[Ultrasound dynamics of gastric content volumes after the ingestion of coconut water or a meat sandwich. A randomized controlled crossover study in healthy volunteers].

Background: Adequate preoperative fasting is critical in preventing pulmonary aspiration of gastric content. We proposed to study the sonographic gastric content dynamics after the ingestion of liquid or solid food in healthy volunteers and confront it with current guidelines for preoperative fasting times.

Methods: We performed a prospective, crossover, evaluator-blinded study involving 17 healthy volunteers of both sexes.

[Cardiac arrest after epidural anesthesia for a esthetic plastic surgery: a case report].

Cardiac arrest during neuraxial anesthesia is a serious adverse event, which may lead to significant neurological damage and death if not treated promptly. The associated mechanisms are neglected respiratory failure, extensive sympathetic block, local anaesthetic toxicity, total spinal block, in addition to the growing awareness of the vagal predominance as a predisposing factor. In the case reported, the patient was 25 years old, ASA I, scheduled for aesthetic lipoplasty.