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  • Title: Topical application of isosorbide dinitrate in patients with persistent constipation after pull-through surgery for Hirschsprung's disease.
    Author: Messina M, Amato G, Meucci D, Molinaro F, Nardi N.
    Journal: Eur J Pediatr Surg; 2007 Feb; 17(1):62-5. PubMed ID: 17407025.
    Abstract:
    AIMS: The aim of this study was to evaluate the anal manometric changes and the clinical effects after topical application of isosorbide dinitrate (ISDN) in patients with persistent constipation after pull-through surgery for Hirschsprung's disease (HD). METHODS: We studied 3 children (2 males and 1 female), aged 2, 3 and 5 years respectively, who had undergone the Soave-Boley surgical procedure for HD and who suffered from persistent constipation after operation. We performed a pre- and postoperative anorectal manometry study and we applied ISDN paste (1 mg/kg two times daily) in the anal region for three weeks. All patients were followed-up and re-evaluated at 1, 3, and 6 months. RESULTS: All patients showed an improvement of symptoms, with an average of 4 spontaneous evacuations per week. Prior to the topical treatment, the medium pressure was 115.6 mmHg (range 102 - 130 mmHg), the maximum pressure was 160 mmHg (range 145 - 175 mmHg), and the medium length of the high pressure zone was 1.8 cm (range 1.5 - 2.0 cm). At the 6 month follow-up, the medium pressure was 57.3 mmHg (range 52 - 61 mmHg, a decrease of 54.4 %), the maximum pressure was 98 mmHg (range 88 - 107 mmHg; a decrease of 38.7 %), and the medium length of the high pressure zone was 1.6 cm (range 1.4 - 1.8 cm; a decrease of 11.1 %). CONCLUSIONS: Topical treatment with ISDN is a valid therapeutic alternative to an anal myotomy in patients with persistent constipation after pull-through surgery for HD. However, a greater number of cases and a longer follow-up are necessary to confirm the validity of our experience.
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