Minimally invasive mitral valve surgery (MIMVS), despite its challenges, is not a rare procedure. However, MIMVS via a right small thoracotomy must be performed using long-shafted surgical instruments and thoracotomy instruments specialized for minimally invasive cardiac surgeries. We have performed 12 cases of MIMVS via right small thoracotomy using the superior trans-septal approach and secured a surgical visual field that easily allows a finger to reach the mitral valve annulus without using special instruments for minimally invasive cardiac surgery. We named this technique the “drawer-case technique.” In conclusion, MIMVS via right thoracotomy using the superior trans-septal approach can be performed easily and safely, similar to mitral valve surgery performed via median sternotomy.
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