§ GUIDE · BLOOD CLOTS

A clot that should
have been caught

Blood clots run through the published judgments in three forms: a clot in the lung or leg that a doctor did not suspect, a clot that formed because blood thinners were not given, and a clot in the brain or a limb that was mistaken for something else. Four of the eight judgments here succeeded. The losses are the more instructive.

Judgments read

8

Claimant succeeded

4 of 8

Largest sum stated

£150,000

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§ BEFORE YOU GO FURTHER

For a blood clot claim to get anywhere, these things usually need to be true

  • You reported symptoms a doctor should have linked to a clot: chest pain with breathlessness, a swollen painful calf, a cold pale limb, or a previous clot in your history.
  • Or you were an inpatient or recently discharged, and the standard blood-thinning injections or tablets were not given.
  • A scan, a risk score or the drug would realistically have been given in time and would have prevented the clot or its consequences.
  • It happened within the last three years, or you only recently found out.

Two of the losses accepted the care was poor but found there was no clot at the time, or that the clot was not the kind alleged. Test results such as D-dimer and the timeline of symptoms decide these claims.

§ 01

Clots that were not suspected

Marshall v Schembri is the reference win. A woman with a previous pulmonary embolism saw her GP with chest pain and breathlessness and was told it was a strained muscle; she died the next morning. The GP admitted he should have referred her to hospital, and the court found she would very probably have survived with anticoagulation. A past clot plus chest symptoms is a same-day referral.

Critchlow v University Hospitals of North Midlands is the loss to read alongside it. The trust admitted it should have done a Wells score and imaging at the first A&E visit, but the judge found the claimant did not actually have a clot on that date, with normal D-dimer results as the decisive evidence.

§ 02

Blood thinners not given

Tuffin v University Hospitals Dorset involved thromboprophylaxis omitted after surgery, leading to a deep vein thrombosis and post-thrombotic syndrome. Pickering v Cambridge University Hospitals: a patient discharged from A&E without anticoagulation went on to have a massive stroke, and the court found for the claimant. Dakin v South Tees: recurring palpitations were never monitored, atrial fibrillation went undetected, and the stroke six months later would have been prevented by blood thinners.

The common thread is a recognised trigger for anticoagulation, on the ward or at discharge, that was not acted on.

§ 03

Clots mistaken for something else

Runciman v University Hospital Southampton: a cerebral venous sinus thrombosis was treated as an ordinary arterial stroke, and the claim failed. Beatty v Lewisham and Greenwich: an embolism in the foot was diagnosed as vasculitis, and the leg was lost; the claim failed on the evidence. JAH v Burne is the contrast: arterial clots in a woman with learning difficulties went unrecognised across several consultations, and judgment for £150,000 was entered against one GP for the arm.

Where the clot is unusual, the court asks whether a reasonable clinician would have suspected it at the time, not whether it was obvious afterwards.

§ 04

What a solicitor will want

Every consultation before the clot, with the symptoms recorded. Any risk score, D-dimer or scan result. The drug chart for any hospital stay, showing whether prophylaxis was prescribed and given. And the timeline from first symptom to diagnosis, which decides whether earlier action would have changed the outcome.

§ THE JUDGMENTS BEHIND THIS GUIDE

The eight judgments behind this guide.

Every one a published decision of the courts of England and Wales, linked to its source. Four losses and four wins.

Claimant succeeded

Marshall v Schembri

[2019] EWHC 283 (QB)·2019·Liability decided at trial

A woman with a previous pulmonary embolism saw her GP with chest pain and breathlessness and was diagnosed with a strained muscle; she died the next morning. The GP admitted he should have referred her to hospital, and Stewart J found she would on the clear balance of probabilities have survived with anticoagulation and monitoring.

Chest pain and breathlessness in someone with a past clot is a red flag needing same-day hospital referral. Where survival chances on admission would have been very high, the court will find the death was caused by the failure to refer.

Claim failed

Critchlow v University Hospitals of North Midlands NHS Trust

[2022] EWHC 949 (QB)·2022·Liability decided at trial

A former lorry driver with a history of pulmonary embolism attended A&E and clinics in 2015 with chest pain and calf symptoms; the Trust admitted it should have done a Wells score and imaging at the first visit. The judge found he did not actually have a clot on that date and that the later reduction of his apixaban was not negligent, so the claim failed.

An admitted failure to investigate only leads to compensation if the investigation would have found something. Normal D-dimer results were decisive evidence against a missed clot.

Mixed outcome

Jessica Tuffin v University Hospitals Coventry and Warwickshire NHS Trust

[2024] EWHC 3318 (KB)·2024·Liability decided at trial

After spinal surgery the hospital failed to give Ms Tuffin the prescribed anti-clotting injection, and she developed a deep vein thrombosis and post-thrombotic syndrome; three years later her leg was amputated above the knee. The judge held the trust liable for the DVT and its after-effects but found the amputation was caused by complex regional pain syndrome from the surgery itself, not the clot.

A missed dose of thromboprophylaxis that causes a DVT is negligent, but compensation covers only the harm the clot actually caused. Where a separate condition drives the worst outcome, the claimant must show the negligence at least materially contributed to it.

Claimant succeeded

Phoebe Charmaine Pickering v Cambridge University Hospitals NHS Foundation Trust

[2022] EWHC 1171 (QB)·2022·Liability decided at trial

Ms Pickering, who had atrial fibrillation, attended A&E with a cold, white leg; doctors diagnosed a resolved ischaemic event and sent her home on aspirin without heparin or a warning about her stroke risk. She had a major stroke 67 hours later, and the court found that anticoagulation would have prevented it.

A transient blockage in a limb can signal a clot from the heart, and discharging such a patient without anticoagulation or advice was admitted to be negligent. The case turned on causation, with the court accepting expert evidence that heparin would have stopped the clot progressing.

Claimant succeeded

Dakin v South Tees Hospitals NHS Foundation Trust

[2026] EWCC 26·2026·Liability decided at trial

A theatre nurse with worsening palpitations saw a hospital physician who admittedly failed to arrange 24-hour ECG monitoring. The judge found monitoring would have caught her atrial fibrillation in time for anticoagulants to prevent the stroke she suffered.

Palpitations that keep coming back need proper heart-rhythm monitoring. Where a missed test would have led to blood-thinning treatment, a later stroke can be laid at the hospital's door.

Claim failed

Runciman v University Hospital Southampton NHS Foundation Trust

[2024] EWHC 1800 (KB)·2024·Liability decided at trial

A widower claimed that doctors at Southampton General misdiagnosed his wife's rare cerebral venous thrombosis as a stroke, gave her clot-busting drugs and delayed the correct treatment, leading to her death. The judge found the clinicians acted reasonably on the presentation and that even earlier correct treatment would probably not have saved her.

A tragic outcome after a rare condition is missed does not by itself prove negligence; the question is whether a reasonable body of doctors would have acted the same way on the information available. Causation must be proved separately.

Claim failed

Jacqueline Beatty v Lewisham and Greenwich NHS Trust

[2023] EWHC 3163 (KB)·2023·Liability decided at trial

Ms Beatty, in hospital with severe cellulitis, developed ischaemic toes; a vascular surgeon diagnosed vasculitis rather than an embolism and did not order a CT angiogram, and she later needed a below-knee amputation. The judge found the surgeon's diagnosis was supported by a responsible body of medical opinion and dismissed the claim.

A diagnosis that turns out to be wrong is not automatically negligent; if a responsible body of specialists would have reached the same view on the information available, the claim fails under the Bolam test.

Claimant succeeded£150,000

JAH v Burne & Ors

[2018] EWHC 3461 (QB)·2018·Liability decided at trial

A woman with learning difficulties lost her arm and leg to blood clots in 2012 after several doctors and a hospital failed to spot a blocked artery. Martin Spencer J found only Dr Jackson negligent and causative, and only for the arm, awarding the agreed £150,000.

Where several clinicians see a deteriorating patient, the court examines each contact separately. Compensation was limited to the injury that the negligent consultation could actually have prevented.

Browse the whole case library →

Contains information licensed under the Open Justice - Licence v2.0. Judgments from Find Case Law, The National Archives. Summaries are ours; amounts only where printed in the judgment.

§ QUESTIONS

Common questions

I had a pulmonary embolism after my GP said it was a muscle strain.

Marshall v Schembri is that case, and it succeeded. Chest pain with breathlessness, especially with a past clot, calls for same-day hospital referral. Whether yours succeeds depends on what was recorded and on the timeline.

I was not given blood-thinning injections after my operation and got a DVT.

Tuffin is the reference case. Thromboprophylaxis after surgery is standard and the drug chart will show whether it was prescribed and given.

A&E admitted they should have scanned me. Is that enough?

No. In Critchlow the trust admitted exactly that, and the claim still failed because the evidence showed there was no clot on that date. Admitted breach is a start, not a result.

The clot was a rare kind and was treated as a normal stroke.

Runciman failed on this. The question is whether a reasonable clinician would have suspected the rarer clot at the time. Expert evidence decides it.

How long do I have?

Three years from the clot, or from when you first realised care fell short. For a death, the family has three years from the death.

This guide is general information about the law in England and Wales, not legal advice about your case. ClaimGavel is run by Costart Projects Ltd on behalf of Tomlin & Partners, a specialist medical negligence firm regulated by the SRA. The free assessment on this page is an AI overview to show you roughly where you stand; a solicitor confirms the position in a free, no-obligation conversation.