Telemedicine for the treatment of heart failure: new opportunities after COVID-19

Remote pulmonary artery pressure-guided management of patients with heart failure: A clinical consensus statement of the Heart Failure Association (HFA) of the ESC

Episodes of worsening heart failure (HF) are a major cause of unplanned hospitalizations. Their onset is usually preceded by an early increase in intracardiac pressures with subsequent worsening of symptoms due to congestion. Implantable devices allowing daily remote pulmonary artery pressure (PAP) monitoring are useful to identify early haemodynamic changes so that medical therapy can be adjusted at an early stage, before symptom onset, and HF-related hospitalizations be prevented. Second, the use of these devices may help to maintain clinical stability keeping PAP in the target range on a day-to-day basis. The CardioMEMS system allows remote PAP monitoring, and PAP-guided medical therapy has reduced HF-related hospitalizations in prospective, randomized, controlled clinical trials in symptomatic patients with HF, independent of their left ventricular ejection fraction. The safety and feasibility of other devices, like the Cordella implantable PAP sensor, have also been demonstrated and clinical usefulness in larger patient populations is currently being assessed in several trials. Most of the studies testing remote PAP monitoring were reported after the 2021 European Society of Cardiology HF guidelines. An update of the clinical significance and potential implications for clinical practice of these systems seems therefore warranted. The aim of this clinical consensus statement is to summarize current knowledge on remote PAP-guided management of patients with HF, with a special focus on current evidence from clinical trials, potential impact on clinical practice and management aspects.

Radiofrequency-based wearable sensor patch in heart failure management: a focused review

ZOLL Heart Failure Management System (ZOLL HFMS) is a non-invasive, remote monitoring device that employs radiofrequency signals transmitted through an adhesive patch embedded with integrated sensors to evaluate lung fluid levels. By analyzing trends in lung fluid status and related parameters, ZOLL HFMS may facilitate the early detection of heart failure (HF) decompensation and enable timely interventions. Insights from the recent BMAD trial (Impact of heart failure management using thoracic fluid monitoring from a novel wearable sensor: Results of the Benefits of Microcor [µCor™] in Ambulatory Heart Failure) highlight its promise in those with recent HF hospitalization, demonstrating a reduction in time to first HF readmission and improvement in quality of life. In this review, we summarize data on the ZOLL HFMS, with a focus on its lung fluid analysis mechanism for early HF decompensation detection and the accuracy of its measurements compared to other modalities. Then, we examine key outcomes from the recent BMAD trial, highlighting their clinical relevance and identifying gaps that warrant further investigation in future clinical trials. Lastly, we outline potential directions for integrating this technology into routine HF management.

Correlation Between the Online Visiting Time and Frequency Increase in Telemedicine Services Offered by Health Care Providers Before, During, and After the COVID-19 Pandemic in China: Cross-Sectional Study

BACKGROUND

China has changed its COVID-19 prevention and control status since 2023. However, what role telemedicine will play post-COVID-19 is still uncertain.

OBJECTIVE

We aimed to determine the frequency change in health care providers offering telemedicine services before, during, and after COVID-19, as well as the correlation between the frequency change and telemedicine visit time.

METHODS

The Telemedicine Informationization Professional Committee of China (TIPC) carried out a nationwide questionnaire survey. We adopted data from part of the questionnaires that answered questions regarding the frequency of offering telemedicine services before, during, and after the COVID-19 explosion. Chi-square tests were applied to compare general differences in the between-group telemedicine frequency. Regression models were performed to analyze correlations between the frequency change and the time spent in online versus in-person visits.

RESULTS

Questionnaires from 428 providers were included. As reported, 39 (9.11%) providers often and 159 (37.15%) always offered telemedicine services before COVID-19 exploded. The component ratio increased to 12.38% (n=53) of providers often and 45.79% (n=196) always offering telemedicine during COVID-19 explosion and 12.62% (n=54) often and 50% (n=214) always offering telemedicine after pandemic control was relaxed. The increase in frequency shown as a difference between the before and during groups (χ2=17.21, P.002) and between the before and after groups (χ2=30.17, P<.001) was significant, while it was insignificant between the during and after groups (χ2=2.89, P.57). Senior professional titles (odds ratio [OR] 4.38, 95% CI 1.72-11.6) and longer (OR 3.87, 95% CI 1.95-7.89) and shorter (OR 2.04, 95% CI 1.11-3.87) online visits were correlated with the increase in frequency during versus before COVID-19. In addition, senior professional titles (OR 3.47, 95% CI 1.46-8.49), longer (OR 3.14, 95% CI 1.64-6.11) and shorter (OR=2.27, 95% CI 1.31-4.07) online visits, and using third-party telemedicine platforms (OR 0.51, 95% CI 0.29-0.86) were correlated with the increase in frequency after versus before COVID-19. No factor was significantly correlated with the frequency change after versus during COVID-19. In stratified analysis, longer online visits were correlated with both during versus before (OR 3.84, 95% CI 1.73-8.83) and after versus before (OR 3.40, 95% CI 1.61-7.34) groups for providers using hospital-run platforms, while shorter online visits were correlated with both during versus before (OR 8.16, 95% CI 1.39-68.3) and after versus before (OR 5.70, 95% CI 1.22-33.6) groups for providers using third-party platforms.

CONCLUSIONS

The frequency of telemedicine has increased since the COVID-19 pandemic exploded and is correlated with the time spent in online versus in-person visits. The correlation is different for providers using hospital-run and third party platforms. On a hospital-run platform, providers with longer online visits have a higher frequency of offering telemedicine, while on a third-party platform, providers with shorter online visits are more likely to offer telemedicine.

Examining the clinical role and educational preparation of heart failure nurses across Europe. A survey of the Heart Failure Association (HFA) of the European Society of Cardiology (ESC) and the Association of Cardiovascular Nursing and Allied Professions (ACNAP) of the ESC

AIMS

To describe the clinical practice and educational preparation of heart failure (HF) nurses across Europe and determine the key differences between countries.

METHODS AND RESULTS

A survey tool was developed, in English, by the Heart Failure Association Patient Care committee of the European Society of Cardiology (ESC). It was translated into eight languages, before electronically disseminated by nurse ambassadors, presidents of HF national societies and through social media. A total of 837 nurses involved in the daily care of patients with HF from 15 countries completed the survey. Most nurses, 78% (n = 395) worked within a hospital outpatient setting, and 51% (n = 431) had access to a specialized HF multidisciplinary team. Nurses performed a range of activities including patient education to promote self-care, virtual and in-person symptom monitoring. A third had more than 5-year experience in cardiac care and 22% (n = 182) prescribed HF medications. There was a significant correlation between HF nurses that prescribed HF medications and access to a specialist multidisciplinary team (p = 0.04). A small number of nurses, mainly from Belgium, supported invasive monitoring (n = 68, 8%) with 14% (n = 120) of mostly Danish nurses supporting exercise programmes. The majority of nurses surveyed were committed to further academic professional development, with 41% (n = 343) having completed a HF course.

CONCLUSION

The role of the HF nurse varies across Europe, however involvement in patient education, symptom monitoring and follow-up remain core to their practice. In specific activities including the prescribing of HF medications and involvement in invasive monitoring, practice has advanced with collaboration in the multidisciplinary team. Consequently, harmonization of education, training and career pathways are required to standardize HF care aligned with expert guidelines across Europe.

Possible mechanisms of SARS-CoV-2-associated myocardial fibrosis: reflections in the post-pandemic era

Since December 2019, coronavirus disease 2019 (COVID-19) has been spreading worldwide with devastating immediate or long-term effects on people's health. Although the lungs are the primary organ affected by COVID-19, individuals infected with SARS-CoV-2 also develop systemic lesions involving multiple organs throughout the body, such as the cardiovascular system. Emerging evidence reveals that COVID-19 could generate myocardial fibrosis, termed "COVID-19-associated myocardial fibrosis." It can result from the activation of fibroblasts via the renin-angiotensin-aldosterone system (RAAS), transforming growth factor-β1 (TGF-β1), microRNAs, and other pathways, and can also occur in other cellular interactions with SARS-CoV-2, such as immunocytes, endothelial cells. Nonetheless, to gain a more profound insight into the natural progression of COVID-19-related myocardial fibrosis, additional investigations are necessary. This review delves into the underlying mechanisms contributing to COVID-19-associated myocardial fibrosis while also examining the antifibrotic potential of current COVID-19 treatments, thereby offering guidance for future clinical trials of these medications. Ultimately, we propose future research directions for COVID-19-associated myocardial fibrosis in the post-COVID-19 era, such as artificial intelligence (AI) telemedicine. We also recommend that relevant tests be added to the follow-up of COVID-19 patients to detect myocardial fibrosis promptly.

Telemedicine and Remote Management of Patients with Heart Failure: From Theory to Daily Practice

Background: Heart failure (HF) is responsible for a high number of hospitalizations, caused by a progressive worsening quality of life. Telemedicine allows for better management of patients' complex conditions, improving the care released. However, the risk of remaining at a testing stage often limits the integration of remote care in daily pathways for HF patients. The aim of this study is to outline the steps needed to integrate telemedicine activities into ordinary HF clinic practices. This methodology is applied to observe activities and trend improvements over a 12-month routine phase. Method: Three steps have been defined for an efficient introduction of remote care services in ordinary activities, integrating them with traditional in-person care: (i) introduction of temporary telemedicine projects, (ii) systematization of telemedicine pathways, and (iii) evaluation of monitoring phase. Observational data have been collected from structured interviews to show the rate of telemedicine activities achieved in clinical practice over the last year. Results: The methodology has been proposed in the HF clinic of the Italian hospital ASST Bergamo Est. After an initial testing phase, in which usability and user experience have been tested, four different remote activities were added: (i) telemonitoring for patients with an implantable device, (ii) follow-up televisits, (iii) nursing telephone support, and (iv) high-intensity telesurveillance pathways for patients after an HF acute event. During the last year, 218 telemonitoring pathways, 75 televisits, 500 telephone calls, and nine telesurveillance pathways have been performed. Success rates were high, and patients gave positive feedback. Conclusion: By integrating multiple telemedicine activities, it has been possible to better manage complex patients, keep track of disease progression, and improve their participation in care.

A meta-analysis of effectiveness of mobile health interventions on health-related outcomes in patients with heart failure

AIMS

To systematically evaluate the effectiveness of mobile health (mHealth) interventions on medication adherence in patients with heart failure.

METHODS

The literature search was conducted in PubMed, Web of Science, the Cochrane Library databases, Embase, China National Knowledge Infrastructure (CNKI), Wanfang Database and China Scientific Journal Database (VIP). The retrieval period was from the establishment of the database to May 2023. The included studies were trials to explore the effectiveness of mHealth interventions on medication adherence in patients with heart failure. Cochrane collaboration's tool was used for assessing risk of bias in randomized controlled trials. Stata 17.0 software was used to conduct data analysis. Continuous data were expressed as standard mean differences, and dichotomous data were expressed as relative risks with 95% confidence intervals (CIs).

RESULTS

A total of 13 studies and 2534 participants were included. One study was rated as Grade A, and the other 12 studies were Grade B. The results of meta-analysis indicate that mHealth interventions are effective in improving medication adherence [relative risk (RR) = 1.26, 95% CI 1.10-1.44, P < 0.05 and standard mean difference = 0.80, 95% CI 0.44-1.15, P < 0.05], and reducing readmission rates (RR = 0.63, 95% CI 0.53-0.76, P < 0.05) and mortality (RR = 0.63, 95% CI 0.43-0.94, P < 0.05) of patients with heart failure.

CONCLUSION

mHealth interventions are beneficial to improve medication adherence in patients with heart failure, and could effectively reduce the readmission rates and mortality of patients in the studies. There is a need to continuously improve the professional abilities of intervention personnel, carry out teamwork, and extend intervention and follow-up time. Convenient, fast and low-cost mobile medical devices should be adopted to reduce the cost of medical treatment. Scientific and reasonable intervention content will be formulated according to evidence-based guidelines and theoretical basis to enhance patients' ability at self-management and understanding of heart failure knowledge.

The COVID-19 Pandemic Was Associated with a Change in Therapeutic Management and Mortality in Heart Failure Patients

Background: Heart failure (HF)-related mortality has been exacerbated by the COVID-19 pandemic; however, it is unclear how healthcare reassessment has contributed to the excess mortality versus SARS-CoV-2 infection itself. We aimed to assess how the pandemic affected the therapeutic management and prognosis of HF patients. Methods: We retrospectively reviewed the healthcare utilization databases of the Lombardy region (Italy) to identify all newly-diagnosed HF patients from January 2018 to December 2021. Outcomes were the utilization of HF therapies (Sacubitril/Valsartan; cardiac resynchronization therapy [CRT] and/or implantable cardioverter-defibrillator [ICD]; mechanical circulatory support [MCS]; heart transplantation [HTX]) and mortality. Cox regression models were fitted to estimate the hazard ratios (HR) and 95% confidence intervals (CI) for outcomes associated with the pandemic. Results: 36,130 and 17,263 patients were identified in the pre-pandemic and pandemic eras, respectively. The pandemic reduced Sacubitril/Valsartan utilization (HR = 0.77, 95% CI: 0.65-0.91) and CRT/ICD implantation (HR = 0.85, 95% CI: 0.78-0.92), but not MCS (HR = 1.11, 95% CI: 0.86-1.43) and HTX (HR = 0.88, 95% CI: 0.70-1.09). An increased mortality risk was observed during the pandemic (HR = 1.19, 95% CI: 1.15-1.23), which was attributable to SARS-CoV-2 infection (HR for non-COVID-19-related mortality = 1.01, 95% CI: 0.97-1.04). Conclusions: The COVID-19 pandemic was associated with a reduction in medical and interventional therapies for HF and an increase in mortality for HF patients.

Clinical and prognostic implications of heart failure hospitalization in patients with advanced heart failure

BACKGROUND

Hospitalization is associated with poor outcomes in patients with heart failure, but its prognostic role in advanced heart failure is still unsettled. We evaluated the prognostic role of heart failure hospitalization in patients with advanced heart failure.

METHODS

The multicenter HELP-HF registry enrolled consecutive patients with heart failure and at least one high-risk 'I NEED HELP' marker. Characteristics and outcomes were compared between patients who were hospitalized for decompensated heart failure (inpatients) or not (outpatients) at the time of enrolment. The primary endpoint was the composite of all-cause mortality or first heart failure hospitalization.

RESULTS

Among the 1149 patients included [mean age 75.1 ± 11.5 years, 67.3% men, median left ventricular ejection fraction (LVEF) 35% (IQR 25-50%)], 777 (67.6%) were inpatients at the time of enrolment. As compared with outpatients, inpatients had lower LVEF, higher natriuretic peptides and a worse clinical profile. The 1-year rate of the primary endpoint was 50.9% in inpatients versus 36.8% in outpatients [crude hazard ratio 1.70, 95% confidence interval (CI) 1.39-2.07, P < 0.001]. At multivariable analysis, inpatient status was independently associated with a higher risk of the primary endpoint (adjusted hazard ratio 1.54, 95% CI 1.23-1.93, P < 0.001). Among inpatients, the independent predictors of the primary endpoint were older age, lower SBP, heart failure association criteria for advanced heart failure and glomerular filtration rate 30 ml/min/1.73 m2 or less.

CONCLUSION

Hospitalization for heart failure in patients with at least one high-risk 'I NEED HELP' marker is associated with an extremely poor prognosis supporting the need for specific interventions, such as mechanical circulatory support or heart transplantation.