Accuracy of Age-Based Formula to Predict the Size and Depth of Cuffed Oral Preformed Endotracheal Tubes in Children Undergoing Tonsillectomy.

Objectives: To retrospectively investigate the reliability of the age-based formula, in predicting size and in predicting insertion depth of preformed endotracheal tubes in children and correlate these data with the body mass index.

Patients And Methods: Patients were classified into 4 groups according to their nutritional status: thinness, normal weight, overweight, and obesity; we then retrospectively compared the actual size of endotracheal tube and insertion depth to the predicting age-based formula and to the respective bend-to-tip distance of the used preformed tubes.

Results: Altogether, 300 patients were included.

Validity and reliability of quality of recovery-35 Thai version: a prospective questionnaire-based study.

Background: The quality of patients' recovery following surgery and anesthesia has been a matter of focus and concern over the past decade. The Quality of Recovery-40 (QoR-40) questionnaire was developed and validated for post-anesthesia patient evaluation. The QoR-40, however, is English-based and was tested and validated in Caucasian patients, a population that is culturally and behaviorally different from the Thai population.