Key result
Right ventricular papillary muscle approximation reduced tricuspid regurgitation to mild or less and significantly reduced the tethering effect in 7 patients with severe functional TR.
Why the study?
Does right ventricular papillary muscle approximation reduce tricuspid regurgitation and leaflet tethering in patients with severe functional TR?
Case Report (n=7)
Does right ventricular papillary muscle approximation reduce tricuspid regurgitation and leaflet tethering in patients with severe functional TR?
Right ventricular papillary muscle approximation may effectively reduce leaflet tethering and improve severe functional tricuspid regurgitation.
Hypothesis-generating for papillary muscle approximation in functional TR; larger prospective trials needed before clinical adoption.
Recurrent tricuspid regurgitation (TR) can occur after tricuspid annuloplasty if severe leaflet tethering persists. To reduce the tethering, we applied right ventricular papillary muscle approximation in 7 patients with severe functional TR associated with significant leaflet tethering. Postoperative echocardiogram revealed mild or less TR and a significant reduction in the tethering effect. In conclusion, this adjunctive technique can improve functional TR associated with leaflet tethering.
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Matsumiya et al. (2017) conducted a case report in Severe functional tricuspid regurgitation with significant leaflet tethering (n=7). Right ventricular papillary muscle approximation was evaluated on Tricuspid regurgitation severity and tethering effect on postoperative echocardiogram. Right ventricular papillary muscle approximation reduced tricuspid regurgitation to mild or less and significantly reduced the tethering effect in 7 patients with severe functional TR.
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