Results of diagnostic and therapeutic transhepatic procedures in 185 patients with portal hypertension and 292 patients with obstructive jaundice are analyzed. Optimal angles for introduction of instruments, optimal intercost and the most convenient for manipulation biliovascular structures of the liver were determined. These principles permitted to reduce the failure rate in endovasculary procedures from 10.5 to 3.8%, in endobiliary--from 13.2 to 0.97%.
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