References: Laxative
Gut. 1995 Jul;37(1):23-9.
Highly variable gastric emptying in patients with insulin dependent diabetes mellitus.
Nowak TV, Johnson CP, Kalbfleisch JH, Roza AM, Wood CM, Weisbruch JP, Soergel KH.
Indiana University Medical Center, Department of Medicine, Indianapolis, USA.
Some diabetic patients--particularly those with nausea and vomiting--frequently have evidence of delayed gastric emptying while other diabetic patients may in fact exhibit accelerated gastric emptying. Whether the presence or absence of symptoms of upper gastrointestinal dysfunction correlated with objective measures of gastric emptying in insulin dependent diabetic subjects was investigated. Twenty one insulin dependent diabetic patients underwent a solid phase gastric emptying scintiscan using in vivo labelled chicken liver. Thirteen patients had symptoms suggestive of gastrointestinal dysfunction (nausea, vomiting, early satiety, or constipation), while eight patients had no gastrointestinal symptoms. Eleven patients had orthostatic hypotension. All patients had been diabetic since childhood or adolescence. As a group, the diabetic patients showed a half time (T50) of gastric emptying (mean (SD) 150.0 min (163.7) that was not significantly different from that of 12 healthy control subjects (148.1 min (62.4)). Those diabetic patients without gastrointestinal symptoms and without orthostatic hypotension, however, showed a gastric emptying half time (70.1 min (41.6)) that was significantly faster than that of the control subjects. Conversely, those diabetic patients with nausea, vomiting, and early satiety (or early satiety alone) showed T50 values that were significantly greater than those of the diabetic patients without these symptoms. No correlation was found between the T50 value and the duration of diabetes, the fasting blood glucose at the time of study, or the respiratory variation in heart rate (E:I ratio). These observations indicate that highly variable rates of gastric emptying occur in insulin de
Ann Surg. 1995 Sep;222(3):402-12; discussion 412-4.
Clinical manifestations of primary hyperparathyroidism before and after parathyroidectomy. A case-control study.
Chan AK, Duh QY, Katz MH, Siperstein AE, Clark OH.
Surgery Service, UCSF/Mount Zion Medical Center, USA.
BACKGROUND: There has been an National Institutes of Health consensus meeting concerning the management of patients with "asymptomatic" primary hyperparathyroidism, yet there is no clear definition of this condition. The authors, therefore, documented the clinical manifestations and frequencies of these manifestations in unselected patients with primary hyperparathyroidism and determined whether these clinical manifestations resolved after parathyroidectomy. METHOD: The authors studied 152 unselected consecutive patients with primary hyperparathyroidism and 132 control patients with nontoxic thyroid disorders who were treated by parathyroidectomy or thyroidectomy, respectively, between January 1986 and June 1991. All patients received a questionnaire during their initial office visits and the same questionnaire again after their operations. Patients were also questioned about their perception of the success of the operation. Eighty percent of the parathyroid patients and 70.5% of the thyroid patients completed the questionnaires, and the mean follow-up time was 20 months. RESULTS: Only 7 (4.6%) patients with primary hyperparathyroidism had no symptoms, and 26 (17.1%) had no associated conditions despite 74.3% of these patients having serum calcium levels less than 12 mg/dL. Symptoms including fatigue, exhaustion, weakness, polydipsia, polyuria, nocturia, joint pain, bone pain, constipation, depression, anorexia, nausea, heartburn, and associated conditions, including nephrolithiasis, and hematuria occurred more often in patients with primary hyperparathyroidism than in the thyroid control patients (p < 0.05). After parathyroidectomy, only eight (5.3%) patients failed to have any improvement in symptoms or associated conditio
Am J Gastroenterol. 1995 May;90(5):748-53.
Physiological tests to predict long-term outcome of total abdominal colectomy for intractable constipation.
Redmond JM, Smith GW, Barofsky I, Ratych RE, Goldsborough DC, Schuster MM.
Department of Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
OBJECTIVE: Total abdominal colectomy (TAC) for intractable constipation has a variable reported success rate that decreases to 50% beyond 2 yr. We hypothesize that this inconsistent outcome can be explained by a more extensive intestinal involvement in some patients. DESIGN: A consecutive sample of patients with intractable constipation had preoperative evaluations that included both upper and lower GI studies. Stool frequency, constipation, diarrhea, abdominal pain, and laxative or enema requirements were compared before and after operation. The study took place in an academic referral center and included 37 consecutive referred patients with severe intractable constipation and colonic dysmotility documented by radiopaque marker studies. INTERVENTIONS: TAC, with ileoproctostomy in 34 patients and ileostomy in three. MAIN OUTCOME MEASURES: Patients with motility abnormalities only of the lower GI tract were diagnosed as having colonic inertia (CI). Those with motility disorders of both the upper and the lower GI tracts were considered to have generalized intestinal dysmotility (GID) with colon predominance. RESULTS: Twenty-one patients had CI, and 16 had GID. Ninety percent of CI patients undergoing TAC had a successful outcome with a mean of 23 bowel movements (BMs)/wk at a mean follow-up of 7.5 yr. Although 88% of GID patients had initial improvement, with a mean of 19 BMs/wk at 6 months, only 13% had prolonged relief. After 2 yr, nine of the GID patients had recurrent constipation, and three had severe diarrhea. CONCLUSIONS: This study has identified two distinct types of colonic dysmotility, CI and GID. It has demonstrated the long-term success of TAC for CI and the importance of uppe
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