This photo is used for illustrative purpose.
Exasperating for many, intense heat and humidity leads to dehydration and salt-loss (sodium and potassium) causing a series of health concerns.
People with underlying cardiac issues also face a host of health problems during this season. Beyond the escalated heat levels, some of the other contributing factors that might impact heart health include not having a salt-restricted diet, poor blood circulation, consumption of certain medications like sedatives or diuretics in combination with blood pressure medications, points out Dr Vivek Mahajan Consultant Interventional Cardiologist, Fortis Hospital.
For patients with high blood pressure, when temperature and humidity is extreme during the summer, it causes added blood flow to the skin; the heart is then required to beat at a faster rate.
This may cause the blood to circulate double the time per minute, Dr Mahajan informs.
"Intense heat and constant sweating lowers the fluid content in the body, resulting in dehydration causing a strain on the heart. This along with BP medications may result in a drastic fall in blood pressure. The low BP and fast heart rate are big risk factors for those who are predisposed to or have a history of cardiac issues."
Low sodium in blood results in nausea, vomiting, headache, confusion, drowsiness, fatigue, restlessness, irritability, muscle weakness, cramps and seizures, or coma in extreme cases. Low potassium levels due to less water consumption may lead to muscle aches, cramps, palpitations and disturbances in heart rhythm leading to death. So drinking optimum amount of water is crucial in summer.
Elderly patients have less water content in the body, so the impact of water and salt-loss are all the more prominent in elderly patients with high BP and heart failure. The risks of heart attacks increase in these individuals during the summers and are hence the most vulnerable group in need of care.
Dr Mahajan shares some summer-friendly tips for patients with cardiac issues:
Avoid vigorous physical activity in high heat (not even in balconies and terraces) – exercise indoors.
Avoid consumption of caffeine.
Wear light-coloured, lightweight clothing (preferably cotton).
Stay in a cool environment with air-conditioning or fans.
Monitor your BP regularly.
Consult your doctor if your BP is high or low.
Depending on symptoms sodium and potassium in blood should be checked regularly.
Medication dosages may need reductions in elderly patients with history of heart failure and BP.
Patients with history of heart failure consuming very low water and salt, may increase water intake by 250-500ml per day and salt intake should be tweaked after seeking your doctors' advice.
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