Vaccination knowledge and self-reported uptake in remotely monitored heart failure patients: a cross-sectional survey

Background Heart failure (HF) patients are vulnerable to respiratory and invasive infections and are prioritized for several adult vaccines. However, real-world uptake and the role of telemonitoring programmes as levers for prevention are insufficiently described. We aimed to characterize coverage and vaccination pathways to inform pragmatic reminder interventions in HF care. Methods In November 2025, we conducted a cross-sectional, self-administered survey among HF patients enrolled in the Satelia® Cardio remote monitoring programme in France. Participants reported vaccination knowledge and attitudes, intention to vaccinate if recommended by their physician, and self-reported status for five vaccines: seasonal influenza (this season), seasonal COVID-19 booster (this season), pneumococcal, diphtheria-tetanus-polio-pertussis booster (DTPC), and herpes zoster. We summarized responses as n (%) and computed 95% confidence intervals (CI) for coverage (Wilson method). Results Overall, 1,100 patients responded (mean age 71.5 years; 65.3% male). Most participants considered vaccination useful (87.5%) and knew where to get vaccinated (96.0%), while only 1.7% reported prior access difficulties. Knowledge of age-recommended vaccines was reported as yes by 75.0%, partial by 13.8%, and no by 11.2%. More than half wished to receive reminders from Satelia or the care team (55.1%), and 80.2% reported they would get vaccinated if their physician recommended it. Self-reported coverage was 62.2% for influenza (95% CI 59.3-65.0), 31.4% for COVID-19 (28.7-34.2), 34.5% for pneumococcal (31.7-37.3), 38.5% for DTPC (35.7-41.5), and 11.5% for herpes zoster (9.8-13.6). Community pharmacists delivered most influenza (66.4%) and COVID-19 vaccinations (81.2%), whereas DTPC was mainly administered by general practitioners (54.2%). Among participants reporting vaccination every year, 22.3% had not received influenza and 32.0% had not received COVID-19 vaccination this season. Conclusions In remotely monitored HF patients, vaccine acceptance indicators were high but uptake varied markedly across vaccines, with particularly low coverage for herpes zoster and the seasonal COVID-19 booster. The substantial willingness to receive reminders suggests an actionable opportunity for remote monitoring programmes to support personalized prompts and coordination with community pharmacies and primary care to improve preventive care.