Abstract Body (Do not enter title and authors here):
Background: Heart failure (HF) is a chronic condition with high morbidity and mortality rates, and is known to pose a significant burden on the healthcare system. Telemonitoring, an innovative approach using remote monitoring of patients' health data, has emerged as a potential solution to enhance HF management and improve patient outcomes.

Research Question: This systematic review investigates whether telemonitoring interventions improve heart failure outcomes compared to standard care.

Aim: We aim to synthesize the current evidence on the impact of telemonitoring on all-cause mortality, cardiovascular mortality, heart failure-related hospitalization, and health-related quality of life in patients with heart failure.

Methods: We conducted a thorough search of electronic databases, including PubMed, Cochrane Library, Google Scholar, and PLOS Medicine, to identify relevant randomized controlled trials (RCTs) and systematic reviews/meta-analyses (SRs/MAs) evaluating telemonitoring interventions in heart failure. Studies were selected based on pre-defined criteria. A review of the literature and risk of bias assessment was performed independently by four reviewers.

Results: Out of 16,778 articles reviewed, eight were chosen for this study, comprising 3 SRs/MAs and 5 RCTs. The findings suggest that using telemonitoring interventions, such as structured telephone support, mobile health interventions, and medication support, significantly reduces deaths and hospitalizations in heart failure patients compared to standard care. Longer telemonitoring duration (≥12 months) significantly lowered hospitalization rates.

Conclusions: This systematic review suggests that telemonitoring may be associated with improved heart failure outcomes, including reduced mortality and hospitalization rates. However, further research is needed to explore telemonitoring interventions' long-term effects and cost-effectiveness in heart failure management.