Flexible band versus rigid ring annuloplasty for functional tricuspid regurgitation
Abstract
Overview
We review and compare our experience
with tricuspid ring annuloplasty between
usage of the Cosgrove-Edwards flexible band
and the MC3 rigid ring for repair of functional
tricuspid regurgitation to determine the efficacy
and mid-term durability of tricuspid
annuloplasty. 117 patients with functional tricuspid
regurgitation undergoing open heart
surgery and tricuspid valve repair from May
2005 to December 2007 were reviewed. The
flexible bands were used in thirty five
patients before October 2006. Since then, the
rigid rings were used in the next consecutive
eighty two cases. Echocardiographic evaluation
of tricuspid regurgitation was performed
preoperatively and postoperatively in followup
schedule. The degree of tricuspid regurgitation
was reduced from 2.80±0.67 to
0.71±1.0 (regurgitation severity grade: 0 to 4)
in the patients with flexible bands at discharge It was from 2.68±0.70 to 0.22±0.60 in
the patients with rigid rings. At thirty six
months postoperative period, tricuspid regurgitation
grades in patients with flexible bands
and rigid rings were 0.80±0.95 and 0.36±0.77,
respectively. Freedom from recurrent tricuspid
regurgitation (grade 2 or 3) in patients
with flexible bands and rigid rings were 68.6%
and 87.8%, respectively. Recurrent tricuspid
regurgitation was significantly lower in the
patients with rigid rings. Although both flexible
band and rigid ring annuloplasty provide
low rate of recurrent tricuspid regurgitation,
rigid ring annuloplasty might be more effective
than flexible band annuloplasty for
decreasing functional tricuspid regurgitation
in immediate and mid-term postoperative
periods.
Keywords
Tricuspid valve, annuloplasty, valve heart valve.
Article Information
Correspondence
Hironori Izutani, Associate professor, Department of Cardiovascular & Thoracic Surgery, Ehime University Graduate School of Medicine 454 Shitsukawa, Toon, Ehime 791-0295, Japan. E-mail: izutani@m.ehime-u.ac.jp
Received
2010-08-05
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