The Authors have verified the utility of the Laser CO2 instrument for termino-terminal anastomosis of the uterine horns of the rat. In this study Laser tecnique is compared with the same traditional microsurgical operation. No significant difference was seen in the number of pregnancies nor fetuses born. On the contrary, hystological observation has shown lower reactivity in the group treated with Laser technique 10 days. In this group it was also noted that there was less formation of postoperative adhesions, and, during the operation, there was easier dissection of the tissues accompanied by lower blood loss and necrotic debris.

Animals↗

PubMed1984

[Venous reconstruction using a fresh arterial patch in experimental microsurgery].

The Authors have studied the lower trombogenicity following interposition of an arterial patch in a venous termino-terminal microanastomosis. The microsurgical operation was performed on the femoral vessels of the rat. A tract, cm 0.8-1 long, of femoral artery was excised and after washing in Emagel solution, was interposed in the femoral vein of the opposite leg. The patency of the femoral vein was verified at the end of the anastomosis. We also studied the histological change of the arterial patch grafted both 10 and 30 days after the operation. A progressive reduction of the reactivity around the nylon sutures and an increasing venous metaplasia was found correlating with time.

Animals↗

PubMedDate not supplied

[Biological and synthetic prostheses in gynecologic microsurgery].

Biological prostheses of human umbilical vein and synthetic prostheses of ePTFE were comparatively studied in the microsurgical anastomosis of the uterine horns in twenty rats. Patency rate after 30 days was 60% for umbilical vein and 75% for the ePTFE prostheses. Gross and histological examination of umbilical vein graft specimens showed minimal alteration with a smooth intimal surface. On the contrary tissue covering the inner surface from the adjacent ends of the uterine horns was noted in ePTFE prostheses.

Animals↗

PubMedDate not supplied

[Experimental study of different techniques for partial resection of the ovary].

The effects of leaving the ovarian cortex open after wedge resection were studied in a rabbit model. Twelve animals were operated: in one ovary the ovarian cortex was reattached with microsurgical sutures and in the contralateral it was left to heal by secondary intention. No significant differences were observed in adhesion formation and tissue reactivity between the two techniques. These data support the hypothesis that reattachment of the ovarian cortex is not necessary after conservative ovarian surgery and these findings could be useful in the laparoscopic treatment of benign ovarian pathology.

Animals↗