Public health officials in São Paulo, Brazil, have issued a warning following a recorded rise in cardiac arrhythmias and sudden deaths across the state. According to data released by São Paulo’s State Health Secretariat, cases of arrhythmia requiring medical care rose by 14% between January and August 2025, compared with the same period in 2024.
Over the first eight months of 2024, the state registered 43,706 attendances for arrhythmia; by the same months in 2025, this figure had increased to 49,745. Sudden cardiac deaths also showed a concerning rise, growing from 1,394 to 1,487 between January and September – an increase of 6.6%.
Cardiologists Link Trend to Lifestyle and Delayed Care
Specialists in Brazil point out that arrhythmias — disturbances in the electrical activity governing heartbeat rhythm — may develop silently before triggering complications such as fainting, cardiac arrest or sudden death. The recent increase has encouraged authorities to highlight preventive strategies, particularly regular follow-up for individuals with cardiovascular risk factors.
Health officials note that modern lifestyle stresses, sedentary behaviours, alcohol consumption, smoking and poor diet are recognised contributors to cardiac disorders. Globally, cardiology societies note that arrhythmia prevalence tends to rise with ageing populations and limited access to continuous cardiovascular monitoring.
State Expands Care Capacity Amid Concern
In São Paulo, the rise in cases coincides with expanding specialist infrastructure, including the delivery of additional beds at the Dante Pazzanese Institute of Cardiology, one of Brazil’s leading heart care centres. Authorities say increasing treatment capacity is necessary to respond to growing demand but emphasise that prevention remains the most cost-effective strategy.
Health Secretariat Urges Public Vigilance
The State Secretariat for Health in Brazil is urging residents to adopt heart-healthy habits, seek evaluation when experiencing symptoms such as palpitations, dizziness or chest discomfort, and maintain periodic medical assessments. The office stressed that early detection and management of arrhythmias can significantly reduce severe outcomes and avoid avoidable fatalities.
Public health advisories in São Paulo also encourage a balanced diet, physical activity, blood pressure and cholesterol control, reduced alcohol intake and smoking cessation — measures aligned with international cardiovascular prevention guidelines.
As cases continue to rise, the warning serves as a reminder that heart rhythm disorders remain a major public health concern, requiring not only hospital capacity but greater community engagement in preventive care.