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Diving Medicine
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Diving Medicine
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Journal Article
Diving Medicine
2014
Overview
Abstract
Exposure to the undersea environment has unique effects on normal physiology and can result in unique disorders that require an understanding of the effects of pressure and inert gas supersaturation on organ function and knowledge of the appropriate therapies, which can include recompression in a hyperbaric chamber. The effects of Boyle’s law result in changes in volume of gas-containing spaces when exposed to the increased pressure underwater. These effects can cause middle ear and sinus injury and lung barotrauma due to lung overexpansion during ascent from depth. Disorders related to diving have unique presentations, and an understanding of the high-pressure environment is needed to properly diagnose and manage these disorders. Breathing compressed air underwater results in increased dissolved inert gas in tissues and organs. On ascent after a diving exposure, the dissolved gas can achieve a supersaturated state and can form gas bubbles in blood and tissues, with resulting tissue and organ damage. Decompression sickness can involve the musculoskeletal system, skin, inner ear, brain, and spinal cord, with characteristic signs and symptoms. Usual therapy is recompression in a hyperbaric chamber following well-established protocols. Many recreational diving candidates seek medical clearance for diving, and healthcare providers must be knowledgeable of the environmental exposure and its effects on physiologic function to properly assess individuals for fitness to dive. This review provides a basis for understanding the diving environment and its accompanying disorders and provides a basis for assessment of fitness for diving.
Publisher
Oxford University Press,American Thoracic Society
Subject
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
/ Barotrauma - physiopathology
/ Biological and medical sciences
/ Blood
/ Decompression Sickness - diagnosis
/ Decompression Sickness - etiology
/ Decompression Sickness - physiopathology
/ Decompression Sickness - therapy
/ Gases
/ Humans
/ Inert Gas Narcosis - diagnosis
/ Inert Gas Narcosis - etiology
/ Lung Injury - physiopathology
/ Lungs
