title: Clevidipine effectively and rapidly controls blood pressure preoperatively in cardiac surgery patients: the results of the randomized, placebo-controlled efficacy study of clevidipine assessing its preoperative antihypertensive effect in cardiac surgery-1.
abstract: BACKGROUND
  Clevidipine is an ultrashort-acting, third-generation IV dihydropyridine calcium channel blocker that exerts rapid and titratable arterial blood pressure reduction, with fast termination of effect due to metabolism by blood and tissue esterases. As an arterial-selective vasodilator, clevidipine reduces peripheral vascular resistance directly, without dilating the venous capacitance bed. In this randomized, double-blind, placebo-controlled multicenter trial we evaluated the efficacy and tolerability of clevidipine in treating preoperative hypertension.
  
  
  METHODS
  One-hundred-fifty-two patients scheduled for cardiac surgery with current or recent hypertension were randomized to receive clevidipine or placebo preoperatively. One-hundred-five patients met postrandomization entrance criteria (systolic blood pressure [SBP] > or =160 mm Hg after inserting an arterial catheter) for reduction by > or =15% from baseline in SBP. The patients thus received infusions of clevidipine (0.4-8.0 microg x kg(-1) x min(-1)) or 20% lipid emulsion (placebo) for at least 30 min. Treatment failure was defined as failure to reduce SBP by > or =15% from baseline or discontinuance of drug for any reason.
  
  
  RESULTS
  Patients treated with clevidipine demonstrated a 92.5% rate of treatment success and a significantly lower rate of treatment failure (7.5%, 4 of 53) than patients receiving placebo (82.7%, 43 of 52; P < 0.0001). Clevidipine achieved target blood pressures (SBP reduced by > or =15%) at a median of 6.0 min (95% confidence interval 6-8 min). A modest increase in heart rate from baseline occurred during clevidipine administration. Adverse events for each treatment group were similar.
  
  
  CONCLUSIONS
  Clevidipine was effective in rapidly decreasing blood pressure preoperatively to targeted blood pressure levels and was well tolerated in patients scheduled for cardiac surgery.
authors: Cardiothoracic Anesthesiology and Critical Care, Emory University Hospital, Atlanta, Georgia 30322, USA. jerrold.levy@emoryhealthcare.org
authors: Jerrold H
authors: JH
authors: Levy
authors: Miguel Y
authors: MY
authors: Mancao
authors: Richard
authors: R
authors: Gitter
authors: Dean J
authors: DJ
authors: Kereiakes
authors: Alina M
authors: AM
authors: Grigore
authors: Solomon
authors: S
authors: Aronson
authors: Mark F
authors: MF
authors: Newman
mesh_terms: D000368:Aged; D000959:Antihypertensive Agents / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects*; D002121:Calcium Channel Blockers / Q000627:therapeutic use*; D006348:Cardiac Surgical Procedures; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care; D011725:Pyridines / Q000627:therapeutic use*; D016896:Treatment Outcome; D014665:Vasodilator Agents / Q000627:therapeutic use
chemical_list: D000959:Antihypertensive Agents; D002121:Calcium Channel Blockers; D011725:Pyridines; D014665:Vasodilator Agents; C118563:clevidipine