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Use of olprinone, a phosphodiesterase III inhibitor, in an asthmatic patient

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Abstract:

Phosphodiesterase (PDE) III exists in airway smooth muscles. In addition, PDEIII inhibitors have been suggested to relax airway smooth muscle by increasing intracellular cAMP concentrations. We report a successful use of olprinone, a PDEIII inhibitor, for treatment of an asthmatic attack. A 15-year-old male patient treated with oral theophylline 400 mg· d−1 was anesthetized with propofol, fentanyl and ketamine for knee joint surgery. Immediately after tracheal intubation, an asthma attack occurred with peak airway pressure (Paw)>40 cmH2O. Thus, propofol 20 mg was additionally given to increase anesthetic depth, and Paw gradually decreased to 30 cmH2O. In addition, we started monitoring bronchial cross-sectional area using a superfine fiberoptic bronchoscopic method previously reported. However, as Paw did not further decrease for 30 min, olprinone was intravenously infused (10 μg · kg−1 · 10 min−1+0.3 μg · kg−1 · min−1, total 5 mg). Olprinone infusion rapidly decreased peak Paw from 30 cmH2O to 24 cmH2O and increased bronchial cross-sectional area by 50%. These findings suggest that olprinone produced bronchodilation.

Keywords: Olprinone; asthma; bronchodilation; phosphodiesterase III inhibitor

Document Type: Research Article

DOI: https://doi.org/10.1034/j.1399-6576.2001.045004510.x

Publication date: 2001-04-01

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