Is Release and Perfuse Technique Essential Along With Frozen Elephant Trunk Procedure? 
Saeid Hosseini, MD, FETCS*1, Mostafa Mousavizadeh, MD1, Yousef Rezaei, MD1, Mohamad Bashir, MD, MPH 2
1Heart Valve Diseases Research Center, Rajaie Cardiovascular Medical, and Research Center, Iran University of Medical Sciences, Tehran, Iran
2Health Education & Improvement Wales, Velindre University NHS Trust, Wales, UK
Running title : Commentary on Release and Perfuse Technique
1Heart Valve Disease Research Center, Rajaie Cardiovascular Medical, and Research Center, Iran University of Medical Sciences, Tehran, Iran
2Health Education & Improvement Wales, Velindre University NHS Trust, Wales, UK