The Roux-en-Y procedure in congenital hepato-biliary disorders.

BACKGROUND: The use of the Roux-en-Y procedure is limited in paediatric surgery practice, and is performed mainly in congenital hepatobiliary disorders either as an initial or permanent treatment. In this 18-year retrospective study, we present our experience of the Roux-en-Y procedure in childhood cases of biliary atresia (BA) and congenital choledochal cyst (CCC). METHODS: Twenty-eight children (18 females and 10 males; age 25 days-12 years) with hepatobiliary disorders were treated in our clinics between 1986-2004. Twenty patients suffered from BA (11 females, 9 males) and eight from CCC (seven females, one male). The surgical approach in the patients with BA (mean age 2.1 months) was Roux-en-Y hepatic portoenterostomy (Kasai procedure) and in the patients with CCC (mean age 7.2 years) was cyst excision with Roux-en-Y hepaticojejunostomy. The mean follow up period was 9.3 years. RESULTS: The children with BA developed the follow postoperative complications: 12 cholangitis, 6 portal hypertension and 5 hepatic cirrhosis. Among the children with CCC, two presented post-operative cholangitis, which was treated conservatively, and one developed anastomotic stricture and underwent reoperative reconstruction. At the end of the follow-up period among the children with BA 6 had died, 3 had undergone liver transplantation, and 5 were on a waiting list for transplantation. All children with CCC were alive without sequelae. CONCLUSIONS: Roux-en-Y in BA, with timely diagnosis, is preferred as an initial procedure, followed by liver transplantation in cases with no bile drainage and is the only possible reconstruction in cases of CCC after excision of the biliary cyst.

Comparison of angiogenic activities after urethral reconstruction using free grafts in rabbits.

OBJECTIVE: To determine the most suitable type of graft-free penile skin grafts or mucosal grafts from bladder or buccal regions - for urethral reconstruction in an animal model, as evaluated on the basis of angiogenic activity. METHODS: Twenty-two male White New Zealand rabbits were randomly divided into four groups. In the control group (group O, n=4) a simple urethrotomy and closure was performed, whereas a ventral urethral defect was created in groups A, B, and C and then bridged using the following onlay patches: free penile skin (group A, n=6), buccal mucosal graft (group B, n=6), and bladder mucosal graft (group C, n=6). On the 21st postoperative day, the animals were sacrificed and the retrieved implants were subjected to macroscopic and microscopic analysis. The angiogenic activity was assessed with immunohistochemistry, using the anti-CD31 MoAb and the phosphatase antialkaline phosphatase procedure. The native vascularity of penile skin as well as buccal and bladder mucosa was assessed in rabbits from group O (n=3). Statistical analysis was performed using the one-way ANOVA. RESULTS: The angiogenesis in a magnification of x200 in groups O, A, B, and C was 34.1+/-4.1 (mean+/-SD), 61.7+/-6.4, 94.3+/-6.4, and 91.5+/-7.2 vessels per optical field, respectively. There were, statistically significant differences (p<0.001) between groups A and B and between groups A and C, but not (p>0.05) between groups B and C. The native vascularity of penile skin, buccal mucosa and bladder mucosa was 23.3+/-3.0, 24.6+/-3.7 and 17.0+/-2.6 vessels per optical field, respectively. CONCLUSION: The viability of mucosal grafts from bladder or buccal regions is better than that of a free penile graft because of higher angiogenic activity. Although the mucosal grafts showed the same angiogenic activity, the buccal mucosa graft is preferable because of its easier harvesting.

Serum amyloid A protein levels as a possible aid in the diagnosis of acute appendicitis in children.

Hematological and biochemical tests, including white blood cell count (WBC), C-reactive protein (CRP) and other acute-phase reactants, have been used in the diagnosis of acute appendicitis. However, there is controversy among physicians about the value of this practice in children. The objective of our study was to evaluate serum amyloid A protein (SAA) levels in children with confirmed acute appendicitis and to compare the sensitivity and specificity of this marker of inflammation with those for WBC and CRP. A prospective cohort study of 60 children admitted with abdominal pain to rule out appendicitis was used in the study. Of these, 42 underwent surgery, while 18 children who had spontaneous amelioration within 24 h of admission were not operated on and served as controls. WBC and serum SAA and CRP levels were obtained preoperatively. Serum concentrations of the analytes were determined with particle-enhanced immunonephelometric methods. Patients with acute appendicitis had WBC, SAA and CRP levels higher than those of the control group (p<0.001). There was no appendicitis patient with a normal SAA value, while 21.4% of the patients had CRP values within the normal range. The performance of each test was measured by receiver-operating characteristic curves. Area under the curve (AUC) values were 0.849 for WBC, 0.868 for CRP and 0.964 for SAA. The sensitivity and specificity of these methods were 76% and 75% for WBC>10.0 x 10(9) /L, 62% and 94% for CRP>10 mg/L and 86% and 83% for SAA >45.0 mg/L, respectively. Circulating SAA levels have better discriminatory value than WBC or CRP in the assessment of acute appendicitis in children. Thus, this test appears to be of higher value than the current standards of care in the diagnosis of this condition.

Urological symptoms of acute appendicitis in childhood and early adolescence.

We present 15 cases of acute appendicitis in ten boys and five girls (age 3-15 years) with cardinal symptomatology coming from the urogenital tract, who were treated in our departments. All the patients presented with right renal colic, dysuria, frequency and urinary retention. The symptoms were attributed to an ongoing appendix inflammatory process in close proximity to the right distal ureter and urinary bladder. All the patients were successfully operated, and postoperative courses were uneventful. As the present patient group is the largest reported to date, a classification of the pathophysiology in relation to the clinical presentation is proposed.