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  • Title: Presenting symptoms and clinical features in 130 patients with the velo-cardio-facial syndrome. The Leuven experience.
    Author: Vantrappen G, Devriendt K, Swillen A, Rommel N, Vogels A, Eyskens B, Gewillig M, Feenstra L, Fryns JP.
    Journal: Genet Couns; 1999; 10(1):3-9. PubMed ID: 10191424.
    Abstract:
    During the last 5 years, we diagnosed in Leuven 130 patients with a 22q11 deletion. The deletion was familial in 14 out of 110 index patients (12%), which is significantly less compared to previous studies. In 10 patients, the deletion was maternal, in 4 patients paternal. A cardiac defect was the main presenting symptom in 49% of patients. The other patients were ascertained through developmental delay (16%), behavioural disturbances (7%), otorhinolaryngological manifestations (6%), psychiatric manifestations (3%) and mental retardation (2%). In one patient hypocalcemia was the presenting symptom. In another patient the severe immune deficiency led to diagnosis. Most patients presented a wide variety of the classical features of the Velo-Cardio-Facial syndrome. Velopharyngeal incompetence, learning difficulties or mostly mild mental retardation were almost always present, whereas clinical significant hypocalcemia or immune disturbances were rare. Previously un(der)recognised features include polyhydramnios, renal malformations and laryngotracheamalacia or laryngeal stenosis.
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