All patients were evaluated prior to receiving anesthesia. Assessments were normally preformed days before the procedure, but in emergency cases they were done just before the procedure. These assessments allowed us to classify the risks of anesthesia according to the ASA American Society of Anesthesiologists system.
Todos los pacientes tuvieron una valoración preanestesia días antes del procedimiento o previo al mismo en los casos de emergencia, la cual permitió clasificar el riesgo anestésico de acuerdo al ASA.