Harsh winter this year leads to cardiac case spurt
Times of India | 21 January 2026
Kolkata: The sharp drop in mercury led to a spurt in cardiac diseases, with several hospitals reporting a rise in patients seeking treatment at the emergency department and then getting admitted. Many suffered heart attacks triggered by blockages, which, though common in winter, the sustained mercury slide this time increased the risk, said doctors. They pointed out that cold temperature is known to increase cardiovascular strain by causing blood vessel constriction and fluctuations in blood pressure.
BM Birla Heart Hospital received a steady stream of patients, with many being admitted. Winter places added strain on the heart, particularly in people with existing cardiac conditions or risk factors such as high blood pressure, diabetes or high cholesterol, said Anjan Siotia, director of cardiology, BM Birla. "Winter is associated with higher rates of infections, reduced physical activity, and dehydration, all of which can increase the risk of heart attacks, arrhythmias, and heart failure. "
Cardiac ailments could continue to rise over the next few weeks, warned cardiologists. Charnock Hospital saw a 20% spurt in cardiac patients over the last week. "Low temperatures cause blood vessels to constrict, leading to increased blood pressure and added strain on the heart. Seasonal vasoconstriction, along with higher blood viscosity and reduced physical activity, can increase conditions like angina, heart attacks, and worsening of existing cardiac disease," said Charnock cardiologist Tapopbrata De.
Ayan Kar, consultant, interventional cardiology of Narayana RN Tagore Hospital said, "Lower activity levels and lifestyle changes during winter can further strain the heart. To prevent complications, maintain adequate hydration, stay physically active, avoid smoking, eat less oily and sugary food and restrict exposure to air pollution.
Manipal Hospital EM Bypass saw a 10% increase in acute heart attack cases this winter, with a corresponding 10%–20% rise in primary angioplasty procedures, which are emergency angioplasties performed during an ongoing heart attack. "Other than artery constriction, the body's stress response becomes more active as people feel cold, leading to a higher heart rate and blood pressure. Winter is particularly a high-risk period and highlights the importance of regular monitoring and early medical attention," said Dilip Kumar, director of cath lab and senior interventional cardiologist, Manipal.
BP Poddar Hospital had over 23 patients admitted with cardiovascular issues and stroke, with seven patients admitted in the last two days. "Our cardiac clinic and OPD also reported a spike in patients presenting arrhythmia and chest discomfort along with respiratory distress," said Supriyo Chakrabarty, group advisor, BP Poddar. "Narrowing of arteries in winter and reduced physical activity can worsen existing cardiac disease," said Abhijit Aich Bhaumik, consultant cardiologist at BP Poddar Hospital.