MedcalCV公司推出治疗心房纤颤的二极管激光

一种新型二极管激光系统，允许心血管外科医生创造准确而彻底的心脏组织消融来治疗心房纤颤。

最近在Baylor大学医学中心，三例慢性心房纤颤患者接受了AtriLaze外科消融手术。在进行二尖瓣修补或者置换手术以及冠状动脉旁路搭桥手术的同时，进行了这种消融手术。使用AtriLaze系统并不比标准切除修补Maze手术增加更多的时间。

Baylor大学医学中心心肺外科医生Barol L.Hamman报道说：“AriLaze系统是一种简单直观的工具，使得我能够进行快速精确的Cox-Maze III型切开手术。这套激光系统使用最佳激光波长把穿透较深的能量输送到心房组织，我发现在这种类型的患者之中十分有效。手术后2个月，患者都不再受到心房纤颤的困扰。

AtriLaze系统是MedcalCV公司的产品。该公司当前正在将该系统用于消融心脏组织临床应用的商品化操作，并着重于单机、微创（靠近胸部跳动的心脏）外科手术治疗心房纤颤。在2005年4月圣弗朗西斯科举行的美国胸外科学会年会上，MedcalCV展示了该系统的最新研发进展。

Diode Laser System Treats AF
 
A new diode laser system allows a cardiovascular surgeon to create exact and complete lines of cardiac tissue ablation to treat atrial fibrillation (AF).

The AtriLaze surgical ablation procedure was recently performed on three patients with chronic AF at Baylor University Medical Center (Dallas, TX, USA). The procedure was performed as a concomitant procedure with mitral valve repair or replacement and coronary artery bypass grafting. The use of the AtriLaze system added less time than the standard cut-and-sew Maze procedure.

“The AriLaze system is a simple, intuitive tool that allows me to make rapid, precise Cox-Maze III partition lines,” reported Dr. Baron L. Hamman, a cardiothoracic surgeon at Baylor University Medical Canter. “The laser system employs an optimal light wavelength to deliver deep penetrating energy to atrial tissue that I found to be effective in this series of patients. Two months after surgery, each of the patients showed freedom from atrial fibrillation.”

The AtriLaze system is the product of MedcalCV, Inc. (Minneapolis, MN, USA). The company is currently marketing the system for clinical use in ablating cardiac tissue and is focusing its resources on the stand-alone, minimally invasive (closed chest, beating heart) surgical treatment of AF. MedcalCV presented updates on the system’s development at the annual meeting of the American Association for Thoracic Surgery in April 2005, held in San Francisco (CA, USA).