He gave history of palpitation off and on at rest, associated with chest pain and breathlessness in the last 2 years. There was no definite aggravating or relieving factor. [ijpmonline.org]

[…] mechanisms: Right-sided heart failure : decreased rRV output systemic circulation congestion clinical features of right-sided heart failure (backward failure with predominant systemic congestion) Clinical features Exertional dyspnea Angina pectoris Palpitations [amboss.com]

The most common presentation was shortness of breath (58%), followed by palpitation (17%). Diastolic dysfunction was noted in all patients, whereas systolic dysfunction was subclinical in four, mild to moderate in four, and severe in three patients. [cags.org.ae]

The symptoms include dyspnea, syncope, collapse, palpitations, and chest pain. They can be readily provoked by exercise. [uniprot.org]

Describe the idiopathic and nonidiopathic causes of DCM -Be able to clinically manage patients with DCM Case Study: You are a third year medical student asked to do a history and physical on a 30 year-old patient presenting with 3-month history of palpitations [gwumc.edu]

A sister of one of the first-degree relatives with high LVE and CPK cited had a CPK of 188 IU associated with first-degree atrioventricular block. [revespcardiol.org]

Stage I occurs in the second and third decades and is characterized by absence of symptoms, normal heart size, sinus bradycardia, and premature atrial contractions. Stage II is marked by first-degree AV block in the third and fourth decades. [gwumc.edu]