Objectives: This study sought to identify the potential effect of Islamic-Spiritual care and how it is delivered in treating depression and improving the quality of life (QoL) of patients with heart disease. Methods: This systematic review is reported based on the Preferred Reporting Items for Systematic Reviews and Meta-Analysis. We searched using relevant keywords through PubMed, CINAHL, Scopus, Springer Link, and Academic Search Complete. Articles with an experimental or cohort design were included, without date restrictions. The quality of evidence was assessed using the Joanna Briggs Institute critical appraisal checklist, and data synthesis used thematic analysis. Results: The analysis included 6 of the 47 identified studies. All studies were conducted in Iran, and a small number had a low risk of bias. The intervention was given through an Islamic teaching strategy, indicating the potential to reduce depression and improve QoL. Moreover, the learning core consists of belief and surrender in God's providence, strengthened meaning and life's purposes, worship, and skills to overcome obstacles. Conclusions: The interventions had the potential to treat depression and improve the QoL. However, a further study considering the risks of bias and involving a larger patient population with other Muslim backgrounds is necessary.
Keywords: Islam; depression; heart disease; quality of life; spiritual care.