Conventional negative inotropic substances such as β-blockers, verapamil, propiram can reduce LVOT obstruction, relief symptoms, and may use anti-arrhythmic drugs to prevent SCD. Even if many patients take maxium dosage medicine, but still have symptoms. 治疗上传统的负性肌力药物如β阻滞剂、维拉帕米、丙吡胺等能减轻LVOT梗阻,缓解症状,可以加用抗心律失常药物以预防心脏性猝死,但许多患者服用最大剂量仍有症状。
Conclusion: The pattern of flow convergence in the LVOT is a major determinant for the velocity distribution in the AA. 结论:左室流出道内的血流会聚方式是决定主动脉瓣口血流速度空间分布的最重要因素。