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I am not so sure that anesthetic ether does not have something to do with being a triggering agent for PD. I conducted a rough survey on this idea about 2 years ago, and several people including myself saw symptoms rise after surgeries with general anesthetic. I think there is something else causing PD, but I would not be surprised if general anesthetic does help to exacerbate symptoms or somehow speed up the process. I had two shoulder operations while first showing signs of PD. But, after the second one, I could not write or shift my car stick shift even though my shoulder pain had subsided. The progression was immediate. Greg Leeman 40-30-28 -----Original Message----- From: Parkinson's Information Exchange Network [mailto:[log in to unmask]]On Behalf Of [log in to unmask] Sent: Saturday, April 21, 2001 10:19 PM To: [log in to unmask] Subject: Ether Interesting thought about inhalation of Ether for General Anesthesia as a risk factor or triggering agent for PD. While environmental exposure to some "toxin" is an attractive theory but I doubt that Ether inhalation could have been a problem. 1. Anesthetic Ether is a simple two carbon compound which is di-ethyl ether and is an extremely stable substance and unlikely to be a triggering agent. 2. Since the mid 50's, the use of Ether in the USA has almost completely disappeared, while the incidence of PD has not fallen to reflect a decrease in exposure to a triggering agent. If anything, as the use of Ether has declined, the incidence of PD has gone up and done so in an age group that has an increasing amount of exposure to Anesthetics than younger individuals. Ken Janis, MD Anesthesiologist ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn