Which clinical features of palpitations warrant concern for an underlying cardiac etiology?

Which clinical features of palpitations warrant concern for an underlying cardiac etiology?

• A. Palpitations that occur only during exercise in a healthy athlete
• B. Palpitations with no prior cardiovascular disease
• C. Palpitations that affect sleep or occur at work or in patients with cardiovascular disease
• D. Palpitations after meals

Answer: (C)

Red flags for a cardiac cause of palpitations show up when the symptoms disrupt sleep or occur in people with known cardiovascular disease or during exertion. If palpitations wake a patient at night or happen during work or activity in someone who has heart disease, that raises concern for a potentially serious arrhythmia or ischemia. The pretest probability is higher in these scenarios, so they warrant further evaluation (history for associated symptoms like dizziness, syncope, chest pain, or shortness of breath; physical exam; and appropriate testing such as ECG, possibly ambulatory monitoring). Palpitations that occur only during intense exercise in a healthy athlete are often benign and can reflect normal physiologic tachycardia or athletic conditioning. Palpitations reported with no cardiovascular history or occurring after meals are less specific for a cardiac problem and can be due to noncardiac factors or benign ectopy.

Red flags for a cardiac cause of palpitations show up when the symptoms disrupt sleep or occur in people with known cardiovascular disease or during exertion. If palpitations wake a patient at night or happen during work or activity in someone who has heart disease, that raises concern for a potentially serious arrhythmia or ischemia. The pretest probability is higher in these scenarios, so they warrant further evaluation (history for associated symptoms like dizziness, syncope, chest pain, or shortness of breath; physical exam; and appropriate testing such as ECG, possibly ambulatory monitoring).

Palpitations that occur only during intense exercise in a healthy athlete are often benign and can reflect normal physiologic tachycardia or athletic conditioning. Palpitations reported with no cardiovascular history or occurring after meals are less specific for a cardiac problem and can be due to noncardiac factors or benign ectopy.