Biomedical subjects

M Belas

Publications and source records attributed to M Belas.

22 records · Page 2Linked to original sources

PubMed1987

[Obstruction after uretero-vesical reimplantation in children. Apropos of 40 cases].

Fourteen cases of obstruction after ureteroneocystostomy in children have been cured by surgery between 1972 and 1986; nine patients were referred from outside our hospital. This failure as been observed after reimplantation of simple thin ureter (29 cases) megaureter (7) or duplication (4). The diversity of lesions, of which 52 percent were ischemic stenosis, required surgery without any preconceived idea. A new reimplantation is often necessary, usually with Politano-Leadbetter procedure, and, if necessary, with a hitch-bladder. The operation is successful in 85 percent of patients, but the result is uncertain when the operation is late or when the value of renal parenchymal is initially poor.

Anuria↗

PubMed1986

[Urologic surgery in prone position using an antistatic fitted mattress].

The prone position is often used in urologic surgery: posterior approach for pyeloureteral procedures, repair of vesicovaginal fistulas... Positioning of the patient and intraoperative ventilation are facilitated by use of an antistatic, fitted mattress.

Female↗

PubMed1985

[Pyeloureteral duplications in the adult: diagnostic means and therapeutic indications. Apropos of 20 cases].

Complicated pyelo-ureteral duplication in the adult may be revealed by recurrent pyelonephritis or urinary leakage. The diagnosis can be performed by combined urography and ultrasound scan. The management is rarely conservative. In most cases, it consists in hemonephrectomy. The ureterectomy is partial, extending up to the pelvic brim in the case of a fine ureter. If the ureter is dilated, however, the ureterectomy must be subtotal, in order to avoid postoperative infectious recurrence.

Adult↗

PubMed1984

[Percutaneous nephrolithotomy in 1984. Technics, results, indications].

Percutaneous nephrolithotomy - PCNL - was made possible by technological progress, with the introduction of nephroscopes, lithotomy forceps, and mechanical, ultrasonic or electrohydraulic lithotriptors. The procedure includes four stages. First needle puncture of the inferior or middle calyx. Secondly, dilatation of the pathway and creation of a tunnel. Thirdly, investigation of the collecting system. And, finally, extraction of the stone. The results of 302 published cases show a success rate of 87 per cent, a complete failure rate of 13 per cent, and residual stones in 10 per cent of cases. The complication rate is 7 per cent, with hemorrhage and sepsis in roughly equal proportions. A few other complications are occasionally reported, such as colic wounds, perirenal collections, traumas of the ureteropelvic junction, pneumothorax, or a stone left in the lumbar wall. There was one case of death. The hospitalization period is the same as for lombotomy, but the return to work is more rapid. The best indications are pelvic and inferior calyceal stones (with a success rate of over 80 per cent). Despite their enthusiasm for this procedure, the authors feel that is still remains to be seen or whether it will in turn be superseded by ultrasound lithotripsy.

Drainage↗