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Query: UMLS:C0042961 (volvulus)
 4,305 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Long-standing complete obstruction of the superior mesenteric artery and vein and recurrent gastrointestinal bleeding from varices within the bowel were encountered in a child as a complication of midgut malrotation and volvulus. This condition is unusual, but should be considered in cases of gastrointestinal bleeding, or when small bowel biopsy is contemplated for the evaluation of diarrhea or malabsorption in cases of malrotation.
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PMID:Mesenteric vascular occlusion and varices complicating midgut malrotation. 31 54

Volvulus of the cecum, a rare postoperative complication, occurred on the first postoperative day following left nephroureterectomy in a volunteer kidney donor. Postoperative cecal volvulus can occur after practically any operation, may present insidiously like adynamic ileus, but may progress rapidly to gangrene of the involved intestine. Etiologic factors, diagnosis, and treatment are reviewed briefly.
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PMID:Volvulus of the cecum following transplant donor nephrectomy. 33 55

Serum samples of humans and animals with Trichinella infection of different duration and severity were analysed for Trichinella antibodies by four different serological methods. The indirect immunofluorescence test and the indirect haemagglutination test proved to be the most sensitive ones. Complement-fixation reaction gave the poorest results. In fresh Trichinella infections the heterologous antibody against cercaria of S. mansoni was more strongly developed than the homologous antibody which is effective in the microprecision test on Trichinella larvae. Although the animals deliberately infected also had, at the beginning of infection, a marked reaction to cercaria, this test became negative earlier than the microprecipitation test. Differentiation of Trichinella from Schistosoma infections is serologically possible without difficulty by means of adult schistosomes. The cross-reaction observed between T. spiralis and various Filaria types can be differentiated with adult O. volvulus as antigen.
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PMID:[Demonstration of trichinella antibodies (author's transl)]. 35 93

It is proposed to search if by immunological means it is possible to distinguish eosinophilia produced by the filaria Onchocerca volvulus from other eosinophiliae. The proposed methods also seem to allow the detection of the presence of the specific antibodies in other hematic cells.
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PMID:[Suggestion for the investigation of eosinophilia caused by filaria Onchocerca volvulus]. 37 44

Report of survey in Bamendjin dam area indicates that 25 p. 100 of the population have a blood smear positive for malaria (P. falciparum) and 80 p. 100 have a positive indirect immunofluorescent test for malaria. The vector is A. funestus. In male inhabitants 23,2 p. 100 of the snip-biopsies are positive for O. volvulus and 40 p. 100 of the indirect immunofluorescent test are positive. In female inhabitants the respective ratios are 14,4 p. 100 and 48,8 p. 100. There is no urinary or intestinal schistosomiasis in this area but specimens of potential vectors have been detected.
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PMID:[Epidemiological study of onchocerciasis and malaria in Bamendjin dam area (Cameroon). Malacologic fauna and risks of schistosomian introduction (author's transl)]. 39 36

Using IFAT, it has been shown that isolated egg-shells and uterine fluid of Dipetalonema viteae are the most potent antigens in heterologous systems using human sera from patients infected with Wuchereria bancrofti, Onchocerca volvulus and Loa loa, as well as in homologous systems using sera from animals infected with D. viteae. It is suggested that these antigens are unlikely to be highly species-specific, and that anatomical isolation of antigens is a necessary prerequisite to immunochemical analysis aimed at the preparation of a "pure" antigen.
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PMID:Antigenic activity in adult Dipetalonema viteae in the indirect immunofluorescent test against sera from filariasis patients--the immunofluorescent histological search for "pure" antigen. 39 10

This report concerns the host's reactions to the presence of the parasite both in the course of the natural disease and during drug treatment. The various stages of Onchocerca volvulus are discussed in terms of the type of tissue reaction seen. The discussion then turns to basic hypotheses concerning the etiology of these reactions, emphasis being placed on the fact that while pathological changes are considerable in some locations there is a remarkable lack of reaction in others. Some of the mechanisms possibly involved in this apparent absence of host response are discussed, including anti-complement factors, poor antigenicity, acquisition of host antigen, immune tolerance, and blocking antibodies. In any study of the inflammatory response it is recommended that critical evaluations be made of histological material, haematological studies, the definition of the antigenic nature of O. volvulus, characterization of immunological reactivity of patients, and the definition of the migratory pathways of the parasite.The marked host reactions seen following chemotherapy, especially those related to the interaction of the drug diethylcarbamazine with microfilariae, are discussed at some length. The etiology of these reactions is considered and recommendations are made for the experimental elucidation of the mechanisms involved. Emphasis is placed on the necessity for detailed sequential histopathological and immunopathological studies in the definition of the tissue lesions found in onchocerciasis. Characterization of these lesions will assist greatly the approach to control of the adverse reactions seen during treatment.The use of anti-inflammatory agents in clinical trials is discussed and comments are made concerning the most suitable clinical situations for testing drugs and the types of drug that should be tested.
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PMID:Inflammatory reactions in onchocerciasis: a report on current knowledge and recommendations for further study. 39 50

Volvulus of the transverse colon is an uncommon event but results in mortality or significant morbidity relatively more often than cecal or sigmoid volvulus. Two cases are presented with emphasis on incidence, predisposing factors, clinical presentation, and radiologic examination. The need for early diagnosis and surgical intervention is stressed.
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PMID:Transverse colon volvulus: case reports and review. 40 92

Ischemic colitis following conservative management of sigmoid volvulus is documented in four cases. Repeat barium enema studies in these patients showed characteristic "thumbprinting", transverse ridging, and mucosal ulcerations within a segment or the entire length of the sigmoid, lasting up to 7 days after nonoperative decompression. The development, extent, and severity of the ischemic changes seem to correlate with the degree of volvulus, blockage of venous and arterial circulation in the sigmoid mesocolon, and increased intraluminal pressure.
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PMID:Ischemic colitis associated with sigmoid volvulus: new observations. 40 85

Diverticulosis of the jejunum is an uncommon condition. We found four patients with such diverticula among 40,341 hospital admissions. All four patients presented with acute volvulus of the small bowel. It is suggested that the diverticula bearing segment becomes heavier due to the diverticula and the semisolid jejunal contents consisting of roughage, millet and cereals in the staple diet of our patients. Both factors contribute to small bowel volvulus. Jejunal diverticula may be missed because they are buried between the leaves of mesentery or adherent loops of jejunum. With a patient has vague abdominal symptoms, the possibility of jejunal diverticula should be considered.
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PMID:Jejunal diverticulosis. 41 96


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