This systematic review, published in Healthcare (2017), examines the association between various leadership styles and healthcare quality measures. The study, based on Medline and EMBASE databases from 2004 to 2015, analyzed eighteen relevant articles. The review highlights the strong correlation between leadership styles, including transformational and transactional approaches, and quality of care, emphasizing leadership's crucial role in coordinating and integrating care for both patients and healthcare professionals. The research identifies key quality measures such as patient satisfaction, reduced adverse effects, and improved patient outcomes, underscoring the importance of effective leadership in establishing high-productivity, high-quality healthcare organizations. The review also discusses the characteristics of high-quality care (safe, effective, reliable, patient-centered, efficient, and equitable) and the impact of leadership on these elements. The study's findings suggest that leadership styles significantly influence patient outcomes and overall healthcare quality, thereby contributing to the ongoing discourse on evidence-based medicine and nursing.