Surgical techniques to cure atrial fibrillation
Outcome measures of RF ablation
Effects of NICE ICD guidelines on clinical practice
Current membership(s) of professional, national and regional bodies
Fellow of the Royal College of Physicians of Ireland (FRCPI)
Fellow of the Royal College of Physicians London (FRCP)
Fellow of the American College of Cardiology (FACC)
Heart Rhythm UK member
Heart Rhythm Society member
International Board of Heart Rhythm Examiners 2009-2019
Telephone number to make private appointment
029 2073 6011
Dr O'Callaghan is the lead clinician for heart rhythm and pacing services at the University Hospital of Wales, Cardiff, providing tertiary referral services for South East Wales, a referral population of 1.3 million. Prior to his consultant appointment in 2001 he trained at Massachusetts General Hospital, Boston, and St George's Hospital, London, having entered the speciality of electrophysiology in 1994.
Dr O'Callaghan's main interests lie in curing ablatable tachycardias and implantation of devices to prevent blackouts or sudden death (pacemakers and defibrillators) or to treat heart failure (biventricular pacmakers).
At Spire Cardiff Hospital Dr O'Callaghan provides a comprehensive electrophysiology service including the investigation and management of patients with palpitations, blackouts and cardiac arrest survivors or their family members; management of atrial fibrilation, Wolff Parkinson White Syndome, SVTs; ablation of tachycardias and implantation of pacemakers, defibrillators and biventricular pacing systems.