UNLABELLED: Posterior reversible encephalopathy syndrome (PRES) is characterized clinically by headaches, seizures, vomiting, nausea, visual abnormalities, and altered mental function and is often (but not invariably) accompanied by parieto-occipital imaging features. The aim of this study is to describe the clinical and radiological features and outcome following PRES in a paediatric cohort. From a retrospectively identified cohort, case records were studied to confirm a diagnosis of PRES. Neuroimaging was reviewed again to assign to recently described radiological subtypes parieto-occipital pattern, holohemispheric watershed pattern, dominant superior frontal sulcus pattern, and asymmetrical or partial expression of the three primary patterns (A/P). Patient outcome was measured by the modified Rankin scale (mRS) scores. Nine boys and three girls with mean age of 12 were identified. Hypertensive episodes (n = 11), tacrolimus toxicity (n = 4), and autoimmunity (n = 1) were identified as potential risk factors/etiologies. Their median mRS at the peak of illness was 2 (range 2-5); three children required intensive care support. After mean follow-up of 35 months (median 37 months; range 3-60 months), all patients improved significantly with mean mRS of 1 (median 1; range 0-1). CONCLUSION: PRES is easily recognizable by the clinical and radiological features. Although severe at presentation, the outcome from this condition is favorable.
UNLABELLED: Posterior reversible encephalopathy syndrome (PRES) is characterized clinically by headaches, seizures, vomiting, nausea, visual abnormalities, and altered mental function and is often (but not invariably) accompanied by parieto-occipital imaging features. The aim of this study is to describe the clinical and radiological features and outcome following PRES in a paediatric cohort. From a retrospectively identified cohort, case records were studied to confirm a diagnosis of PRES. Neuroimaging was reviewed again to assign to recently described radiological subtypes parieto-occipital pattern, holohemispheric watershed pattern, dominant superior frontal sulcus pattern, and asymmetrical or partial expression of the three primary patterns (A/P). Patient outcome was measured by the modified Rankin scale (mRS) scores. Nine boys and three girls with mean age of 12 were identified. Hypertensive episodes (n = 11), tacrolimustoxicity (n = 4), and autoimmunity (n = 1) were identified as potential risk factors/etiologies. Their median mRS at the peak of illness was 2 (range 2-5); three children required intensive care support. After mean follow-up of 35 months (median 37 months; range 3-60 months), all patients improved significantly with mean mRS of 1 (median 1; range 0-1). CONCLUSION: PRES is easily recognizable by the clinical and radiological features. Although severe at presentation, the outcome from this condition is favorable.
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