<![CDATA[ST-Elevation Myocardial Infarction is a serious cardiovascular emergency commonly characterized by acute chest pain caused by impaired coronary blood flow and myocardial ischemia. This study aimed to analyze the effectiveness of deep breathing relaxation therapy in reducing acute pain among patients with ST-Elevation Myocardial Infarction in the Intensive Cardiac Care Unit of Sidoarjo Hospital. This research used a descriptive analytical design with a case study approach. Data were collected through interviews, observation, physical examination, and nursing documentation. The subject of this study was one patient diagnosed with ST-Elevation Myocardial Infarction who experienced acute left chest pain with an initial pain scale of 8. The nursing intervention provided was deep breathing relaxation therapy, which was performed when the patient experienced chest pain. The results showed that the patient’s pain scale decreased from 8 before the intervention to 3 after the intervention, indicating a substantial reduction in pain intensity. These findings suggest that deep breathing relaxation therapy can support pharmacological treatment by promoting relaxation, reducing muscle tension, and improving patient comfort. This study implies that deep breathing relaxation therapy may be used as a simple, safe, and low-cost non-pharmacological nursing intervention for acute pain management in patients with ST-Elevation Myocardial Infarction.]]>
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