Abstract:
:The effects of epinephrine 1/200,000 as an adjuvant to epidural morphine were investigated in three healthy male volunteers, during 26-h observation sessions. Peak blood concentrations of morphine were 44 +/- 12.9 ng/ml after plain morphine and 13.7 +/- 6.7 ng/ml after epinephrine-morphine. Cutaneous hypalgesia was more intense, faster in onset, and longer in duration after epinephrine-morphine than after plain morphine, and analgesia to ice-water immersion of extremities lasted longer. Adverse side effects of pruritus, nausea, vomiting, and difficulty of micturition were also more intense after epinephrine-morphine, and respiratory sensitivity to CO2 was depressed more severely between 6 and 16 h. The results indicated that epinephrine 1/200,000 reduces vascular absorption of epidural morphine and intensifies all the manifestations of cord and brainstem uptake.
journal_name
Anesthesiologyjournal_title
Anesthesiologyauthors
Bromage PR,Camporesi EM,Durant PA,Nielsen CHdoi
10.1097/00000542-198303000-00010subject
Has Abstractpub_date
1983-03-01 00:00:00pages
257-62issue
3eissn
0003-3022issn
1528-1175journal_volume
58pub_type
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