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Biomedical subjects

C Matuchansky

Publications and source records attributed to C Matuchansky.

At least 55 records · Page 3Linked to original sources
PubMed1989

[Exploration of the adult patient with chronic diarrhea].

This article describes the clinical approach to the aetiological diagnosis of chronic diarrhoea in adults, with a rational ranking of investigations starting with methodical questioning and careful physical examination. The purpose of the clinical stage is to find out whether the diarrhoea is truly chronic--and not the paradoxical diarrhoea so common in constipated subjects--, to evaluate its repercussions on nutrition and hydration, to try and determine its type (malabsorption or watery diarrhoea) and to elicit an obvious or probable cause. The paraclinical stage includes screening or confirmatory examinations separating watery diarrhoeas (due to colonic hypermotility or secretory of organic origin--mainly colonic, humoral or neurological--or functional origin) from malabsorption diarrhoeas; concerning the latter, the use respiratory tests with hydrogen is emphasized and conventional tests (D-xylose, assay of faecal fats and nitrogen) are mentioned.

Adult↗
PubMed1989

Severe hypoxemia in a case of midgut carcinoid tumor.

A 33-year-old woman treated for carcinoid tumor developed severe hypoxaemia. This hypoxaemia may have been related to an extracardiac right-to-left shunt. The pathogenic role of vasoactive agents is discussed and comparisons made with cirrhosis-associated hypoxaemia.

Adult↗
PubMed1988

[Home parenteral nutrition for adults. Results of a multicenter survey in France].

Home parenteral nutrition (HPN) is a growing therapy in North America and Europe. This first multicenter retrospective study of HPN in France has collected data on 81 patients sent home before December 31st, 1985. Intestinal failure, secondary to short bowel syndrome, small bowel stenosis or fistula, was the main indication for HPN. In 95 p. 100 of the cases, the clinical nutritional status during HPN was either normal or subnormal. The annual incidence of catheter change for technical complication was 0.78 and the mortality rate was 1.2 p. 100. Social rehabilitation was recovered during HPN in 60 p. 100 of patients. Thirty percent of the patients died of their primary disease during HPN but 43 p. 100 were off treatment, and 27 p. 100 were on HPN at the end of the study. The cost of HPN was reduced by 64 p. 100 in comparison with the cost of parenteral nutrition carried out in hospital.

Adult↗
PubMed1988

Diffuse small intestinal lymphoid infiltration in nonimmunodeficient adults from Western Europe.

In two white adults born, raised, and living in central France and presenting with long-lasting malabsorption, massive and diffuse lymphoid infiltrate of the lamina propria associated with crypt scarcity was found along the whole small bowel. It was mostly composed of mature lymphocytes, focally mixed with plasma cells and reactive germinal centers. There was no evidence of celiac disease, systemic or intestinal immune deficiency or alpha-chain disease, overt lymphoid malignancy, or stagnant-loop syndrome. By immunofluorescence the infiltrate was constituted in 1 case of polyclonal B cells and, in the other, of a large majority of T11, T8, T10, and class II-positive T cells associated with a population of monotypic B cells. A gluten-free diet and parenteral nutrition proved ineffective. A dramatic and protracted clinical response was observed in both patients after the onset of oral tetracycline therapy, and still persists after 8 and 5.5 yr, respectively, together with morphologically unchanged small bowel infiltrate. These cases may be the equivalents, in people from Western developed countries, of the predominantly lymphocytic variety of the immunoproliferative small intestinal disease described in people from developing countries.

Adult↗
PubMed1988

[Biological hepatic abnormalities, cholestatic jaundice and hospital artificial nutrition. A comparative study in adults with cyclic total parenteral nutrition and enteral nutrition].

Two hundred and fourteen hospitalized nonsurgical, nonacutely stressed adult patients, who were receiving, either prolonged (greater than 21 days) cyclic total parenteral nutrition (n = 106) or enteral nutrition (n = 108), including lipids, for gastrointestinal disorders, and who were free of prenutrition liver function test abnormalities were prospectively investigated for hepatic dysfunction: 41 p. 100 and 17 p. 100 of parenteral and enteral nutrition patients, respectively, developed abnormalities of liver function tests after 25 +/- 5 and 21 +/- 4 days (p less than 0.01). This prevalence was unrelated to catheter sepsis, blood transfusion, caloric load, site of digestive disease or initial nutritional status, and decreased by 50 and 40 p. 100 before the end of total parenteral nutrition and enteral nutrition respectively. In the parenteral nutrition group, separate infusion of lipids, as compared with mixed infusion, was associated with a lower rate of hepatic dysfunction (29 vs 54 p. 100; p less than 0.02). Nine (8.5 p. 100) parenteral nutrition but no enteral nutrition patients developed severe cholestatic jaundice, 47 +/- 39 days after the onset of liver function test abnormalities; no identifiable cause excepting parenteral nutrition per se was found in 3 patients with diffuse obstructive small intestinal disease; jaundice led to death from noncirrhotic hepatic failure in the 2 patients who remained totally parenteral nutrition-dependent.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1986

Digestive tract and renal small vessel hyalinosis, idiopathic nonarteriosclerotic intracerebral calcifications, retinal ischemic syndrome, and phenotypic abnormalities. A new familial syndrome.

A new familial syndrome that affected 3 of 7 siblings is described. All 3 patients were young women with a very peculiar phenotype, poikilodermia and hair greying, and idiopathic nonarteriosclerotic cerebral calcifications. Pathological studies demonstrated a marked and progressive hyalinosis involving capillaries and often arterioles and small veins of the digestive tract, kidneys, and calcified areas of the brain. Using electron microscopy, we found that the hyalin substance in the intestinal capillaries consisted of several concentric layers of basal membrane-like deposits within a finely granular fluffy material. Huge deposits of this material were present in the subepithelial and mesangial spaces of the kidneys. Endothelial cells and, in the kidneys, mesangial cells were markedly abnormal, and a true mesangiolysis pattern was present in 2 patients. The clinical and biologic expression of these vascular changes was variable. Diarrhea, rectal bleeding, malabsorption, and protein-losing enteropathy were the main and lethal clinical problems in the proband. Hypertension appeared in the early stage of a second pregnancy in 1 sister, and mild proteinuria was found in all 3 affected patients. Peripheral retinal ischemic syndrome and chorioretinal scars were found in the ocular fundi of both affected sisters of the proband. A subarachnoid hemorrhage, due to a right sylvian aneurism, also occurred in both sisters and was lethal in 1 sister. None of the known causes of distal vessel hyalinosis could be ascertained.

Adult↗
PubMed1986

Parenteral nutrition in inflammatory bowel disease.

Nutritional support, administered via the enteral or parenteral routes, has been widely introduced in the treatment of inflammatory bowel disease over the past decade. The precise place of total parenteral nutrition, however, as a sole or adjunct treatment of inflammatory bowel disease, has yet to be defined.

Colitis, Ulcerative↗
PubMed1986

[Continuous ambulatory enteral feeding in hospitalized adults: prospective experience in 98 patients].

The goal of this study, which describes a personal technique of continuous enteral nutrition (CEN) in hospitalized adults on an ambulatory basis, was: to prospectively evaluate, over a 2-year period, its efficacy and tolerance in 98 patients requiring CEN for at least 15 days; to compare its efficacy and tolerance with those of conventional non-ambulatory CEN on a prospectively randomized basis in 16 patients. Ambulatory CEN was given at the rate of 35-45 kcal/kg/d (lipids: 35 p. 100; carbohydrates: 45 p. 100); during day-time, a portable system, including pump, tubes and low-viscosity nutrient solutions, allowed ambulation. Ninety-eight consecutive patients with a minimal level of physical autonomy were treated for intestinal (n = 47), pancreatic (n = 20), esophagogastric (n = 17) diseases, or for malnutrition of other causes for an average of 38 days (15 to 141). The average weight gain (m +/- SD) was 1.2 +/- 5.5 p. 100 of ideal body weight (IBW) and the average nitrogen gain was 0.7 +/- 3.8 g/24 h; weight gain proved significantly lower in patients with inflammatory bowel disease receiving steroids. The clinical tolerance proved excellent, except for 5 cases of transient diarrhea and 9 cases of reposition of the nasogastric tube. A decrease in cholesterolemia below 3.9 mmol/l was noted in 25 p. 100 of patients during CEN. No significant difference between ambulatory and non-ambulatory CEN was observed in terms of evolution of body weight and other anthropometric variables, nitrogen balance, albuminemia, and oxygen consumption; conversely, the CEN experience, evaluated by patients on analogical visual scales, was significantly better endured in the ambulatory group.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1985

[Relations between physical exertion and protein-energy metabolism. Application to nutritional support of hospitalized patients].

The relationship between physical activity, nutritional requirements and protein-energy metabolism is well-established. However, and contrary to bedside practice at home, non-ambulatory techniques of enteral or parenteral nutrition are often used in hospitalized patients, even those who are able to move about. The purpose of the present study is: (a) to review the relationship, as we know it at present, between physical activity and protein metabolism in both normal subjects and patients with denutrition, and (b) to demonstrate that using from the start, or as early as possible, ambulatory techniques of enteral or parenteral nutrition does represent, both physiologically and psychologically, a decisive step forward in the care of hospital patients.

Amino Acids↗