Background: Coronary angioplasty is one of the most commonly performed procedures for the treatment of coronary artery disease. Although the procedure improves coronary blood flow, long-term outcomes depend largely on patients’ adherence to recommended lifestyle modifications. Lack of knowledge regarding dietary management, physical activity, medication adherence, smoking cessation, and stress reduction may increase the risk of recurrent cardiovascular events.

Aim: To assess the effectiveness of a Structured Teaching Programme (STP) on knowledge regarding lifestyle modifications after coronary angioplasty among patients and to determine the association between knowledge scores and selected socio-demographic variables.

Methods: A quantitative pre-experimental one-group pre-test post-test design was adopted. The study was conducted among 50 coronary angioplasty patients admitted to Capital Hospital, Bhubaneswar, Odisha. Participants were selected using purposive sampling. Data were collected using a socio-demographic questionnaire and a structured knowledge questionnaire consisting of 42 items. Following the pre-test, a Structured Teaching Programme was administered. Post-test assessment was conducted after seven days. Descriptive and inferential statistics were used for data analysis.

Results: The findings revealed a significant improvement in post-test knowledge scores compared to pre-test scores following the administration of the Structured Teaching Programme. The intervention effectively enhanced patients’ knowledge regarding diet, exercise, smoking cessation, stress management, medication adherence, and follow-up care after coronary angioplasty.