This document provides guidelines for treating heart failure cases using the 2016 ESC Guidelines. It defines heart failure and discusses diagnostic algorithms. It presents 4 clinical case scenarios to illustrate how to apply guideline recommendations in primary care patients presenting with heart failure symptoms. For each case, it analyzes diagnostic tests, identifies treatments, and describes how to initiate and titrate medications like ACE inhibitors and beta-blockers. The document also covers topics like imaging tests, classifications of heart failure, treatment objectives, and algorithms for managing reduced ejection fraction.