EDTAによる尿路結石の化学的溶解

CHEMICAL DISSOLUTION OF URINARY CALCULI BY IRRIGATION WITH EDTA

緒言

　尿路結石の化学的溶解に関する試みは，従来より種々検討され，工夫されてきた。

　その嚆矢は，Crowell　（1924）^1）によるもので，すなわち，アルカリマーキュロクローム液を用いて腎盂内を灌流し，シスチン結石の完全溶解に成功した。

Dissolution of urinary calculi by irrigation with EDTA (Ethylene diamin tetra acetic acid) solution was performed in 20 cases. 15 cases were renal calculi and 5 cases were bladder calculi. The renal irrigation was carried out through Fr. 8 double channeled catheter or 2 catheters; one as inlet, the other as out let; introduced into the renal pelvis by means of a Cystoscope.

The bladder irrigation was done through Fr. 24 Foley continuous irrigation catheter.

The results were as follows: 5 of the renal calculi and 4 of the bladder calculi were completely dissolved, and 3 of the renal calculi were partially dissolved.