Rejected

Altitude chamber exposures are used for training to allow aircrew to experience their hypoxia and pressure effect symptoms. Decompression illness (DCI) can occur subsequent to altitude chamber training or in operational aircraft when the cabin altitude is at least 18,000 feet. Definitive emergent treatment is hyperbaric oxygen (HBO2) to decrease bubble size, dissipate excess nitrogen, hyperoxygenate tissue and reduce inflammation.

Tympanoplasty is performed to close the tympanic membrane perforation and recover the hearing level of patients with non-suppurative chronic otitis media. Endoscopic tympanoplasty has recently been increasingly preferred by ear nose and throat surgeons to treat tympanic membrane perforations.

Chronic postsurgical pain (CPSP) is a possible complication of various surgical procedures, which can impair patients' quality of life while also contributing to chronic opioid use. Multiple biopsychosocial factors put patients at risk for CPSP. Multimodal analgesia with the use of various pharmacologic and regional anesthetic techniques can help reduce the incidence and severity of CPSP. However, the relationship between various perioperative analgesic strategies and the development of CPSP is not fully understood. Although the use of multimodal analgesia will not automatically prevent CPSP and/or prolonged opioid consumption, there is potential to do so, especially by means of regional techniques.

This study examined the development and effect of an online hypnosis program for the treatment of migraines. Forty-three participants were randomly assigned to a wait-list control or a treatment group. The treatment group received hypnosis mp3s developed for the study. Pain catastrophizing (PCS), headache disability (HDI), migraine frequency, duration, severity, and medication usage were measured. There was a 48% reduction in mean HDI score in the treatment group and 2% reduction in the control group. There was a 60% reduction in mean PCS score in the treatment group. There were no significant between-group differences in the proportion of subjects experiencing decreased frequency or severity of migraines. There was a significant between-group difference in the change in migraine duration. This study demonstrated that a hypnosis intervention delivered online was effective in reducing headache symptoms in migraine sufferers.

Amyloid-β-related angiitis (ABRA), a subtype of cerebral amyloid angiopathy (CAA), is vasculitis occurring in relation to amyloid-β (Aβ) deposition in the walls of intracranial blood vessels. ABRA is presumed to be caused by some immune response to the deposited Aβ. An 81-year-old man on oral anticoagulant therapy complained of headache, nausea, and difficulty with standing after a head injury. Head computed tomography revealed subcortical bleeding in the right temporoparietal lobe, and 3 days after admission, magnetic resonance imaging (MRI) showed subarachnoid hemorrhage (SAH) around the hematoma. Cerebral microbleeds, a characteristic of CAA, were not detected on MRI. On worsening of his symptoms, intracranial brain biopsy and hematoma removal were performed. Intraoperative rapid diagnosis with a frozen section suspected vasculitis, which enabled the prompt initiation of steroid therapy. He was pathologically diagnosed with ABRA (granulomatous angiitis) using a formalin-fixed paraffin-embedded section. Vasculitis was prominent around blood vessels in the pia matter covering the cerebrum. In this case, the inflammatory cells seemed to appear via the subarachnoid space following cerebral hemorrhage and SAH. ABRA seemed to be developed by intracranial hemorrhage in this case.

Arthroscopic knee surgery is most commonly performed minimally invasive surgical procedure in orthopaedics. Postoperative pain relief is must for early mobilisation that reduces patient's morbidity and improves postoperative recovery.

Opioids and benzodiazepines have been the mainstay of neonatal analgesia and sedation. However, based on evidence in neonatal animals, these drugs may be deleterious for the developing brain. Dexmedetomidine (DEX), a central alpha-2 agonist, has sedative and analgesic effects and has been shown to be neuroprotective in animal models. Despite increasing use of DEX in newborns, there is a paucity of data regarding its safety and efficacy in this population.

By introducing the concept of "pain stickiness" underlying treatment-resistant pain, Borsook et al. take a neurobiological perspective to capture the factors that may contribute to the transition of pain from acute to chronic form. However, there is more to consider, including the interconnected influences of resilience, brain gray matter and connectivity, sex differences, and the role of the environment. There still remains the question of how to eliminate this stickiness.