Lifehacks

Can hyperthyroidism cause ventricular tachycardia?

Can hyperthyroidism cause ventricular tachycardia?

Effects of thyroid hormones on the ventricles Ventricular tachycardia and ventricular fibrillation are exceptional in those with thyrotoxicosis and usually occur only in those with marked heart failure or associated cardiac disease, typically because of ischemic heart disease (18).

Can hyperthyroidism cause ventricular fibrillation?

Although it is well known that thyrotoxicosis can cause sinus tachycardia, atrial fibrillation (Afib) and atrial flutter, ventricular fibrillation (VF) is extremely rare [2].

Can hyperthyroidism cause left ventricular hypertrophy?

Hyperthyroidism causes high cardiac output and left ventricular hypertrophy in the early stage and biventricular dilatation and congestive heart failure in the late stage. Atrial fibrillation and PAH also add to the increased morbidity of untreated hyperthyroidism.

Can hyperthyroidism cause heart valve problems?

Both pulmonary hypertension and atrioventricular valve regurgitation have been documented to occur with a surprisingly high prevalence. Several case reports have documented that hyperthyroidism may present as right heart failure and tricuspid regurgitation.

Does thyroid cause heart problems?

Thyroid hormone influences the force and speed of your heartbeat, your blood pressure, and your cholesterol level. As a result, a malfunctioning thyroid gland can cause problems that masquerade as heart disease or make existing heart disease worse. An estimated 6% of people in the United States have thyroid disease.

Does Graves disease cause fast heart rate?

Signs and symptoms of Graves’ disease include: Fast or irregular heart beat.

How is thyroid storm and ventricular tachycardia treated?

Ventricular tachycardia and fibrillation were noted on electrocardiographic monitoring and reverted to sinus rhythm after repeated defibrillation. She was treated as a case of thyroid storm. Although tachycardia and fever normalized after 2 days, she remained comatose and died.

How did thyroid storm lead to cardiac arrest?

On arrival, his spontaneous circulation had returned from a state of ventricular fibrillation and pulseless electrical activity. Following admission, hyperthyroidism led to a suspicion of thyroid storm, which was then diagnosed as a possible cause of the cardiac arrest.

Is there a link between thyroid storm and fibrillation?

A 34-year-old woman was brought to our emergency department because of sudden loss of consciousness. Ventricular tachycardia and fibrillation were noted on electrocardiographic monitoring and reverted to sinus rhythm after repeated defibrillation. She was treated as a case of thyroid storm.

Is there a connection between hyperthyroidism and atrial fibrillation?

Hyperthyroidism in the absence of coronary artery vasospasm is also proarrhythmic, although most commonly associated with supraventricular rhythm disturbance such as atrial fibrillation in 5-15% of cases [11] .

What kind of tachycardia is associated with hyperthyroidism?

Sinus tachycardia is a regular cardiac rhythm in which the heart beats faster than normal and results in an increase in cardiac output (1) . This is the type of tachycardia most commonly associated with hyperthyroidism. 3. Ventricular Tachycardia. This involves an arrhythmia that starts in the lower chambers of the heart.

Can a thyroid hormone replacement cause tachycardia?

Any type of thyroid hormone replacement can result in tachycardia if the dosage is too high. Pregnancy . Being pregnant will result in many physiologic changes, including an increased resting heart rate, cardiac output, and vascular volume (4).

When does ventricular tachycardia occur in heart failure?

Ventricular tachycardia and ventricular fibrillation are exceptional in those with thyrotoxicosis and usually occur only in those with marked heart failure or associated cardiac disease, typically because of ischemic heart disease ( 18 ).

Is it common to have ventricular arrhythmias in thyrotoxicosis?

In contrast to supraventricular arrhythmias, ventricular arrhythmias are uncommon in thyrotoxicosis and are found with a frequency similar to that in the normal population ( 16, 17 ). Furthermore, the prevalence of ventricular arrhythmias in thyrotoxic subjects remains unchanged during and after antithyroid therapy ( 16 ).