Nervous system dysfunction in Henoch-Schonlein syndrome: systematic review of the literature.
OBJECTIVE
CNS or peripheral nervous system dysfunction sometimes occurs in Henoch-Schönlein patients.


METHODS
We review all Henoch-Schönlein cases published after 1969 with CNS dysfunction without severe hypertension and neuroimaging studies (n = 35), cranial or peripheral neuropathy (n = 15), both CNS and peripheral nervous system dysfunction without severe hypertension (n = 2) or nervous system dysfunction with severe hypertension (n = 2). Forty-four of the 54 patients were <20 years of age.


RESULTS
In patients with CNS dysfunction without or with severe hypertension the following presentations were observed in decreasing order of frequency: altered level of consciousness, convulsions, focal neurological deficits, visual abnormalities and verbal disability. Imaging studies disclosed the following lesions: vascular lesions almost always involving two or more vessels, intracerebral haemorrhage, posterior subcortical oedema, diffuse brain oedema and thrombosis of the superior sagittal sinus. Following lesions were noted in the subjects with cranial or peripheral neuropathy without severe hypertension: peroneal neuropathy, peripheral facial palsy, Guillain-Barré syndrome, brachial plexopathy, posterior tibial nerve neuropathy, femoral neuropathy, ulnar neuropathy and mononeuritis multiplex. Persisting signs of either CNS (n = 9) or peripheral (n = 1) nervous system dysfunction were sometimes reported.


CONCLUSIONS
In Henoch-Schönlein syndrome, signs of nervous system dysfunction are uncommon but clinically relevant. This review helps clinicians managing Henoch-Schönlein syndrome with nervous system dysfunction.
Garzoni
Luca
L
Department of Paediatrics, Mendrisio and Bellinzona Hospitals, University Children's Hospital Bern, University of Bern, Bern, Switzerland.
Vanoni
Federica
F
Rizzi
Mattia
M
Simonetti
Giacomo D
GD
Goeggel Simonetti
Barbara
B
Ramelli
Gian P
GP
Bianchetti
Mario G
MG
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002493:Central Nervous System Diseases / Q000175:diagnosis; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications; D011695:IgA Vasculitis / Q000175:diagnosis*; D007223:Infant; D007231:Infant, Newborn; D007674:Kidney Diseases / Q000150:complications; D008297:Male; D009422:Nervous System Diseases / Q000175:diagnosis* / Q000209:etiology; D010523:Peripheral Nervous System Diseases / Q000175:diagnosis; D055815:Young Adult