fig1

Figure 1. A: Intra-operative photograph of the tricuspid valve with closed leaflets; B: Intra-operative photograph of the tricuspid valve with visible papillary muscles. AL: Anterior leaflet; PL: Posterior leaflet; SL: Septal leaflet; CS: Coronary sinus; TT: Tendon of Todaro; APM: Anterior papillary muscle; PPM: Posterior papillary muscle; RA: Robot arm