Sunday, February 24, 2013

Can cause blood pressure what the intersection of _ and general knowledge raised medicine have

Can cause blood pressure what the intersection of _ and general knowledge raised medicine have
Because the doctor uses medicine no as to cause patient's blood pressure to rise and exceed the normal value, called and cured source hypertension, is also called " medicine hypertension " . This kind of hypertension is not very common on clinic, should notice, understand, cure source hypertension contribute to with primary various to continue person who send hypertension distinguished. As to the hypertension patient, especially, severe hypertension person, the clinician should avoid using some medicines, curative effect so as not to influence stepping down and presenting the crisis of hypertension. The precise mechanism of curing source hypertension and producing is not still very clear, mainly there are three major kinds of to cause medicines to cure source hypertension:
( 1) Oral contraceptive: Oral contraceptive is one of the important contraceptive of the women of child-bearing age, but some women can have blood pressure to rise after taking contraceptives from several months to several years, incidence following in 18%, park behind the medicine, most people's blood pressure can return to normal gradually, but there are 20% besides even stop taking contraceptives, blood pressure is not dropped to either normally. Think it is too high and relevant that blood pressure due to the contraceptives is raised with estrogen content at present. Because estrogen can increase the renin to secrete, make the angiotensin 2 density in the blood plasma rise, and angiotensin 2 can make the blood vessel shrink, promotes sodium to enter in cells, and can make the aldosterone secrete and increase, sodium water retention, cause blood pressure to rise. To the treatment of this kind of hypertension, mainly stop taking contraceptives, use other contraceptive instead.
( 2) Single amine oxidase inhibitor: The medicine including hydrazine antidepressants, excellent would rather lower and furazolidone,etc., it mainly resists single amine oxidase and other enzyme short of moneyly, is unfavorable to the catecholamine inside and outside cells to deactivate, namely has hindered Epinephrine and inactivation of noradrenaline, but make to shrink the function of blood vessel to strengthen. Clinical manifestation blood vessel beat, have a headache vigorously for have palpitation, all over and the intersection of complexion and flush, sweat and blood pressure rise, 1/3 of the patient necks are vomited strong and straight, sick, some even have crisis of hypertension, can present hemiplegia, go into a coma even die. The therapeutic key lies in preventing, namely needn't be excellent would rather lower. If step up and react seriously, should inject 5- 10 milligrams of phenol proper Lamine repeatedly, until the serious bad reaction disappears.
( 3) Other medicines: Mainly have four kinds. The medicine with function of mineralocorticoid, such as go oxygen corticosterone, licorice root,etc., it causes mechanism of hypertension to relate to water and sodium retention that mineralocorticoid produce. Only if steroids resists the inflammation medicine, for instance Indometacin,etc., because be able to make internal prostaglandin turn into reducing, thus make blood pressure rise. Damage the medicine of the viscera, such as phenaetin. The medicine causing the blood vessel to shrink directly, such as Ergota amine, physostigmine and relevant irons.
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