Nieves Martín-Begué1, Silvia Alarcón2, Charlotte Wolley-Dod2, Luis Enrique Lara3, Álvaro Madrid3, Paola Cano3,4, Mireia Del Toro3,5, Gema Ariceta3. 1. Department of Paediatric Ophthalmology, Hospital Vall d'Hebron, Barcelona, Spain. nmartin@vhebron.net. 2. Department of Paediatric Ophthalmology, Hospital Vall d'Hebron, Barcelona, Spain. 3. Department of Paediatric Nephrology, Hospital Vall d'Hebron, Barcelona, Spain. 4. Department of Paediatric Neurosurgery, Hospital Vall d'Hebron, Barcelona, Spain. 5. Department of Paediatric Neurology, Hospital Vall d'Hebron, Barcelona, Spain.
Abstract
BACKGROUND: Cystinosis is a rare systemic lysosomal disease affecting mainly the kidney and eye. Ocular involvement in cystinosis is universal being the presence of cystine crystals in the cornea a diagnostic criterion and one of the earliest manifestations of the disease. Neuro-ophthalmologic manifestations are considered a rare and late complication in these patients. The aim of this article is to report the unexpectedly high incidence of intracranial hypertension in children with cystinosis at our centre. METHODS: This study included eight children (0-16 years of age) with cystinosis seen at the paediatric ophthalmology department, Hospital Universitari Vall d'Hebron (Barcelona, Spain), a tertiary hospital, over the last 5 years. RESULTS: Three girls and five boys, mean age: 9.6 years (range: 5-14 years), were studied. During follow-up, 4 out of 8 developed papilledema and confirmed high cerebrospinal fluid (CSF) pressure. The only symptomatic child presented an Arnold-Chiari anomaly with enlarged ventricles, whereas the other three, all asymptomatic, were diagnosed by scheduled fundoscopy and had normal neuroimaging studies. All four patients had at least one known risk factor for developing intracranial hypertension: initiation of growth hormone therapy, tapering of corticosteroids, acute renal failure and Arnold-Chiari malformation. Two of them required a ventriculoperitoneal shunt. CONCLUSIONS: Our results show that intracranial hypertension can occur more frequently than expected in patients with cystinosis. Furthermore, visual prognosis depends on early diagnosis and prompt treatment. A multidisciplinary approach is necessary, and we recommend fundoscopic examinations in all paediatric patients with cystinosis whether or not they present symptoms.
BACKGROUND:Cystinosis is a rare systemic lysosomal disease affecting mainly the kidney and eye. Ocular involvement in cystinosis is universal being the presence of cystine crystals in the cornea a diagnostic criterion and one of the earliest manifestations of the disease. Neuro-ophthalmologic manifestations are considered a rare and late complication in these patients. The aim of this article is to report the unexpectedly high incidence of intracranial hypertension in children with cystinosis at our centre. METHODS: This study included eight children (0-16 years of age) with cystinosis seen at the paediatric ophthalmology department, Hospital Universitari Vall d'Hebron (Barcelona, Spain), a tertiary hospital, over the last 5 years. RESULTS: Three girls and five boys, mean age: 9.6 years (range: 5-14 years), were studied. During follow-up, 4 out of 8 developed papilledema and confirmed high cerebrospinal fluid (CSF) pressure. The only symptomatic child presented an Arnold-Chiari anomaly with enlarged ventricles, whereas the other three, all asymptomatic, were diagnosed by scheduled fundoscopy and had normal neuroimaging studies. All four patients had at least one known risk factor for developing intracranial hypertension: initiation of growth hormone therapy, tapering of corticosteroids, acute renal failure and Arnold-Chiari malformation. Two of them required a ventriculoperitoneal shunt. CONCLUSIONS: Our results show that intracranial hypertension can occur more frequently than expected in patients with cystinosis. Furthermore, visual prognosis depends on early diagnosis and prompt treatment. A multidisciplinary approach is necessary, and we recommend fundoscopic examinations in all paediatric patients with cystinosis whether or not they present symptoms.
Authors: Martine T P Besouw; Maria Van Dyck; Inge Francois; Elke Van Hoyweghen; Elena N Levtchenko Journal: Pediatr Nephrol Date: 2012-06-05 Impact factor: 3.714
Authors: Cigdem F Dogulu; Ekaterini Tsilou; Benjamin Rubin; Edmond J Fitzgibbon; Muriel I Kaiser-Kupper; Owen M Rennert; William A Gahl Journal: J Pediatr Date: 2004-11 Impact factor: 4.406