Chronic Pain

Closing the loop with optogenetics

An engineering example of closed-loop control is a simple thermostat used to maintain a steady temperature in the home. Without it, heating or air conditioning would run without reacting to changes in outside conditions, ...

Aug 28, 2015
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Geriatrician discusses treating trauma in the elderly

One morning five years ago in the parking lot of Rhode Island Hospital, Dr. Michael Ehrlich, chair of orthopaedics in the Alpert Medical School, flagged down Dr. Richard Besdine, a geriatrician and professor of medicine and ...

Aug 19, 2015
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Chronic pain is pain that has lasted for a long time. In medicine, the distinction between acute and chronic pain has traditionally been determined by an arbitrary interval of time since onset; the two most commonly used markers being 3 months and 6 months since onset, though some theorists and researchers have placed the transition from acute to chronic pain at 12 months. Others apply acute to pain that lasts less than 30 days, chronic to pain of more than six months duration, and subacute to pain that lasts from one to six months. A popular alternative definition of chronic pain, involving no arbitrarily fixed durations is "pain that extends beyond the expected period of healing."

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