Editing In-water recompression (section)

=== Contraindications ===
Symptoms of mild DCS have been described as being one or more of musculoskeletal pain, rash, subjective sensory change in a non-dermatomal distribution, and constitutional symptoms such as fatigue. Divers with only these symptoms could be adequately managed with surface oxygen, observation, and consultation with a diving physician. Exposing divers with stable mild symptoms to the risks of IWR might not be justified. In severe cases the diver may be so compromised that they could not safely endure the procedure. It may be difficult or impossible to reliably codify the decision process.<ref name="Doolette and Mitchell 2018" />

Some signs of decompression illness which suggest a risk of permanent injury are nevertheless considered contraindications for IWR. Hearing loss and vertigo displayed in isolation with no other symptoms of DCI can have been caused by inner ear barotrauma rather than DCI, and inner ear barotrauma is generally considered a contraindication for recompression. Even when caused by DCI, vertigo can make in-water treatment hazardous if accompanied by nausea and vomiting. A diver with a deteriorating level of consciousness or with a persisting reduced level of consciousness should also not be recompressed in-water nor should a diver who does not want to go back down, or with a history of oxygen toxicity in the preceding dives, altered level of consciousness, shock, respiratory distress, or any physical injury or incapacitation which may make the procedure unsafe.<ref name="Doolette and Mitchell 2018" /> Suspected or confirmed cases of [[arterial gas embolism]] (AGE) are generally not considered suitable for IWR due to the high probability of loss of consciousness.<ref name="Walker and Murphy-Lavoie" />