AHA/ACC Guidelines for the Diagnosis and Management of Patients With Thoracic Aortic Disease (2010)

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Commentary by Reed E. Pyeritz, MD, PhD

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Medical therapy

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Acute AoD: medical therapy – recommendations for initial management

 

  Class I   
  1. Initial management of thoracic aortic dissection should be directed at decreasing aortic wall stress by controlling heart rate and blood pressure as follows:
  2. In the absence of contraindications, intravenous beta blockade should be initiated and titrated to a target heart rate of 60 beats per minute or less. (LOE: C)
 
  1. If systolic blood pressures remain greater than 120 mm Hg after adequate heart rate control has been obtained, then angiotensin-converting enzyme inhibitors and/or other vasodilators should be administered intravenously to further reduce blood pressure that maintains adequate end-organ perfusion. (LOE: C)
  2. c. Beta blockers should be used cautiously in the setting of acute aortic regurgitation because they block the compensatory tachycardia. (LOE: C)
  Class III   
  1. Vasodilator therapy should not be initiated prior to rate control so as to avoid associated reflex tachycardia that may increase aortic wall stress, leading to propagation or expansion of a thoracic aortic dissection. (LOE: C)