Hysteroscopic sterilization--a routine method?

Our intention was to sterilize 50 women by means of hysteroscopic sterilization, and we were unsuccessful in 60% of these cases. All these women ran the risk of another pregnancy with hysteroscopic sterilization alone. Therefore--in our opinion--the method of hysteroscopic sterilization by thermocoagulation of the intramural part of the tubes is not yet a routine method, at least not before another modification of this method or instruments makes it possible to obtain better results.