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Updated: Jan 28, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Prospective Randomized Control Study on the Efficiency and Safety of a Novel Port-site Closure Device, the EZ-close
1Department of Urology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon-si, Gyeonggi-do, Republic of Korea.
Aim:
The efficiency and safety of EZ-close Port-Site Closure System were investigated in comparison with those of the Carter-Thomason CloseSure System (CT) device.
Methods:
This was a prospective randomized control study. The primary outcome was the time taken to complete the closure of the port site using either the EZ or CT. The suture time (mean±SD) for the EZ group was significantly less than that of the CT group (36.8±10.1 s for the EZ group vs. 48.9±21.5 s for the CT group, P=0.004). There was no need for additional instruments in the EZ group, but in 84.6% of the patients in the CT group, a grasper was required to hold the tie (P<0.05). There was no difference in the complication rates between the 2 groups.
Conclusions:
The EZ device showed an improved efficiency and similar safety compared with that of the CT device. Its main advantage lied in enabling the surgeon to be totally self-sufficient for the whole port-site closing procedure.
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