Landiolol, an Ultra-Short-Acting β_1-Blocker, More Effectively Terminates Atrial Fibrillation Than Diltiazem After Open Heart Surgery : Prospective, Multicenter, Randomized, Open-Label Study (JL-KNIGHT Study)

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<b><i>Background:</i></b> Recent studies have suggested that esmolol is the first choice for rate control in patients with postoperative atrial fibrillation (AF) after coronary artery bypass surgery, but side-effects of esmolol such as hypotension are problematic. To overcome this problem, landiolol, an ultra-short-acting β<sub>1</sub>-blocker with a less negative inotropic effect than esmolol, has been developed. The aim of the present study was to investigate whether landiolol was effective for both rate control and conversion to normal sinus rhythm (NSR). <b><i>Methods and Results:</i></b> A prospective, randomized, open-label comparison between i.v. landiolol and diltiazem in patients with postoperative AF was undertaken between January 2008 and June 2009 in Japan. Of 335 patients included in the analysis, 71 patients went into AF. Among these 71 patients, conversion to NSR within 8h after onset of AF occurred in 19 of 35 patients (54.3%) in the landiolol group vs. 11 of 36 patients (30.6%) in the diltiazem group (P<0.05). The incidence of hypotension was lower in the landiolol group (4/35, 11.4%) compared with the diltiazem group (11/36, 30.6%; P<0.05). The incidence of bradycardia was also lower in the landiolol group (0%) compared with the diltiazem group (4/36, 11.1%; P<0.05). <b><i>Conclusions:</i></b> Landiolol is more effective and safer than diltiazem for patients with postoperative AF after open heart surgery. (<i>Circ J</i> 2012; <b>76:</b> 1097-1101)<br>

収録刊行物

  • Circulation journal : official journal of the Japanese Circulation Society

    Circulation journal : official journal of the Japanese Circulation Society 76(5), 1097-1101, 2012-04-25

    The Japanese Circulation Society

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各種コード

  • NII論文ID(NAID)
    10030132260
  • NII書誌ID(NCID)
    AA11591968
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13469843
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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