Trends in phenotype in the English paediatric neurofibromatosis type 2 cohort stratified by genetic severity
dc.contributor.author | Halliday, D | |
dc.contributor.author | Emmanouil, B | |
dc.contributor.author | Vassallo, G | |
dc.contributor.author | Lascelles, K | |
dc.contributor.author | Nicholson, J | |
dc.contributor.author | Chandratre, S | |
dc.contributor.author | Anand, G | |
dc.contributor.author | Wasik, M | |
dc.contributor.author | Pretorius, P | |
dc.contributor.author | Evans, DG | |
dc.contributor.author | Parry, A | |
dc.contributor.author | Axon, P | |
dc.contributor.author | Gair, J | |
dc.contributor.author | Smyth, C | |
dc.contributor.author | Afridi, SK | |
dc.contributor.author | Obholzer, R | |
dc.contributor.author | Everett, V | |
dc.contributor.author | Jarvis, N | |
dc.contributor.author | Henshaw, K | |
dc.contributor.author | Hanemann, CO | |
dc.contributor.author | Howard, W | |
dc.contributor.author | May, A | |
dc.contributor.author | Redman, C | |
dc.contributor.author | Rattihalli, R | |
dc.contributor.author | Tomkins, H | |
dc.date.accessioned | 2019-10-28T09:12:55Z | |
dc.date.issued | 2019-08 | |
dc.identifier.issn | 0009-9163 | |
dc.identifier.issn | 1399-0004 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/15073 | |
dc.description.abstract |
<jats:title>Abstract</jats:title><jats:p>Childhood onset neurofibromatosis type 2 can be severe and genotype dependent. We present a retrospective phenotypic analysis of all ascertained children in England <age 18 (<jats:italic>N</jats:italic> = 87; male 61%). Mean age at last review was 13.9 years with mean follow‐up 6.5 years. Patients were stratified using a validated score (1A/1B:no <jats:italic>NF2</jats:italic> pathogenic_variant in blood; 2A/2B:mild/moderate <jats:italic>NF2</jats:italic> constitutional or mosaic pathogenic_variant in blood; 3: constitutional truncating exon 2‐13 pathogenic_variant. A total of 91% patients had a constitutional <jats:italic>NF2</jats:italic> pathogenic_variant (44% de novo). Mean age at first manifestation was 4.3 and 8.8 years in groups 3 and 2A, respectively. Bilateral vestibular schwannoma, intracranial meningioma and spinal schwannoma occurred in 77%, 52% and 65% of group 3 patients, respectively, and 58%, 26% and 33% in 2A. A total of 43% group 3 and 18% 2A had severe unilateral visual loss (logmar >1.0). Focal cortical dysplasia occurred in 26% group 3 and 4% 2A. A total of 48% of group 3 underwent ≥1 major intervention (intracranial/spinal surgery/Bevacizumab/radiotherapy) compared to 35% of 2A; with 23% group 3 undergoing spinal surgery (schwannoma/ependymoma/meningioma resection) compared to 4% of 2A. Mean age starting Bevacizumab was 12.7 in group 3 and 14.9 years in 2A. In conclusion, group 3 phenotype manifests earlier with greater tumour load, poorer visual outcomes and more intervention.</jats:p> | |
dc.format.extent | 151-162 | |
dc.format.medium | Print-Electronic | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Wiley | |
dc.subject | childhood NF2 | |
dc.subject | NF2 | |
dc.subject | NF2 genetic severity score | |
dc.subject | paediatric NF2 genotype phenotype | |
dc.title | Trends in phenotype in the English paediatric neurofibromatosis type 2 cohort stratified by genetic severity | |
dc.type | journal-article | |
dc.type | Article | |
plymouth.author-url | https://www.ncbi.nlm.nih.gov/pubmed/30993672 | |
plymouth.issue | 2 | |
plymouth.volume | 96 | |
plymouth.publication-status | Published | |
plymouth.journal | Clinical Genetics: an international journal of genetics and molecular medicine | |
dc.identifier.doi | 10.1111/cge.13551 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Health | |
plymouth.organisational-group | /Plymouth/Faculty of Health/Peninsula Medical School | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA01 Clinical Medicine | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Institute of Translational and Stratified Medicine (ITSMED) | |
plymouth.organisational-group | /Plymouth/Research Groups/Institute of Translational and Stratified Medicine (ITSMED)/CBR | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
plymouth.organisational-group | /Plymouth/Users by role/Researchers in ResearchFish submission | |
dc.publisher.place | Denmark | |
dcterms.dateAccepted | 2019-04-07 | |
dc.rights.embargodate | 2020-4-15 | |
dc.identifier.eissn | 1399-0004 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1111/cge.13551 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2019-08 | |
rioxxterms.type | Journal Article/Review |