1 Anesthesiology, Perioperative Care and Pain Medicine, Complexo Hospitalario Universitario de A Coruña, A Coruña, Spain. Electronic address: david.lopez.lopez@sergas.es.
2 Anesthesiology, Perioperative Care and Pain Medicine, Complexo Hospitalario Universitario de A Coruña, A Coruña, Spain. Electronic address: maria.gestal.vazquez@sergas.es.
3 Anesthesiology, Perioperative Care and Pain Medicine, Complexo Hospitalario Universitario de A Coruña, A Coruña, Spain. Electronic address: pablo.rama.maceiras@sergas.es.
4 Anesthesiology, Perioperative Care and Pain Medicine, Complexo Hospitalario Universitario de A Coruña, A Coruña, Spain. Electronic address: almudena.gonzalez.pereira@sergas.es.
5 Anesthesiology, Perioperative Care and Pain Medicine, Complexo Hospitalario Universitario de A Coruña, A Coruña, Spain. Electronic address: pablo.casas.reza@sergas.es.