People with some autoimmune diseases, including multiple sclerosis (MS), had a higher chance of developing a common irregular heartbeat called atrial fibrillation (AF), especially women.
Researchers followed nearly half a million people for about 13 years to see who developed a common irregular heartbeat called atrial fibrillation (AF). They found that several autoimmune diseases—conditions where the immune system attacks the body—were linked to a higher chance of getting AF, including rheumatoid arthritis, lupus, Crohn's disease, ulcerative colitis, and systemic sclerosis. In the study, multiple sclerosis (MS) was one of the neurological autoimmune diseases tied to higher AF risk in women, meaning women with MS had a clearer link to AF. The idea is that long-term inflammation from autoimmune disease might change the heart’s wiring or tissue and make irregular rhythms more likely, like water slowly eroding a pipe then causing a leak. The study also showed that these links were often stronger in women than men, suggesting sex differences matter for risk.
People with MS and their caregivers should pay attention because MS may raise the chance of developing AF, which can cause symptoms like fluttering in the chest, dizziness, or tiredness and can lead to other problems if untreated. Think of inflammation like a slow burn that can affect both the brain and the heart; watching for heart symptoms is part of caring for overall health. Women with MS may need especially careful heart checks because the study found stronger links in women. Healthcare providers who treat MS should consider asking about heart symptoms and may recommend basic heart tests (like pulse checks or an ECG) if symptoms appear. Knowing this can help you catch possible heart rhythm problems earlier, allowing treatment or lifestyle steps to reduce risk and worry.
This study shows associations, which means it found links but cannot prove that an autoimmune disease causes AF. The people studied were mostly from the UK and had certain ages, so results might not be the same for every group or younger people. The study also could miss other factors that affect heart rhythm, so talk with your doctor before changing any treatment based on this study.
AI-generated summary — for informational purposes only, not medical advice
12/31/2026
Learn how certain gut bacteria can worsen MS symptoms and what this means for treatment and daily li
Read More5/1/2026
Study finds a brain‑seeking CD4 killer cell tied to MS and CMV exposure that may resist some treatme
Read More5/1/2026
Study shows after optic neuritis the ganglion cell layer (GCL) loses more tissue than the inner plex
Read More5/1/2026
Study finds CD29 marks blood B cells that can enter the brain and become antibody-producing cells in
Read More5/1/2026
Study finds specific spinal fluid proteins tied to early nerve damage in active MS, highlighting imm
Read More5/1/2026
Study finds early detection, lower spinal fluid virus, and PML‑IRIS relate to better 1‑year outcomes
Read MoreWhether you’ve recently been diagnosed with Multiple Sclerosis (MS) or are seeking to broaden your understanding of this complex, neurodegenerative disease, navigating the latest research can feel overwhelming. Studies published in respected medical journals like Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology often range from early-stage, exploratory work to advanced clinical trials. These evidence-based findings help shape new disease-modifying therapies, guide symptom management techniques, and deepen our knowledge of MS progression.
However, not all research is created equal. Some clinical research studies may have smaller sample sizes, evolving methodologies, or limitations that warrant careful interpretation. For a more comprehensive, accurate understanding, we recommend reviewing the original source material—accessible via the More Details section above—and consulting with healthcare professionals who specialize in MS care.
By presenting a wide range of MS-focused studies—spanning cutting-edge treatments, emerging therapies, and established best practices—we aim to empower patients, caregivers, and clinicians to stay informed and make well-informed decisions when managing Multiple Sclerosis.