Accuracy of a new body length-based formula for predicting tracheal tube size in Chinese children.

Background: Variations in body weight and length (height) in children in the same age group have increased. Traditional age-based formulas often fail to predict the correct endotracheal tube (ETT) size. In our previous study, we devised a new length-based formula as follows: ETT internal diameter (ID) (mm) = 2 + (body length in cm/30).

Profound hypoxemia during major abdominal surgery in a small infant with tetralogy of Fallot.

We report a protracted hypoxic event during Soave's endorectal pull-through for Hirschsprung's disease in a 2-month-old male infant with tetralogy of Fallot. After the bowel loops were delivered out of the abdominal cavity, profound hypoxemia occurred which persisted for about 120 min. The hypoxemia was completely resolved after the intestine was reduced back into the peritoneal cavity.

Epidural anesthesia does not increase the incidences of urinary retention and hesitancy in micturition after ambulatory hemorrhoidectomy.

Background: This randomized, prospective study was designed to evaluate the role of various anesthesias in postoperative urinary retention and hesitancy in micturition in patients receiving hemorrhoidectomy on ambulatory basis.

Methods: In a randomized order, 128 ambulatory patients, ASA physical status I or II, were divided into two groups to receive hemorrhoidectomy under epidural or local anesthesia. In all patients, the intraoperative intravenous fluid given was limited to 200 ml +/- 2 ml/kg/h of Ringer's lactate solution.