<![CDATA[Acute Decompensated Heart Failure (ADHF) is a cardiovascular emergency commonly characterized by dyspnea, orthopnea, use of accessory muscles, and reduced oxygen saturation. These manifestations arise from increased left ventricular pressure and pulmonary congestion, which lead to an ineffective breathing pattern. This study aimed to evaluate the effectiveness of combining oxygen therapy using a nasal cannula and the Semi-Fowler position in improving the breathing pattern of patients with ADHF. A case study design was applied to three patients admitted to the ICCU of Kanjuruhan Hospital, Malang. The intervention consisted of administering oxygen at 4 L/min via nasal cannula along with positioning patients in Semi-Fowler at 30–45°, delivered consistently over three days. Respiratory parameters observed included dyspnea, orthopnea, use of accessory muscles, respiratory rate, and oxygen saturation. The results demonstrated significant improvement beginning on the second day, marked by reduced dyspnea and orthopnea, absence of accessory muscle use, decreased respiratory rate toward the normal range, and increased oxygen saturation above 94%. On the third day, all patients achieved optimal improvement across all respiratory indicators. The combined intervention effectively reduced respiratory workload, enhanced lung expansion, and optimized ventilation–perfusion mechanisms. These findings indicate that simple and non-invasive measures, such as oxygen therapy and Semi-Fowler positioning, can serve as an effective standard nursing strategy for managing ineffective breathing patterns in ADHF patients in intensive care settings.]]>
