It's Medical Monday!

Hello Aortic Hope family! Welcome to another amazing Medical Monday! Today we are going to explore a simple yet incredibly effective tool that doctors use to treat patients with Atrial fibrillation known as a CHA₂DS₂-VASc score. I know, I know, the name sounds like a weird mix of algebraic variables and confusing medical acronyms, but this test is much easier to understand than you think!

What is Atrial Fibrillation?

Credit: The Mayo Clinic

To start off, let’s clarify what Atrial fibrillation (Afib) even means. As we know, the heart has two upper chambers called the atria and two lower chambers called the ventricles. The heart also has a unique set of cells within its tissues that generate electrical impulses and set a steady heart rhythm. However, in atrial fibrillation, the electrical system does not work as it is supposed to,, leading to the atria pumping in a rapid, chaotic rhythm. This can lead to individuals feeling chest pain, shortness of breath, dizziness, and an irregular heartbeat. In addition, Afib can also lead to blood clots being formed that, when travelled to the brain, can cause strokes. This is where the CHA₂DS₂-VASc score comes into play!

What is the CHA₂DS₂-VASc score?

Credit: The AFIB Clinic

The CHA₂DS₂-VASc score is a test used by doctors to assess how likely an individual with Afib is to suffer from a stroke based on the stroke risk factors.

• C - Congestive heart failure (1 point)

• H - Hypertension/high blood pressure (1 point)

• A₂ - Age 75 or older (2 points)

• D - Diabetes (1 point)

• S₂ - Prior stroke/Transient Ischemic Attack (2 point)

• V - Vascular disease (1 point)

• A - Age 65-74 (1 point)

• Sc - Sex category (females get 1 point)

If you add up the points, you should get a number between 0 and 9 with a higher score indicating a greater risk for stroke and possibly a need for anticoagulants. Anticoagulants or blood-thinner medications are medicines that reduce or prevent blood-clot formation which can prevent strokes in patients with Afib. Generally, men with a score of 0 and women with a score of 1 have low risk for a stroke and do not need anticoagulants. Men with a score of 1 and women with a score of 2 have an intermediate risk for stroke and may be considered for anticoagulants based on individual risk factors. Men with a score of 2 or more and women with a score of 3 or more are at a moderate to high risk for strokes and anticoagulation medication is often recommended.

Final thoughts

Overall, CHA₂DS₂-VASc score is a crucial test that is an incredibly helpful test to determine stroke risk in patients with Afib and can lead to early intervention with anticoagulant medications. While it might be scary to think about using blood-thinner medications, it must be understood that these medications can have a profound effect in helping one lead a healthy, stroke-free life.

Thank you so much for joining me today and I hope that you have a beautiful rest of your week!

Think aorta,

Sathya Pallapothula