Abstract:
OBJECTIVES:To determine whether amrinone is bound to cardiopulmonary bypass circuits. When amrinone is administered to children during cardiopulmonary bypass, determine whether measured amrinone concentrations differ from those predicted based on a reported volume of distribution of 1.6 L/kg. DESIGN:In vitro study: Uptake of amrinone by cardiopulmonary bypass circuits was determined. Clinical study: Prospective, open label investigation. SETTING:University-affiliated tertiary children's hospital. PARTICIPANTS:Clinical study: 27 children participated, including 5 neonates and 9 infants. INTERVENTIONS:In vitro study: Waste blood was circulated within seven pediatric cardiopulmonary circuits. Amrinone was administered, and blood was serially assayed for amrinone levels. Clinical study: Amrinone (mean dose 4.9 mg/kg) was loaded during cardiopulmonary bypass and amrinone concentrations in pump blood were determined at termination of bypass. Amrinone measured by high-performance liquid chromatography. MEASUREMENTS AND MAIN RESULTS:Cardiopulmonary bypass circuit uptake reduced amrinone concentrations to 79% of predicted. After correcting for circuit uptake, serum amrinone levels in patients were significantly higher than predicted. The levels, expressed in the ratio of measured: predicted amrinone concentration, did not differ among neonates, infants, and children older than 1 year of age. CONCLUSIONS:When amrinone is administered to children during cardiopulmonary bypass, about 20% of the dose becomes bound to the circuit. Available drug is distributed within a smaller volume than predicted. This may be the consequence of the physiologic perturbations of hypothermic cardiopulmonary bypass.
journal_name
J Cardiothorac Vasc Anesthjournal_title
Journal of cardiothoracic and vascular anesthesiaauthors
Williams GD,Sorensen GK,Oakes R,Boggs DP,Mulroy JJ Jr,Lynn AMdoi
10.1016/s1053-0770(05)80321-0subject
Has Abstractpub_date
1995-06-01 00:00:00pages
278-82issue
3eissn
1053-0770issn
1532-8422pii
S1053-0770(05)80321-0journal_volume
9pub_type
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journal_title:Journal of cardiothoracic and vascular anesthesia
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doi:10.1016/1053-0770(91)90276-y
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abstract::Elective cardioversion is a short procedure performed under general anesthesia for the treatment of cardiac dysrhythmias. Selection of the anesthetic agent is important, because a short duration of action and hemodynamic stability are required. Forty-four patients scheduled for elective cardioversion in the coronary c...
journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1991-12-01 00:00:00
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journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2004-06-01 00:00:00
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更新日期:2002-04-01 00:00:00
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更新日期:2002-02-01 00:00:00
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更新日期:2020-12-13 00:00:00
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更新日期:2011-12-01 00:00:00
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更新日期:2004-10-01 00:00:00
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更新日期:2006-08-01 00:00:00
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journal_title:Journal of cardiothoracic and vascular anesthesia
pub_type: 杂志文章
doi:10.1016/1053-0770(94)90058-2
更新日期:1994-04-01 00:00:00
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journal_title:Journal of cardiothoracic and vascular anesthesia
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更新日期:2006-10-01 00:00:00
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更新日期:2018-06-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/s1053-0770(05)80095-3
更新日期:1995-08-01 00:00:00