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He Increase in Celsius Grades causes The heart begins to pump more blood to the skin And this is ventilated by the effect of sweatwhat creates a Overexertion to the heartwhich must work approximately three more timesexplains the head of cardiology of the Nuestra Señora del Rosario University Hospital, Antonio Álvarez-Vieitez.
In addition, the expert adds that, “to persist the situation, or In the event that the individual has a weak heart, One originates heart failure with signs of fatigue“At the same time, The kidney, receiving less blood“makes its arteries contract and insufficient to purify the blood, what it does lose salts and liquids and lead to dehydration“
Heat blows and other problems of high temperatures
In this sense, Dr. Álvarez-Vieitez warns about the “usual” danger these summer days of suffering a heat stroke. Therefore, he explains that “if the person has a body temperature close to 40 degreesit is dissenic (has a drown) and dizzy and stops sweating, you have to urgently go to a medical center; although The first thing is to cool it with showers, Baths or cold cloths and hydrate it, give him to drink liquid if he tolerates it and, if not the case, administer sera to start working the kidney and raise the tension. Likewise, the patient must be put in a cool place, with air conditioning if possible. “
It also adds that the most sensitive people to suffer a heat blow are people over 70 and childrenwell They do not have active thermoregulation systems Like the rest. Also, he points out that “apart from the heat stroke, sometimes, with the increase in temperature, Hemodynamic angina can be produced for the overesting of the heart. “
Another of the heat problems is the Smoking for vasodilation of peripheral circulationwhat originates edema (Liquid retention) in the lower limbs. To fight them, the cardiologist recommends Not having a long time standing, or too long sitting. Specifically, he advises “Moderate exercise and try to have the legs high. If it remains for a long time, it is possible that hypotension, dizziness and losses of knowledge (syncope) may appear due to lack of brain irrigation. “
However, the doctor informs that “Heat is good for hypertensive Well, it is easier for them to control blood pressure with heat than when it does coldthen narrow the arteries and raise the tension. Of course, the hypertensive ones who take diuretics They must be careful with high temperatures, as it is easier to dehydrate. “
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