The Society of British Neurological Surgeons

Neurosurgical National Audit Programme

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Surgeon

Professor Ludvic Zrinzo MD PhD FRCS
Professional Title Professor in Neurosurgery
GMC Number 5205507
Personal Email l.zrinzo@ucl.ac.uk
Secretary Deborah Phillips 0203 448 8726 Deborah.Phillips@uclh.nhs.uk
SBNS Member? Yes

Hospitals

Training


MD, Malta - 1995. MSc in Clinical Neuroscience (distinction), UCL, London - 2000. FRCSEd (Neuro.Surg), Edinburgh - 2005. PhD in Neurosurgery, UCL, London - 2011.

2007

University of Malta Medical School: 1990 - 1995

Stereotactic & Functional Neurosurgery Fellowship - UCLA, Los Angeles, USA: 2006 Stereotactic & Functional Neurosurgery Fellowship - Queen Square, London, UK: 2006-2007 London Deanery Training Programme: 2000-2007 (Oldchurch / Queen’s Hospital, National Hospital for Neurology & Neurosurgery, Great Ormond Street Hospital, Royal London Hospital, Atkinson Morley Hospital)

Professional Activity


Senior Lecturer in Neurosurgery: 2012 - Consultant in Neurosurgery: 2007 -

Society of British Neurological Surgeons (SBNS) The Movement Disorder Society (MDS) The British Society for Stereotactic and Functional Neurosurgeons (BSSFN) The European Society of Stereotactic and Functional Neurosurgeons (ESSFN) The World Society of Stereotactic and Functional Neurosurgeons (WSSFN)

None

Clinical Activity


functional; deep brain stimulation and stereotactic ablation for movement disorders; surgery for facial pain syndromes including microvascular decompression and neuromodulation (DBS and SPGS); MVD for hemifacial spasm; neurooncology 

Core member of movement disorder MDT, headache MDT, facial pain MDT, neuropsychiatry MDT, neurooncology MDT

Research


Research activity is mainly in the field of stereotactic and functional neurosurgery: - Using MRI-verified surgery to improve the safety accuracy and efficacy of Deep Brain Stimulation - Clinical application of advanced neuroimaging techniques - Novel brain targets and novel indications in neuromodulation - Past and ongoing clinical trials include DBS for severe refractory: Cluster headache and other autonomic cephalalgias, Tourette syndrome, Obsessive Compulsive Disorder, PD dementia, Dementia with Lewy-Body disease

Hariz, M., Blomstedt, P., & Zrinzo, L. (2013). Future of brain stimulation: New targets, new indications, new technology. Movement Disorders, 28(13), 1784–1792. Little, S., Pogosyan, A., Neal, S., Zavala, B., Zrinzo, L., Hariz, M., et al. (2013). Adaptive deep brain stimulation in advanced Parkinson disease. Annals of Neurology, 74(3), 449–457. Zrinzo, L., Foltynie, T., Limousin, P., & Hariz, M. I. (2012). Reducing hemorrhagic complications in functional neurosurgery: a large case series and systematic literature review. Journal of Neurosurgery, 116(1), 84–94. Zrinzo, L., Yoshida, F., Hariz, M. I., Thornton, J., Foltynie, T., Yousry, T. A., & Limousin, P. (2011). Clinical Safety of Brain Magnetic Resonance Imaging with Implanted Deep Brain Stimulation Hardware: Large Case Series and Review of the Literature. World Neurosurgery, 76(1-2), 164–172. Zrinzo, L., Zrinzo, L. V., Tisch, S., Limousin, P. D., Yousry, T. A., Afshar, F., & Hariz, M. I. (2008). Stereotactic localization of the human pedunculopontine nucleus: atlas-based coordinates and validation of a magnetic resonance imaging protocol for direct localization. Brain, 131(6), 1588–1598.

Outcome Report

SBNS
Understanding activity pie charts


What does the Consultant activity pie chart show?

The Consultant activity pie charts represent the total number of elective (planned) finished consultant episodes (FCEs) and non-elective (emergency) finished consultant episodes. A finished consultant episode usually represents the care of a single patient from admission to discharge.

Please note that for Consultants who provide both adult services for patients older than 17 years and paediatric services for patients 16 years old and younger there are two outcome reports.

Elective Procedural Case-mix and Case Volume
Image

SBNS
Understanding mortality funnel plot charts

What does the Consultant funnel plot chart show?

The Hospital Consultant mortality funnel plot represent the total number of elective (planned) finished consultant episodes (FCEs) and non-elective (emergency) finished consultant episodes. A finished consultant episode usually represents the care of a single patient from admission to discharge.

The mortality presented here is for three years: April 2014 – March 2017. Please note that for Consultant who provide both adult services for patients older than 17 years and paediatric services for patients 16 years old and younger there are two outcome reports.

The horizontal yellow line represents the national average mortality. The solid black lines above and below the yellow line are the control limits. The upper control limit represents the highest expected mortality rate. The Consultant's outcome is highlighted in magenta.

30 Day Risk Adjusted Elective Procedural Mortality
Image

The outcomes of this consultant are within the expected range

Understanding the risk-adjusted mortality rate

Risk adjustment (or case-mix adjustment) takes into account patient risk factors to calculate a predicted mortality rate. This means that hospitals or consultants who see higher risk patients have their mortality rate adjusted to account for the factors that put these patients at greater risk.

Understanding the 'funnel plot' diagram

The funnel plot displays the risk-adjusted elective procedural mortality ratio for each consultant plotted against the expected number of mortalities for that consultant. The expected number of mortalities for each consultant will vary depending on the number of procedures they have performed and the risk profile of the patients they have treated. The horizontal yellow line represents the expected ratio. The solid black line above the chart is known as a ‘control limit’. This control limit represents the highest expected mortality rate. Risk-adjusted rates appearing beneath this line are within the normal range.

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