Mr Oliver Warren was awarded the iWantGreatCare certificate of excellence in 2024 for delivering outstanding care.

 

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Written by a private patient at The Lister Hospital
6th April 2023


Dr. Warren is extremely professional and made me feel at ease from the first minute of my initial consultation. My hernia operation was the first operation of any kind. The procedure went very smoothly and after 48 hours I almost forgot that I had been operated on! I cannot recommend Dr. Warren enough. Simply brilliant. THANK YOU.

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Written by a private patient at The Lister Hospital
6th April 2023


Although these days an inguinal hernia repair is considered a very routine procedure, it is nonetheless always a cause for concern given the potential risks involved in any surgery and also specifically the concerns surrounding potential chronic pain from plastic mesh and other associated risks – albeit extremely small - such as the potential loss of a testicle (I believe worldwide a less than 1% chance but of course someone somewhere has to be in that small cohort!). In my case that concern was heightened given I was born with only one testicle (never a problem till now but suddenly a big worry). So the choice of surgeon – important at the best of times – in my case was even more important; I wanted to be sure I was in expert hands. And there is no doubt that with Mr. Warren, I could not have been in better hands. Mr. Warren was clear in my initial consult and answered all my questions; I felt confident I had found the right chap. But the proof, as they say, is in the pudding and indeed being now 4 weeks post-op (laparoscopic TEP repair), I can say I would not know I had had surgery. I am completely pain free – and in the main was pain free after about a week with only minor residual pain in the couple of weeks thereafter. So a great result from a great surgeon. I have no hesitation in highly recommending Mr. Warren.

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Written by a private patient at The Lister Hospital
5th April 2023


I am 85 which adds a concern about undergoing surgery and further concern about the residual effect in my remaining years. My consultations left me free of major concern and feeling confident with a satisfactory outcome. I agreed to the procedure to correct three failed hernia repairs, the last one leaving me with part of my intestine migrating into the hernia. I was surprised with the outcome of the surgery as there was no pain and I was quite mobile. I was released to home in four days but a re-infection resulted in a return for a further four days. Three months on and I am most satisfied with the outcome - no pain, no mobility problems, improved stomach muscles, all in all, a better quality of life.

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Written by a private patient at The Lister Hospital
4th April 2023


Very enthusiastic professional personable and courteous . I was reassured at different times on any concerns, and aftercare and follow up appointments were efficiently undertaken. Highly recommended.

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Written by a private patient at OneWelbeck
30th March 2023


Dr Warren was extremely professional and made me feel very comfortable from my initial consultation, throughout the colonoscopy process, and during my final check up. From start to finish I felt like I was in a very safe pair of hands and it was evident that Dr Warren is an absolute expert in his field. I would recommend seeing Dr Warren if you have any concerns, and the clinics where he is based are also really nice which is just a bonus!!

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Profile

Oliver is a Consultant Colorectal, Intestinal and Hernia Surgeon at Chelsea and Westminster Hospital, The London Clinic and The Lister Hospital. He has a high-volume practice in coloproctology and is a JAG accredited colonoscopist. He has an interest in hernias, including complex abdominal wall reconstruction. He performs over 50 colorectal resections per year, the vast majority using 'keyhole' surgery.

Prior to becoming a consultant surgeon he undertook colorectal surgery fellowships at St. Mark's Hospital, London and the Royal Prince Alfred Hospital, Sydney. He was a visiting fellow at the Cleveland Clinic, USA.

Oliver is an Honorary Senior Lecturer at Imperial College London and has written numerous scientific papers and book chapters on medical leadership, patient safety and surgical education. He is the co-author of the book 'Going into Hospital: A guide for patients, families and carers'.