Hypertension

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Revision as of 19:28, 22 October 2007 by imported>Robert Badgett (→‎Classification)
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Hypertension is a multisystem disease whose hallmark is the elevation of blood pressure.

Definition

Classification

Classification of blood pressure for adults
Blood pressure classification Initial blood pressure mm Hg Followup recommended
SBP DBP
Normal <120 and <80 Recheck in 2 years
Prehypertension 120-139 or 80-99 Recheck in 1 year
Stage 1 Hypertension 140-159 or 90-99 Confirm within 2 months
Stage 2 Hypertension >160 or >100 "Evaluate or refer to source of care within 1 month. For those with higher pressures (e.g., >180/110 mmHg), evaluate and treat immediately or within 1 week depending on clinical situation and complications."

Diagnosis

Treatment

Current clinical practice guidelines are based on The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC 7).[1]

Treatment goals

Per the JNC7 Guidelines:[1]

  • "Treating "most patients" SBP and DBP to targets that are <140/90 mmHg is associated with a decrease in cardiovascular complications.
  • In patients with hypertension and diabetes or renal disease, the BP goal is <130/80 mmHg.

Initial medication

Several randomized controlled trials have compared initial medications for hypertension.[2][3][4][5] For patients with Stage 2 Hypertension (SBP >160 or DBP>100 mmHg), start with two drugs.[1]

Systolic hypertension

For more information, see: Systolic hypertension.


Prognosis

References

  1. 1.0 1.1 1.2 Chobanian AV, Bakris GL, Black HR, et al (2003). "The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: the JNC 7 report". JAMA 289 (19): 2560-72. DOI:10.1001/jama.289.19.2560. PMID 12748199. Research Blogging. http://www.nhlbi.nih.gov/guidelines/hypertension/jnc7full.pdf
  2. ALLHAT Officers and Coordinators for the ALLHAT Collaborative Research Group. The Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (2002). "Major outcomes in high-risk hypertensive patients randomized to angiotensin-converting enzyme inhibitor or calcium channel blocker vs diuretic: The Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT)". JAMA 288 (23): 2981-97. PMID 12479763[e]
  3. Wing LM, Reid CM, Ryan P, et al (2003). "A comparison of outcomes with angiotensin-converting--enzyme inhibitors and diuretics for hypertension in the elderly". N. Engl. J. Med. 348 (7): 583-92. DOI:10.1056/NEJMoa021716. PMID 12584366. Research Blogging.
  4. Materson BJ, Reda DJ, Cushman WC, et al (1993). "Single-drug therapy for hypertension in men. A comparison of six antihypertensive agents with placebo. The Department of Veterans Affairs Cooperative Study Group on Antihypertensive Agents". N. Engl. J. Med. 328 (13): 914-21. PMID 8446138[e]
  5. Materson BJ, Reda DJ (1994). "Correction: single-drug therapy for hypertension in men". N. Engl. J. Med. 330 (23): 1689. PMID 8177286[e]