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Biomedical subjects

H Nahum

Publications and source records attributed to H Nahum.

At least 127 records · Page 7Linked to original sources
PubMed1979

[False tumor of the posterior mediastinum in a case of portal hypertension (author's transl)].

A man of 37 years of age developed portal hypertension which was observed on radiological examination as a mediastinal opacity having the appearance of a tumor. No oesophageal varices were seen on barium meal examination or by endoscopy. A smooth liver was seen during laparoscopy. Pre-operative hemodynamic studies showed that there was no sinus block. Thoracotomy revealed an aneurysm of the azygos veins. Exploratory laparotomy after coelio-mesenteric arteriography confirmed the diagnosis of diffuse nodular hyperplasia of the liver, cirrhosis, and portal hypertension. The findings in 16 cases of mediastinal opacity from portal hypertension reported in the published literature are discussed.

Adult↗
PubMed1979

[Use of cerebral computer tomography for the diagnosis of multiple sclerosis].

The authors describe computer tomography findings in multiple sclerosis (MS)), and attempt an evaluation of the value of cerebral computer tomography for the diagnosis of this disease, especially those forms in which the clinical diagnosis is uncertain. A total of 33 patients, 15 men and 18 women, were studied. According to McAlpine's criteria, 21 patients had established MS, 2 were probably MS cases, and the other 10 were possible cases of the disease. The scanner used was an EMI 1010 apparatus giving 13 mm thick sections, with a matrix of 160 X 160. A contrast medium was injected systematically. Abnormal computer tomography results were noted in 28 of the 33 patients, including one or more low density areas in the white substance in 26 patients, taking up of the contrast medium after injection in 10 patients, and cerebral atrophy in 24 patients. Cases where only one of these anomalies was present are rare, and the various anomalies noted on computer tomography are usually associated in varying proportions. In most cases, the computer tomography findings were not related to any specific clinical picture. In cases of established MS, computer tomography can provide information on the extension and progression of the lesions at the time of examination. Out of the 12 cases in which clinical diagnosis was uncertain, 9 presented abnormal findings (low densities and/or taking up of contrast medium); the level of CSF gamma-globulins was normal in 4 of these 9 patients; visual evoked potentials were not altered in the 5 out of these 9 patients studied. In 3 patients with medullary signs, several low cerebral trunk and white substance of the cerebral hemispheres. When diagnosis is uncertain, cerebral computer tomography is the method of choice for demonstrating latent MS lesions of a certain type: it complements neurophysiological studies (visual, auditory, and somesthesic evoked potentials), used at the present time for the diagnosis of MS by exploration of the optic tracts and cerebral trunk.

Adult↗
PubMed1978

The danger of "yellow dyes" (tartrazine) to allergic subjects.

Oral administration of 50 mg tartrazine to 122 patients with a variety of allergic disorders caused the following reactions: general weakness, heatwaves, palpitations, blurred vision, rhinorrhoea, feeling of suffocation, pruritus and urticaria. There was activation of the fibrinolytic pathway as shown by reduction of plasminogen with high pre-kallikrein and low kallikrein values. Reduction in complement activity (CH50) was seen in three out of sixteen reactions.

Azo Compounds↗
PubMed1977

[Radiological exploration of the Budd-Chiari syndrome. Study of 13 cases].

Using 13 cases of Budd-Chiari syndrome, the authors describe their method of radiological investigation in order to reach a positive and sometimes aetiological diagnosis. Hepatic venous thrombosis can be confirmed only on the basis of findings at hepatic phlebography. Cavography, which precedes retrograde catheterisation of the hepatic veins, provides only presumptive evidence and sometimes reveals total thrombosis of the inferior vena cava. Coeliac and superior mesenteric, or even hyperselective hepatic arteriography, is of great value if there is inversion of the portal flow. Otherwise it only leads to a suspicion of the diagnosis, and makes it possible to determine the state of the portal trunk and to seek an aetiology.

Adult↗
PubMed1977

[Value of the Chiba needle in the technique of percutaneous transhepatic cholangiography. 20 cases. (author's transl)].

The authors used the Chiba needle for percutaneous trasphepatic cholangiography in 20 patients. Catheterisation of non-dilated biliary canals is easy with this new piece of equipment, making it possible to confirm or eliminate the presence of an obstruction. There were no severe complications. The authors report a certain number of incidents which were troublesome during the examination and in the interpretation of the results: intraparenchymatous injection, sub-capsular injection, defective filling.

Cholangiography↗
PubMed1977

[Is the presence of air in the small intestines pathological (author's transl)].

The authors examined 119 patients coming to the Radiological Department for various reasons excluding all abdominal pathology: road traffic accidents, rheumatological pain, oto-rhino-laryngological or ophthalmological causes. Two observers, working separately but comparing their results, concluded that there was air in the small intestines in 51 % of the patients, and that the presence of air in the small intestines was considerable in 6 % of the patients. The presence of air in the small intestines was noted in 40 % of outpatients and in 70 % of patients in bed.

Adolescent↗