Aim: To evaluate the change in blood pressure and determinate phenomenon of acute hypertensive response in patients with cerebral hemorrhage in acute phase. Subjects and Methods: 48 patients were diagnosed a cerebrale haemorrhage with hypertension, mean age 64.9 +/- 12.7, blood pressure 180/105mmHg, not using antihypertensive drugs, in acute phase, are treated at the medical cardiovascular department of Hue Central Hospital. All patients was measured blood pressure at the entry, after 12 hours, after 36 hours and brought 24 hours ABPM on day 2 and day 7 after admission with the interval of evry 30 minutes for daytime and evry 60 minute at nightime. Result: Decreased blood pressure naturally without medication, blood pressure decreased after 12 hours 5/1.4 mmHg, after 24 hours of 15.3/3.9 mmHg and the largest decline after 36 hours decreased 25.4/11.3 mmHg compared to the admission. After 5 days admission blood pressure reduced naturally as measured by 24-hour ABPM respectively 6.814.0 mmHg; 7.6/5.2 mmHg and 6.7/4.2 mmHg for the daytime, nighttime and 24 hours. The proportion of patients with acute hypertensive response as measured by mercury sphygmomanometer was 35 percent (17/48) on ABPM was 23 percent (11/48). Conclusion: When a cerebral hemorrhage meet acute hypertension, then reduce spontaneously without treatment during the acute phase, the most obvious decrease after 36 hours.
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