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  • Title: Clinical features of children with Haddad syndrome: A single-center experience.
    Author: Woo HY, Oh C, Han JW, Kim HY, Jung SE.
    Journal: J Pediatr Surg; 2020 Mar; 55(3):387-392. PubMed ID: 30850150.
    Abstract:
    BACKGROUND/PURPOSE: Haddad syndrome (HS) is a very rare disease considered a form of neurocristopathy. It is characterized by a combination of congenital central hypoventilation syndrome (CCHS) and Hirschsprung's disease (HD). We report the clinical features and disease progression of HS to provide better care for HS patients by achieving an earlier diagnosis and optimal treatment. METHODS: Medical records of patients diagnosed with HS from 2005 to 2016 were retrospectively reviewed. Demographic data including gestational age, birth weight and height, and paired-like homeobox 2b (PHOX2B) gene mutation were collected. RESULTS: Seven males and three females were identified (mean gestational age 39.76 ± 1.49 weeks, mean birth weight 3117.5 ± 288.9 g). PHOX2B gene mutation was identified in all patients. Immediate ventilation care after birth was required in five patients due to poor respiration. The current median age of the children is 5.4 years (range, 1.8-10.1). Tracheostomy was performed in nine patients. Eight patients required sleep ventilation and two patients, 24-h continuous ventilation support. Six patients showed rectosigmoid aganglionosis and four patients exhibited total colonic aganglionosis, of these one had aganglionosis extended to the distal small bowel. Soiling was observed in seven patients (5 with laparoscopy-assisted transanal endorectal pull-through and 2 with Duhamel procedure) and one patient showed grade 2 constipation with Duhamel procedure. Six patients had developmental delay. All patients are alive. CONCLUSIONS: HS may require lifelong medical care. This study could be helpful to understand the clinical features of HS including associated abnormalities and disease progression. By assisting to understand the clinical features, we could provide better care for HS patients by achieving an earlier diagnosis and appropriate treatment. TYPE OF STUDY: Prognosis study. LEVEL OF EVIDENCE: Level IV.
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