loosely as a symptom, rather than a quantitative measure of food intake. Currently, the most widely accepted mechanism underlying FD is visceral hypersensitivity, which may contribute to both enhanced motor and symptomatic responses to food ingestion. However, the possible contribution of food and dietary habits to the induction and/or exacerbation of dyspeptic symptoms represents a relatively new area-despite frequent reports by patients that their symptoms are often related to food ingestion; this association has not been formally assessed. Dietary assessments have frequently implicated fatty foods in symptom induction, and these findings are supported by laboratory-based studies, particularly the demonstration that FD patients more often experience symptoms after intraduodenal infusions of fat, than glucose. Further studies into the potential role of dietary factors in the induction of dyspeptic symptom are required to establish whether dietary therapies have any place in the management of FD.
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PMID:Diet, food intake, and disturbed physiology in the pathogenesis of symptoms in functional dyspepsia. 1468 60


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