1743-8454-1-S1-S49 1743-8454 Poster Presentation <p>Reasons for shunting and reasons for revision: a survey based on data from the UK Shunt Registry</p> Richards H hkr10@medschl.cam.ac.uk Seeley H Pickard J

Academic Neurosurgery, Addenbrooke's Hospital, Cambridge, UK

 Cerebrospinal Fluid Research <p>48th Annual Meeting of the Society for Research into Hydrocephalus and Spina Bifida</p> Meeting abstracts - A single PDF containing all abstracts in this Supplement is available here http://www.biomedcentral.com/content/pdf/1743-8454-1-S1-info.pdf <p>48th Annual Meeting of the Society for Research into Hydrocephalus and Spina Bifida</p> Dublin, Ireland 23–26 June 2004 http://www.srhsb.org 1743-8454 2004 1 Suppl 1 S49 http://www.cerebrospinalfluidresearch.com/content/1/S1/S49 10.1186/1743-8454-1-S1-S49 23 12 2004

Data from the UK Shunt Registry for procedures carried out between May 1999 and April 2002 was examined for the given reason for shunting and the given reasons for subsequent revisions. Sixty-eight per cent of patients receiving shunts had 'secondary' hydrocephalus, with congenital and idiopathic hydrocephalus accounting for 18% and 14% respectively. Patients with Spina Bifida represented 5.1% of shunted patients.

<p/>

Reasons for Shunting

(%)

Congenital Hydrocephalus

17.8

Cysts

4.1

Tumours

25.0

Infection

5.8

Haemorrhage

25.6

Idiopathic Hydrocephalus

14.6

Other

7.3

The occurrence of underdrainage, overdrainage, disconnection, fracture, infection and migration were broken down by clinical diagnosis. Underdrainage is by far the most common given reason for revision, and appears not to vary with clinical diagnosis. Infection, disconnection, migration and fracture are associated with young age rather than any particular diagnosis. Overdrainage is particularly high in patients with Chiari malformations