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

Techniques of oesophagojejunal anastomosis were studied in chacma baboons (Papio ursinus ursinus). End-to-end anastomosis utilizing a Roux-en-Y loop and interrupted silk sutures gave the best results. End-to-end anastomosis performed in 3 animals resulted in jejunal volvulus.
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PMID:Oesophagojejunal anastomosis after total gastrectomy. 12 43

When confronted with a chest radiograph demonstrating two large air-fluid levels, one in the retrocardiac mediastinum and the other beneath the left hemidiaphragm, the possibility of gastric volvulus herniating into the thorax should be strongly considered. These patients should have an immediate contrast study for further evaluation.
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PMID:Plain film findings of gastric volvulus herniating into the chest. 17 75

A technique for the isolation of adult Onchocerca volvulus from excised onchocercomata is described. The nodules are incubated in medium 199 containing 1-5 mg collagenase and 0.2 mg gentamicin per ml for 6-48 hours in a waterbath at 30-37 degrees C. A proportion of the worms can be isolated alive.
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PMID:Isolation of living adult Onchocerca volvulus from nodules. 20 61

The authors report five cases of volvulus of the right side of the colon, including 3 with complications, which required segmental colonic resection. They recall the diagnostic and therapeutic problems, emphasising the interest of barium enema, the necessity of early diagnosis, the high level of mortality and the treatment of choice which is right hemicolectomy.
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PMID:[Volvulus of the ascending colon. Apropos of 5 cases]. 20 31

Physical signs and blood changes were studied in horses with artificially produced obstructions of the duodenum and the small colon and simulated volvulus of the ileum. Horses with obstruction of the duodenum had the most violent physical signs and the shortest survival time. Blood changes were an initial rise in pH followed by acidosis, hyperkalemia and a decrease in HCO3 minus, Na+ and C1 minus. Obstruction of the small colon resulted in mild physical signs. The blood parameters recorded were normal. Simulated volvulus resulted in continuous colic. Blood changes were acidosis and hyperkalemia with a continuous decrease in HCO3 minus and C1 minus levels.
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PMID:Intestinal obstruction in the horse. Physical signs and blood chemistry. 23 47

Serum samples from persons who lived in areas where onchocerciasis occurred or who had filariasis were examined with the complement fixation test and the indirect hemagglutination test for the presence of antibodies against crude extracts from Dirofilaria immitis, Onchocerca volvulus, Dipetalonema viteae, and Ascaris suum. The results could be interpreted as follows: 1. The indirect hemagglutination test was more sensitive than the complement fixation test for the demonstration of antibodies in sera from European and indigenous inhabitants of endemic areas. 2. There were no differences between the responses to the four crude worm extracts among the groups of 21 patients with Loa loa, 12 patients with Onchocerca volvulus, 11 patients with Dipetalonema perstans, and 22 patients with clinical filariasis in whom no microfilaria had been found. It was concluded that the examination with crude extracts cannot give any information about the antigens that had caused the stimulation of antibodies.
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PMID:[Immunological diagnosis of filariosis in persons returning from tropical countries and in European and indigenous inhabitants of endemic areas (author's transl)]. 27 33

A case of volvulus of the small bowel with gangrene extending from the duodeno-jejunal flexure to 15 cm from the ileocaecal junction is reported. The complication arose during the second trimester and was successfully treated by resection and end-to-end anastomosis.
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PMID:Volvulus of the small bowel complicating mid-trimester pregnancy. 29 47

Skin snips were taken from 75 people living in four villages of northern Togo. The 7824 microfilariae that emerged were examined by staining for the presence of acid phosphatase. Four distinct patterns of enzyme staining were observed, and descriptions of the stained microfilariae are given. The study confirms the view that a number of biological strains or variants of Onchocerca volvulus coexist in West Africa, and suggestions are made for further research that could result in the practical application of these observations in onchocerciasis control programmes.
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PMID:Preliminary studies on the histochemical differentiation of strains of Onchocerca volvulus microfilariae in Togo. 30 58

The presence of microfilariae of Onchocerca volvulus in the eye is associated with an increased risk of deterioration of existing eye lesions. An opthalmological and parasitological examination of 630 persons was carried out in a hyperendemic focus of onchocerciasis in northern Togo. The prevalence of microfilariae increased in the cornea as well as the anterior chamber up to the age of 40-50 years, then decreased. The prevalence of onchocercal punctate keratitis, on the other hand, showed a peak for the age group 10-20 years. In two-thirds of the cases microfilariae were present in the anterior chamber as well as in the cornea. The relative distribution of microfilariae between the anterior chamber and the cornea did not change with the development of severe anterior lesions but in cases with severe posterior lesions relatively more microfilariae were found in the anterior chamber than in the cornea. In all cases of severe ocular lesions the numbers of microfilariae both in the anterior chamber and in the cornea were increased. The average number of microfilariae in the eye can be used as a parameter to enumerate the severity of ocular onchocerciasis.
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PMID:The microfilarial load in the anterior segment of the eye. A parameter of intensity of onchocerciasis. 30 97

Well over 20 million people in the world are infected with Onchocerca volvulus and it is probable that 200 000-500 000 people are blind as a result of this infection, which is the most important cause of blindness in certain areas of Africa and Latin America.Treatment of the disease is difficult and often produces serious adverse reactions in the patient. Combined use of diethylcarbamazine citrate and suramin is still the most suitable form of treatment. Screening for the early detection of cases at high risk of ocular manifestations must be organized, and their treatment undertaken, if blindness is to be avoided.Prevention of ocular onchocerciasis is feasible, using vector control methods to reduce transmission, but the procedures are costly and may have to be maintained for many years.Research is needed to improve treatment and to find a chemoprophylactic agent or a preventive vaccine.
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PMID:Ocular onchocerciasis. 30 48


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