The Society of British Neurological Surgeons

Neurosurgical National Audit Programme

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Surgeon

Mr David Choi MA MBChB PhD FRCS
Professional Title Neurosurgeon
GMC Number 3679652
Personal Email rebecca.charikar@uclh.nhs.uk
Secretary Rebecca Charikar 0203 448 3395 rebecca.charikar@uclh.nhs.uk
SBNS Member? Yes

Hospitals

Training


MA, Cambridge University 1989, MBChB Edinburgh University 1992, PhD Open University 2004, FRCS (SN) Intercollegiate Surgical Colleges 2004,

2005

Edinburgh University 1989-1992

Institute of Neurological Sciences, Southern General Hospital, Glasgow, Atkinson Morley's Hospital, London, St Georges Hospital, London, The National Hospital for Neurology and Neurosurgery, London

Professional Activity


Reader in Neurosurgery, UCL

Honorary Consultant Neurosurgeon, UCLH,

Society of British Neurological Surgeons,

British Association Spinal Surgeons,

British Skull Base Society,

Society of University Neurosurgeons (US)

N/A

Clinical Activity


Spine neuro-oncology, including spinal sarcomas, spinal metastases, intramedullary spinal cord tumours, intradural tumours, Spinal, including degenerative spine disease, spinal fusion, spinal arthroplasty, instrumentation, complex spine, revision spinal surgery, cervical spine, Skull base, including anterior skull base surgery, transoral and endoscopic techniques, Trauma, including brachial plexus avulsion , Pain, including brachial plexus avulsion, DREZ lesion

Director of Spinal Repair Unit, UCL Institute of Neurology Director of Advanced Therapeutic Medicinal Products in Queen Square (cellular therapies)

Research


Spinal Metastases Spinal Regeneration follow UCL link: http://iris.ucl.ac.uk/iris/browse/profile?upi=DCHOI64

follow UCL link: http://iris.ucl.ac.uk/iris/browse/profile?upi=DCHOI64

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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