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J Teuscher

Publications and source records attributed to J Teuscher.

28 records · Page 2Linked to original sources

A simplified method for total arterialization of the liver in rats.

Total arterialization of the liver appears to be a promising clinical method in preventing or reducing encephalopathy after shunting. A new technique for achieving total arterialization of the liver in rats in described and illustrated. This method is fast, simple, and associated with a high patency rate, even in the hands of relatively inexperienced microsurgeons. It can be recommended as an experimental model for additional studies in rats.

Animals↗

[Combined abdominosacral excision of a giant-cell tumor of the os sacrum].

In 1967 Localio described a synchronous abdomino-sacral approach for resection of sacrococcygeal chordoma. The patient is placed in the lateral position with the left side up. The incision is carried from a point to the right of the midline above the pubis transversely across the rectus and then obliquely parallel to the inguinal ligament, to end at the midaxillary line. Mobilisation of the rectum and control of the pelvic vessels presents no difficulty. The sacrum is then exposed from the dorsal side by a transverse incision. The possibility to work simultaneously in the two operative fields affords excellent exposure and control of bleeding. This approach has been used by the authors for resection of an abundantly vascularized giant cell tumor of the sacrum.

Adult↗

Angiographic studies of the totally arterialized rat liver.

Twenty-three angiographies were performed in 20 rats with a totally arterialized liver. The arterialization was obtained by the construction of an end-to-side portacaval shunt (PCS) and an arteriovenous (AV) fistula between the left gastric artery and the portal stump. Microsurgical technique was necessary because of the small diameter of the AV fistula (0.5 mm). The angiographic examinations showed an AV fistula patency rate of 70% and a PCS rate of 100%. A successively increasing diameter of the fistula with dilation of the intrahepatic portal vessels was demonstrated in the rats with a patent arterioportal fistula. Tortuous and irregular vessels were also observed. All these signs suggest an overarterialization which developed despite the use of a very small AV fistula. None of the three rats examined histologically had cirrhosis of the liver. Further research is needed to attempt to avoid or minimize the deleterious effects of overarterialization of the portal tree, while utilizing the advantages of a dual liver blood supply in patients with decompressive PCS.

Angiography↗