Perineal transsphincteric derivation of urine. Experimental study in rabbits.

Aim Of The Study: We present the experimental results of a new technique that makes use of the anal sphincter to achieve urinary continence in individuals with major congenital defects of the urinary sphincter.

Methods: 50 New Zealand White rabbits were assigned to one of 6 groups and a different surgical procedure was carried out for each group under general anaesthesia with isoflurane alone or isoflurane and local anaesthesia. Variables of interest were: number, consistency and morphology of the faeces, number, shape and location of the stains of urine, histological changes and biochemical parameters in blood.

Saccular aneurysm in arm secondary to accidental arterial puncture.

We present a rare case of saccular aneurysm localised in the arm of a breast-feeding baby, secondary to accidental arterial puncture. Colour Doppler echography showed a cystic lesion with turbulent arterial flow related to the humeral artery. Complete surgical resection of the aneurysm was achieved.

[Recto-sacral fixation in the treatment of rectal prolapse refractory to conservative treatment].

Introduction: The clinical cases of 20 patients submitted to Reifferscheid intervention (fixation of rectum to promontorium) between 1967 and 1997 are presented.

Patients And Methods: Twenty patients have been treated by means of the operation of Reifferscheid. They were divided in two groups: from 1967 to 1972, ten patients were submitted to this technique (group A).

[The superficial midline cervical cleft].

Given the anatomy and the histology of the 4 cases of children with a midline cervical cleft presented in this work, and after reviewing the specific literature, an etiologic relationship between: this congenital malformation and the subcutaneous midline cervical bronchogenic cyst can be established. The presence of pseudostratified ciliated columnar epithelium in both entities and their anatomic relationship are determinant. The anatomic differences with the thyroglossal duct cyst indicated that their embryological origins were different, in spite of the presence of ciliated epithelium.

[Alterations of nuclear maturity in spermatozoids of males with antecedents of cryptorchidism].

The association between infertility and cryptorchidism is an accepted fact, usually attributed to the oligozoosperm, asthenozoosperm or teratozoosperm presented in ejaculation products of males with this antecedent. The nuclear maturity in a sample of men with antecedents of cryptorchidism have been studied and these results have been compared to those of a control group. The results of this work show the deficient transformation of nuclear proteins to protamines in males with antecedents of cryptorchidism compared to the control group, due to the remaining of immature histones.