Health
Atrial Fibrillation: Causes, Diagnosis, and Treatment Methods

Atrial fibrillation or AF is a condition associated with irregular heartbeat or arrhythmia. It occurs due to a disturbance in the electric signals of your heart. It affects many people across the globe and underlying conditions are the main predisposing factors. Dr. Rishin Shah treats atrial fibrillation in Frisco using advanced procedures and techniques. Before seeking treatment, here is everything you need to know about atrial fibrillation.
Overview
Atrial fibrillation affects the top chambers of your heart, also known as the atria. There are some other types of arrhythmia known as ventricles that affect the lower chambers. However, these are more serious than atrial fibrillation.
The atria are the gateway to the heart and use electric signals to pump blood. The ventricles are the exits and where the blood passes for supply to the other body parts.
With Atrial fibrillation, the electric signals are disorganized, irregular, rapid, and affect your heart’s efficiency. Subsequently, your heart beats very fast, at approximately 150beats/second.
Failure to seek treatment can have devastating effects on your quality of life. However, with the right treatment, you can lead an active life.
Complications of atrial fibrillation
Lack of treatment for atrial fibrillation can increase your risk of developing a heart attack or stroke. Your risk increases threefold due to the rapid and chaotic contraction of the atria. Instead of your heart beating normally, the atrial becomes agitated and fails to circulate blood normally.
Blood collects in the small tissues surrounding the heart and clots can form from the stagnant blood. Eventually, the clot finds its way to the brain, interrupts blood circulation, and causes a stroke.
The risk of atrial fibrillation occurs more as you grow old, people above 40 years are likely to suffer from this condition. Also, if there is a history of high blood pressure, heart attacks, and diabetes, then there is an increased risk of developing this condition.
Studies reveal that the administration of blood thinners can significantly reduce the risk of atrial fibrillation.
Atrial fibrillation can increase the risk of heart failure where the heart fails to circulate blood to the body as it should. With time the heart weakens and eventually fails to function.
Causes of atrial fibrillation
The main risk factor is arterial hypertension, heart failure, and coronary artery disease that causes a heart attack. Also, coronary bypass surgery complications can cause this condition. Others are cardiomyopathy, pericarditis, or the inflammation of the heart and damage to heart valves.
You can also get this condition through hyperthyroidism or an overactive thyroid gland, and pulmonary embolism. Some factors such as alcohol consumption, unhealthy weight, and sleep apnea are easy to manage.
Diagnostic and treatment
Your doctor examines your medical history and the risk factors before recommending treatment. Treatment involves managing the risk factor, your specialist may apply some interventions to control the irregular heartbeat. Dr. Rishin Shah may prescribe medication to slow down the heart rate and perform a catheter ablation to prevent a recurrence.
People with atrial fibrillation lead a normal life with treatment and control. Contact Dr. Rishin Shah at Prime Heart and Vascular for assessment and treatment.
Health
The Scientist as Storyteller: How Steven Quay Makes Complex Medicine Relatable

Scientific discovery often struggles to reach the people it is meant to serve. The distance between research and public understanding can be vast. For most scientists, publishing in peer-reviewed journals is the endpoint. For Dr. Steven Quay, it is only the beginning. His career has been defined not just by what he has discovered, but by how he communicates it.
Scientific trust today faces growing skepticism and misinformation spreads faster than facts, Quay has embraced a rare role. He is both a scientist and a storyteller. His ability to bridge the technical and the human is what makes his voice resonate across disciplines, institutions, and communities.
Writing as a Lens into the Human Side of Science
One of the clearest examples of Quay’s narrative instinct lies in his writing. He has authored three major books, each rooted in a different part of his life and expertise. Together, they show how a medical researcher can also be an accessible public thinker.
In Stay Safe: A Physician’s Guide to Survive Coronavirus, published June 5, 2020, during the first days of the pandemic, Quay offered plainspoken, evidence-based guidance on protecting oneself and one’s family. It was not framed as a political statement or a policy directive. It was personal and grounded in the daily realities people faced. He wrote it not just as a scientist, but as someone who wanted to help others navigate a frightening time with clarity and calm.
His second book, The Origin of the Virus, tackled a more complex and controversial subject: the question of how SARS-CoV-2 emerged. Rather than speculate, Quay walked readers through the scientific evidence with the kind of transparency that is often lacking in public discourse. The tone was methodical, never alarmist. What set the book apart was its balance, engaging to a lay reader, yet rigorous enough to be taken seriously by professionals.
Then there is A Ride Through Northville, a deeply personal departure from the world of virology and oncology. Here, Quay revisits his childhood in Michigan, capturing the streets, friendships, and quiet moments that shaped him long before he entered a lab. The structure of the book mimics the experience of riding a bike through town, evoking memory not as a chronology, but as a sensory journey. For a scientist whose career has involved high-stakes research and global debates, this book offers a rare window into the reflective, grounded person behind the work.
Speaking Clearly Without Speaking Down
Quay’s communication skill is not limited to the written word. He has also become a frequent guest on health-focused podcasts and a speaker at public science forums. His TEDx talk on breast cancer prevention is one of the most viewed videos on the subject, and for good reason. He does not rely on drama or abstract theory. Instead, he explains mammographic density, hormonal risk, and clinical trial design in a way that makes the science both comprehensible and actionable.
In interviews, Quay has a habit of slowing things down. He avoids jargon unless he defines it. He is comfortable saying, “We don’t know yet,” which, in the realm of public science, is a kind of honesty that builds trust. He often discusses Atossa Therapeutics’ trials in plain terms, describing how experimental drugs like (Z)-endoxifen might help certain patients respond better to treatment. He emphasizes that these are ongoing studies, not marketing pitches, which sets him apart from many biotech executives.
Educating the Public Without Oversimplifying
One of the challenges of public-facing science is resisting the urge to oversimplify. Many well-intentioned scientists flatten complexity to fit the constraints of social media or mainstream news. Quay does not follow that path. He explains mechanisms and hypotheses with nuance, trusting that readers and listeners are capable of understanding more than they are often given credit for.
His social media presence reflects the same philosophy. He shares articles and research updates, but rarely with alarm or bravado. When he comments on current medical debates, he tends to lead with evidence rather than opinion. That steady tone has earned him a following that spans across ideological and professional divides.
During the pandemic, this approach stood out. While others chased headlines, Quay focused on distilling evolving guidance into practical advice. He acknowledged the limits of current knowledge, updated his views as new data emerged, and emphasized science as an iterative process. His voice became one that many people turned to not for certainty, but for clarity.
A Scientist’s Responsibility Beyond the Lab
Quay has often said that science does not exist in isolation. It is part of society. That belief informs why he writes, speaks, and engages in public discourse as actively as he does. He sees the scientist’s role not just as a producer of knowledge, but as a custodian of its meaning.
He has testified before the U.S. Congress and advised the State Department, not as a politician but as a physician-scientist committed to accuracy. In each case, his contribution has been grounded in data but shaped by a recognition of the human implications of policy and research.
This is especially evident in his work on breast cancer. By advocating for better screening tools and more personalized treatments, Quay speaks not only to clinicians and investors but to women facing real fears about their health. He explains the science behind mammographic density and hormonal modulation not just with charts, but with stories about what those risks mean in someone’s life.
Storytelling as a Form of Service
What makes Quay’s communication style compelling is that it never feels performative. He is not branding himself or building a media empire. He is doing what he believes scientists should do: make their work useful.
In every form of his storytelling, from the deeply personal to the technically specific, there is a throughline of responsibility. He understands that science touches people’s lives in ways that go far beyond the lab. For him, that means speaking clearly, writing honestly, and never underestimating the audience.
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