The incidence of vomiting decreased during the short postoperative administration of supplemental oxygen 50%. However, perioperative oxygen 50% administration did not prevent PONV over the 24-h follow-up period in patients undergoing breast surgery performed under general anaesthesia.

The purpose of the study was to evaluate uterine ischaemia after uterine artery embolisation (UAE) using magnetic resonance imaging and the role of myometrial and fibroid ischaemia in the pathogenesis of post-procedural pain. T1-weighted gradient echo imaging before and after contrast agent was performed on 62 women before and 24 h after UAE. We assessed the severity (mild, moderate, severe) of myometrial ischaemia, and the percentage and volume of ischaemic tissue in myometrium and fibroids. The Verbal Rating Scale was used to assess in-hospital post-procedural pain (1-3 mild, 4-6 moderate, 7-10 severe). Mean maximal pain was 7.7. Myometrial ischaemia was mild, moderate and severe in 29, 23 and 10 patients, respectively. Moderate or severe myometrial ischaemia (p = 0.041), the percentage (p = 0.037) and volume (p = 0.012) of ischaemic tissue in the myometrium, and a large volume of embolic material (p = 0.038) correlated with severe pain. In summary, pain following UAE is common and partly explained by myometrial ischaemia.

In this study, supplemental 80% oxygen administration failed to decrease PONV in breast surgery.

Cochlear implantation under local anesthesia and sedation was found to be feasible. The modified suprameatal approach lends itself for procedures under local anesthesia, because only minimal drilling is required. The application of this technique provides a safe alternative especially for the elderly with significant comorbidity and increased risks for general anesthesia.