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Biomedical subjects

F Olbert

Publications and source records attributed to F Olbert.

At least 19 recordsLinked to original sources
PubMed2004

Long-term follow-up after percutaneous transluminal angioplasty of the distal abdominal aorta.

Aortoiliac disease can be either treated with surgery-endarterectomy for localized aortic disease or with bypass graft placement for more extensive aortoiliac disease--or with percutaneous transluminal angioplasty (PTA), which has become an established method. Long term results of surgery are well documented in literature, but long term results of distal aortic PTA are scarce, furthermore angiographic follow-up is very uncommon. We report about a patient with isolated aorta abdominalis stenosis due to atherosclerotic disease who underwent PTA in 1982 and had an angiographic follow-up four and twenty years later, thus we demonstrate that patency can be obtained even after twenty years.

Aged↗
PubMed1985

[Percutaneous transluminal angioplasty in the region of the renal artery--indications, technic and results].

The paper reports the results obtained by percutaneous transluminal angioplasty (PTA) in the treatment of renal artery stenosis in 25 patients with secondary hypertension and discusses indications and the technique used. The follow-up period ranged from 0.5 to 12 months. All interventions were performed with the Olbert catheter system. Following PTA a significant decrease in systolic, diastolic and mean arterial pressure was observed in nearly all patients. The response of the plasma renin activity (PRA) to orthostatic stimulation and pharmacological stimulation by furosemide was determined in a subset of 15 patients before and after PTA. A significant decrease in both basal and stimulated PRA values was observed subsequent to PTA. The decrease in PRA values after successful PTA did not, however, correlate with the extent of the blood pressure changes.

Adolescent↗
PubMed1984

[Transcatheter therapy in the icterus patient: extracorporeal drainage--endoprosthesis].

Percutaneous transhepatic cholangiography, as well as the therapeutic possibility of extracorporeal biliary tract drainage and insertion of an endoprosthesis are discussed in this paper. The results are presented of 19 patients treated by extracorporeal drainage and of 12 patients treated by insertion of an endoprosthesis, with a successful outcome in each group. The clinical parameters, the reduction in bilirubin values after treatment and improvement in the patient's condition and general well-being are discussed.

Catheters, Indwelling↗
PubMed1983

[Percutaneous transluminal vasodilatation. Long-term results and report on experiences with a new system of catheters: transaxillary technic].

A report is given on the result of 567 transluminal vasodilatations, some of which have been followed up for more than five years. The results of conventional techniques were compared with a new catheter technique. The complication rate with the newly-adopted system is much lower than with conventional ones, while the reocclusion rate is only about 10%, which is about half of the figure obtained in the period up to July 1981 when the new technique was introduced.

Angioplasty, Balloon↗
PubMed1983

Intra-arterial infusion therapy for pulmonary tumours.

On a total of 47 patients with pulmonary tumours (45 carcinomas and two pulmonary sarcomas) intra-arterial infusion therapy was performed via the bronchial artery (34 cases), the pulmonary artery (11 cases), the internal thoracic artery (1 case) and the intercostal artery (1 case). Cytostatic drugs were given to 43 patients (mainly in the form of single-drug therapy) and four patients received a preparation of proteolytic enzymes. In the majority of cases (34 of 47 patients) intra-arterial therapy was followed by intravenous cytostatic treatment. We can evaluate the effect of the intra-arterial therapy on the basis of the number and extent of tumour remissions, as well as of acute or subacute side effects. Effects over longer period and the survival times of patients can only be evaluated to a limited extent. We observed one complete tumour remission, five partial remissions (size of tumour reduced by more than 50%) and eight minor remissions (reduction by less than 50%); in 18 cases there was no measurable change in the tumour and in nine cases progression was observed (six cases cannot be evaluated.) Complete or partial remissions were observed only after treatment via the bronchial artery and after cytostatic therapy. These tumours were rather poorly vascularised and remissions occurred irrespective of cell type. There are certain indications that intra-arterial chemotherapy may be superior to equivalent intravenous chemotherapy, but the evidence so far available is not conclusive.

Adult↗
PubMed1981

[Therapy of acute bleeding from esophagus varices (author's transl)].

Acute bleeding from esophagus varices in portal hypertension is still a considerable therapeutic problem, and quite different approached to treatment are being followed. We use the following approach general procedures like treatment of shock, treatment of coagulation disorders etc.; emergency endoscopy; submucosal sclerosing if varices can be identified endoscopically as the source of bleeding. If bleeding cannot be stopped in this way a Sengstaken probe is applied for 4-6 hours, and after that sclerosing of the bleeding area is tried again. If bleeding does not stop at that time yet, the vena coronaria ventriculi or the venae gastricae breves are sclerosed by the transhepatic route. In almost all cases bleeding can be stopped successfully if this sequence of procedures is followed. After bleeding has been stopped, surgery establishing a portacaval shunt may be taken into account.

Dilatation↗
PubMed1980

Chronic vascular disease of the upper extremity: radiologic and clinical features.

The major chronic vascular diseases of the upper extremity are (1) subclavian artery occlusions, (2) thoracic outlet syndrome, and (3) angiospastic disease of the hand. Central subclavian artery lesions ease of the hand. Central subclavian artery lesions can have either hemodynamic consequences (subclavian steal syndrome) or, by peripheral embolization, can provoke ischemic symptoms of the hand. Costoclavicular narrowing can cause functional or fixed stenosis of the subclavian artery and can also involve the vein or brachial plexus. Symptoms due to pressure on the brachial plexus are most frequent, but embolization to the peripheral vessels may also occur. Angiospastic disease, the most frequent lesion of upper extremity vessels, comprises three types: Raynaud's disease, in which there are intermittent attacks of coldness and discoloration without evidence of occlusion on the angiogram; asphyxia manus et digitorum in which the attacks are also intermittent but there is morphologic evidence of occlusion; and digitus moriens or mortuus, in which there is a painful, permanent discoloration. All investigations of chronic vascular disease of the upper extremity should begin with arch aortography and then proceed to a selective catheterization of the vessels that are presumed to be involved.

Adolescent↗