Hypertension: Difference between revisions
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===[[Hypertensive crisis]]=== | ===[[Hypertensive crisis]]=== | ||
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{{Familytree | | | A01 | | A01= '''[[Hypertensive crisis]]'''}} | {{Familytree | | | A01 | | A01= '''[[Hypertensive crisis]]''' <br> Acute elevation of blood pressure<br> - Systolic blood pressure >180 mm Hg, or <br> - Diastolic blood pressure >120 mm Hg}} | ||
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{{Familytree | B01 | | B02 | B01= '''[[Hypertensive emergency]]''' | B02= '''[[Hypertensive urgency]]'''}} | {{Familytree | B01 | | B02 | B01= '''[[Hypertensive emergency]]''' <br> | ||
Evidence of end organ damage | |||
| B02= '''[[Hypertensive urgency]]'''<br> | |||
No evidence of end organ damage }} | |||
{{Familytree/end}} | {{Familytree/end}} | ||
Revision as of 21:17, 30 April 2014
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Arterial blood pressure (BP) is a measure of the force exerted by the blood on the arterial walls. It is the function of both the cardiac output (CO) and the systemic vascular resistance (SVR). The maintenance of a normal blood pressure value is crucial to ensure appropriate blood circulation throughout the cardiovascular system. Arterial BP is considered one of the most important vital signs in the clinical setting.
Hypertension (HTN) is generally defined as an elevated systolic blood pressure (SBP) ≥ 140 mmHg and/or diastolic blood pressure (DBP) ≥ 90 mmHg.
Classification
Chronic hypertension
| Chronic hypertension | |||||||||||||||
| Primary hypertension (also known as essential hypertension) (95% of the cases) | Secondary hypertension (5% of the cases) | ||||||||||||||
Hypertensive crisis
| Hypertensive crisis Acute elevation of blood pressure - Systolic blood pressure >180 mm Hg, or - Diastolic blood pressure >120 mm Hg | |||||||||||||||
| Hypertensive emergency Evidence of end organ damage | Hypertensive urgency No evidence of end organ damage | ||||||||||||||