Dr Peter Mezes - Radiology

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GMC Number: 6148689

Year of first qualification: 2000

Specialty: Radiology

Clinical interest: Vascular and interventional radiology

Secretary: Alex Bessant

Telephone: 0117 414 9007

Dr Peter Mezes gained his Diploma in Medicine in 2000, became a Specialist in Radiology in 2010 and gained his European Board of Interventional Radiology qualification in 2012.

Dr Mezes areas of interest includes endovascular interventions (peripheral arterial disease, endovascular aneurysm repair, venous intervention, venous and haemodialysis access, transarterial embolisation including uterine fibroids).

His non vascular interventions interests includes upper and lower gastrointestinal stenting, percutaneous biliary procedures, percutaneous nephrostomy and ureteric stenting, percutaneous image guided biopsies.

Professional memberships:

  • British Society of Interventional Radiology (BSIR)
  • Cardiovascular and Interventional Radiology Society of Europe (CIRSE)
  • European Society of Radiology (ESR)
Mezes

Dr Louise Powter - Medical Admissions

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GMC Number: 6025705

Year of first qualification: 2001, University of Bristol

Specialty: Acute Medicine

Clinical interests: Ambulatory Emergency Care

Secretary: Lisa Williams

Telephone: 0117 414 1141

Dr Louise Powter has been a consultant physician at North Bristol NHS Trust since October 2013.

She has an interest in Ambulatory Emergency Care. She is also an IMPACT (Ill Medical Patients Acute Care and Treatment) and Advance Life Support instructor.

She is a member of the Royal College of Physicians and the Society for Acute Medicine.

Powter

Dr Ana Terlevich - Gastroenterology

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GMC Number: 4406071

Year of first qualification: 1997, University of Bristol

Specialty: Gastroenterology

Clinical interests: Inflammatory Bowel Disease

Secretary: Sally Bale

Telephone: 0117 414 6352

Dr Ana Terlevich is the endoscopy training lead for North Bristol NHS Trust (NBT). 

In addition, she has specialist interests in Inflammatory Bowel Disease, nutrition, small bowel disease and Enteroscopy, including wireless capsule enteroscopy and double balloon enteroscopy.  

Terlevich

Dr Demetris Poyiatzis - Cellular Pathology

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GMC Number: 6130706

Year of first qualification: 1999, Semmelweis University, Budapest, Hungary

Specialty: Histopathology / Cellular Pathology

Clinical interest: Breast, skin, soft tissues

Secretary: Alison Johnson

Telephone: 0117 414 9830

Dr Demetris Poyiatzis obtained his medical degree at Semmelweis University, Budapest, Hungary in 1999. Following graduation he decided to pursue a career in pathology. During his residency years, he developed a special interest in tumour pathology and was actively involved in this area at the National Institute of Oncology in Budapest, Hungary.

During Dr Poyiatzis's training in the UK as a Specialist Registrar in Histopathology he was mainly based at Southmead Hospital Bristol but the post involved rotations in both Teaching and District General Hospitals which included Bristol Royal Infirmary, Musgrove Park Hospital, Taunton, and Weston General Hospital. He successfully completed both the FRCPath part 1 and FRCPath part 2 examinations.

He currently works as a Histopathology consultant at Southmead Hospital Bristol and has developed special interest in Breast, Soft Tissue, and Skin pathology. He also reports breast cytology. He participates in general and specialist EQA schemes and also participates in audit work.

Poyiatzis

BUI Clinical Research

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At the Bristol Urological Institute (BUI), we are proud to lead a dynamic and inclusive research programme that spans the full spectrum of urological science—from laboratory-based discovery to cutting-edge clinical trials, artificial intelligence, and genomics. This broad portfolio enables us to offer our patients access to the most advanced diagnostics and treatments available today.

World-Class Expertise

Our clinicians are internationally recognised experts in their fields, contributing to global advances in urological care. From improving quality of life in Functional Urology to pioneering new treatments in Urological Cancers, our research is making a real difference.

Inclusive, Impactful Research

Our research is designed to benefit everyone. We actively include people of all genders, ethnicities, and socioeconomic backgrounds, ensuring our studies reflect the diversity of the communities we serve. Whether we’re leading national studies or collaborating with global partners, our goal is to answer the most important questions in urology and shape the future of care.

Patient Involvement

Patients are central to everything we do. We offer Patient and Public Involvement and Engagement (PPIE) opportunities for those who want to help shape research and improve outcomes for others. Your voice matters—and it helps us do better science.

Research in Functional Urology

Functional Urology includes very common conditions like urinary incontinence, overactive bladder and benign (non-cancer) prostate disease.

The Bristol Urological Institute is involved in research that is trying to understand how we can improve the quality of life of men and women who suffer from these conditions. The research spans from laboratory research to try to understand exactly how the brain controls the bladder through new questionnaires and what are the best tests to use for diagnosis, to what is the best operation for incontinence in men. Some of our research funding comes from the National Institute for Health Research (NIHR)-Health Technology Assessment (HTA) program.

Research in Urology Cancers

The BUI is the busiest urology cancer centre in the country. We are centre of excellence for robotic and open surgery for the treatment of prostate, bladder, renal, testicular and penile cancer.  However, research is an essential part of our work so that advances can be made that bring our patients better outcomes from their disease.

We strive to ensure that our research projects address important questions  which exist concerning all aspects of the treatment of patients with these cancers. We are involved in basic science research with our colleagues in both University of Bristol and the University of the West of England.

To see more details about our current research opportunities, please visit: Urology Current Research | North Bristol NHS Trust

 

Annual Scientific Meeting

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32nd Annual Scientific Meeting 3rd & 4th December 2026

Kidney Oncology & Endo Urology (Title TBC)

Meeting Chair: Francis Keeley

Invited Professors: 

Professor Andrea Minervini, ITA
 

Visiting Professorial Day - Thursday 3 December
Venue:  Southmead Hospital

Annual Scientific Meeting - Friday 4 December
Venue: Bristol Watershed Media Centre

 

Annual Scientific Meeting

For more information, contact:

Karen Evely
Telephone: 0117 4147942
Email: karen.evely@bui.ac.uk

Bristol Urological Institute
Southmead Hospital
Bristol
BS10 5NB