A 76-year-old man was presented to the hospital with shortness of breath on exertion, which began six months ago, and gradually started to worsen. The patient was not able to perform any normal activities or climb more than one flight of stairs. He was able to walk on the ground; however, on the hilly regions, he used to develop dyspnea. Medical history: The patient had a history of hypertension.

However, hyperlipidemia, diabetes, tobacco abuse, or family history of early coronary artery disease was absent. The patient was not taking any medications for hypertension. Findings: Physical examination: Lungs were clear Jugular venous pressure was elevated at 12 cm above the right atrium Peripheral edema: 1+ Body mass index (BMI): 32 kg/m2 Electrocardiography: No significant abnormalities were observed Negative result for ischemia was found Normal sinus rhythms with normal intervals were…