by E.K. ZSIGMOND, M.D. Department of Anesthesiology University of
Illinois Chicago U.S.A. It is, indeed, a distinct honor and privilege to
be invited by the authors to write a preface to this monumental
monograph, Regional Opioid Analgesia. Regional Opioid Analgesia is a
colossal undertaking by Drs. De Castro, Meynadier and Zenz shortly after
the introduction of this revolutionary approach to pain relief which
opened a new epoch in analgesiology. This is, indeed, the first
authentic and comprehensive textbook encompassing the current knowl-
edge on this novel approach to pain relief. We are indebted to the
authors for introducing the new opioids to regional analgesia with the
scientists, who de- veloped the potent short and ultrashort acting
opioids with high therapeutic indices, which many researchers dreamt
about but never before materialized. The side effect liabilities of
these new opioids are minute as compared to morphine and meperidine.
Regional Opioid Analgesia could not have been more authentically written
than by Drs. De Castro, Zenz and Meynadier, who have conducted daily
clinical investigations on all known opioids for regional analgesia as
well as for neurolept analgesia. Therein lies the great value of this
monograph: it is the most authentic work on this topic.