A major global awareness campaign has warned that millions of people may be living with undiagnosed heart rhythm disorders that can lead to stroke, heart failure or sudden cardiac death, often with little or no warning. The warning comes as World Heart Rhythm Week 2026 runs from 1–7 June, with charities and advocates urging people to recognize symptoms earlier and check their pulse more regularly. Source
Campaign calls attention to symptoms that are often overlooked
Arrhythmia Alliance, alongside the AF Association and STARS, is using the campaign to encourage patients, healthcare professionals and the wider public to take heart rhythm symptoms seriously. The organizations say public awareness remains dangerously low, even though arrhythmias are among the leading causes of sudden cardiac death worldwide and atrial fibrillation significantly raises the risk of AF-related stroke. Source
This year’s theme, “Your Heart, Your Rhythm, Your Story,” aims to place lived experience at the centre of the conversation. The campaign says symptoms can include palpitations, dizziness or blackouts, although for some people the first warning sign may be stroke or sudden cardiac arrest. Organizers say earlier recognition could improve diagnosis, treatment access and long-term outcomes. Source
Why fainting should not be dismissed
A central message of the campaign is that there is no such thing as a simple faint. Fainting and unexplained loss of consciousness can sometimes signal a serious underlying heart rhythm disorder, and without diagnosis and treatment these conditions can lead to sudden cardiac death. The campaign also highlights SVT Awareness Day on Wednesday, 3 June 2026, as part of its effort to improve recognition of supraventricular tachycardia. Source
Organizers say the push is not only about awareness but also about treatment, pointing to a growing range of options including catheter ablation, pulsed field ablation, leadless pacemakers, extravascular implantable cardioverter defibrillators, new therapies for supraventricular tachycardia and syncope management strategies. They argue that care should be personalized because each patient’s experience is different. Source
Arrhythmia Alliance founder and trustee Trudie Lobban said the week is about turning awareness into action, bringing patients and professionals together to improve understanding and save lives. The campaign’s message is clear: knowing the pulse, recognizing warning signs and seeking specialist help early could make a critical difference. Source
