Peroperative cholangiography--Karachi experience.

The results of peroperative Cholangiography (P C) were evaluated at six centres in Karachi. In four centres P.C. was done routinely. Pooled results showed that 14.8 percent of 222 cases bad such exploration and 12.1% yielded stones. I.n two other centres P.C was employed selectively for cases with a ‘relative’ clinical indication for duct exploration, pooled results showed that 16.6% of 253 cases had ducts explored and the positive yield was 12.3%. As compared with the results of duct exploration on clinical ground alone, a practice in one of the centres (prior to employing routine P C ) it was found that rate of stone retrieval from ducts explored on the basis of P C was much higher (JPMA 34 : 206, 1984).