Scanning Electron Microscopic Microprobe Technique — Morphological and Chemical Analyses of Struvite Stones Exposed to Renacidin (Hemiacidrin)

Magnesium ammonium phosphate (struvite) calculi may be dissolved by medical therapy, by chemolitholysis. Hereby renal stones are directly attacked through irrigation fluid in the pelvis and calices; struvite calculi respond to a solution of hemiacidrin (Renacidin) which consists of a puffered mixture of anhydrides, lactones of gluconic and lemon acid. In medical therapy a half-open circulation system is necessary, for instance, a combination of percutaneous nephrostomies and transureteral catheters. A controlled flowing in and out is indispensable and must be controlled by flow-meters.