[Peripheral embolism of hemostasis collagen (VasoSeal)].

VasoSeal is a purified bovine, absorbable collagen plug currently successfully used to close the femoral arterial puncture site after cardiac catheterization under full anticoagulation. Up to now there has been no experience with potential complications. We observed acute ischemia in the right lower leg of 2/100 patients 36 resp.

[Treatment of thrombotic occlusion of the pelvic and extremity veins. Comparison of three different types of treatment].

Out of 102 patients suffering from deep venous thrombosis of leg and pelvis 46 of them underwent thrombectomy with excellent results in 73.9%; in 23.9% the result was good, one patient came to death due to pulmonary embolism.

[The Rostock artificial heart--current status and perspectives].

The authors report on their experiences gained by animal experiments (calf) and their attempts (human corpses) concerning adaptation of the apparatus to the human thorax. At the present time they do not see a chance for its routine clinical use. The main reason why is the impossibility to install the extrathoracic driving system into the thoracic cage and last not least the wear of the material used for the heart chambers.

[Experiences with the Rostock artificial heart].

A totally artificial heart--the Rostock totally artificial heart (Rostock TAH) was implanted in calves. We can give the following deductions after 27 examinations: -- The Rostock TAH was tested successfully in endurance test about 7 months; it show no sign of wear. -- The surgical technique of the implantation was standardised and a successful experimentation is possible.

[Performance of av--fistula for dialysis (author's transl)].

From 1971 to 1975 104 a.v. fistulas were performed.

[Intrathoracic parallel heart transplantation in the dog].

The authors report on intrathoracic parallel heart transplantation which was experimentally tried on 10 mongrel dogs. The described technique is advantageous since it can be performed without extracorporeal circulation. The results of hemodynamic studies on graft and recipient heart vindicate further employment of this technique to study several problems of heart transplantation still unsolved.