30 minutes after drug administration patient's response was noted on visual analogue scale after cold test with ethyl chloride which showed that 93.3% had moderate pain while 6.7% had sever pain in ibuprofen group while in acetaminophen group 95.6% were having moderate pain and 4.4% with severe pain.
However Peterson et al.3,16 evaluated the sensitivity, specificity, positive predictive value and negative predictive value of cold (ethyl chloride), EPT and hot (warm gutta percha) test.
Babek recalls another party where he saw a teenage boy doing so much of ethyl chloride that he just sat there dazed, his eyes bloodshot and wild.
"We charged everyone Dh25 to get in and a further Dh20 if they wanted to indulge in some party treats." By party treats Rainn was referring to gasoline, butane and ethyl chloride. "The Meadows is another popular venue for underground teen parties," says Babek.
Gangs selling drugs target them on streets and parks to lure them into the path of addiction by providing them easy and cheap substances such as
ethyl chloride. It is being promoted among teenagers as a source that gives a feeling of ecstasy, happiness and fun."
Al Amiri noted that
ethyl chloride spray is medically used to prevent pain caused by injections and minor surgical procedures, provide temporary relief from minor sports injuries, and help relieve deep muscle pain when used with muscle spasm techniques.
Prior to this, the only practical inhalational agents available apart from nitrous oxide, ethylene and cyclopropane, (and a few others of short-lived popularity like acetylene) were non-halogenated ethers and some chlorinated compounds such as chloroform and
ethyl chloride.
Unfortunately three anaesthetic deaths from
ethyl chloride had occurred in Toronto at that time and, despite the successful demonstration, the Head of the Anaesthetic Department, Dr Samuel Johnston, refused to allow introduction of any new agent at his hospital.