A catheterization laboratory (Cath lab) is a place that has high-tech equipment that mainly allows the diagnosis and treatment of cardiovascular diseases, which represents 31% of all global deaths, according to the World Health Organization. (WHO, 2019) In an attempt to minimize process inefficiencies in Cath Lab, these organizations have been using quality improvement projects such as Six Sigma, Lean Six Sigma, Kaizen events (rapid improvement events), general quality improvement projects (plan-do-check-act) and others. However, there is a lack of publications synthesizing the literature available in this research field (quality improvement project). Therefore, this paper aim is to assess the published literature relating quality improvement projects in Cath labs in three dimensions: publication characteristics, author characteristics, and content characteristics. To achieve the purpose of this research, a systematic literature review (SLR) will be conducted to obtain the most relevant papers from three platforms: EBSCOhost, ProQuest, and Scopus.