The study aims to support patients immediately after percutaneous coronary intervention (PCI) by implementing a telemonitoring program. Eligible patients have coronary heart disease and undergo PCI. The intervention group receives remote monitoring and text-based follow-up, with established health goals and education on using the telemonitoring application, along with necessary devices. The control group gets standard care. Outcomes measured include blood pressure, LDL levels, patient satisfaction, revascularization, and mortality. The study findings will enhance patient care after PCI and contribute evidence for widespread telemonitoring implementation in healthcare systems, aiding medical therapy and lifestyle modifications.