https://www.selleckchem.com/products/mi-773-sar405838.html PURPOSE Insight into the causes and outcomes of malpractice claims against surgeons will help inform practitioners and may support better patient care. The purpose of this study was to characterize national malpractice claims against oral and maxillofacial surgeons (OMSs). MATERIALS AND METHODS A comprehensive review of all claims against OMSs from 2000 to August 2018 in the National Practitioner Data Bank was performed. Primary outcomes were claims against OMSs, payment amount, claim duration, and percentage of anesthesia-related claims. Other variables of interest included demographic characteristics, nature of allegations, clinical outcome of injury, outcome of claim, and number of payments of $1 million or greater ("catastrophic payments"). Student t tests and Wilcoxon rank-sum test were performed, and P less then .05 was considered significant. RESULTS This was a retrospective cohort study of malpractice claims against OMSs. There were 2,643 claims against OMSs during the study period. The average age nt amounts for these were significantly higher than for other claims. Settlements were made more quickly and for significantly lower rewards compared with judgments. Claims against OMSs during the past 2 decades were most commonly associated with minor permanent injuries occurring in the outpatient setting. Occupational exposure to hyperbaric atmosphere occurs in workers who carry out their activity in environments where breathing air pressure is at least 10% higher than pressure at sea level, and operations can be divided in Dry or Wet activities. The increased air pressure implies the formation of reactive oxygen species (ROS) and reactive nitrogen species (RNS), consumption of antioxidants and reduction of antioxidant enzyme activity, causing lipid peroxidation, DNA and RNA damage. The present study was aimed to establish the relation between hyperbaric exposure and metabolic changes due to ROS unbalanc