PMID- 27332742 OWN - NLM STAT- MEDLINE DCOM- 20170803 LR - 20170817 IS - 1874-1754 (Electronic) IS - 0167-5273 (Linking) VI - 219 DP - 2016 Sep 15 TI - The impact of exercise on ventricular arrhythmias in adults with tetralogy of Fallot. PG - 218-24 LID - S0167-5273(16)31020-8 [pii] LID - 10.1016/j.ijcard.2016.06.011 [doi] AB - BACKGROUND: Sudden death of presumed arrhythmic etiology is the leading cause of mortality in adults with tetralogy of Fallot. OBJECTIVES: To assess the impact of exercise on ventricular arrhythmias in adults with tetralogy of Fallot. METHODS: Adults with repaired tetralogy of Fallot were randomized in a 2:1 ratio to an open-label trial of standard care versus 12weeks of supervised combined aerobic/resistance training with continuous Holter monitoring. Proportion of premature ventricular complexes (PVC) and runs of non-sustained ventricular tachycardia (NSVT) were assessed by mixed and Poisson regression models with generalized estimating equations for repeated measures. RESULTS: A total of 152 Holters were performed in 17 patients, median age 35 (interquartile range [IQR] 28, 42) years, 65% male, 13 of whom were randomized to exercise training. Baseline characteristics were similar between groups. Exercise training resulted in significant increases in peak oxygen uptake (11+/-19%, p=0.028), metabolic equivalents (11+/-18%, p=0.027), and exercise duration (8+/-10%, p=0.009) compared to no changes in controls. Frequent (>/=30 per hour) PVCs were present in 46% of patients, couplets in 62%, and 3 to 7 beat runs of NSVT in 31%. The median proportion of PVCs was 1.93 per thousand (IQR 0.41, 5.89) at baseline and 1.45 per thousand (IQR 0.08, 2.76) during the initial exercise session (p=0.722), and remained stable over time (ss coefficient=-0.031, p=0.408). Runs of NSVT decreased significantly over time (ss coefficient=-0.032, p=0.018). CONCLUSION: In adults with repaired tetralogy of Fallot, exercise training is safe, improves exercise capacity, and appears to confer a beneficial effect on ventricular arrhythmias. CI - Copyright (c) 2016 Elsevier Ireland Ltd. All rights reserved. FAU - Avila, Pablo AU - Avila P AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada; Department of Cardiology, Instituto de Investigacion Sanitaria, Hospital Gregorio Maranon, Universidad Complutense, Madrid, Spain. FAU - Marcotte, Francois AU - Marcotte F AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Dore, Annie AU - Dore A AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Mercier, Lise-Andree AU - Mercier LA AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Shohoudi, Azadeh AU - Shohoudi A AD - Montreal Health Innovations Coordinating Center, Universite de Montreal, Montreal, Canada. FAU - Mongeon, Francois-Pierre AU - Mongeon FP AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Mondesert, Blandine AU - Mondesert B AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Proietti, Anna AU - Proietti A AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Ibrahim, Reda AU - Ibrahim R AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Asgar, Anita AU - Asgar A AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Poirier, Nancy AU - Poirier N AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada. FAU - Khairy, Paul AU - Khairy P AD - Adult Congenital Heart Center, Montreal Heart Institute, Universite de Montreal, Montreal, Canada; Montreal Health Innovations Coordinating Center, Universite de Montreal, Montreal, Canada. Electronic address: paul.khairy@umontreal.ca. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20160614 PL - Netherlands TA - Int J Cardiol JT - International journal of cardiology JID - 8200291 SB - IM MH - Adult MH - Exercise/*physiology MH - Female MH - Humans MH - Male MH - Outpatient Clinics, Hospital/trends MH - Resistance Training/*methods/trends MH - Tachycardia, Ventricular/*physiopathology/*rehabilitation MH - Tetralogy of Fallot/*physiopathology/*rehabilitation OTO - NOTNLM OT - Exercise OT - Tetralogy of Fallot OT - Training OT - Ventricular tachycardia EDAT- 2016/06/23 06:00 MHDA- 2017/08/05 06:00 CRDT- 2016/06/23 06:00 PHST- 2016/04/29 00:00 [received] PHST- 2016/06/12 00:00 [accepted] PHST- 2016/06/23 06:00 [entrez] PHST- 2016/06/23 06:00 [pubmed] PHST- 2017/08/05 06:00 [medline] AID - S0167-5273(16)31020-8 [pii] AID - 10.1016/j.ijcard.2016.06.011 [doi] PST - ppublish SO - Int J Cardiol. 2016 Sep 15;219:218-24. doi: 10.1016/j.ijcard.2016.06.011. Epub 2016 Jun 14.