PMID- 17579245 OWN - NLM STAT- MEDLINE DCOM- 20080425 LR - 20121115 IS - 1099-5129 (Print) IS - 1099-5129 (Linking) VI - 9 IP - 10 DP - 2007 Oct TI - Non-contact mapping guided cardiac resynchronization therapy for a failing systemic right ventricle. PG - 880-3 AB - AIMS: Progressive systemic right ventricular (sRV) dysfunction, atrial and ventricular arrhythmias and sudden cardiac death are well-recognized late sequelae of atrial redirection surgery in which the right ventricle is left connected to the systemic circulation. Although cardiac resynchronization therapy (CRT) poses an attractive therapeutic option, little is known about indications, patient selection, and technical aspects of best lead placement. METHODS AND RESULTS: We undertook CRT in a 27-year-old female patient post-Mustard correction for d-transposition (d-TGA) with New York Heart Association (NYHA) grade III disability with QRS duration measuring 130 ms. There was also echocardiographic (TTE) evidence of severe sRV dysfunction. Non-contact mapping (NCM) was used to define sites of late activation within the sRV and the acute intra-arterial blood pressure (BP) response was assessed during implantation of a 4 french (F) lead onto the endocardial surface of the sRV. At 4 weeks post-implant sRV lateral wall motion had improved and the ejection fraction (EF) rose from 23 to 33%. The patient has been successfully anticoagulated and improved to NYHA II status after 6 months. CONCLUSION: The use of NCM proved safe and effective and provided a qualitative assessment of electrical viability of the sRV complimenting the measurement of mechanical function provided by TTE. The favourable clinical response in the above case justifies a prospective evaluation of this strategy. FAU - Michael, Kevin A AU - Michael KA AD - The Wessex Cardiothoracic Unit, Division of Clinical Electrophysiology, Southampton University Hospitals NHS Trust, Southampton General Hospital, Southampton SO16 6YD, Hampshire, UK. kevin_a_michael@yahoo.co.uk FAU - Veldtman, Gruschen R AU - Veldtman GR FAU - Paisey, John R AU - Paisey JR FAU - Robinson, Stephen AU - Robinson S FAU - Allen, Stuart AU - Allen S FAU - Sunni, Nadia S AU - Sunni NS FAU - Roberts, Paul R AU - Roberts PR FAU - Morgan, John M AU - Morgan JM LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070619 PL - England TA - Europace JT - Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology JID - 100883649 SB - IM MH - Adult MH - Blood Pressure MH - Bradycardia/therapy MH - Cardiac Catheterization MH - Cardiac Pacing, Artificial/*methods MH - Equipment Design MH - Female MH - Heart Conduction System MH - Heart Failure/therapy MH - Heart Ventricles/pathology MH - Hemodynamics MH - Humans MH - Treatment Outcome MH - Ventricular Dysfunction, Right/*therapy EDAT- 2007/06/21 09:00 MHDA- 2008/04/26 09:00 CRDT- 2007/06/21 09:00 PHST- 2007/06/21 09:00 [pubmed] PHST- 2008/04/26 09:00 [medline] PHST- 2007/06/21 09:00 [entrez] AID - eum076 [pii] AID - 10.1093/europace/eum076 [doi] PST - ppublish SO - Europace. 2007 Oct;9(10):880-3. doi: 10.1093/europace/eum076. Epub 2007 Jun 19.