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[Effect of colforsin daropate hydrochloride after cardiopulmonary bypass]
1Department of Anesthesiology, Nara Medical University, Kashihara 634-8522.
Insights
Colforsin daropate hydrochloride (CDH) demonstrated superior inotropic effects compared to milrinone post-cardiopulmonary bypass. This suggests CDH may reduce the need for additional catecholamine support in patients undergoing cardiac surgery.
Area of Science:
- Cardiology
- Pharmacology
- Critical Care Medicine
Background:
- Cardiopulmonary bypass (CPB) can lead to myocardial dysfunction.
- Inotropic agents are crucial for hemodynamic support after CPB.
- Milrinone is a commonly used phosphodiesterase-3 inhibitor for this purpose.
Purpose of the Study:
- To compare the efficacy of colforsin daropate hydrochloride (CDH) with milrinone in patients undergoing CPB.
- To evaluate the impact on hemodynamic parameters and the requirement for additional vasopressor support.
Main Methods:
- A comparative study involving patients receiving either CDH or milrinone during and after CPB.
- Hemodynamic measurements, including mean arterial pressure (mABP) and cardiac index (CI), were recorded at three time points.
- The use of concomitant catecholamines (dobutamine, norepinephrine) was monitored.
Main Results:
- The CDH group exhibited significantly higher mABP compared to the milrinone group.
- CDH use was associated with a significant reduction in the need for dobutamine and norepinephrine support.
- Hemodynamic stability was better maintained with CDH.
Conclusions:
- Colforsin daropate hydrochloride possesses a more potent inotropic effect than milrinone.
- CDH can effectively reduce the requirement for combined catecholamine therapy after CPB.
- CDH represents a promising alternative for hemodynamic management in the post-CPB setting.
Abstract:
We evaluated the effects of colforsin daropate hydrochloride (CDH) after cardiopulmonary bypass (CPB) in comparison with milrinone. CDH or milrinone were given during and after CPB combined with cathecholamines so as to maintain mean arterial pressure (mABP > 60 mmHg) and cardiac index (CI > 3.0 l.min-1.m-2). Hemodynamics measurement was done immediately after CPB (A 1), one hour after CPB (A 2) and after the chest closure (A 3). In CDH group, mABP was significantly higher compared with milrinone group. Also, CDH group showed a significant reduction in the cases of combined use of dobutamine (at A 2, A 3) and norepinephrine (at A 1, A 2) compared with milrinone group. In conclusion, colforsin daropate hydrochloride exerts more inotropic effect and could reduce the necessity of combined use of cathecholamine compared with milrinone.