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Biomedical subjects

K Timár

Publications and source records attributed to K Timár.

5 recordsLinked to original sources

Ureterocystoplasty for megaureter: a technique practicable in bladder wall fibrosis.

The cause of megaureter (hydroureter) is inadequacy of the ureterovesical junction. The only possible means of its therapy consists in a surgical reconstruction of the ureterovesical junction. A technical modification of ureterocystoplasty for megaureter, having been employed since 1976, is described. It basically consists in the construction of a tunnel from the ureter within the bladder, the ureter being sutured to the wall of the bladder only loosely. In 150 children 182 ureteroneocystoplastic operations were done. As confirmed by the postoperative course, as well as by the results of the follow-up studies, the technique may be used with benefit even in case of infection, impaired renal function or bladder wall fibrosis.

Adolescent↗

[Pyeloplasty in infants and children].

Pyeloureteral obstructions of various pathogeneses and their complications can be visualized satisfactorily be means of intravenous urography. Of the other diagnostic methods angiography was found to be the most useful, no retrograde examination was carried out. When distension of the end of the calyx or obvious parenchymal lesion appears, plastic operation must be performed irrespective of the patient's age, the presence of infection or anomaly of the localization. Only kidneys which have lost their functions should be removed. In the operation the pyeloureteral boundary is always excised, the new transition is secured by splinting and a transrenal drain is used. Secondary nephrectomy had to be performed in a single case. One-year and three-year intravenous urographic check-ups showed in 72 of the 100 cases good, in 19 satisfactory results, in 8 cases the pyeloureteral boundary was funnel-shaped, but the dilatations of the calyx-ends remained unchanged. Pyeloplasty is no longer a high-risk operation.

Child, Preschool↗

[Diseases associated with double ureters].

Seventy-four children with double ureters were observed in the past three and a half years, out of whom 12 were operated because of vesico-ureteral reflux, 2 for lithiasis, 6 for hydronephrosis and 15 because of ureterocele, while in 10 cases operation was indicated by ectopic ureters opening into the area of the vulva. In these diseases intercurrent infection represents the greatest danger which might cause in children a toxic, septic and dystrophic state.

Congenital Abnormalities↗