Limitations
This study has several limitations, including that it is single center and retrospective. The design also entails a selection bias because the surgeon made the final decision about whether to proceed with the Bentall or Tirone procedure. Another limitation is the missing conversion rate to classical Bentall after a failed Tirone attempt.
Abbreviations
AVSRR: Aortic valve-sparing root replacement
BAV: Bicuspid aortic valve
CI: Confidence interval
TEE: Transesophageal echography
TTE: Transthoracic echography