External resources
- Cromwell Hospital Profile: https://www.bupacromwellhospital.com/find-a-doctor/find-a-consultant/john-janssen/
- Chelsea Outpatient Centre Profile: http://www.chelseaoutpatientcentre.com/specialties/dr-john-janssen/
- Lister Hospital Profile : http://www.thelisterhospital.com/consultant-search/dr-john-janssen/
- ReCognition Health Profile: https://recognitionhealth.com/team/
Current NHS consultant posts held
Chelsea and Westminster Hospital
Royal Brompton Hospital
Charing Cross Hospital
Research interests
TIA, stroke, headache, Alzheimer's disease, general neurology
Awards received
NHS Clinical Excellence Award 2019
NHS Clinical Excellence Award Level 5 - 2016
Chelsea and Westminster TIA Service Gold Award 2012
Chelsea and Westminster Employee of the Month June 2009
(Additional) Languages spoken
Publications
Selected publications:
1. Device closure for patent foramen ovale following cryptogenic stroke: a survey of
current practice in the UK. Open Heart. 2017
2: Extended phenotypic spectrum of KIF5A
mutations: From spastic paraplegia to axonal neuropathy. Neurology. 2014
3: Exome sequencing reveals a novel
partial deletion in the progranulin gene causing primary progressive aphasia. J
Neurol Neurosurg Psychiatry. 2013
4: Neuroimaging in transient global amnesia. Pract Neurol. 2013
5: Recurrent sensory and motor neuropathy. Pract Neurol. 2012
6 Shunt responsive progressive supranuclear palsy? Mov Disord. 2007
7: A decade of pre-diagnostic assessment in a case of familial Alzheimer's disease: tracking progression from asymptomatic to MCI and dementia. Neurocase. 2005
8: Mapping the onset and progression of atrophy in familial frontotemporal lobar degeneration. J Neurol Neurosurg Psychiatry. 2005
9: The natural history of Alzheimer disease: a longitudinal presymptomatic and symptomatic study of a familial cohort. Arch Neurol. 2004
10: The prevalence of oligoclonal bands in the CSF of patients with primary neurodegenerative dementia. J Neurol. 2004
11: Change in rates of cerebral atrophy over time in early-onset Alzheimer's disease: longitudinal MRI study. Lancet. 2003
12: Assessing the onset of structural change in familial Alzheimer's disease. Ann Neurol. 2003
13: Early onset familial Alzheimer's disease: Mutation frequency in 31 families. Neurology. 2003
14: Presenilin-1 mutation (E280G), spastic paraparesis, and cranial MRI white-matter abnormalities. Neurology. 2002
15: Neuropathologic variation in frontotemporal dementia due to the intronic tau 10(+16) mutation. Neurology. 2002
16 Clinical features of frontotemporal dementia due to the intronic tau 10(+16) mutation. Neurology. 2002
17: Sequence analysis of tau in familial and sporadic progressive supranuclear palsy. J Neurol Neurosurg Psychiatry. 2002
18: Imaging of onset and progression of Alzheimer's disease with voxel-compression mapping of serial magnetic resonance images. Lancet. 2001
19: Alzheimer's disease due to an intronic presenilin-1 (PSEN1 intron 4) mutation: A clinicopathological study. Brain. 2000
Courses offered to GPs
Regular Breakfast Talks at Lister Hospital some recent talks included Headache an Overview, TIA Update, Dizziness a Practical Approach, and Alzheimer's disease early diagnosis
Regular GP talks at Re:Cognition Health on dementia related subjects including Dementia Videos, Genetics of Dementia, Assessment of Dementia
Regular Individual GP practice talks
RCGP masterclasses 2013 Fits, faints, and headaches