Postoperative administration of landiolol hydrochloride for patients with supraventricular arrhythmia: the efficacy of sustained intravenous infusion at a low dose.
The purpose of this study was to investigate the efficacy of landiolol hydrochloride, a short-acting beta(1) blocker, by initiating its administration at a low dose (5 microg kg(-1) min(-1)) in patients with postoperative supraventricular arrhythmia. The efficacy of landiolol was evaluated in 38 patients who, after developing postoperative atrial flutter or fibrillation, with sinus tachycardia and two patients who had a history of paroxysmal atrial fibrillation with frequent atrial extrasystole. The heart rate and blood pressure before and 2 h after the administration of landiolol were compared. A return to the sinus rhythm from supraventricular arrhythmia was noted in 89%. The heart rate was reduced from 137+/-26 bpm (before landiolol administration) to 93+/-18 bpm (2 h after the start of the medication, P<0.01). As an agent to correct an arrhythmic condition, landiolol successfully raised the systolic blood pressure from 108+/-24 mmHg (before medication) to 120+/-19 mmHg (2 h after the medication was started, P<0.05). Continuous intravenous infusion of landiolol at a low dose was found to be effective for postoperative supraventricular arrhythmia.
Wariishi
Seiichiro
S
Department of Surgery II, Kochi University, Kohasu, Nankoku, Kochi, Japan. wari@kochi-u.ac.jp
Yamashita
Koichi
K
Nishimori
Hideaki
H
Fukutomi
Takashi
T
Yamamoto
Masaki
M
Radhakrishnan
Geethalakshmi
G
Sasaguri
Shiro
S
D058671:Adrenergic beta-1 Receptor Antagonists; D000319:Adrenergic beta-Antagonists / Q000008:administration & dosage*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000889:Anti-Arrhythmia Agents / Q000008:administration & dosage*; D001145:Arrhythmias, Cardiac / Q000188:drug therapy* / Q000209:etiology / Q000503:physiopathology; D001281:Atrial Fibrillation / Q000188:drug therapy / Q000209:etiology; D001282:Atrial Flutter / Q000188:drug therapy / Q000209:etiology; D018880:Atrial Premature Complexes / Q000188:drug therapy / Q000209:etiology; D001794:Blood Pressure / Q000187:drug effects; D004334:Drug Administration Schedule; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007262:Infusions, Intravenous; D008297:Male; D008875:Middle Aged; D009025:Morpholines / Q000008:administration & dosage*; D011182:Postoperative Care; D013514:Surgical Procedures, Operative / Q000009:adverse effects*; D013616:Tachycardia, Sinus / Q000188:drug therapy / Q000209:etiology; D013997:Time Factors; D016896:Treatment Outcome; D014508:Urea / Q000008:administration & dosage / Q000031:analogs & derivatives*
D058671:Adrenergic beta-1 Receptor Antagonists; D000319:Adrenergic beta-Antagonists; D000889:Anti-Arrhythmia Agents; D009025:Morpholines; C077049:landiolol; D014508:Urea