Mr Roberts is a Consultant Cardiothoracic Surgeon and Expert Witness for over eight years, with excellent feedback from instructing solicitors. He has completed Bond Solon expert witness training alongside formal medico-legal training and regularly accepts instructions from both Claimants and Defendants, demonstrating a balanced and objective approach to expert opinion.

His specialist clinical expertise encompasses coronary surgery, coronary heart disease, aortic surgery, heart valve surgery, coronary artery bypass grafting, and the surgical management of atrial fibrillation. He is frequently instructed on cases involving complex operative decision-making, peri-operative complications, and long-term outcomes following cardiac surgery.

Mr Roberts has a particular professional interest in clinical governance, surgical safety standards, and WHO surgical safety checklist compliance. He has served as Clinical Governance Lead within his cardiothoracic department for over five years, during which time he developed extensive experience in serious incident investigations, root-cause analysis, complaint handling, and the application of NHS governance frameworks to improve patient safety and surgical outcomes.

Mr Roberts provides fully CPR Part 35–compliant Expert Witness reports, and is experienced in producing joint statements, responding to Part 35 questions, he has experience in providing evidence in court when required.

Mr Roberts has extensive experience with cases associated with:

Coronary artery bypass grafting (CAGB)

• Inappropriate patient selection
• Graft failure or technical error
• Inadequate post-operative monitoring

Valve surgery (aortic, mitral tricuspid)

• Incorrect valve choice or sizing
• Failure to repair vs replace
• Post-operative valve dysfunction or infection

Adult congenital cardiac surgery

• Surgical planning errors
• Failure to recognise residual defects

Thoracic (Non-Cardiac) surgery case

• Lung cancer surgery
  – Delayed referral for surgery
  – Inappropriate operability assessment
  – Complications after lobectomy or pneumonectomy
• Pleural disease
  – Management of empyema or recurrent effusions
  – Complications from thoracoscopy of chest drains
• Chest wall surgery
  – Post-operative infection or instability
  – Nerve or vascular injury

Peri-operative & critical care issues

• Failure to recognise or manage post-operative complications:
  – Bleeding or tamponade
  – Infection or mediastinitis
  – Stroke or neurological injury
  – Renal failure or multi-organ dysfunction
  – Inadequate handover, escalation or ICU management

Diagnostic and referral failures
Cases may arise before surgery occurs including:

• Missed or delayed diagnosis of:
  – Severe coronary artery disease
  – Valvular heart disease
  – Aortic aneurysm or dissection
• Failure to refer urgently for specialist surgical assessment

Consent & Governance cases
Focus on professional standards rather than technique:

• Inadequate or misleading informed consent
• Failure to discuss risk, alternatives, or no-surgical options
• Breath of national or local clinical guidelines
• Surgeon competence, supervision or training issues

Coroner’s inquest and fatal cases

• Cause of death following cardiac or thoracic surgery
• Whether earlier intervention would likely have changed outcome
• Standards of care in emergency vs elective settings

Mr Roberts’s availability is 3-4 weeks and has a report turnaround time of 4 – 6 weeks.