Exposure of the skin to nitrous oxide, a liquified gas stored under pressure in a cylinder, can occur in anaesthesiologists and in those involved in recreational misuse of the gas. A case is reported of a man who presented to the emergency department after sniffing nitrous oxide and sustaining frostbite injury to his left cheek. Conservative management of this injury allowed spontaneous separation of the necrotic tissue and healing of the granulating wound by contraction.
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http://dx.doi.org/10.1016/0305-4179(95)00090-9 | DOI Listing |
JMIR Perioper Med
January 2025
Stanford Hospital, Stanford, CA, United States.
Background: Inhalational anesthetic agents are a major source of potent greenhouse gases in the medical sector, and reducing their emissions is a readily addressable goal. Nitrous oxide (NO) has a long environmental half-life relative to carbon dioxide combined with a low clinical potency, leading to relatively large amounts of NO being stored in cryogenic tanks and H cylinders for use, increasing the chance of pollution through leaks. Building on previous findings, Stanford Health Care's (SHC's) NO emissions were analyzed at 2 campuses and targeted for waste reduction as a precursor to system-wide reductions.
View Article and Find Full Text PDFJ Clin Neurol
January 2025
Department of Neurology, Ajou University Medical Center, Ajou University School of Medicine, Suwon, Korea.
ACS Nano
January 2025
Department of Chemistry, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada.
Reactive oxygen species (ROS) play fundamental roles in various biological and chemical processes in nature and industries, including cell signaling, disease development and aging, immune defenses, environmental remediation, pharmaceutical syntheses, metal corrosion, energy production, etc. As such, their detection is of paramount importance, but their accurate identification and quantification are technically challenging due to their transient nature with short lifetimes and low steady-state concentrations. As a highly sensitive and selective analytical technique, surface-enhanced Raman spectroscopy (SERS) is promising for detecting ROS in real-time, enabling in situ monitoring of ROS-involved electrochemical and biochemical events with exceptional resolution.
View Article and Find Full Text PDFInt J Environ Res Public Health
December 2024
School of Health and Human Performance, Dalhousie University, Halifax, NS B3H 4R2, Canada.
Canada, as one of the largest oil and gas producer in the world, is responsible for large emissions of methane, a powerful greenhouse gas. At low levels, methane is not a direct threat to human health; however, human health is affected by exposure to pollutants co-emitted with methane. The objectives of this research were to estimate and map pollutants emitted by the oil and gas industry, to assess the demographic of the population exposed to oil and gas activities, and to characterize the impact of well density on cardiovascular- and respiratory-related outcomes with a focus on Alberta.
View Article and Find Full Text PDFInt J Environ Res Public Health
November 2024
Institute of Marine and Environmental Technology, Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
Considerable attention has recently been given to the contribution of the greenhouse gas (GHG) emissions of the healthcare sector to climate change. GHGs used in medical practice are regularly released into the atmosphere and contribute to elevations in global temperatures that produce detrimental effects on the environment and human health. Consequently, a comprehensive assessment of their global warming potential over 100 years (GWP) characteristics, and clinical uses, many of which have evaded scrutiny from policy makers due to their medical necessity, is needed.
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