fig16
![Intraprocedural guidance in percutaneous mitral valve repair](https://image.oaes.cc/b4c52017-7568-4c85-b44c-85d6cb845e22/3753.fig.16.jpg)
Figure 16. Transseptal puncture. A: posteromedial commissural perspective: tenting (white arrow) must be located exactly above the posteromedial commissure; B: 3D lateral perspective of LA showing the TSS across the septum (with the dilator) inside the LA. TSS: transseptal steerable sheath; LA: left atrium