Histological study was carried out on human fallopian tubes one hour and one month after various methods of laparoscopic sterilization. Ciliated cells were counted and histological lesions were observed. Deciliation is proved at a distance from the site of sterilization. Taking into account these two data, it has been possible to display the substance loss provoked by each of the usual sterilization methods (unipolar electro-coagulation, bipolar electrocoagulation, silicone ring and Hulka-Clements clip) which have to be taken into consideration in case of surgical re-anastomosis.
PIP: Fallopian tubes were excised 1 hour and 1 month after various forms of laparoscopic sterilization and were assessed histologically with the aim of determining which procedure was most conducive to reanastomosis. The histological procedure included counting of ciliated cells and observation of histological lesions. Using a method which takes into account that deciliation is proved at a distance from the site of sterilization, the substance loss was determined as provoked by each of widely used sterilization techniques (electrocoagulation, and nonchemical tubal occlusion using both clips and rings). 12 figures of the tubal histology form the core of this report which concluded that unipolar electrocoagulation destroys a large part of the isthmic portion of the fallopian tubes; bipolar electrocoagulation provokes less-distant lesions; the silicone ring provokes constant tissue destruction; and the Hulka-Clemens clip has the advantage, provoking tissue damage less than .5 mm.