Nursing care tries to provide appropriate and synchronized measures by obtaining the views of patients in such a way as to improve the quality of care and maintain patient safety. This study was conducted to determine the relationship between missed nursing care and satisfaction in patients with heart failure. This descriptive correlational study was conducted on 282 heart failure patients hospitalized in the CCU. The participants were included in the study by available sampling. The study tools included a demographic and clinical information questionnaire, missed nursing care based on the patient report (MISSCARE Survey-Patient), and patient satisfaction with nursing care (Patient Satisfaction Instrument). Data were analyzed using independent t-test, ANOVA, and Pearson's correlation coefficient in SPSS 23 software. The mean ± standard deviation of the total score of forgotten care from the patient's point of view was 60.43 ± 7.40. The mean ± standard deviation of the total patient satisfaction score was 56.21 ± 11.84. Pearson's correlation coefficient showed a significant and inverse correlation between patients' satisfaction scores and forgotten care scores (r = -0.555, p-value < 0.001). According to patients' reports, the level of missed nursing care was above average. The satisfaction level of patients was low in all dimensions. By reducing the amount of forgotten care, the satisfaction level of patients increases. Therefore, it is recommended to pay attention to the development and improvement of the quality of nursing care in the field of reducing forgotten care and increasing patient satisfaction.
