The bitter heat of the South Dynasty Liang – Xiao Gang Six dragons are incessantly wasted, and three volcanoes rise from the hot sun. I am tired of sleeping on a few cases, and I am tired of sleeping on a bed. The sweat pours like a fuse, and the wind is like a soup. The effect of summer on blood pressure varies from person to person. Some patients with severe, advanced age, and hypertension with atherosclerotic lesions may have their blood pressure rise instead of fall during high temperatures, and even have cardiovascular events. For healthy people, blood pressure fluctuations within a certain range are normal and have no adverse effects on health. However, for hypertensive patients, the fluctuation of blood pressure caused by the change of seasons may be larger, which will significantly increase the difficulty of blood pressure control. It has also been found that summer is the season when hypertension worsens or complications occur more often. What are the precautions for blood pressure control in summer? 1, adhere to the blood pressure monitoring hypertensive patients in the summer can not relax the monitoring of blood pressure, if found that blood pressure changes, especially day and night changes or irregular fluctuations, can be further observed through 24-hour ambulatory blood pressure monitoring or increase the frequency of blood pressure measurement, and adjust the antihypertensive drugs accordingly. 2, pay attention to the adjustment of lifestyle The fluctuation of blood pressure in summer is mainly related to the rise of temperature. Therefore, it is important for hypertensive patients to arrange their lifestyles reasonably, ensure sleep, exercise in moderation, and avoid heat. When using air conditioning, the temperature difference between indoor and outdoor should not be too large to prevent too much temperature change and increase blood pressure variability. 3, do not arbitrarily adjust the medication program At the beginning of summer, although some patients will have a certain degree of blood pressure decline, but in most cases the reduction will not be too large, generally do not need to adjust the treatment plan, avoid patients to change the type and dose of antihypertensive drugs. 4, the use of diuretics need to be cautious in summer, such as excessive sweating, electrolyte loss, the application of diuretics to lower blood pressure at this time, may be prone to hypokalemia, the application of diuretics patients should pay attention. 5, choose long-acting, 24-hour smooth blood pressure control program Last but not least, blood pressure should be controlled smoothly for 24 hours while reaching the standard, especially in the season or period when blood pressure is prone to fluctuations, it is advisable to choose long-acting, 24-hour smooth blood pressure control program for antihypertensive drugs. Long-acting dihydropyridine calcium antagonists, such as nifedipine controlled-release tablets, lower blood pressure by relaxing vascular smooth muscle and reducing peripheral vascular resistance. The trough-to-peak ratio (T/P) is a gold standard for measuring the smoothness of antihypertensive drugs. The U.S. Food and Drug Administration (FDA) recommends an important index for evaluating the smoothness of long-acting antihypertensive drugs, requiring that the trough-to-peak ratio of long-acting antihypertensive drugs for effective blood pressure control within 24 hours be at least 50%. A study conducted by Italian researchers in 1994 on nifedipine controlled-release tablets showed that nifedipine controlled-release tablets were able to maintain smooth blood pressure control for 24 hours with a T/P of 109.3% for systolic blood pressure and 98.6% for diastolic blood pressure, both close to 1. The large multicenter INSIGHT study also confirmed that nifedipine controlled-release tablets were able to maintain smooth and continuous blood pressure control in high-risk hypertensive patients treated for 4 years. control of blood pressure, and no seasonal fluctuations in antihypertensive treatment were observed. In addition, the smoothing index (SI) is another important indicator of blood pressure variability; the higher the SI, the smoother the antihypertensive effect of the drug. One study showed that the smoothing index of nifedipine controlled-release tablets for lowering systolic and diastolic blood pressure was 3.74 and 3.77, respectively, suggesting that this drug can control circadian blood pressure levels very smoothly. A number of studies such as i-TECHO, ACTION and EARLY have further shown that patients treated with nifedipine controlled-release tablets have reduced 24-hour blood pressure variability and better morning peak blood pressure control, while helping to protect target organs and reduce cardiovascular events. In summary: Changes in blood pressure during the summer months tend to cause people to let their guard down and walk into some misconceptions about blood pressure management. It should be noted that even if blood pressure levels change, the dosage should not be reduced or the type of medication adjusted at will. One should choose medications for smooth 24-hour blood pressure control along with regular blood pressure monitoring to maximize patient benefit.