Interventional outcomes and technical success:
All patients underwent a successful transcatheter edge-to-edge mitral
valve repair using the MitraClip NTR/XTR Delivery System with a
reduction in MR of at least one grade or to an MR grade <
moderate-to-severe as previously described (15), (16), (17). To maintain
optimal procedural conditions and outcomes, all procedures were
performed under general anaesthesia with controlled haemodynamic
conditions such as systolic blood pressure in the range of 110-130 mmHg
and the heart rate between 60-80 bpm.
54% (n=95) of patients received one clip device, 43 % (n=75) of
patients were treated using two clip devices. Three clip devices were
implanted in 3% (n=5) of patients, without a significant difference in
the arithmetic mean of the number of clip devices used between the
groups; however, the one-clip approach was performed significantly more
often in group 1 (1.43±0.58 vs 1.41±0.7, p=0.9). There was no
significant difference in post-procedural residual MR between the groups
(MR< III: Group 1: 94.2% (n=145) vs Group 2: 86% (n=18),
p=0.3). No major periprocedural complications, such as pericardial
tamponade or vascular injury requiring additional surgical or
interventional therapy, occurred.