Addendum &
Supplementary
Reports
A supplementary cardiology opinion that updates or clarifies an existing report — addressing new evidence, CPR 35.6 questions, or a court direction. It supplements the original report and carries the same statement of truth.
- CPR Part 35 compliant
- CPR 35.6 answers
- Fixed fee available
Clarify or update cardiology
expert evidence.
An addendum is instructed where new evidence emerges, CPR 35.6 questions require formal answers, or the court directs further clarification of an existing cardiology report.
The addendum carries the same CPR Part 35 statement of truth as the original report and becomes part of the expert’s evidence. It remains independent, objective, and addressed to the court.
- CPR 35.6 questions from the opposing party requiring formal clarification within 28 days.
- New medical evidence such as updated imaging, troponin results, or post-mortem findings.
- Court directions under CPR 35.12 for joint expert discussions or further clarification.
- A response to opposing evidence where a supplementary opinion is needed on the other party’s cardiology report.
What the addendum covers.
The addendum addresses only the specific questions or evidence raised. It does not revisit the original opinion unless the court or CPR 35.6 questions direct it.
Formal answers
- Formal responses to CPR 35.6 questions, referenced where relevant against the Bolam and Bolitho framework.
- Assessment of new cardiac imaging, troponin trends, or post-mortem findings against contemporaneous NICE and ESC guidance.
- Clarification of methodology or references where the original report omitted detail required by Practice Direction 35.
- Whether the new evidence alters the original opinion on breach or causation, on the balance of probabilities.
- A CPR Part 35 statement of truth confirming the addendum forms part of the expert’s evidence.
Not covered
- Reopening the entire original report unless the court or CPR 35.6 questions specifically direct it.
- New opinions on unrelated cardiology issues not raised by the instructing party or the court.
- Examination of the claimant, or any view on condition and prognosis unless the addendum specifically addresses it.
Where we are regularly instructed
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Claimant · ACS
New troponin results
Initial troponin negative; repeat testing 12 hours later shows a rise. The addendum addresses whether the delayed diagnosis of NSTEMI reflects a departure from ESC guidance on serial troponin testing.
Often paired with: Breach of Duty Causation
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Defendant · AF
CPR 35.6 questions on anticoagulation
The opposing party asks whether the CHA₂DS₂-VASc score was correctly calculated and whether NICE guidance on anticoagulation in AF was followed. The addendum provides formal answers within 28 days.
Often paired with: Breach of Duty AF claims
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Claimant · Sudden death
Post-mortem findings
Post-mortem reveals hypertrophic cardiomyopathy. The addendum addresses whether the inherited condition was detectable on prior ECGs or echocardiography, and whether earlier intervention was indicated.
Often paired with: Combined Breach & Causation Inherited cardiac conditions
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Defendant · Opposing evidence
Response to claimant’s expert
The claimant’s cardiologist alleges a PCI delay caused ischaemic damage. The addendum addresses the methodology, references, and whether the conclusions align with ESC guidance on revascularisation timing.
Often paired with: Breach of Duty Critique & Rebuttal
Addendum format, length and turnaround.
Addenda are short — typically two to six pages, scoped to the specific questions or evidence raised. Standard instructions are returned within four to six weeks. Where a hearing date, a CPR 35.6 deadline or a limitation deadline requires it, an expedited timetable of two to four weeks is available subject to capacity.
Fixed fee where the addendum scope is contained. Larger or complex CPR 35.6 questions are quoted on an indicative basis with a cap. LAA rates and deferred payment terms available — full fee schedule.
Need an Addendum/Supplementary report?
Submit case details today via email or our contact form and receive a same-working-day quotation. For urgent CPR 35.6 questions, call using the phone number below.
Same-working-day quotation Fixed fee where the scope allows LAA rates available