Cardioembolic stroke

Stroke and TIA in clinical negligence claims.

Expert witness reports on stroke and TIA of cardiac origin — atrial fibrillation, valvular heart disease, left atrial thrombus or intracardiac shunts. Claims typically arise where the cardiac source was missed, or where anticoagulation or structural intervention was delayed or omitted.

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  • Atrial fibrillation
  • Anticoagulation decisions
  • Cardioembolic source
  • Bolam · Bolitho
what we cover

The cardiac source and the legal questions it raises.

Cardioembolic stroke and TIA originate from cardiac sources — atrial fibrillation, left atrial thrombus, valvular heart disease or intracardiac shunts. Timely identification and management of these sources can prevent embolic events, and missed opportunities at primary care or in the emergency department drive much of the litigation in this area.

Our cardiologists assess whether the cardiac source was identified and managed in line with current NICE and ESC guidance on atrial fibrillation and the investigation of stroke and TIA. Where anticoagulation or rhythm control was indicated, the report addresses whether the decision met the Bolam and Bolitho standard and whether earlier intervention would have altered the outcome.

  • Breach questions typically address whether the cardiac source was identified through appropriate investigations — ECG, ambulatory monitoring, echocardiography or cardiac MRI — and whether management decisions aligned with current guidance.
  • Causation questions turn on whether earlier intervention — anticoagulation, rhythm control or structural repair — would have prevented the stroke or TIA on the balance of probabilities. Material contribution analysis is applied where pre-existing cardiac disease is present.
  • Anticoagulation decisions in atrial fibrillation are frequently scrutinised, particularly where the CHA2DS2-VASc score indicated a high stroke risk but anticoagulation was delayed, omitted or inappropriately reversed.
  • Valvular heart disease and intracardiac shunts may require subspecialty input, particularly where structural intervention was indicated but not pursued.
Clinical scope

The clinical questions our cardiologists answer.

Reports address the cardiology decisions in issue against current guidance and the Bolam and Bolitho standard.

Included in scope

Questions addressed

  • Whether the cardiac source of stroke or TIA was identified through appropriate investigations — ECG, ambulatory monitoring, echocardiography or cardiac MRI — in line with current guidance.
  • Whether anticoagulation decisions in atrial fibrillation aligned with the CHA2DS2-VASc score, including timing and choice of agent.
  • Whether rhythm control or structural intervention was indicated and pursued in line with current practice, particularly in valvular heart disease or intracardiac shunts.
  • Whether, on the balance of probabilities, earlier intervention would have prevented or mitigated the stroke or TIA, with material contribution analysis where appropriate.
  • Whether the decision to withhold or delay anticoagulation in high-risk patients met the Bolam and Bolitho standard, with bleeding risk weighed alongside stroke risk.
Out of scope

Not covered without separate instruction

  • Interventional procedural complications during structural repair (PFO closure, left atrial appendage occlusion), which sit with interventional cardiology instruction on procedural complications.
  • Cardiothoracic surgical decisions where valve replacement or repair was considered, addressed via cardiac surgery instruction.
  • Examination of the claimant or prognosis evaluation, which requires a separate condition and prognosis report.
  • Quantum, life expectancy and care needs, addressed through dedicated reports where the case progresses to that stage.
Common cases

Common scenarios we report on.

These patterns recur in cardioembolic stroke and TIA claims, most turning on whether the cardiac source was identified and managed in line with current guidance.

  • AF · Anticoagulation delay

    Missed anticoagulation in high-risk AF

    Patient with known atrial fibrillation and a CHA2DS2-VASc score ≥ 2 presented to primary care or A&E with palpitations. Anticoagulation was delayed or omitted despite the clear indication. Stroke followed within weeks. The report addresses whether the delay met the Bolam and Bolitho standard and whether earlier anticoagulation would have prevented the event.

    Often paired with: Breach of Duty Causation

  • TIA · Misdiagnosis

    TIA attributed to non-cardiac cause

    Patient presented with transient neurological symptoms suggestive of TIA. ECG and echocardiography were not performed, and the symptoms were attributed to migraine or anxiety. Subsequent stroke confirmed a cardioembolic source. The report examines whether the cardiac source should have been identified and whether earlier intervention would have altered the outcome.

    Often paired with: Breach of Duty Causation

  • Valvular · Structural

    Valvular heart disease — delayed intervention

    Patient with known mitral stenosis or a mechanical valve presented with worsening symptoms. Structural intervention was indicated but delayed, and stroke followed. The report addresses whether the delay met current guidance and whether earlier intervention would have prevented the event.

    Often paired with: Screening & Merits Breach of Duty

  • Primary care · Monitoring

    Inadequate monitoring of known AF

    Patient with known atrial fibrillation was not monitored for rhythm control or anticoagulation compliance. Stroke followed despite prior warnings. The report tests whether monitoring met the accepted standard and whether optimised management would have altered the event rate.

    Often paired with: Causation Condition & Prognosis

Reports

Report types commissioned for this condition.

These cases typically progress from screening into full liability work, with causation often the central battleground. Reports are CPR Part 35 compliant and signed by GMC-registered consultants.

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Stoke/TIA claims.

Send a short note on the alleged failings with the records bundle. Quotation returned the same working day; fast-track available where the trial window or limitation deadline requires it.

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