Key result
Mean moderate-vigorous physical activity was similar for hypertrophic cardiomyopathy patients with and without an implantable cardioverter defibrillator (254 vs 300 min/week, p=0.23).
Why the study?
Does an implantable cardioverter defibrillator impact physical activity levels and confidence to exercise in patients with inherited heart disease?
Cross-Sectional (n=218)
Does an implantable cardioverter defibrillator impact physical activity levels and confidence to exercise in patients with inherited heart disease?
Absolute Event Rate: 254% vs 300%
p-value: p=0.23
Having an ICD does not significantly reduce physical activity levels in patients with inherited heart disease, though anxiety about shocks remains a barrier to meeting activity guidelines.
May reassure on activity levels with ICD; leaves open anxiety effects on exercise confidence in inherited heart disease.
BACKGROUND: Physical activity is associated with improved quality of life. Patients with an implantable cardioverter defibrillator (ICD) face unique clinical and psychological challenges. Factors such as fear of ICD shock may negatively impact on physical activity, while a sense of protection gained from the ICD may instil confidence to be active. AIM: We aimed to examine the impact of an ICD on physical activity levels and factors associated with amount of activity. METHODS: Two cross-sectional studies were conducted. Accelerometer data (seven-day) was collected in March-November 2015 for 63 consecutively recruited hypertrophic cardiomyopathy patients, with or without an ICD, aged ⩾18 years. A survey study was conducted in July-August 2016 of 155 individuals aged ⩾18 years with an inherited heart disease and an ICD in situ. RESULTS: Based on the International Physical Activity Questionnaire, mean leisure time physical activity was 239 ± 300 min/week with 51% meeting physical activity guidelines. Accelerometry showed that mean moderate-vigorous physical activity was the same for patients with and without an ICD (254 ± 139 min/week versus 300 ± 150 min/week, p=0.23). Nearly half of survey participants ( n=73) said their device made them more confident to exercise. Being anxious about ICD shocks was the only factor associated with not meeting physical activity guidelines. CONCLUSIONS: Patients with inherited heart disease adjust differently to their ICD device, and for many it has no impact on physical activity. Discussion regarding the appropriate level of physical activity and potential barriers will ensure best possible outcomes in this unique patient group.
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Sweeting et al. (2017) conducted a cross-sectional in Inherited heart disease and hypertrophic cardiomyopathy (n=218). Implantable cardioverter defibrillator (ICD) vs. No ICD was evaluated on Moderate-vigorous physical activity (min/week) (p=0.23). Mean moderate-vigorous physical activity was similar for hypertrophic cardiomyopathy patients with and without an implantable cardioverter defibrillator (254 vs 300 min/week, p=0.23).
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