title: Parasystole in a mahaim accessory pathway.
abstract: Hypertrophic cardiomyopathy's (HCM) association with sudden cardiac death is well recognised. The risk of sudden cardiac death is known to increase when there is a history of unexplained syncope, abnormal blood pressure response during exercise, severe left ventricular hypertrophy or a family history of unexplained death. Implantable Cardioverter Defibrillator (ICD) implantation has been widely used for primary and secondary prevention of sudden cardiac death (SCD) in people with HCM. Subcutaneous ICD (S-ICD) therapy has been developed to overcome some of the problems associated with the transvenous leads used in conventional ICDs. In this article, we report the use of S-ICD in a patient with HCM and multiple risk factors for sudden cardiac death, this device had to be extracted due to recurrent inappropriate shocks caused by over sensing of atrial flutter and failure to treat a VT episode. We are not aware of any reports of inappropriate shocks caused by atrial flutter in people with a S-ICD.
authors: Cardiff and Vale University Health Board, United Kingdom.
authors: Roopa
authors: R
authors: Tekkatte
authors: Abertawe Bro Morganng NHS Trust, United Kingdom.
authors: Ahmed
authors: A
authors: Hamoud
authors: Abertawe Bro Morganng NHS Trust, United Kingdom.
authors: Claire
authors: C
authors: Warren
authors: Abertawe Bro Morganng NHS Trust, United Kingdom.
authors: James
authors: J
authors: Barry
keywords: Atrial Flutter; Inappropriate Therapies; Subcutaneous ICD