Mr Alistair Slesser
Consultant Colorectal Surgeon
MBBS, MSc, MD(Res), FRCS(Gen.Surg)
Languages spoken
English, French
I have been a Consultant Colorectal Surgeon for over seven years. I am an expert in robotic and 'keyhole' cancer surgery and am also a specialist in abdominal wall reconstruction surgery with expertise in open, 'keyhole and robotic hernia surgery for all abdominal wall hernias including groin hernias. I am also an accomplished endoscopist performing colonoscopies and gastroscopies.
I specialise in colorectal and general surgery. My main interest lies in performing major resections for benign colorectal conditions and bowel cancer as well as complex hernia surgery. I have a very large practice and regularly perform surgery for all minor colorectal conditions including fistulae, haemorrhoids, pilonidal sinus surgery.
I also maintain a busy general surgery practice including surgery either keyhole or robotic for gallbladder surgery and all hernias including groin hernias. As part of performing complex hernia repairs I also repair diastasis recti.
To date in the NHS and the private sector, I have performed over 300 complex colorectal resections mainly for cancer. In my career I have easily performed over a 1,000 hernia operations including complex incisional hernia repairs, over 1000 minor colorectal procedures, over a 1,000 endoscopies as well as over 500 gallbladder operations.
Treatment information
Some of the principal treatments carried out by Mr Alistair Slesser at Spire include:
Colorectal surgery
- Anal fistula surgery
- Anal fissure surgery
- Anal warts surgery
- Bowel surgery, colostomy and ileostomy
- Cancer tests
- Haemorrhoids removal treatment
Endoscopy
- Colonoscopy
- Flexible sigmoidoscopy
- Gastroscopy
General surgery
- Gallbladder / gallstone removal (cholecystectomy)
- Hernia surgery
- Laparoscopy investigation and treatment
- Mole, cyst, wart and skin tag removal
Other treatments
- Abdominal wall reconstructions
- Laparoscopic hernia surgery
- Repair of diastasis recti
Get in touch
Important information about Covid-19 tests
COVID-19 testing or antibody tests are not available as a standalone service at Spire Thames Valley Hospital.
Additional information
Clinical interests
Bowel disease
Colonoscopy
Coloproctology
Endoscopy
Hernia repair surgery
Laparoscopic surgery
Qualification and professional memberships
MBBS / St Barts and the Royal London Medical School, London / 2003
Bachelor of Medicine, Bachelor of Surgery
MRCS (Eng) / Royal college of Surgeons of England / 2007
Member of the Royal College of Surgeons of England
MSc Surgical Sciences / Imperial College London / 2009
Master of Science
DIC / Imperial College London / 2009
Diploma of Imperial College London
MD (Res) / Imperial College London / 2016
Doctor of Medicine by Research
FRCS (Gen.Surg) / Royal college of Surgeons of England / 2016
Fellowship of the Royal Colleges of Surgeons
Professional memberships
Association of Surgeons of Great Britain (ASGBI)
The Association of Coloproctology of Great Britain and Ireland (ACPGBI)
European Society of Coloproctology (ESCP)
Professional leadership
Specialty Lead for Cancer Services, The Hillingdon Hospitals NHS Foundation Trust
Abdominal wall reconstruction lead, The Hillingdon Hospitals NHS Foundation Trust
Current NHS posts
The Hillingdon Hospitals NHS Foundation Trust
Hon. Clinical Senior Lecturer, Imperial College, London
Personal profile
In my spare time I enjoy playing sport and walking with my children.
Contact information
| Website | https://mralistairslesser.com/ |
| Private secretary | Yasmin |
| Private secretary telephone | 07414 132 651 |
| Private secretary email | info@alistairslesser.com |