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Swimming in cold water may be an alternative to pain killers: study Swimming in cold water may be an alternative to pain killers: study

Swimming in cold water may be an alternative to pain killers: study

Feb 14, 2018

A short, sharp, cold water swim may offer an alternative to strong painkillers and physiotherapy to relieve severe persistent pain after surgery, a study published in the journal BMJ Case Reports claims.

Doctors carried out a surgical procedure (endoscopic thoracic sympathectomy) on a 28 year old man to curb his excessive facial flushing.
The surgery entailed cutting the triggering nerves inside his chest, according to the case study.
The procedure itself was successful, but 10 weeks later, the usual postoperative prescription of strong painkillers and staged physiotherapy had barely made a dent in the severity of his pain.
The man explained that exercise and movement just made the pain worse, preventing him from completing his rehabilitation and recovery.
The constant pain caused him a great deal of distress and wrecked his quality of life, the authors said.
Before his surgery, the young man had been a keen triathlete, and so had swum competitively in open water.
He thought that a cold water swim would, at the very least, provide some welcome distraction from the searing pain.
The man returned to the same coastal spot where the triathlon took place.
The only way to enter the water there is to plunge in from a rocky outcrop, he explained.
Competitors are forced to swim for around 60 seconds before being able to clamber safely back ashore.
To his surprise, the young man felt no pain while he was in the water, but nor has he felt any since, the authors report.
His preoperative quality of life has been fully restored and he has resumed his usual sporting activities without further recourse to any painkillers.
"Due to the nature of retrospective case reports, it is unclear, without further evidence, whether the exposure to forced cold water swimming is causally and specifically related to pain remission," said the authors, who caution that this is only one case report.
However, given the time frame and the absence of any alternative explanations other than pure chance, it seems as if the cold water plunge might have afforded some instant pain relief - at least in this case, they said.
How this might have happened is not clear, the authors said, adding there are some possible biological explanations.
The shock of the sudden cold water immersion might have induced a wave of sympathetic nervous system activity: the body's response to this has been linked to an altered state of consciousness.
This in turn might have altered pain perception, offering instant relief, they said.

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