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ABSTRACT
Context
Rapid opioid detoxification with opioid antagonist induction using
general anesthesia has emerged as an expensive, potentially dangerous, unproven
approach to treat opioid dependence.
Objective
To determine how anesthesia-assisted detoxification with rapid
antagonist induction for heroin dependence compared with 2 alternative
detoxification and antagonist induction methods.
Design, Setting, and Patients
A total of 106 treatment-seeking
heroin-dependent patients, aged 21 through 50 years, were randomly assigned to 1
of 3 inpatient withdrawal treatments over 72 hours followed by 12 weeks of
outpatient naltrexone maintenance with relapse prevention psychotherapy. This
randomized trial was conducted between 2000 and 2003 at Columbia University
Medical Center’s Clinical Research Center. Outpatient treatment occurred at the
Columbia University research service for substance use disorders. Patients were
included if they had an American Society of Anesthesiologists physical status of
I or II, were without major comorbid psychiatric illness, and were not dependent
on other drugs or alcohol.
Interventions
Anesthesia-assisted rapid opioid detoxification with naltrexone
induction, buprenorphine-assisted rapid opioid detoxification with naltrexone
induction, and clonidine-assisted opioid detoxification with delayed naltrexone
induction.
Main Outcome Measures
Withdrawal severity scores on objective and subjective
scales; proportions of patients receiving naltrexone, completing inpatient
detoxification, and retained in treatment; proportion of opioid-positive urine
specimens.
Results
Mean withdrawal severities were comparable across the 3 treatments.
Compared with clonidine-assisted detoxification, the anesthesia- and buprenorphine-assisted detoxification interventions had significantly greater
rates of naltrexone induction (94% anesthesia, 97% buprenorphine, and 21%
clonidine), but the groups did not differ in rates of completion of inpatient
detoxification. Treatment retention over 12 weeks was not significantly
different among groups with 7 of 35 (20%) retained in the anesthesia-assisted
group, 9 of 37 (24%) in the buprenorphine-assisted group, and 3 of 34 (9%) in
the clonidine-assisted group. Induction with 50 mg of naltrexone significantly
reduced the risk of dropping out (odds ratio, 0.28; 95% confidence interval,
0.15-0.51). There were no significant group differences in proportions of
opioid-positive urine specimens. The anesthesia procedure was associated with 3
potentially life-threatening adverse events.
Conclusion
These data do not support the use of general anesthesia for heroin
detoxification and rapid opioid antagonist induction.
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