Ketamine versus magnesium sulphate as an adjuvant to local anesthetics in the peribulbar block for posterior segment surgeries: a randomized controlled study.

Background: The use of an adjuvant to local anesthetics in the peribulbar block may improve block characteristics. The aim of this double-blinded, parallel-group, randomized, controlled trial was to evaluate the safety and efficacy of ketamine versus magnesium sulphate as adjuvants to the local anesthetic mixture of peribulbar block in patients scheduled for vitreoretinal surgeries.

Methods: A total of 126 patients scheduled for vitreoretinal surgery were randomly allocated as either ketamine (GK, N.

COVID-19 Pandemic in Hong Kong and Gaza Strip: Lessons Learned from Two Densely Populated Locations in the World.

The emergence of the coronavirus pandemic led to the implementation of several precautionary measures across the globe. For densely populated regions in the world, this may have been challenging given the proximity of people to one other. Thus, this brief report sought to compare the measures across 2 densely populated locations, Hong Kong and Gaza.