Regional anesthesia and pain medicine
-
Reg Anesth Pain Med · Jul 2020
Comment ReviewChronic pain and psychedelics: a review and proposed mechanism of action.
The development of chronic pain is a complex mechanism that is still not fully understood. Multiple somatic and visceral afferent pain signals, when experienced over time, cause a strengthening of certain neural circuitry through peripheral and central sensitization, resulting in the physical and emotional perceptual chronic pain experience. The mind-altering qualities of psychedelics have been attributed, through serotonin 2A (5-HT2A) receptor agonism, to 'reset' areas of functional connectivity (FC) in the brain that play prominent roles in many central neuropathic states. ⋯ While the mechanisms by which the classic psychedelics may provide analgesia are not clear, several possibilities exist given the similarity between 5-HT2A activation pathways of psychedelics and the nociceptive modulation pathways in humans. Additionally, the alterations in FC seen with psychedelic use suggest a way that these agents could help reverse the changes in neural connections seen in chronic pain states. Given the current state of the opioid epidemic and limited efficacy of non-opioid analgesics, it is time to consider further research on psychedelics as analgesics in order to improve the lives of patients with chronic pain conditions.
-
Reg Anesth Pain Med · Jul 2020
ReviewReconfiguring the scope and practice of regional anesthesia in a pandemic: the COVID-19 perspective.
The COVID-19 outbreak is on the world. While many countries have imposed general lockdown, emergency services are continuing. Healthcare professionals have been infected with the virulent severe acute respiratory syndrome coronavirus-2 (SARS), which spreads by close contact and aerosols. ⋯ The perioperative anesthetic implications of multisystem manifestations of COVID-19, anesthetic management options, the scope of RA and considerations for its safe conduct in operating rooms is described. An outline for safe and rapid training of healthcare personnel, with an Entrustable Professional Activity framework for ascertaining the practice readiness among trained residents for RA in COVID-19, is suggested. These are the authors' experiences gained from the current pandemic and similar SARS, Middle East Respiratory Syndrome and influenza outbreaks in recent past faced by our authors in Singapore, India, Hong Kong and Canada.
-
Reg Anesth Pain Med · Jul 2020
Case ReportsNovel use of a continuous PECS II block for mastitis pain treatment.
Nipple trauma and mastitis (an inflammatory condition of the breast) are common causes of intense pain during breast feeding. Although such pain normally results in early weaning, which has negative impacts on both maternal and child health, little is understood about the treatment of pain experienced during breast feeding. Here, we describe our experience with a woman who presented at 26 days post partum with a 15-day history of deep nipple wounds that caused bilateral mastitis and excruciating pain that radiated dorsally. ⋯ We performed a bilateral pectoralis nerve block type II and inserted intrafascial catheters between the pectoralis minor and serratus muscles for continuous analgesia. Following block completion, the pain in her torso resolved immediately. The local anesthetic infusion continued for 40 hours and the patient had sustained analgesia with rapid healing of nipple lesions and her breast feeding commencing at 36 hours after block placement.
-
Survey research, indispensable for assessing subjective outcomes in anesthesiology, can nonetheless be challenging to undertake and interpret. ⋯ Survey research is not uncommon in anesthesiology, frequently employs novel survey instruments, and demonstrates mixed results in terms of transparency and interpretability. We provide readers with a practical framework for critical interpretation of survey-derived outcomes.