[Proximal tubal recanalization by endoluminal laser probe. I. Anatomic results in the female rat].

To evaluate the cicatrization of the uterine horn after the recanalization by endoluminal laser probe, 50 white female rats of Wistar's race have been separated into two groups. The group 1 (nb = 10) had for aim to validated the procedure of obstruction. In group 2 (nb = 40), we performed the recanalization six weeks after the obstruction.

[Experimental histological study of the local toxicity of intra-tubal injections of methotrexate].

The injection of methotrexate is an alternative to laparoscopic surgical treatment of unruptured ectopic pregnancy. An experimental trial on rabbits was designed to evaluate this new approach. In situ injection of methotrexate does not cause either real tubal epithelial impairment, nor an adverse effect on treated rabbits' fertility.

[Lasers in gynecological microsurgery. Comparative experimental study].

Forty Wistar female rats were the subject of a laser resection of the uterine horn with microsurgical anastomosis, comparing the effect of various available lasers with blade section. The animals were divided in four groups. The first group, with 10 animals, underwent a resection of each uterine horn, using the CO2 laser, with a one layer anastomosis using ethilon 10/10, under microscope.

[Effects of irradiation on vascular microsurgical sutures. Experimental study on 125 rats].

The effects of irradiation on microsurgical sutures following vascular surgical procedures were studied in 125 rats divided into 7 groups, animals in 5 groups being irradiated at different doses. Follow-up examinations were conducted a minimum of 6 months after suturing and 2 months after irradiation. Evaluations included precise histological study of each vascular specimen removed, arteriography, and scanning electron microscopy.