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Biomedical subjects

M El-Mekresh

Publications and source records attributed to M El-Mekresh.

5 recordsLinked to original sources

Simplified orthotopic ileocecal pouch (Mainz pouch) for bladder substitution.

OBJECTIVE: To report operative modifications that render construction of the orthotopic Mainz pouch more simple, namely formation of the pouch using absorbable staples and utilization of the ileocecal valve as an antireflux mechanism. PATIENTS AND METHODS: Between January 2001 and May 2002 out of 92 cystectomy cases, 21 patients (20 males and 1 female) underwent a simplified orthotopic Mainz pouch. The ureters were implanted via Wallace or Nesbit technique in the supravalvular portion of the ileocecal valve. The mean (range) age was 58 (43 - 74) years and the mean follow-up is 11.6 months (range 1 - 27). RESULTS: No staple-related complications were encountered. Four renal units (8.8 %) were dilated, one secondary to an impacted ureteral stone and three secondary to ureteral stenosis requiring reimplantation. At 6 months follow-up, 5 renal units showed reflux (11.1 %) but without any clinical symptoms. 86.5 % of patients void spontaneously without significant residual urine. Continence was achieved in 74 % of cases during day and in 74 % at night. CONCLUSION: The simplified Mainz pouch is a versatile form of continent urinary diversion. The use of absorbable staples has simplified the pouch creation and yields functional results which favorably compare with other pouch forms. The ileocecal valve serves as an anti-reflux-mechanism.

Adult↗

Urological complications after living-donor renal transplantation.

OBJECTIVE: To determine the incidence and management of urological complications after 1200 consecutive live-donor renal transplantations, all of which were carried out in one centre; the possible risk factors and the effect on patient and graft survival were also assessed. PATIENTS AND METHODS: Data were retrieved from an electronic database; the incidence of urological complications was determined, and correlated with relevant risk factors by univariate and multivariate analysis. The effect on patient and graft survival was assessed using Kaplan-Meier statistics. RESULTS: There were 100 complications in 96 patients (8%); urinary leaks occurred in 37, ureteric strictures in 23 and lymphoceles causing ureteric obstruction in 17. Percutaneous needle biopsy was complicated by haematuria and clot anuria in six patients. Late complications included 11 cases of stones, four of bladder malignancy and two of haemorrhagic cystitis. There was evidence that the age of the recipients (< 10 years), method of establishing urinary continuity (uretero-ureteric anastomosis) and a high dose of steroids had an independent positive effect on the incidence of urological complications. However, their development did not influence graft or patient survival. CONCLUSION: When there is meticulous attention to the technical details, renal transplantation should incur few urological complications. Early intervention with percutaneous drainage reduces morbidity and the likelihood loss of graft function. Proper and prompt management should not affect the graft and/or the patient's survival.

Adolescent↗

Urethral pathology.

In the present review the eligible data on urethral pathologies are critically analysed, with special attention given to unresolved controversies in this topic. The entities discussed are as follows: female circumcision as a ritualistic tradition, with many associated complications; prostatourethritis and urethral syndrome; urethral diverticula as an overlooked rare pathology in urological practice; urethrorectal fistula; pelvic fracture urethral injuries and its current standard treatment algorithm; and urethral strictures and new endoscopic or surgical reconstructive techniques.

Algorithms↗

Living-related-donor kidney transplantation outcome in recipients with primary focal-segmental glomerulosclerosis.

We studied the outcome of renal transplantation in 30 patients with primary focal-segmental glomerulosclerosis (FSGS) and in 30 controls in whom renal failure was secondary to nonglomerular renal diseases. All patients received living-related-donor kidneys, and the majority had one-haplotype HLA matching. Within the follow-up period, the mean serum creatinine values were significantly higher in FSGS recipients as compared with the control group (p = 0.02). However, the frequency of acute rejection episodes and the mean blood pressure values were not significantly different between the two groups. There was a tendency of a higher incidence of proteinuria among FSGS recipients in comparison with the controls. Moreover, nephrotic-range proteinuria occurred only in 3 recipients of the FSGS group. Recurrence of FSGS was morphologically documented in 2 recipients 7 and 18 months, respectively, after transplantation. It is concluded that FSGS as the primary disease has a negligible impact on the living-related-donor kidney transplantation in the Egyptian population. Therefore, this disease should not discourage transplantation for this group of patients.

Adolescent↗