Malignant Hypertension Guidelines

Updated: Jan 13, 2017
  • Author: John D Bisognano, MD, PhD, FACP, FACC; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Guidelines

Guidelines Summary

The 2003 Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC-7) characterized hypertensive emergencies as severe blood pressure (BP) elevations (>180/120 mm Hg) associated with acute end-organ damage and characterized hypertensive urgency as severely elevated BP with no evidence of target organ damage.

Overly aggressive treatment of severe uncomplicated hypertensive urgency can lead to cumulative effects causing hypotension. According to the JNC-7 guidelines, early triage is required to determine which patients with acute hypertension are exhibiting symptoms of end-organ damage and require immediate intravenous parenteral antihypertensive therapy. [15]

JNC-7 further recommended that initial treatment goals should be to reduce the mean arterial  pressure by no more than 25% within minutes to 1 hour. If the patient is stable, BP should be reduced to 160/100-110 mm Hg within the next 2-6 hours. [4]

Several parenteral and oral agents are recommended to treat hypertensive emergencies, such as nitroprusside sodium, hydralazine, nicardipine, fenoldopam, nitroglycerin, and enalaprilat. Other agents that may be used include labetalol, esmolol, and phentolamine. Short-acting nifedipine should not be considered for the initial treatment of this condition, because of the risk of rapid, unpredictable hypotension and the possibility of precipitating ischemic events. Once the patient’s condition is stabilized, BP may be gradually reduced over the next 24-48 hours. [15]

The 2013 European Society of Hypertension (ESH)/European Society of Cardiology (ESC) guidelines provided similar recommendations. [16]

In 2013, the American College of Emergency Physicians (ACEP) released an update of its 2006 guidelines for hypertension in the emergency department (ED), which are focused on treating hypertensive urgency. The recommendations included the following [17] :

  • In ED patients with asymptomatic markedly elevated BP, routine screening for acute target-organ injury (eg, serum creatinine, urinalysis, electrocardiography [ECG]) is not required.
  • In select patient populations (eg, those with poor follow-up), screening for an elevated serum creatinine level may identify kidney injury that affects disposition (eg, hospital admission)
  • In patients with asymptomatic markedly elevated BP, routine ED medical intervention is not required
  • In select patient populations (eg, those with poor follow-up), emergency physicians may treat markedly elevated BP in the ED and/or initiate therapy for long-term control (consensus recommendation)
  • Patients with asymptomatic markedly elevated BP should be referred for outpatient follow-up (consensus recommendation)