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Biomedical subjects

Y Melin

Publications and source records attributed to Y Melin.

18 recordsLinked to original sources

[Varicocele in children and adolescents. Review of a series of 58 cases].

5 to 25% of male adolescents present with a varicocele; only those cases inducing serious discomfort or affecting the development of the testis require surgical treatment. Nevertheless, the results of surgery are disappointing, with a high recurrence rate. Based on a better knowledge of testicular venous drainage, it appears that conventional high ligation of the spermatic vein (s) might not be sufficient to cure varicocele. Fifty-eight patients were operated upon using four different procedures. Only complete, proximal ligation of all of the visibly dilated veins seems to prevent recurrences with a follow-up of at least one year. However, out of eleven cases treated with this original procedure, one patient, already operated upon twice without success, developed secondary atrophy.

Adolescent

[Varicocele in childhood and adolescence. Evaluation apropos of a series of 58 cases].

5 to 25% of the male adolescents present with a varicocele; only those cases inducing serious discomfort or affecting the development of the testis require surgical treatment. Nevertheless the results of surgery are disappointing with a high recurrence rate. Based on a better knowledge of the testicular venous drainage, it appears that the conventional high ligation of the spermatic vein(s) might not be sufficient to cure the varicocele, fifty-eight patients were operated upon using four different procedures. Only a complete and proximal ligation of all of the visibly dilated veins seems to prevent recurrences with a follow-up of at least one year. However, out of eleven cases treated with this original procedure, one patient, already operated upon twice without success, developed secondary atrophy.

Adolescent

[Transureteroureterostomy. Results in a series of 42 children and young adults].

Forty two TUU have been performed from 1974 to 1986 in children and young adults: the youngest was 10 years, the oldest 26. The mean follow-up has been more than 5 years: 23 bladder exstrophies, 12 neurogenic bladders, 5 mega-ureters and 2 retroperitoneal tumors. TUU were performed after failure of uretero-cysto-neostomies (8/42) ou uretero-sigmoid reimplantation (19/42). The technique with details about drainage (16/42) is described. In 5 cases, complications appeared early: 3 fistulae, 2 sweelings of the anastomosis. tests done 3 months after the operation did not show any other complication in relation with the TUU. Nevertheless one reflux and 3 stenoses of the end of the recipient ureter caused dilatation of two upper urinary tracts. During the long term follow-up, it was necessary to perform 2 nephrectomies of the donor ureter and 5 operations on the end of the recipient ureter. These complications were independant of the TUU. The final result of TUU was excellent.

Adolescent

[Management of uropathies diagnosed prenatally. Discussion based on a series of 53 cases].

From 1982 to 1986, 53 newborns (26 boys and 27 girls) were referred to the authors for the management of a congenital anomaly of the urinary tract, following a prenatal ultrasonographic diagnosis. The postnatal diagnosis was hydronephrosis in 27 children (10/27 bilateral cases), unilateral multicystic dysplasia in 11, ureteral duplication in 6, primary megaureter or orthotopic ureterocele in 5 (1/5 bilateral case) and posterior urethral valves in 4. An early urinary tract infection was noticed in 5 cases only and 2 boys with urethral valves had an altered renal function at birth. Eight children with a mild lesion were not operated. A radical procedure was performed in 15 cases: excision of a multicystic kidney (10 cases) or heminephrectomy of an upper non-functioning pyelon (5 cases: 3 with heterotopic ureterocele and 2 with ectopic ureter). Thirty children were submitted to a corrective procedure: electrocoagulation of urethral valves (4 cases), ureteroneocystostomy (6 cases) or pyeloplasty (19 unilateral and 1 bilateral procedure). Except in a case of pyeloplasty the result of the reconstructive surgery was considered as good or satisfactory from a radiological point of view, with a mean follow-up of 1.5 year. The essential point of discussion is the evaluation of the factors which must be taken in account to plan an early reconstructive surgical treatment. The main factor, I.e. the natural history of these congenital anomalies remains at yet difficult to predict in a great number of cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Female

[Treatment of vesico-renal reflux in congenital neurogenic bladder].

Surgical treatment of vesico-renal reflux was performed in 20 children (6 boys and 14 girls) with congenital neurogenic bladder. A total of 32 ureteral reimplantations was done according to the Cohen's technique between 10 months and 15 years of age. With a follow-up ranging from 2 to 12 years, the result remained good in 15 children while a failure of the surgical correction was noted in 5. A precise urodynamic evaluation of the neurogenic bladder is important prior to the decision of antireflux surgery.

Adolescent

[Ureteral reimplantation using the psoas bladder hitch. Apropos of 42 cases].

42 cases of ureterocystoneostomy with psoas hitch were performed: 22 boys, 20 girls. The majority of the cases were done between ages 4 and 6. Initially 8 cases presented with reflux, 9 with megaureter and reflux, 20 with megaureter without reflux, 5 cases of ureterocele with duplication. 2 cases were done as a primary procedure, 4 cases as a part of undiversion, 36 after failure of a reimplantation either for reflux (13) or for stenosis (23). The technique is described: four cases were done bilaterally. Another procedure accompanied the psoas hitch: 20 ureteral modelage, 3 transuretero-ureterostomies. Follow up varied from 1 to 13 years with good results in 27 cases, fair results in 10 and poor results in 5.

Child

[The valves of the posterior urethra].

75 cases of posterior urethra valves have been seen and treated from 1952 to 1984. The average follow-up is 11 years. The clinical symptomatology is described and the different treatments are analyzed from a critical point of view. A the present time the progress made by pediatric intensive care, minimization of endoscopes, better understanding of lesions, indicate that the only treatment has to be the valves. A urinary diversion is to be considered only if the life of the boy is in danger. It is rare to have to reimplant the ureters. 3 boys died. From the cases with long follow-up, 4 have high blood pressure, 16 have renal insufficiency, of these one had a successful renal transplant, 6 are dialyzed. The problems of urinary continence and fertility are discussed.

Child

[Polyp of the posterior urethra. Apropos of 6 cases].

Polyp of posterior urethra is a rare cause of urinary obstruction. Attached by a pedicle to the superior part of the veru montanum, such a polyp is mobile and can move in the bulbar urethra, causing urinary retention. If can also bleed provoking either hematuria or urethrorrhagia. Urinary infection can be present. Vesico-urethral ultrasound examination can show the polyp. But the diagnosis is made on a voiding cystourethrogram either at the end of an intravenous pyelogram or after suprapubic puncture of the bladder. Cystourethroscopy can also diagnose the lesion, and can treat it by electrocoagulation of the pedicle. Surgery by suprapubic incision and cystostomy is another method of treatment. It is perhaps less dangerous that the endoscopic treatment because the pedicle is very close to the ejaculatory ducts. Pathology of polyp of posterior urethra is variable but benign. The most frequent lesion is a fibrous polyp specially in children. Recurrency of such a lesion is very exceptional.

Child, Preschool

[Digestive duplications affecting the pharynx or fistulae of the fourth endo-branchial pouch. Four cases (author's transl)].

Four cases of children with recurrent latero-cervical epithelial cystic tumours which where identified as exceptional derivatives of the 4th endobranchial pouch on the basis of their connections with the pharynx and in particular the piriform fossa. The opportunity is taken to review the characteristics of equally rare digestive, duplications and congenital diverticula at a cervical and buccopharyngeal level. This diagnosis was made initially in the first of these cases.

Branchioma