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There is a person who indicates a high value when measuring it in life usual like the home and the office, etc. though it is normal when taking one's blood pressure in the hospital and the clinic, etc.Such a case is actually called "Masked hypertension" from seeing in the measurement in the medical institution like putting on "Mask" of normal blood pressure though should called high blood pressure.
It tends to be overlooked to indicate a normal value, and arteriosclerosis and the hypertrophy of the heart progress when the doctor measures it though treatment is not done. Even if it is a health examination etc. and a normal blood pressure, I cannot necessarily be relieved before long because danger of causing the apoplexy and cardiac infarction rises.
Japanese Society of Hypertention is settling on "High blood pressure treatment guideline" that becomes the indicator of treatment. In the latest version (2009 versions), the following cases are assumed to be a masked hypertension.
(1)The mean value of the blood pressure measured several times in medical examination room is less than lowest highest blood pressure 140mmHg/blood pressure 90mmHg, and, in addition,
(2)Is the average of the value measured when freely acting with the value and the portable sphygmomanometer measured at home 135mmHg/85mmHg or more?
(3)When the average blood measured for 24 hours is 130mmHg/80mmHg or more
In a word, the case where (2) or (3) applies based on (1), too is a masked hypertension.
Morning hypertension that rapidly rises to eye [zamerukoro]
There are some types of masked hypertensions. Generally, when daytime acts, the blood pressure rises, and falls while sleeping. And, it is a type that is called, it is "Morning hypertension" that this way to go up is rapid though rises from sleep to eye [zamerukoro] again.
Autonomic is related to fluctuations in blood pressure. The sympathetic nerve that makes working of the heart active is dominant, and parasympathetic that suppresses working of the heart becomes dominant from nighttime to the morning in daytime. Everyone is from sleep The sympathetic nerve becomes dominant again and the body changes from the rest mode into the activity mode, and to shrinkage and the one that the blood pressure goes up in the blood vessel eye [zamerutokiha].
The blood vessel is damaged further to be rapid the Noboru yellowtail and it becomes easy to be able to have the thrombus that is congealing of blood. Therefore, it is assumed dangerous time zone to learn the apoplexy and cardiac infarction, etc. by experience easily in the morning, and is said that the morning hypertensions are higher than the cases assumed to be high blood pressure in medical examination room the risk.
The nocturnal hypertension and high blood pressure of the office are masked hypertensions.
Moreover, the type that the blood pressure rises at the continuation of the state in the state of high, and nighttime is said in the morning, "Nocturnal hypertension" as the blood pressure doesn't fall in the nighttime sleep. [Ibun] and ..length.. blood pressure rise, and the given load grows, too and danger of dying suddenly rises to the blood vessel and the heart at nighttime due to the apoplexy and cardiac infarction at time that high blood pressure continues.
In addition, the blood pressure such as holidays at early morning and nighttime calls the type to run one's blood pressure when it works in the office and when housework, of a child is taken care, and it is nursing though it is normal, etc. at home "High blood pressure of the office". There is a feature of abounding when it grows fat by the one that it is exposed to the stress in the office and the home and the blood pressure rises or there is a person with high blood pressure in the family.
The person who has the risk : the self management of the blood pressure.
These masked hypertensions are seen by about 30% of the hypertensive patient thought to have put down 10?15% and the treatment of the person to whom the blood pressure in medical examination room is said to be normal excellently in a normal value, and danger of causing the apoplexy and cardiac infarction is done just like the hypertensive patient when measuring it in medical examination room.
It is the following people that the risk of getting a masked hypertension is high.