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Biomedical subjects

D Regent

Publications and source records attributed to D Regent.

At least 55 records · Page 3Linked to original sources
PubMed1977

[Esophageal localizations of Crohn's disease].

Oesophageal localisations of Crohn's disease are perhaps not as rare as is classically supposed. The chance discovery of an oesophageal localisation of Crohn's disease led the authors to undertake routine study of the oesophagus in their last 18 patients suffering from the disorder. Each patient underwent endoscopic examination of the oesophagus with multiple biopsies. In 3 of them an oesophageal localisation of Crohn's disease could be demonstrated histologically with in addition, evidence of an epithelioid granuloma in 2 patients out of 3. The value of endoscopic biopsy thus appears to be certain in the diagnosis of this localisation, the influence of which on the course of the disease is not precisely known.

Adolescent↗
PubMed1976

[Use of Dodger filters in osteoarticular radiology].

Dodger filters represent considerable progress in the harmonization of the contrast in radiography by modulation of the incident Y-ray beam. The originality of these filters is related to three factors: the mobility of the filter elements, their shape, and in particular the presence of a specific optical system that makes it possible, by demonstrating the filter lines with a luminous ray, to predict and adapt the attenuation effects obtained. Osteo-articular radiology can now be viewed in a new light, as it is possible with Dodger filters to obtain on a single fim, valid images of the whole of the bony structure of a region as well as of the corresponding soft tissues.

Arthrography↗
PubMedDate not supplied

An unusual case of hip septic arthritis due to Bacteroides fragilis in an alcoholic patient.

We describe a 53-year-old alcoholic man who presented with hip septic arthritis due to Bacteroides fragilis. This arthritis involved a severe destruction of the femoral head, which was completely devitalized. Recovery was achieved after 4 months of antimicrobial therapy with imipenem/cilastatin plus metronidazole, surgical debridement of the necrotic tissues and four sessions of hyperbaric oxygen.

Alcoholism↗
PubMedDate not supplied

Periesophageal mediastinal fibromatosis.

We report two cases of aggressive fibromatosis of the mediastinum with esophageal involvement in adults. CT showed the posterior mediastinal mass involving the esophagus. In both cases, surgical resection was not feasible. Histopathologic examination showed a fibrous tissue. The patients died two years later.

Adult↗
PubMedDate not supplied

Alveolar echinococcosis of the liver: MR findings.

Nineteen cases of proven hepatic alveolar echinococcosis were examined by magnetic resonance (MR) and the results were compared with CT. Fibrous and parasitic tissue showed low signal both on T1- and, generally, on T2-weighted images. In a few cases a high signal on T2-weighted images may be observed, due either to central necrotic zones or to small peripheral cysts. Central necrosis was more easily identified by MR than by CT. However, MR seemed to be less effective than CT in allowing us to reach a positive diagnosis, due to its inability to show microcalcifications. In addition, MR may not reveal small lesions. In most cases T1-weighted images revealed more clearly than CT did the margins of the lesions and the hepatic extension, especially to hepatic veins, vena cava, and perihepatic spaces.

Echinococcosis, Hepatic↗
PubMedDate not supplied

MR patterns of dialysis arthropathy.

Ten patients (average age 51 years) on long-term hemodialysis (average duration 13.5 years) were examined by magnetic resonance (MR) (all cases) and CT (five cases) for cystic radiolucencies of the wrist, shoulders, and hips. MR and CT revealed more lesions of smaller size than plain films and both showed a constant communication with the joint space. Synovial hypertrophy was generally absent or very mild even in the case of large osseous erosions. The MR analysis of the content of the lesions in the wrist was quite variable: low signal on T1- and T2-weighted images (12 of 24), low signal on T1- and high signal on T2-weighted images (10 of 24), and high signal on T1- and T2-weighted images (2 of 24). The patterns of transplanted (four cases) or ungrafted (six cases) patients were indistinguishable. These results suggest an articular origin of the lesions, but different from synovial processes such as rheumatoid arthritis, and confirm their probable multifactorial pathogenesis.

Female↗
PubMedDate not supplied

[Cost of medical imaging practices in acute abdominal syndromes].

OBJECTIVES: To describe the costs of medical imaging practices in the diagnosis management of acute abdominal pain (AAP). METHODS: Medical imaging techniques until decision for treatment were prospectively recorded in patients presenting with AAP. Direct costs used hospital analytic accountability. Time of human resources involved was also surveyed prospectively. RESULTS: In 122 adult patients (2.3 examinations on average) before treatment decision making, the more frequent practices were: initial plain abdomen x-ray followed by tomodensitometry (36.8%), by echography or endoscopy (17.2%), plain abdomen solely (19.6%) or initial abdominal tomodensitometry (12.3%). Direct costs ranged from 977 to 1073 FF for practices with initial plain abdomen x-ray, and from 996 to 1150 FF with initial tomodensitometry. It ranged from 808 to 880 FF when the treatment decision was surgery, and 300 FF higher when it was medical. CONCLUSION: Differences in costs assessed for practices were very narrow. Such information should be taken into account to determine cost-effective strategies, and to built up reference guidelines.

Abdomen, Acute↗
PubMedDate not supplied

Influence of sulfasalazine on established collagen arthritis in rats.

Collagen induced arthritis (CIA) in rats is an experimental model that is characterized by an erosive synovitis associated with periostitis and both peripheral and axial ossifying enthesopathy. The influence of long-term therapy with sulfasalazine (80 mg/day on weekdays) on established CIA in Wistar Furth rats was investigated. Clinical and X-ray examination showed a significant improvement in the joint lesions of the uninjected paws in the treated rats as compared to controls. This effect was, however, delayed. On the other hand, periosteal new bone formation and caudal enthesopathy (spondylodiscitis) were not altered by the treatment.

Animals↗
PubMedDate not supplied

[Study of the small bowel and mesentery in Crohn's disease: comparison of ultrasonics, x-ray computed tomography and small bowel transit in 18 patients].

The advantages of tomodensitometry and ultrasonography were compared with those of small bowel series in Crohn's disease of the small bowel in 18 patients. These two examinations give results which are inferior to those of small bowel series, for the positive diagnosis and the evaluation of the intraluminal extension of the disease, since their sensitivity was only 60 p. cent in identifying the pathological loop. On the contrary, their advantage lies in the evaluation of the intraluminal extension of the disease, which was correctly demonstrated with ultrasonography in 22 p. cent of cases, and tomodensitometry in 45 p. cent. This confirms the supplementary value of these two examinations in the study of the mesenteric involvement of the disease, screening of abscesses, and makes desirable a prospective evaluation of the influence of mesenteric abnormalities on the prognosis and surgical indications.

Adolescent↗
PubMedDate not supplied

[Stress fractures of the pelvis].

Stress fractures of the pelvic ring should be suspected everytime a patient complains of hip pain. These stress fractures are more likely to occur in elderly, obesity, rheumatoid arthritis, osteoarthritis of the hip and after total hip replacement. A bone scan should be performed for early diagnosis, for roentgenolographic evidence of stress fracture often one ago two or three weeks behind the onset of symptoms.

Adult↗
PubMedDate not supplied

[Treatment of sub-levator rectocele by transrectal approach. Value of the automatic stapler with linear clamping].

Surgical treatment of rectocele causing outlet blockage is still a subject of controversy. A retrospective study of eight rectocele repairs endorectally using a surgical stapling device done over a two years period was performed. The most common indication was constipation. All patients underwent in the preoperative period complete physiologic examination including defecography, anorectal manometry, electromyography and colonic transit studies. All patients underwent colonoscopy to exclude an obvious physical disorder. There was no postoperative morbidity and the mean hospital stay was four days. Good functional results were obtained in seven patients with a one year follow-up. Endorectal resection using a stapling device is both a simple and effective technique to treat rectocele associated with difficulty in evacuation.

Adult↗