Are hormones linked to AFib, and do I need treatment?

Question

Hi doctor,

I am a 47-year-old female with occasional palpitations and recent ECG confirmed paroxysmal atrial fibrillation. My TSH is normal, but I am perimenopausal and often feel anxious.

Could hormones be triggering my AFib?
Are beta-blockers safe in women with low blood pressure?
I also fear the stroke risk. Do I need to be on blood thinners?

Please help. Thank you.

Answer 1

Hi,

Welcome to icliniq.com.

I have gone through your query and understand your concern.

The need for anticoagulation (blood thinners) is decided after assessing your risk of thromboembolic events and bleeding tendency, using validated scoring systems to balance the benefits and risks.

Your doctor likely used the CHA₂DS₂-VASc score (a point-based system used to assess a person's risk of stroke) to estimate stroke risk.

If the score is 2 or less, anticoagulation is usually not strongly recommended.
If the score is more than 2, anticoagulation is strongly advised.

The HAS-BLED score (a scoring system that helps assess the risk of major bleeding) helps evaluate bleeding risk. When this score is high, your physician will discuss the risks and precautions in detail. If the bleeding risk is low, anticoagulation is considered safe.

During the peri-menopausal period, hormonal changes increase the risk of cardiovascular diseases, but they do not directly cause or worsen atrial fibrillation (AF). Similarly, hormone replacement therapy (HRT) does not have a proven direct link to worsening AF.

Atrial fibrillation often develops due to secondary causes such as:

Hypertension.
Ischemic heart disease.
Structural heart abnormalities.
Electrolyte imbalances.

Hence, identifying and treating these underlying causes is crucial for proper management.

The main pillars of AF treatment include:

Heart rate control (using medications such as beta-blockers if blood pressure allows, safe when systolic BP > 90 mmHg or mean arterial pressure ≥ 65 mmHg).
Rhythm control (with anti-arrhythmic drugs or electrical cardioversion, a safe, sedated procedure that restores normal rhythm).
Anticoagulation, when indicated.
Management of underlying causes.
Interventional options, such as radiofrequency ablation by an electrophysiologist or a maze procedure by a cardiac surgeon, are both highly effective in suitable cases.

With proper evaluation, appropriate medication, and regular follow-up, atrial fibrillation can be effectively managed and complications prevented.

I hope this helps you. If you have any further questions, please feel free to ask.

Thank you.