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Biomedical subjects

B Ulrich

Publications and source records attributed to B Ulrich.

At least 91 records · Page 5Linked to original sources
PubMed1978

[Myositis ossificans following head injury (author's transl)].

This is a report on 14 patients with myositis ossificans with simultaneous head injury. Predilected sites are the hip and elbow joints as well as thigh musculature, where particularly in the youthful and younger adults ossifications occur 5--8 weeks after the accident. Premature operative treatment is useless because of the danger of recurrence. The process of ossification usually comes to a standstill 8--12 weeks following the trauma. The diagnosis is made on the basis of clinical examination (hardening of muscles, immobility of joints) and X-ray pictures. The pathogenesis and modes of therapy are discussed in detail. Furthermore, the incidence of this complication of head injury in various age groups is evaluated statistically.

Adolescent↗
PubMed1977

[Measurement of liver circulation by means of an ultrasonic Doppler flow measuring device].

The ultrasonic-Doppler technique is a very simple method for flow measurement. With this method the generally accepted mechanism of hepatic arterial flow increase after reduction or interruption of the portal vein flow could be confirmed. The increase was not related to cardiac output. Previous doubts about the portal vein flow behaviour after suppression of hepatic artery flow were decided, joining the little group of authors, who did not observe a variation of the portal vein flow in this condition. The concept of the autoregulation of the liver blood supply seems to be connected to the hepatic arterial system only. Although an increase of the hepatic artery flow after infusion of isoproterenol supports the existance of beta-receptors in the hepatic arterial system, it could be proved, that there was no reduction after propranolol infusion. This suggests, that autoregulation of the liver blood supply is not connected to the beta-receptors only.

Animals↗
PubMed1977

[Experimental findings in liver perfusion measurements using an ultransonic Doppler flowmeter].

1. The ultrasonic doubling method of bloodflow measurement is an experimental easily practicable and very exactly recording measurement arrangement. By this method data of other methods were extended and ensured. 2. Early inquested finding is attested that after inhibition of portal vein bloodflow and after portocaval anastomosis an increased arterial perfusion of liver through a. hepatica is following. Increasing bloodflow of a. hepatica is independent of cardiac output. 3. After diminution of arterial perfusion by occlusion of a. hepatica no increased portal bloodflow is following. 4. It is to suppose an "intrahepatic regulation of liver bloodflow". It seems economical that the perfusion part of the a. hepatica with her higher oxygen content is increasing when the general perfusion is decreasing by diminished portal bloodflow or diminished blood pressure. So far it is impossible to interpret whether this accomodation is based on a difficult "auto-regulation" or is originated pressure passive from the flow together of two systems are staying under different pressure.

Animals↗
PubMed1976

[Carcinoid tumours of the rectum (author's transl)].

In three patients aged 21 to 65 rectal polyps diagnosed at rectoscopy were removed by diathermy loop. Histology showed them to be carcinoid tumours, one of tubular type, two of mixed type. Rectal carcinoid rarely presents with typical clinical symptoms. Polyps discovered by digital examination or rectoscopy should be considered to be potentially malignant and removed in toto. The size of the tumour is of decisive prognostic importance. Tumours with a cross section over 2 cm should be treated as malignant. The histological investigation generally gives no indication of clinical prognosis or of the possibility of metastases. Despite invasive growth and despite local or distant metastases carcinoid tumours can be judged more favourably than carcinoma. The plan of treatment should be according to the clinical findings as well, and not only to histological results. Postoperative follow-up is considered imperative.

Adult↗
PubMed1976

[Early complications and long-term results after total gastrectomy. A contribution to finding a method of gastric replacement, based on own observations (author's transl)].

In the years 1963 up to 1973 in the Department of Surgery of the University of Düsseldorf a total gastrectomy was performed in 53 patients. For reconstitution of gastrointestinal continuity in 22 cases we interposed a single jejunal loop between the esophagus and duodenum, in 15 patients we performed an esophagojejunostomy with a long enteroanastomosis between the afferent and efferent loop. The procedure described by Tomoda was done in 11 patients. An esophagojejunostomy Roux-en-Y we used in 3 and an esophagoduodenostomy in only 2 cases. The hospital mortality was 21%, the cause of which were predominantly complications of the lung. A dehiscence of an anastomosis never was a cause of death. A follow-up we could perform in 15 patients. On the basis of clinical, roentgenological and chemical data received in the follow-up we prefer at this time the interposition of a single jejunal loop, the length of which should be no less than 40 cm.

Body Weight↗
PubMed1976

[Study of turbulence in the normal and stenotic vessel].

Velocity measurements were performed at the test bench, in dogs and in patients with pulsed ultrasound. A new zero crossing counter was used to measure the different frequencies of the doppler spectrum in real time. The ratio of the standard deviation of the radial mean velocity to the radial mean velocity expressed as a percentage proved to be a useful turbulence index to describe stability of flow.

Animals↗
PubMed1976

[ORL-symptomatology of "subclavian steal" syndrome].

A female patient with subclavian steal syndrome is presented in this paper. She was treated originally in the ORL department because of objective ear sensations and of Menière's disease. Otological symptoms of the steal effect, e.g. dizziness, uni- or bilateral internal ear disorders and tinnitus are discussed in view of literature data and of the case history. In the differential diagnosis of above symptoms the ORL physician should also consider subclavian steal syndrome

Adolescent↗
PubMed1975

[Differentialdiagnosis and surgical treatment of the familial intestinal polyposis (author's transl)].

Between 1959 and 1974 we observed 18 patients with familial intestinal polyposis. 4 patients were from one family. Two brothers refused the operation and died 7 respectively 8 years after diagnosis had been made. The typical symptoms, the diagnostic procedure and the therapy are demonstrated. We prefer the proctocolectomy (eventually with the "Kock-Ileostoma"), because we observed a lot of recidivs after ileorectostomy. The prognosis of the familial intestinal polyposis is good, if the operation is performed early (also in cases of carcinomatosis). Only those patients died, who rejected the operation or were operated too late.

Adolescent↗