PubMed Update October/November 2016

43 papers this round, and there are some goodies in here for sure (don't miss #38!). Given the number and varied issues addressed, I divided them up into topic areas and, given the number on naloxone, I divided up the naloxone topic areas as well.

Naloxone interventions

Primary care

1) Co-prescription of naloxone as a Universal Precautions model for patients on chronic opioid therapy-Observational study.

Takeda MY, Katzman JG, Dole E, Bennett MH, Alchbli A, Duhigg D, Yonas H.

Subst Abus. 2016 Apr 19:1-6. [Epub ahead of print]

Comment: A pilot of naloxone co-prescribing.

2) Attitudes Toward Naloxone Prescribing in Clinical Settings: A Qualitative Study of Patients Prescribed High Dose Opioids for Chronic Non-Cancer Pain.

Mueller SR, Koester S, Glanz JM, Gardner EM, Binswanger IA.

J Gen Intern Med. 2016 Oct 31. [Epub ahead of print]

Comment: Shows that naloxone for patients prescribed opioids must be appropriately framed.

3) Acceptability of Naloxone Co-Prescription Among Primary Care Providers Treating Patients on Long-Term Opioid Therapy for Pain.

Behar E, Rowe C, Santos GM, Coffa D, Turner C, Santos NC, Coffin PO.

J Gen Intern Med. 2016 Nov 4. [Epub ahead of print]

Comment: When actually implemented, providers really like adding naloxone to opioid-related care. One of five papers out of the Naloxone for Opioid Safety Evaluation of a naloxone co-prescribing study in San Francisco.

PubMed Update September 2016

15 papers this month.

1) Drugs, Guns and Cars: How Far We Have Come to Improve Safety in the United States; Yet We Still Have Far to Go.

Dodington J, Violano P, Baum CR, Bechtel K.

Pediatr Res. 2016 Sep 27. doi: 10.1038/pr.2016.193. [Epub ahead of print] Review.

Comment: Review of safety efforts in public health.

2) Primary Care Patient Experience with Naloxone Prescription.

Behar E, Rowe C, Santos GM, Murphy S, Coffin PO.

Ann Fam Med. 2016 Sep;14(5):431-6. doi: 10.1370/afm.1972.

Comment: This is a partner paper to the study results reported a couple of months ago. Mixed methods interviews with 60 randomly selected patients on longterm opioid therapy for chronic pain who had been prescribed naloxone. The co-prescribing effort reached a population that was not really accessing naloxone through other community distribution sites in San Francisco. Some reported improved safety with opioids since receiving naloxone and none reported more high-risk use behaviors. About half of those who had overdosed denied “overdose” and described it as a bad reaction.

3) Opioid Overdose Experience, Risk Behaviors, and Knowledge in Drug Users from a Rural versus an Urban Setting.

Dunn KE, Barrett FS, Yepez-Laubach C, Meyer AC, Hruska BJ, Petrush K, Berman S, Sigmon SC, Fingerhood M, Bigelow GE.

J Subst Abuse Treat. 2016 Dec;71:1-7.

Comment: Can’t access the paper, but the abstract suggests higher rates of overdose among rural drug users versus urban, while there were fewer overdose risk behaviors among rural users (potentially raising concerns about our risk behaviors, which were retrospectively developed).

4) Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.

Scott N, Carrotte ER, Higgs P, Cogger S, Stoové MA, Aitken CK, Dietze PM.

Drug Alcohol Depend. 2016 Sep 11;168:140-146. doi: 10.1016/j.drugalcdep.2016.08.638. [Epub ahead of print]

Comment: People who inject drugs have more psychological distress than the general population. Not surprised that intentional overdose (i.e. suicide attempt) is associated with psychological distress.

5) Notes from the Field: Furanyl-Fentanyl Overdose Events Caused by Smoking Contaminated Crack Cocaine - British Columbia, Canada, July 15-18, 2016.

Klar SA, Brodkin E, Gibson E, Padhi S, Predy C, Green C, Lee V.

MMWR Morb Mortal Wkly Rep. 2016 Sep 23;65(37):1015-1016. doi: 10.15585/mmwr.mm6537a6.

Comment: Fentanyl in crack. Ugh.

PubMed Update June 2016

Summer holiday. A mere 10 articles this month!

1) Community pharmacist knowledge, attitudes and confidence regarding naloxone for overdosereversal.

Nielsen S, Menon N, Larney S, Farrell M, Degenhardt L.

Addiction. 2016 Jul 1. doi: 10.1111/add.13517. [Epub ahead of print]

Comment: Most pharmacists in Australia would provide naloxone, but a minority feel comfortable selecting patients and educating about naloxone use and overdose.

2) Nonrandomized Intervention Study of Naloxone Coprescription for Primary Care Patients Receiving Long-Term Opioid Therapy for Pain.

Coffin PO, Behar E, Rowe C, Santos GM, Coffa D, Bald M, Vittinghoff E.

Ann Intern Med. 2016 Jun 28. doi: 10.7326/M15-2771. [Epub ahead of print]

Comment: Naloxone can be successfully prescribed to primary care patients on longterm opioids for chronic pain, and receipt of naloxone is associated with a remarkable reduction in opioid-related emergency department visits.

3) Opioid Use Disorders.

Sharma B, Bruner A, Barnett G, Fishman M.

Child Adolesc Psychiatr Clin N Am. 2016 Jul;25(3):473-87. doi: 10.1016/j.chc.2016.03.002. Epub 2016 Apr 9. Review.

Comment: Review of opioid use disorder and treatments.

4) Predictors of seeking emergency medical help during overdose events in a provincial naloxone distribution programme: a retrospective analysis.

Ambrose G, Amlani A, Buxton JA.

BMJ Open. 2016 Jun 21;6(6):e011224. doi: 10.1136/bmjopen-2016-011224.

Comment: Respondents administering naloxone to overdoses on the street were more likely to call for medical assistance than those doing so in a private residence. This makes a lot of sense. Imaging if giving a breathing treatment for asthma in a home versus on the street – the latter setting is more likely to result in seeking assistance.

PubMed Update November 2015 - January 2016

We have 35 articles for your viewing this time, with apologies for the delay in getting this out. Thanks to Traci Green for offering to help out and for reviewing this post.

1) Management of patients with issues related to opioid safety, efficacy and/or misuse: a case series from an integrated, interdisciplinary clinic.

Becker WC, Merlin JS, Manhapra A, Edens EL.

Addict Sci Clin Pract. 2016 Jan 28;11(1):3. doi: 10.1186/s13722-016-0050-0.

Comment: Fascinating article. Worth a read if you’re interested in management of pain and opioids.

2) Circumstances and contexts of heroin initiation following non-medical opioid analgesic use in New York City.

Harocopos A, Allen B, Paone D.

Int J Drug Policy. 2015 Dec 29. pii: S0955-3959(15)00374-6. doi: 10.1016/j.drugpo.2015.12.021. [Epub ahead of print]

Comment: Great to see some of the path from prescription opioids to heroin. Makes sense that first step is moving from a drug co-formulated with acetaminophen.

3) Emergency Department-Based Opioid Harm Reduction: moving physicians from willing to doing.

Samuels EA, Dwyer K, Mello MJ, Baird J, Kellogg A, Bernstein E.

Acad Emerg Med. 2016 Jan 27. doi: 10.1111/acem.12910. [Epub ahead of print]

Comment: To get EDs to enhance practices will require pressure from the top.

4) Internal Medicine Resident Knowledge, Attitudes and Barriers to Naloxone Prescription in Hospital and Clinic Settings.

Wilson JD, Spicyn N, Matson P, Alvanzo A, Feldman L.

Subst Abus. 2016 Jan 28:0. [Epub ahead of print]

Comment: Nice article from Baltimore finding that young physicians are ready and willing to prescribe naloxone, but aren’t routinely doing so yet.

PubMed Update March - May 2015

Three months. 46 papers. I’m already a month behind.

1) Development and implementation of intranasal naloxone opioid overdose response protocol at a homeless health clinic.

Dahlem CH, Horstman MJ, Williams BC.

J Am Assoc Nurse Pract. 2015 Mar 26. doi: 10.1002/2327-6924.12249. [Epub ahead of print]

Comments: Naloxone programs have been providing kits to settings where homeless people receive services for many years. This is a description of a program at a homeless health clinic.

2) Quantification of morphine, morphine 6-glucuronide, buprenorphine, and the enantiomers of methadone by enantioselective mass spectrometric chromatography in whole blood.

Christoffersen DJ, Brasch-Andersen C, Thomsen JL, Worm-Leonhard M, Damkier P, Brøsen K.

Forensic Sci Med Pathol. 2015 Jun;11(2):193-201. doi: 10.1007/s12024-015-9673-9. Epub 2015 Mar 24.

Comments: It’s been awhile since we had a forensics paper here. I think this is a novel method of identifying enantiomers.

3) A Comparison of Liver Disease Mortality With HIV and Overdose Mortality Among Georgia Prisoners and Releasees: A 2-Decade Cohort Study of Prisoners Incarcerated in 1991.

Spaulding AC, Sharma A, Messina LC, Zlotorzynska M, Miller L, Binswanger IA.

Am J Public Health. 2015 May;105(5):e51-7. doi: 10.2105/AJPH.2014.302546. Epub 2015 Mar 19.

Comments: Stunningly low rate of drug overdose mortality in this cohort of prisoners in Georgia. This is one of the first times I’ve seen a paper on opioid overdose find radically different results in a different setting. I can’t access for details.

4) A Review of Opioid Overdose Prevention and Naloxone Prescribing: Implications for Translating Community Programming Into Clinical Practice.

Mueller SR, Walley AY, Calcaterra SL, Glanz JM, Binswanger IA.

Subst Abus. 2015 Mar 16:1-14. [Epub ahead of print]

Comments: A review toward the end of using community distribution data to build clinical care naloxone prescription.

5) Long-term course of opioid addiction.

Hser YI, Evans E, Grella C, Ling W, Anglin D.

Harv Rev Psychiatry. 2015 Mar-Apr;23(2):76-89. doi: 10.1097/HRP.0000000000000052.

Comments: This is a systematic review of long-term studies of opioid users. Among many fascinating data reported, the length of time not using a drug of choice increases the likelihood of continuing to not use that drug. This seems obvious to many, but I don’t believe it’s been documented before. Good read for anyone looking to understand some of the longitudinal outcome data.

PubMed Update May/June 2014

25 papers in two months. Anyone want to help with this?

1) Naloxone therapy in opioid overdose patients: intranasal or intravenous? A randomized clinical trial.

Sabzghabaee AM, Eizadi-Mood N, Yaraghi A, Zandifar S.

Arch Med Sci. 2014 May 12;10(2):309-14. doi: 10.5114/aoms.2014.42584. Epub 2014 May 13.

PMID: 24904666 [PubMed] Free PMC Article

Comments: More data to support the utility of intranasal naloxone for overdose reversal. There are, however, some odd findings that suggest caution in interpreting the paper. The authors used 0.4mg of naloxone for IV or IN administration, whereas most efforts utilize 2mg for IN administration given the lower bioavailability. Moreover, they had a higher level of consciousness in the IN group, which seems odd.

2) Brugada Phenocopy in Concomitant Ethanol and Heroin Overdose.

Rambod M, Elhanafi S, Mukherjee D.

Ann Noninvasive Electrocardiol. 2014 Jun 5. doi: 10.1111/anec.12171. [Epub ahead of print]

PMID: 24903622 [PubMed - as supplied by publisher]

Comments: There are cases in which opioids can result in unstable heart rhythms. Usually this is related to high dose methadone, prolongation of the QT interval and torsades de pointes. In this case, heroin plus alcohol may have resulted in electrical conduction similar to “Brugada syndrome” which, in the interest of having an image in this blog post, I’ve posted an image of here. This type of electrical conduction is usually genetic and can result in sudden death through lethal arrhythmias.

3) A systematic review of community opioid overdose prevention and naloxone distribution programs.

Clark AK, Wilder CM, Winstanley EL.

J Addict Med. 2014 May-Jun;8(3):153-63. doi: 10.1097/ADM.0000000000000034.

PMID: 24874759 [PubMed - in process]

Comments: An impressive review of existing data for naloxone programs. Big kudos to the authors.

4) Intravenous methadone application as a serious risk factor for an overdose death: methadone-related fatalities in Hamburg from 2007 to 2012.

Iwersen-Bergmann S, Jungen H, Andresen-Streichert H, Müller A, Elakkary S, Püschel K, Heinemann A.

Int J Legal Med. 2014 May 25. [Epub ahead of print]

PMID: 24859230 [PubMed - as supplied by publisher]

Comments: Interesting analysis of methadone-related deaths among methadone maintenance patients suggesting that, while overdose deaths are not common, many may have been related to IV use of methadone.

5) Abnormal intracellular calcium homeostasis associated with vulnerability in the nerve cells from heroin-dependent rat.

Liu X, Wang G, Pu H, Jing H.

Brain Res. 2014 Jul 14;1572:40-9. doi: 10.1016/j.brainres.2014.05.016. Epub 2014 May 20.

PMID: 24854119 [PubMed - in process]

Comments: Intriguing analysis of rat brains suggesting a key role of calcium in neurotoxicity related to heroin use. Do medications like verapamil, generally used to manage hypertension, have a role in preventing neurologic damage from opioids and perhaps even reducing overdose risk?

6) Source of prescription drugs used nonmedically in rural and urban populations.

Wang KH, Fiellin DA, Becker WC.

Am J Drug Alcohol Abuse. 2014 Jul;40(4):292-303. doi: 10.3109/00952990.2014.907301. Epub 2014 May 22.

PMID: 24853143 [PubMed - in process]

Comments: Around a fifth of people using prescription opioids “non-medically” get them directly from a physician.

PubMed Update March/April 2014

Better late than never, right? 24 papers over two months.

1) Overdose rescues by trained and untrained participants and change in opioid use among substance-using participants in overdose education and naloxone distribution programs: a retrospective cohort study.

Doe-Simkins M, Quinn E, Xuan Z, Sorensen-Alawad A, Hackman H, Ozonoff A, Walley AY.

BMC Public Health. 2014 Apr 1;14(1):297. [Epub ahead of print]

Comments: Sometimes naloxone is used by bystanders who have not been formally educated (or “trained”) in administering naloxone. This innovative analysis suggests that the untrained witness does a good job in lay naloxone administration.

2) Easy-to-use overdose antidote earns fast-track approval.

Kuehn BM.

JAMA. 2014 Apr 23-30;311(16):1600. doi: 10.1001/jama.2014.4483. No abstract available.

Comments: The naloxone auto-injector – Evzio – has been approved and is expected to be available this summer.

3) Research gaps on methadone harms and comparative harms: findings from a review of the evidence for an american pain society and college on problems of drug dependence clinical practice guideline.

Weimer MB, Chou R.

J Pain. 2014 Apr;15(4):366-76. doi: 10.1016/j.jpain.2014.01.496.

Comments: Basic summary is that it’s not entirely clear why there was such a surge in methadone-related deaths in the early part of the 2000s. It’s important to remember that the surge came after a surge in oxycontin-related deaths, when many payers shifted their preferred agent from oxycontin to methadone. Mortality data seems to follow the trend of the most prescribed agent.

4) Paramedic-supplied 'Take Home' Naloxone: protocol for cluster randomised feasibility study.

Moore C, Lloyd G, Oretti R, Russell I, Snooks H.

BMJ Open. 2014 Mar 20;4(3):e004712. doi: 10.1136/bmjopen-2013-004712.

Comments: Outstanding, innovative design to reach those at very high risk of future overdose events. I anxiously await results.

PubMed Update January 2014

10 papers this month, half of which relate to the United Kingdom. We continue to move forward.

1) Characterization of opioid overdose and response in a high-risk community corrections sample: A preliminary study.

Cropsey KL, Martin S, Clark CB, McCullumsmith CB, Lane PS, Hardy S, Hendricks PS, Redmond N.

J Opioid Manag. 2013 Nov-Dec;9(6):393-400.

Comments: Valuable survey of persons in the corrections system, under community supervision. Nearly half had used opioids and 40% of those had experienced an opioid overdose. Those who had overdosed were more likely to be white, female, and have higher educational attainment; they were also much more likely to have witnessed overdose, have seen someone die of overdose, and want training in overdose prevention and management.

2) Opioids Compared to Placebo or Other Treatments for Chronic Low Back Pain: An Update of the Cochrane Review.

Chaparro LE, Furlan AD, Deshpande A, Mailis-Gagnon A, Atlas S, Turk DC.

Spine (Phila Pa 1976). 2014 Jan 29. [Epub ahead of print]

Comments: A review of studies evaluating short term use of opioids for chronic lower back pain. The studies evaluated all have major shortcomings so we’re left with little new information.

3) Opioid overdose with gluteal compartment syndrome and acute peripheral neuropathy.

Adrish M, Duncalf R, Diaz-Fuentes G, Venkatram S.

Am J Case Rep. 2014 Jan 15;15:22-6

Comments: Being “down” with an overdose for a prolonged period can lead to complications such as rhabdomyolysis and nerve compression. This patient developed compartment syndrome, which is to say high pressure within the fascial compartment of the buttocks, requiring surgical intervention to spare her extremity.