Received: 20 January 2020
Accepted: 4 May 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: This study was approved by the institutional ethical committee of Hospital Universitario de Canarias. All patients signed the informed consent for surgery. The sequential assignment patients signed the study consent form. The ethical committee advised that the study consent was not necessary in the historical cohort.
: All patients signed the informed consent for surgery that includes consent for publication.
: The authors declare no competing interests.