The QT Interval and Selection of Alpha-Blockers for Benign Prostatic Hyperplasia

Reviews in Urology

Richard G Trohman¹  Herbert Lepor¹  Norman E Lepor¹  Lawrence A Hill¹ 

[1] *Department of Urology, New York University School of Medicine, New York, NY

关键词: Drug-induced long QT syndrome;    Torsade de pointes;    Benign prostatic hyperplasia;    Alpha-blockers;   

DOI  :  

学科分类：基础医学

来源: MedReviews, LLC

【 摘 要 】

The QT interval is the electrocardiographic manifestation of ventricular depolarization and repolarization. Drug-induced long QT syndrome is characterized by acquired, corrected QT (QTc) interval prolongation that is associated with increased risk of torsade de pointes. Every physician must recognize if the drugs he or she prescribes prolongs the QTc interval, especially if the drug is prescribed for a chronic condition in older patients who are on polypharmacy. The evolution of alpha-blockers for the treatment of benign prostatic hyperplasia has allowed the development of drugs that are easier to administer and better tolerated. Because alpha-blockers generally have equivalent efficacy, this class of drugs is typically differentiated by safety and side effects. Studies suggest that alpha-blockers may vary in regard to their effect on the QT interval, and, therefore, on their predisposition to cause potentially life-threatening ventricular arrhythmias.

【 授权许可】

Unknown