Every one a published decision of the courts of England and Wales, linked to its source.
Claimant succeeded£550,000
[2026] EWHC 1284 (KB)·2026·Liability decided at trial
A patient developed life-threatening pancreatitis after a gallstone-removal ERCP. The judge found the consultant never prescribed or instructed the standard preventive diclofenac suppository, so it was not given, and entered judgment for £550,000 against him.
Failing to give a recognised prophylactic drug before a procedure can be negligent even in private care. The prescribing doctor, not the hospital, carried the liability here.
Claimant succeeded£1.2M
[2024] EWHC 1360 (KB)·2024·Liability decided at trial
Mr Healey died nine days after bowel cancer surgery at a private hospital when a leak at the surgical join was not recognised in time. The hospital settled the widow's claim for £1.2 million and the court ordered the surgeon to bear 75% of it, finding his failure to diagnose the leak the principal cause of death.
Post-operative deterioration after bowel surgery must prompt urgent consideration of a leak. Both the private hospital and the individual surgeon can be liable, with the court apportioning responsibility between them.
Claimant succeeded
[2017] EWHC 497 (QB)·2017·Liability decided at trial
Mrs Thefaut was told her disc operation had about a 90% chance of curing her leg pain and would probably settle her back pain, with tiny risks. Green J found the real prospects and risks were materially different, that she was not properly informed, and that the claim succeeded on consent although the surgery itself was not negligently performed.
Overstating the benefits or understating the risks of surgery can breach the Montgomery duty even when the operation is done competently. Patients must be given a fair picture including the option of not operating.
Claimant succeeded
[2020] EWHC 2902 (QB)·2020·Liability decided at trial
A 79-year-old with macular degeneration was persuaded to have an intraocular lens implant in her better eye without proper informed consent, then developed raised eye pressure that the surgeon left untreated for five weeks. Stacey J found the surgeon negligent both in consenting and in delaying laser treatment, causing total blindness in that eye.
Private eye surgeons must obtain genuinely informed consent and act promptly on post-operative complications. A delay that materially contributes to permanent damage is enough for liability even if some harm had already occurred.
Claimant succeeded£92,391
[2013] EWCA Civ 117·2013·Appeal decision
Mrs Thomas's bile duct was injured during keyhole gallbladder removal and the surgeon also failed to arrange fluid and kidney monitoring when she was readmitted unwell. The trial judge found both failures negligent and awarded £92,391; the Court of Appeal dismissed the surgeon's appeal.
Bile duct injury during gallbladder surgery is not automatically negligent, but a court can find negligence where the anatomy was recognised and the injury still occurred, and separately for inadequate monitoring afterwards.
Claimant succeeded
[2018] EWHC 1225 (QB)·2018·Liability decided at trial
Two days after spinal fusion surgery Mrs Lesforis suddenly lost movement in her feet; re-operation found a compressive blood clot. Martin Spencer J held it was negligent to give the blood-thinner Clexane routinely within about three hours of spinal surgery, which caused the haematoma, although the timing of the re-operation was not negligent.
Routine practices that fall outside the normal range at the time can be negligent even if the surgeon always did it that way. Post-operative anticoagulation after spinal surgery carries a recognised bleeding risk that must be weighed for each patient.
Claim failed
[2025] EWHC 2576 (KB)·2025·Liability decided at trial
After a sleeve gastrectomy the claimant had trouble swallowing; the surgeon performed a gastroscopy and balloon dilatation, after which the sleeve leaked. The judge found no breach of duty in the post-operative care or the dilatation and dismissed the claim despite the very serious consequences.
A bad outcome after a recognised complication is not enough; the claimant must show the treatment decision fell outside what a responsible body of surgeons would do. Sympathy for the patient does not change the legal test.
Claim failed
[2025] EWHC 2025 (KB)·2025·Liability decided at trial
The claimant developed anal stenosis after a private haemorrhoidectomy and argued her haemorrhoids had been over-graded, non-surgical options were not discussed and the stenosis risk was not explained. The judge found the grading was correct, alternatives were discussed and the risk was disclosed on the consent form and in the information leaflet, so the claim was dismissed.
Documented consent, including a signed form and a written leaflet naming the specific complication, can be decisive in defeating a Montgomery consent claim.