Search PubMed⌕ Search

Biomedical subjects

G Carstensen

Publications and source records attributed to G Carstensen.

At least 37 records · Page 2Linked to original sources
PubMed1983

[Meckel's diverticulum - results of 155 resections].

A total of 155 cases of Meckel's diverticulum were analyzed: 122 were uncomplicated as opposed to 33 that were complicated. Resection of all uncomplicated diverticula had a course free of difficulty, while there was one death in the cases with complicated diverticula as a result of peritonitis after perforation of the diverticulum. The diagnosis and differentiation of diverticulum from other abdominal clinical pictures, as well as from appendicitis, is usually not possible preoperatively, although differential diagnosis must always be kept in mind. If there are no special contraindications, Meckel's diverticulum is searched for instead and then resected.

Adolescent↗
PubMed1983

[Stenosis of the internal carotid artery with contralateral occlusion--primary vascular operation of externo-internal bypass?].

Among 2135 patients undergoing vascular surgery of the carotid artery, 144 revealed a stenosis of the internal carotid in combination with an occlusion on the contralateral side. Temporary inlying bypass shunts to support cerebral circulation during the endarterectomies were employed when technically feasible. The mortality among the in-patients amounted to 3.47%. Postoperative permanent neurologic deficits did not appear. During the follow-up period lasting between 1 month and 9 years 6.5% had further TIA's or strokes. Approximately 90% of the patients remained without neurologic symptoms. Neurosurgeons generally recommend a prophylactic external-internal bypass, prior to the removal of the stenosis of the internal carotid artery. According to our experience the primary objective should be the reconstruction of the stenosed artery, particularly since complications in primary external-internal bypassed occur in an average of 3-4%.

Arterial Occlusive Diseases↗
PubMed1982

[Indication for operation on the vertebral artery (author's transl)].

Fifty-three reconstructive vascular operations on the vertebral artery are reported. In our opinion, the operable causes of the vertebro-basilar insufficiency are worthy of more attention. The operative discomfort of these surgical interventions is of minor importance and may even be expected of patients well advanced in years. The postoperative results decide in favour of a positive attitude towards reconstructive surgery of the vertebral artery. The Doppler ultrasound technique helped to specify more precisely the indication for cerebral angiography. Do we recognize vertebral insufficiency too seldom?

Adult↗
PubMed1982

Non-invasive studies of the extra-cranial cerebral arteries: indication for angiography and operation.

During recent years, the risk involved in cerebral angiography has been considerably reduced. However, in our patient group this risk was still almost as high as that involved in operation. Non-invasive examination by means of the ultrasonic Doppler procedure has been improved with a resulting success rate of over 95%. Color coding stored in a computer program with the "Echoflow"-procedure allows for demonstration of the neck vessels giving an indication of the degree of stenosis. By this method, pictures of document quality are provided which can also be obtained by inexperienced examiners and interpreted more easily than curve registrations of the acoustic signals. In comparison with angiography, the Echoflow method was less sensitive than the conventional ultrasonic Doppler procedure especially in cases of low-degree stenosis of the internal carotid artery. Nevertheless, in 2.7% of the cases, a correct Echoflow diagnosis could be confirmed during operation where angiography had not shown the changes correctly. As the Echoflow procedure does not give sufficient information on intracranial pathology, we have so far dropped angiography in emergency cases only when establishing the indication for operation; however, in follow-up examinations this method is used exclusively instead of angiography.

Auscultation↗
PubMed1980

Reconstructive surgery on the vertebral artery.

In the last nine years 32 reconstructive operations were performed on the vertebral artery. In proportion to the 1032 operations on the carotid artery, is not the number of vertebral operations, at 3.1% unusually small? Is vertebro-basilar insufficiency too rarely recognized?

Adult↗
PubMed1979

[Experiences in 130 operations of carotid elongation (author's transl)].

A report on 130 operations of carotid elongation is presented. Indications for reconstruction are based on angiography, neurologic symptoms, and recently, on ultrasonography (Doppler's). Several surgical methods have been performed: 25 resections of the internal carotid artery, 5 resections of the common carotid artery, 3 resections of loop aneurysms. The main operative techniques were resection and neoimplantation, the latter with patch-plastic surgery. Usually, a shunt was used. Mortality was 0%, lethality, 2%. During a follow-up period of 6 weeks to 2 years, 86% of the patients were found to be free of complaints, and 14% were without change of the neurologic symptoms. The good neurologic results are convincing.

Adolescent↗
PubMed1979

[A mathematical model for the determination of loss of venous capacitance using impedance plethysmography].

The results of impedance plethysmographic examination were evaluated by a mathematical curve analysis. The magnitude of the exponential coefficient of the saturation and discharge function provides a highly accurate measure of the loss of functionality. The percentage change in the flow rate may be obtained by substitution of the exponential coefficients in a model formula.

Humans↗