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Background and Aim Taking into account the wide variety of problems of patients with heart valve replacement, it stands to reason to educate them to solve their problems. Further, the information needs analysis can increase the effectiveness of educational programs. The present study was performed to determine the impact of a planned educational program on patients' informational needs after heart valve replacement.   Materials and MethodsIn this quasi-experimental single-group study done with a pre-test and post-test, 31 patients who had undergone valve replacement since 3 years ago participated through the availability manner. Demographic and informational needs analysis questionnaires were completed before the educational program was held. A planned educational program was devised on the basis of patients' informational needs and instructed through 5 successive sessions. One month after the intervention, informational needs were studied, and the difference between levels of informational needs before and after the intervention was analyzed statistically using SPSS software and descriptive statistical tests including mean and standard deviation as well as t-paired parametric and Wilcoxon, Mann Whitney, and Krushall-Wallis non-parametric tests.   ResultsThe results of the study showed that before the intervention 80.6% of patients had "high informational needs" in terms of awareness of the nature of the disease which decreased significantly to 35.5% after the intervention (P = 0.000). Also, 51.6% of patients had high informational needs regarding awareness of drugs, 74.2% regarding nutritional diet, 100% regarding activity, and 96.8% concerning complications which decreased to 25.8%, 58.1%, 93.5%, and 67.7% respectively. Wilcoxon test showed a significant difference in all domains except for the diet. Intervention's effects on both genders and different ages were compared in terms of different domains of informational needs, and the comparison indicated statistical significance in some domains .   ConclusionThe results indicate that performing an educational program on the basis of needs analysis decreases such patients’ levels of informational needs and, subsequently, the probability of their problems. Thus, nurses should perform needs analysis before starting an educational program and then design and carry out the program in an organized way.

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