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Query: UMLS:C1291077 (bloating)
 1,674 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The effect of a single dose or oral lactase on symptoms, breath hydrogen concentration, and glucose absorption in lactose-intolerant subjects challenged with lactose was studied. Volunteers underwent a lactose challenge test; those whose breath hydrogen concentrations increased 20 ppm or more and who met other criteria were admitted as subjects. After fasting, the subjects were given three chewable lactase tablets (total lactase dose, 9900 FCC units) or placebo tablets in a randomized, double-blind, crossover manner. The subjects also consumed 8 oz of whole milk in which 37.5 g of lactose powder was dissolved (total lactose content, 50 g). The washout period between lactose challenges was at least one week. Breath hydrogen and plasma glucose concentrations were measured before and at intervals after the challenges, and the subjects completed symptom-evaluation questionnaires every eight hours for four days. Twenty-four subjects completed the study. The maximum mean breath hydrogen concentration was significantly lower after lactase treatment than after placebo treatment. In 21 subjects, the area under the hydrogen concentration-time curve (AUC) was lower after lactase than after placebo; three subjects had hydrogen AUCs more than 300 ppm.hr lower. There were no significant differences in plasma glucose levels. Subjective ratings of the severity of abdominal cramping, belching, flatulence, and diarrhea were lower during the first eight hours after challenge in lactase-treated subjects; ratings for bloating were lower during the next eight hours. Single doses of a chewable lactase tablet reduced the concentration of expired hydrogen and symptoms of lactose intolerance after a lactose challenge.
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PMID:Effect of a single dose of lactase on symptoms and expired hydrogen after lactose challenge in lactose-intolerant subjects. 153 29

One hundred and forty-two female patients consulting a prosthodontic clinic for masticatory disturbances and suffering from mandibular ridge atrophy were systematically interrogated for the presence of digestive symptoms. Eight-five subjects (60% of the studied population) reported current digestive complaints; 32 had abdominal pain (burning sensation, bloating or cramps), 12 presented stool transit alteration (constipation or diarrhoea) and 41 reported both abdominal pain and stool transit abnormalities. A prospective evaluation of the digestive symptoms was obtained following surgical reconstruction of the atrophic mandibular ridge and insertion of functional dental prostheses to correct masticatory dysfunction. One year after jaw surgery, 62 of 73 patients (85%) initially complaining of abdominal pain reported symptomatic improvement of their condition, while a marked amelioration in stool habits was noted in 34 of 53 patients (64%) initially suffering intestinal transit alteration. The high incidence of digestive complaints in our patients with dental deficits and the improvement of these symptoms after jaw reconstruction support a case for masticatory failure in the development of digestive symptoms.
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PMID:Gastrointestinal symptoms and masticatory dysfunction. 154 71

Myxedema megacolon is rare; usually, it manifests with abdominal distention, flatulence, and constipation. Herein we describe a 72-year-old man who had intermittent diarrhea, bloating, and abdominal pain for more than a year. Cultures of stool specimens for Clostridium difficile enterotoxin were variably positive and negative. Colonoscopic biopsy specimens were thought to be consistent with chronic ischemia. Thyroid function tests showed severe hypothyroidism; the patient's symptoms resolved with thyroid hormone replacement. We hypothesize that gross dilatation of the colon, attributed to myxedema, was followed by intestinal ischemia and complicated by recurrent episodes of pseudomembranous colitis. A review of the relevant literature is provided. This unusual manifestation of myxedema should be considered in the differential diagnosis when a patient has diarrhea, bloating, and abdominal pain.
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PMID:An unusual case of myxedema megacolon with features of ischemic and pseudomembranous colitis. 154 53

Giardia lamblia are protozoan parasites which cause human intestinal disease. The life cycle has a multiplying intraduodenal trophozoite and an excreted cyst. Infection occurs after cyst ingestion from faecally contaminated water or by direct faecal-oral transmission in situations of poor sanitary standards, but the zoonotic nature of giardiasis is debated. The pathophysiology may arise from enzyme or active transport deficiencies, synergy with intestinal bacteria or an immunopathological process. Diagnosis is made by microscopic identification of cysts or trophozoites in small bowel samples or faeces. Symptoms are acute with diarrhoea (without blood), abdominal cramps, bloating and flatulence. The treatment of choice is either metronidazole or tinidazole. No vaccine or drug prophylaxis exists, and measures to avoid cyst ingestion should be undertaken.
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PMID:Giardia lamblia as an intestinal pathogen. 159 70

For a minimum of one month (mean, 54 days), 287 infants and children less than 8 years of age were fed an isolated soy-protein formula. Prior to entry into the study, a cow's milk formula was being fed to 71%, a soy formula to 9%, and cow's milk or other formulas to 20%. Intolerance to cow's milk was reported in 35% of the patients, symptoms indicative of cow's milk intolerance in 23%, diarrhea or gastroenteritis in 18%, a family history of allergy in 13%, and insufficient weight gain, intolerance to other formulas, or constipation in 11%. The patients showed normal increases in weight and length during the study. A significant decrease in the following symptoms were reported in the patients from before to after treatment: abdominal cramps, bloating or gas, colic, diarrhea, fussiness, rashes or eczema, spitting up, waking up crying at night, wheezing, and vomiting. It is concluded that, while receiving soy formula, infants and children continued to thrive normally and that the formula was well tolerated. After receiving soy formula, the frequency of undesirable feeding-related symptoms was reduced in the majority of infants and children.
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PMID:Tolerance of a soy formula by infants and children. 161 46

The major aims of medical therapy in irritable bowel syndrome (IBS) are: a) to ameliorate symptoms (pain, bowel movement abnormalities, bloating) and b) to improve psychological problems of the patients. The first step of IBS therapy is the diet. In fact some forms of IBS can be ascribed to food intolerance. When abdominal pain, meteorism and constipation are the main symptoms, treatment with high-fiber diet, antispastic and antimuscarinic drugs is indicated. Sometimes amitriptyline, an antidepressant which also shows anticholinergic and analgesic properties, can be helpful. When diarrhoea is prevalent, the most effective drug is represented by loperamide. If diarrhoea is related to meal ingestion, antispastic or antimuscarinic drugs can be successfully used. In the case of diarrhoea related to documented cholorrhoea, cholestyramine can be of benefit. Furthermore, there are some resistant cases, secondary to striking psychological problems that require sedatives and antidepressant drugs and sometimes, psycho and/or hypnotherapy.
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PMID:Therapeutic strategy for the irritable bowel syndrome. 166 28

The safety and efficacy of highly selective vagotomy were assessed in a prospective series of 500 patients who underwent the operation during a 15-year period. There was no peroperative or immediate postoperative mortality. None of the 22 late deaths was attributable to the operation. In six cases complications prolonged the hospital stay beyond 21 days, requiring a second laparotomy in four. The rate of ulcer recurrence was 18.5% by 15 years. Bloating was the commonest long-term complication (8.8%), but half of these patients regarded the operation as successful. Less common were dumping (5.4%), diarrhoea (3.8%) and gastric stasis (1.4%). Revisional surgery was performed on 37 patients--for recurrent ulcer in 28, for gastric stasis in seven and for perforation in two. Although almost 20% of the reviewed patients continue to require regular or frequent medication, the study shows that highly selective vagotomy can be therapeutically effective for duodenal ulcer, particularly in preventing haemorrhage and perforation in patients who have previously suffered these complications. Above all it is a safe operation with low long-term morbidity.
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PMID:Highly selective vagotomy--a safe operation for duodenal ulcer. Immediate and long-term complications and sequelae in 500 patients. 167 80

Gastrointestinal bloating is a common complaint met within the general practitioner's office. The most important cause of this symptom is an increase in the volume of gas in the gastrointestinal tract. Differential diagnoses include aerophagia, ingestion of gas-producing foods, gastric hypersecretion, bacterial overgrowth in the small intestine, disordered gastrointestinal transit, malabsorption or maldigestion of carbohydrates. In addition, nonulcer dyspepsia and the irritable bowel syndrome must be excluded. The diagnosis is based on a history of eructation, heart burn, flatulence and diarrhea, dietary habits, physical examination, laboratory analysis and apparative diagnostic measures. Therapy depends on the underlying cause of the disease.
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PMID:[Meteorism]. 191 70

In June 1983, an outbreak of waterborne giardiasis occurred in a group of 93 university students and faculty participating in a geology field course in Colorado. All cases occurred in one subgroup of persons who were heavily exposed to untreated stream water on a field trip, and the risk of illness was strongly related to the amount of untreated stream water consumed. The median incubation period from a brief exposure to the first symptom was 7 days. The authors compared symptoms and stool sample results among 31 Giardia-positive persons in the exposed group and 36 Giardia-negative participants in an unexposed group to assess several case definitions for acute giardiasis. Diarrhea, abdominal cramps, flatulence, foul-smelling stools, nausea, excessive tiredness, bloating, anorexia, and chills were each significantly more common in the first group than in the second. A giardiasis case definition of 5 days or more of diarrhea--the definition used in many epidemiologic studies of giardiasis--had a specificity of 100 percent but a sensitivity of only 32.2 percent compared with a definition based on results of stool examinations. When a case was defined as an illness lasting 7 days or more, with a combination of two or more of six symptoms (diarrhea, flatulence, foul-smelling stools, nausea, abdominal cramps, and excessive tiredness), sensitivity rose to 73 percent, with a specificity of 88 percent. Such a case definition may be an improvement over that of 5 days of diarrhea, especially in outbreaks where there is good laboratory documentation that Giardia is the etiologic agent. The definition should be validated in other outbreaks and in situations where giardiasis must be distinguished from gastrointestinal disease caused by other agents.
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PMID:Acute giardiasis: an improved clinical case definition for epidemiologic studies. 199 3

Lactose-intolerant children manifest diminished or nonexistent intestinal lactase activity, resulting in flatulence, abdominal pain, and diarrhea. To assess the hydrolytic capability of lactase-containing tablets taken immediately before oral lactose challenge, we studied 18 children previously identified as being lactose intolerant and having no underlying organic gastrointestinal disease. Subjects had a mean (+/- SEM) age of 11.4 +/- 3.4 years; 72% were male. At time of the study, lactase-containing tablets or placebo tablets were ingested (double-blind) immediately before drinking a solution of lactose. Breath samples were obtained for hydrogen analysis at 30-minute intervals during a 2-hour period, and clinical symptoms were monitored. In lactose-intolerant patients, hydrogen production was significantly greater following placebo (maximum hydrogen excretion, approximately 60 ppm) compared with lactase-containing tablets (maximum hydrogen excretion, 7 ppm). Increased hydrogen production was associated with clinical symptoms including abdominal pain (89% of subjects following placebo ingestion), bloating (83%), diarrhea (61%), and flatulence (44%). These results indicate, therefore, that coingestion of lactose and lactase-containing tablets significantly reduces both breath hydrogen excretion and clinical symptoms associated with lactose intolerance.
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PMID:Beta-galactosidase tablets in the treatment of lactose intolerance in pediatrics. 212 19


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