[Warren's operation for portal hypertension. Evaluation of results by early angiography in 23 cases (author's transl)].

After distal splenorenal anastomosis, as described by Warren, in 23 patients, early assessment of results (after 2 weeks and 2 months) by endoscopic examination and celiomesenteric angiography was used to evaluate the effectiveness of the procedure and its effects on hepatic portal perfusion. The distal splenorenal shunt remained open in almost all cases (22 out of 23), the varices diminished, and postoperative hemorrhage rarely occurred (3/23 cases). The portogastric disconnection was incomplete in 8 patients, preservation of hepatoportal flow not being constant, as 6 cases with partial and 2 cases with complete portal thrombosis were observed.