Lionel Richie Undergoes Heart Procedure: What Is Atrial Fibrillation And Why Can It Cause Dizziness?

Lionel Richie is recovering after undergoing a heart procedure to treat atrial fibrillation (AFib), an irregular heart rhythm that can cause symptoms including dizziness, fatigue and breathlessness.
A representative for the 77-year-old singer told Entertainment Weekly that Richie underwent a 'common procedure' for AFib and that 'everything went perfectly'. He is reportedly doing well but will take some time off before returning to the stage.
The procedure followed two hospitalisations during Richie's current tour with Earth, Wind & Fire. He was admitted to hospital in June after becoming dizzy during a performance in St Paul, Minnesota, and later spent time in intensive care after his 29 August concert in St Louis, where he reportedly needed to sit down during the final part of the show.
So, what exactly is AFib, and how can it make someone feel dizzy?
What Is Atrial Fibrillation?
AFib is the most common type of irregular heart rhythm. It occurs when the heart's upper chambers, known as the atria, beat chaotically rather than contracting in a regular rhythm.
Normally, electrical signals coordinate the heart's chambers so blood can move efficiently through the heart and around the body. During AFib, the atria quiver or beat irregularly, disrupting that coordination. The result can be a rapid, uneven heartbeat and less efficient blood flow.
The condition is relatively common. More than 1.5 million people in the UK are estimated to have AFib, according to the British Heart Foundation. However, many people may have no noticeable symptoms and remain undiagnosed.
Why Can AFib Cause Dizziness?
Dizziness can occur because AFib affects how effectively the heart pumps blood.
When the heartbeat becomes fast and irregular, the lower chambers may receive varying amounts of blood from the atria. This can make the amount of blood pumped around the body unpredictable. During some episodes, the heart may not supply the brain with blood as efficiently as usual, potentially causing lightheadedness, weakness, or dizziness.
The problem may become more noticeable during physical activity, when the body needs more oxygen-rich blood. This could be particularly relevant during strenuous activities such as performing on stage, although there is no evidence that AFib was specifically responsible for Richie's episodes of dizziness.
Other common AFib symptoms include heart palpitations, shortness of breath, tiredness, and reduced exercise tolerance. Some people, however, experience no symptoms at all.
Why Is AFib Potentially Serious?
The irregular movement of blood through the atria can allow blood to pool and form clots. If a clot travels to the brain, it can cause a stroke.
The British Heart Foundation says people with AFib can be up to five times more likely to have a stroke when their risk is not effectively managed. In England, AFib contributes to around one in five strokes.
Treatment can include medicines to control heart rate or rhythm, blood-thinning medication to reduce stroke risk, cardioversion or procedures such as ablation. The appropriate treatment depends on factors including the type of AFib, symptoms and an individual's risk of complications.
For Richie, his representative said the procedure went well and that he is expected to return to performing after taking time to recover.