â¢ Hypertension (particularly isolated systolic hypertension)
â¢ Sinus tachycardia
â¢ Premature atrial contractions
â¢ Paroxysmal atrial tachycardia
â¢ Atrial fibrillation
â¢ Conduction disturbances (varying degrees)
â¢ High output heart failure (with cardiomyopathy)
â¢ Low output failure (with underlying comprised left ventricular function)
â¢ Mitral valve prolapse
â¢ Ischemic heart disease with angina and coronary insufficiency
How is atrial fibrillation managed in hyperthyroidism?
Hyperthryroid patients with atrial fibrillation are at an increased risk for peripheral thromboembolism. Anticoagulation is recommended. These patients may be resistant to the usual dosage of digitalis. Beta blockers are frequently helpful.