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Antireflux valves in intravenous opioid analgesia: are they necessary?
Author(s) -
Turner G. A.,
Murphy D. F.
Publication year - 1991
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1991.tb09925.x
Subject(s) - pethidine , medicine , anesthesia , opioid , morphine , analgesic , receptor
Summary A study was conducted in patients receiving intravenous opioid analgesia to determine the incidence and degree of retrograde flow along the parallel gravity‐driven infusion line. From 1187 hours of observations retrograde flow was found in 2.5% of the total time. In 70% of these cases this was equivalent to less than 1 mg of pethidine and in 96% this was equivalent to less than 5 mg of pethidine. The need for routine use of antireflux valves during intravenous opioid analgesia is therefore questioned.