2/26/2019 1
Updates in Complex Chronic Pain
Soraya Azari, MD Associate Professor of Medicine
Disclosures
None
Updates in Complex Chronic Pain Soraya Azari, MD Associate - - PDF document
2/26/2019 Updates in Complex Chronic Pain Soraya Azari, MD Associate Professor of Medicine Disclosures None 1 2/26/2019 Objectives To be familiar with all the new, exciting medical evidence related to chronic pain
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None
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To be familiar with all the new, exciting medical evidence related to chronic pain management and the use of opioids.
To be able to describe the level of evidence for
To review the management of patients with opioid use disorder and chronic pain.
To give you resources for patient education and support for chronic pain.
MW is a 35yo F with a prior motor vehicle accident (~ 10 years ago) s/ p surgery with resultant chronic pain syndrome, GAD, PTSD, depression, and she is taking chronic opioid therapy. She has been on these medications for ~ 10 years.
Her meds include:
Oxycodone ER 20mg 1-2 tabs QID Oxycodone IR 20mg 1 tab tid MME= 290mg Duloxetine 60mg BID Tizanidine 4mg tid prn spasm pain Diclofenac 1% gel TID prn pain Lidocaine 5% cream applied tid prn pain APAP 500mg q6hr prn pain
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The patients is seen by primary care, pain management clinic,
The pain management clinic does not prescribe opioids (only provides recs on non-opioid analgesics). There is a cognitive behavioral therapist that sees the patients when she goes to clinic (which is every 1-2 mos).
The patient is very fixated on her opioid analgesics. She is splitting the oxycodone IR tabs so she can take some every 3 hours exactly (she watches the clock). She feels like the
feels minimal benefit from her duloxetine, tizanidine, and topical agents.
She is seen in the clinic with her daughter
She is diaphoretic, anxious-appearing and with pressured
speech talking about the ways she takes her pills. Her daughter is very active in the exam room, and the patient seems to have poor recognition of the child’s need for attention.
Her pain
Pain scores shown
Her function
She is not working She has a spouse and
a 2 year old child
She attends ~ 65% of
her appointments
Concerning behaviors
Utox pos oxy, THC Denies any substance
use
Admits that she uses
her opioids to help manage her anxiety Dose increases
Pain Level
1 2 3 4 5 6 7 8 9 Mar-14 Mar-15 Mar-16 Mar-17 Mar-18
80mg 180mg 290mg
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I don’t have a problem with my medications. I need these to get through my day and function. These are allowing me to function. I keep feeling pressured by everyone to change my dose of the medication or to do something different.
Which of the following summarizes the best treatment for this patient?
1) Taper medication due to 2016 CDC guideline
recommendations
2) Opioid rotation based on prospective RCTs
demonstrating benefit of this technique
3) Continue same medications and amplify
psychological interventions
4) Transition to buprenorphine-naloxone or
methadone maintenance
5) Taper medication due to abnormal urine tox
screen
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Which of the following summarizes the best treatment for this patient?
1) Taper medication due to 2016 CDC guideline
recommendations
2) Opioid rotation based on prospective RCTs
demonstrating benefit of this technique
3) Continue same medications and amplify
psychological interventions
4) Transition to buprenorphine-naloxone or
methadone maintenance
5) Taper medication due to abnormal urine tox
screen
Tapers of chronic opioid therapy
Evidence-base
New, systematic review looking at opioid tapers in
patients on chronic opioid thearpy
prospective, RCTs of opioid tapers
pain
– Voluntary tapers with support likely do not cause worsening of pain, and may be associated with improvement Fishbain and Pulikal. Pain Medicine 2018
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Unilateral tapers of chronic opioid therapy (based
NOT a recommendation in the 2016 CDC Guidelines Clinicians should evaluate benefits and
https://www.cdc.gov/drugoverdose/pdf/guidelines_factsheet-a.pdf
Health Systems Interventions
VA (Clin Practice Guidelines 2017)
Kaiser
Strongly encourage taper if any are
present:
alcohol, muscle relaxers, THC, illicit drugs, sedating antihistamines
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Kaiser
40% reduction in high dose patients No change in patient satisfaction scores
VA
From 2012 to 2016 (Opioid Safety Initiative):
decrease in opioid prescriptions 25% across VA clinics
(baseline 25% COT)
47% dec opioid+ BZD Dec rate OD in pts on COT from 0.16 to 0.08%
CMS, Medicare Part D
Sponsor may put in “hard safety edits” > 200MME Sharp et al. Am Journal Of Managed Care 2018. Gellad W JAMA IM. 2017;177:611.
Available at: www.ncsl.org
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https://agportal-s3bucket.s3.amazonaws.com/uploadedfiles/Another/News/Press_Releases/ OpioidSummitReport.pdf
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50 deaths
Drop in life expectancy
CDC report: Available at: https://www.cdc.gov/nchs/data/hus/hus17.pdf
How to do it: Voluntary Taper
Education & Support
Counsel the patient in advance about the possibility of an OUD
and the need to transition to a different treatment
Team -based care: IPMP?, Behavioral health?, RNs?, PharmD? Alternative agents for pain management
Schedule
10% per week cited by many guidelines (* * no strong evidence
base)
CDC Taper Guide:
https: / / www.cdc.gov/ drugoverdose/ pdf/ clinical_pocket_guide_ta pering-a.pdf
On-line schedule generator:
http: / / www.hca.wa.gov/ medicaid/ pharmacy/ documents/ taperschedule.xls
Berna et al. Mayo Clinic Proceedings 2015;90(6):828-842
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VA Opioid Taper Decision Tool. See references for URL.
that will impact the Taper
Separate fear of pain from anticipation of pain Talk about withdrawal
the Patient’s Best Interest
Don’t just cite guidelines. Risks and benefits.
OK with Adjustments
Pause, temporarily reverse taper during flares Henry et al 2018 J of Pain
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Henry et al 2018 J of Pain Henry et al 2018 J of Pain
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Tapering handouts:
Vancouver DPH:
https: / / vch.eduhealth.ca/ PDFs/ EA/ EA.835.O86.pdf
Pain and Ways To Manage I t:
https: / / vch.eduhealth.ca/ PDFs/ FM/ FM.850.M311.PHC.pdf
McMaster Univ:
http: / / nationalpaincentre.mcmaster.ca/ documents/ Opioid% 20Tape ring% 20Patient% 20Information% 20(english).pdf
Tapering Videos
UC Davis: patient testimonials (13min):
https: / / www.youtube.com/ watch?v= bdAdkcpxXdw
Laura’s Story: Stanford:
https: / / www.youtube.com/ watch?v= 75PEivn1I Ok&index= 3&list= P LT73E4yXLvEWr5VZ9q6UM_Ctmx_fh5SXz&t= 0s
TED Talk by patient (14min):
https: / / www.youtube.com/ watch?v= WhpAYw9kCt8
Low quality medical evidence suggests the feasibility of opioid tapering and possible reductions in pain.
National guidelines for chronic opioid therapy DO NOT recommend involuntary tapers.
Most patients have thought about or are interested in tapering their dose.
Major, large health-care institutions have successfully decreased opioid prescribing, but have utilized ancillary supports for behavioral health and pain management.
For opioid tapers: go slow, provide choice, cheerlead, and pause, if needed.
If a patient has an OUD, do NOT taper. Treat OUD.
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Which of the following summarizes the best treatment for this patient?
1) Taper medication due to 2016 CDC guideline
recommendations
2) Opioid rotation based on prospective RCTs
demonstrating benefit of this technique
3) Continue same medications and amplify
psychological interventions
4) Transition to buprenorphine-naloxone or
methadone maintenance
5) Taper medication due to abnormal urine tox
screen
Bottom Line, Evidence-base:
No proven benefit in prospective, RCTs. Low quality evidence (case reports, retrospective,
uncontrolled studies)
Quigley C. Cochrane Database Syst Rev 2004;CD004847
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Which of the following summarizes the best treatment for this patient?
1) Taper medication due to 2016 CDC guideline
recommendations
2) Opioid rotation based on prospective RCTs
demonstrating benefit of this technique
3) Continue same medications and amplify
psychological interventions
4) Transition to buprenorphine-naloxone or
methadone maintenance
5) Taper medication due to abnormal urine tox
screen
Evidence for Non- Pharm, Non-Invasive Tx of Pain from AHRQ review in 2018:
AHRQ review available in references.
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PCORI-funded pros RCT study in Alabama of safety-net patients with chronic pain
290 patients: 71% F, 67% AA,
72% at/ below poverty level, 83% disabled, 50% LBP, 68%
Exclude: cancer pain, self-
reported substance abuse
Primary outcome:
Pain, function, depression
Tx: 90min CBT class q wk x10
Outcome: https://pmt.ua.edu/uploads/1/3/9/9/13995339/lamp_cbt_client_workbook.pdf. Thorn et al. Ann Intern Med 2018;168:471
CBT Group
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Many psychosocial interventions are successful for the treatment of pain.
Cognitive behavioral therapy delivered through a group class for safety-net patients is associated with improvements in pain, function, and depression scores.
Which of the following summarizes the best treatment for this patient?
1) Taper medication due to 2016 CDC guideline
recommendations
2) Opioid rotation based on prospective RCTs
demonstrating benefit of this technique
3) Continue same medications and amplify
psychological interventions
4) Transition to buprenorphine-naloxone or
methadone maintenance
5) Taper medication due to abnormal urine tox
screen
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4Rs
Risk of bodily
Relationship
Role Failure Repeated attempts
Tolerance* Withdrawal* 4Cs
Loss of Control Consequences Compulsion Craving
* Don’t count if pt on COT for pain
Source: Am J Psychiatry. 2013;170(8):834-851.
a One or more abuse criteria within a 12-month period and no dependence diagnosis; applicable to all substances
except nicotine, for which DSM-IV abuse criteria were not given.
b Three or more dependence criteria within a 12-month period. c Two or more substance use disorder criteria within a 12-month period. d Withdrawal not included for cannabis, inhalant, and hallucinogen disorders in DSM-IV. Cannabis withdrawal added
in DSM-5.
Loss of Control Compulsion
Consequences
Craving Compulsion Risk bodily harm
Rel’ship trouble Role Failure
Repeated try cut back
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Consequences hard to detect with lack of scarcity
Provider and patient are emotionally incentivized to not think/ look/ consider an OUD
Provider sees no problem patient loves me, don’t
want to be “duped” or culpable
Patient sees no problem I am suffering in pain. I
am not one of “those people”.
Lack of collateral
Stigma
Transitions in care
Source: Am J Psychiatry. 2013;170(8):834-851.
a One or more abuse criteria within a 12-month period and no dependence diagnosis; applicable to all substances
except nicotine, for which DSM-IV abuse criteria were not given.
b Three or more dependence criteria within a 12-month period. c Two or more substance use disorder criteria within a 12-month period. d Withdrawal not included for cannabis, inhalant, and hallucinogen disorders in DSM-IV. Cannabis withdrawal added
in DSM-5.
Loss of Control Compulsion
Consequences
Craving Compulsion Risk bodily harm
Rel’ship trouble Role Failure
Repeated try cut back
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From Washington State Kaiser Permanente Opioid Guidelines Risk factors misuse Young age Hx SUD MDE Use of psychotropics
COMM
Consultation
Increased monitoring
Pill counts Decreased
refill interval
Urine
toxicology screening
Available at: http://mytopcare.org/wp-content/uploads/2013/05/COMM.pdf
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Methadone
Higher level of
Other SUD,
especially etoh & BZDs
Active psychiatric
illness
Need for
monitoring
Daily, observed
Buprenorphine-
Office-based
Dissolvable tab or
Provider must
Safe
Which of the following summarizes the best treatment for this patient?
1) Taper medication due to 2016 CDC guideline
recommendations
2) Opioid rotation based on prospective RCTs
demonstrating benefit of this technique
3) Continue same medications and amplify
psychological interventions
4) Transition to buprenorphine-naloxone or
methadone maintenance
5) Taper medication due to abnormal urine tox
screen
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Common – estimate ~ 18% of patients
Urine toxicology testing positive for marijuana is not by itself considered reason to discontinue
Positive urine toxicology for THC in COT patients
Risk factor for future aberrancy Increase monitoring
Urine toxicology testing is not perfect
Use of other medications can cause false positives
(dronabinol, pantoprazole, NSAIDs)
More frequent use can cause prolonged positive
results
4d/ week may be pos 5-7 days Daily use may be pos 10-15 days
DiBenedetto DJ et al. Pain Med 2018;19:1997. Standridge J Am Fam Physician 2010;81(5):635 Nugent SM et al. Gen Hosp Psychiatry. 2018;50:104.
Is it the answer?
Dec opioid-related deaths in states with
medical marijuana compared to those without (2014)
Observational data of decreased opioid-
related deaths in states with legalization (Colorado), 2017
High quality studies still lacking
What “dose” of marijuana? What active
ingredient is most important? Who benefits?
Livingston MD et al. Am J Public Health 2017;107:1827. Bachhuber MA et al. JAMA IM 2014
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The patient’s case was very complicated.
Some members of her care team felt she had a
prescription opioid use disorder.
Others disagreed. Everyone agreed that her level of pain control was
poor.
She has begun a taper due to lack of benefit from
functional improvement.
She has been counseled about the option of switching
to bupe-naloxone for pain+ OUD, should that need arise.
We are all frequently encountering the question of
question of risk v. benefit.
Use your MI skills to elicit patient thoughts and concerns about their dose.
Dose reduction is possible. Be flexible and understanding during the taper process.
If a patient has both an opioid use disorder and chronic pain, offer bupe-nx or methadone.
Use of marijuana in patients taking chronic opioid therapy is generally not considered a reason for automatic discontinuation.
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Your 55yo M patient has a history of obesity, COPD, chronic low back pain and HTN is presenting for f/ u. He is complaining of ongoing pain in his low back with pain that “shoots down” the leg. The pain is 9/ 10, severe, and has been constant for several weeks now. No other neuro sxs. Exam is non-focal.
He is taking:
Gabapentin 300mg po tid Benaz-HCTZ 10-12.5mg daily Lidocaine cream topically Tiotropium 1 cap inhaled daily
Which of the following will be your best next step to address his current pain complaint?
A) Refer for urgent neurosurgical evaluation – non
focal exam
B) Arrange ESI as soon as possible C) Raise dose of his gabapentin to 600mg tid D) Trial of opioid therapy E) Trial of amitriptyline F) Something else
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Evidence-Base
Systematic review
30 trials of ESI for radiculopathy 8 trials of ESI for spinal stenosis 5 trials good quality Outcome:
the threshold for a predefined clinically important
Chou R et al. Ann Intern Med 2015.
ESI
On the rise given the opioid epidemic (inc 13% from
2012 to 2016; VA 17% increase)
Medicare reimbursement for procedure increased in
2016 (opioid epidemic)
Safety concerns with Depo-Medrol
Complaints of injuries and complications from the shots
– Pfizer asked DEA to ban tx 5yrs ago, but they did not
Warning label:
been reported with epidural injection of corticosteroids. Specific events reported include, but are not limited to, spinal cord infarction, paraplegia, quadriplegia, cortical blindness, and stroke.”
https://www.nytimes.com/2018/07/31/health/opioids-spinal-injections.html
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Which of the following will be your best next step to address his current pain complaint?
A) Refer for urgent neurosurgical evaluation B) Arrange ESI as soon as possible C) Raise dose of his gabapentin to 600mg tid D) Trial of opioid therapy E) Trial of amitriptyline F) Something else
Recent systematic review of gabapentin and pregabilin for LBP + / - radicular symptoms
9 placebo-controlled RCTs High-quality evidence NO EFFECT on pain or disability in short- or
intermediate-term
Anticonvulsants for back pain prescribing
Increases 535% in past 10 years Landefeld NEJM 2009. Shanthanna et al. PLOS 2017
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Harms Related to Gabapentin & pregabilin
Nested case-control study from Canada (1997-2013)
Cases: died of opioid-related causes Controls: living, also taking opioids Matching: age, sex, yr start opioids, CKD, disease risk
index
Exposure: gabapentin in 120d before death Result: gabapentin associated with 4 9 % increased
risk of opioid-related death com pared to opioids alone
Pregabilin study
Nested case-control study from Canada (1997-2016)
increase risk of opioid-related death compared to those on opioids alone
Gomes et al. PLOS 2017. Gomes T et al. Ann Intern Med 2018;169:732.
What do we know?
# 5 rx drug in US (goodrx) Anecdotal reports of its ability to
potentiate “opioid high”
Estimated misuse in ~ 2 0 % of pts using
Use of gabapentin and opioids – 4-fold inc
risk resp depression
Schedule 5 in Kentucky; pend Ten Rescheduled in England Smith RV et al. Addiction 2016;111(7):1160. Peckham AM et al. 2018 Risk Man and Healthcare Policy, vol 11.
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Which of the following will be your best next step to address his current pain complaint?
A) Refer for urgent neurosurgical evaluation B) Arrange ESI as soon as possible C) Raise dose of his gabapentin to 600mg tid D) Trial of opioid therapy E) Trial of amitriptyline F) Something else
240 VA patients 2013-15 with moderate to severe chronic back or hip or knee OA pain despite analgesic use
Excluded: patients on LT opioids or SUD Included: severe depression (~ 20% ), PTSD (~ 20% ) 13% F, 88% white, 65% LBP, 35% hip/ knee OA, 25%
current smokers, 3% Etoh, 10% illicit drugs
Randomized to either:
Opioids: IR LA fentanyl (to max 100ME) Non-opioids: APAP/ NSAIDs TCA, gaba, top lido
pregabilin, dulox, tramadol (11% )
Monthly visit w/ pharm., BPI (1˚ ), pain intensity (2˚ )
Outcome (1 yr):
BPI: no difference, pain intensity (better in non-opioid),
more side effects (opioid)
JAMA 2018. 319(6):872-82
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Which of the following will be your best next step to address his current pain complaint?
A) Refer for urgent neurosurgical evaluation B) Arrange ESI as soon as possible C) Raise dose of his gabapentin to 600mg tid D) Trial of opioid therapy E) Trial of amitriptyline F) Something else
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Amitriptyline and LBP
N= 146 Aust patients with nonspecific chronic LBP
(61% M, depressed, NOT on opioids)
Design: randomized, double-blind, pros RTC Tx: amitriptyline (25mg/ d) v. benztropine (1mg/ d)
x6mo
Outcome:
4.8 (benztropine), less disability at 3mos
Which of the following will be your best next step to address his current pain complaint?
A) Refer for urgent neurosurgical evaluation B) Arrange ESI as soon as possible C) Raise dose of his gabapentin to 600mg tid D) Trial of opioid therapy E) Trial of amitriptyline F) Som ething else
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Systematic reviews do NOT suggest benefit for gabapentin or pregabilin in patients with low back pain.
Gabapentin and pregabilin have been observed to be associated with increased risk of opioid-related death when co-prescribed, and have some addictive properties.
Pooled data does not show benefit to epidural steroid injections (ESI) for radicular low back pain
Opioids are not superior to non-opioids for treatment of low back pain.
Voluntary opioid tapers are achievable and may be associated with reductions in pain.
Chronic opioid therapy treatment is about risks versus benefits. When the risks outweigh the benefits, that is an indication to taper.
If a patient has pain and an opioid use disorder, they need to be offered medication treatment including buprenorphine-naloxone or methadone.
New data is making us question some of our medication and intervention choices – including use
injections.
Non-pharmacologic treatments for chronic pain are effective and beneficial for our patients. We need to adapt our clinical systems to meet our patients’ needs.
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Patients:
Pain Toolkit:
http: / / www.change-pain.com/ cmsdata/ change-pain-
portal/ en_EN/ pdf/ pain_toolkit_cp_en.pdf
Chronic Pain Facebook Groups You tube videos to educate patients about pain:
Chronic pain in 5 minutes:
https: / / www.youtube.com/ watch?v= C_3phB93rvI
Treatment options: https: / / vimeo.com/ 74825810
Providers:
Washington Agency Medical Directors Guidelines:
http: / / www.agencymeddirectors.wa.gov/ Files/ 2015AMDGOpio idGuideline.pdf
SFHP patient/ provider resources:
http: / / www.sfhp.org/ providers/ pain-management/ resource- tools/
CDC: https: / / www.cdc.gov/ drugoverdose/ pdf/ guidelines_at-
a-glance-a.pdf
With permission from Peter Moore.
Tapers Info:
https: / / www.cdph.ca.gov/ Programs/ CCDPHP/ DCDIC/
SACB/ CDPH% 20Document% 20Library/ OpioidPrescrib ersResources.pdf
VA Tool:
https: / / www.pbm.va.gov/ AcademicDetailingService/ Documents/ Pain_Opioid_Taper_Tool_IB_10_939_P96 820.pdf
Chronic pain group manuals
https: / / www.va.gov/ painmanagement/ docs/ cbt-
cp_therapist_manual.pdf
AHRQ review:
https: / / effectivehealthcare.ahrq.gov/ sites/ default/ file
s/ cer-209-evidence-summary-non-pharma-chronic- pain.pdf
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Condition Pharm acologic Treatm ent Non-Pharm acologic Treatm ent Chronic Low Back Pain Pain: NSAI Ds, tram adol, SNRI s ( duloxetine), opioids* * . Function (small effect): duloxetine, tramadol, opioids. (Chou et al. Ann Internal Med 2017) Exercise; CBT; massage; mindfulness based stress reduction; yoga; tai-chi; spinal manipulation therapy (AHRQ Review 2018) Fibromyalgia Pregabalin, duloxetine, milnacipran, and amitriptyline (Hauser et al. Arthritis Res Ther 2014) Exercise; CBT; myofascial release therapy; acupuncture; tai chi; qigong; multidisciplinary rehab (AHRQ Review 2018) Osteoarthritis NSAIDs (topical and oral), APAP , tramadol, intra-articular treatments (Bannuru et al. Annals Int Med 2015; link below) Exercise; ultrasound (AHRQ Review 2018) Diabetic Neuropathy serotonin-norepinephrine reuptake inhibitors duloxetine and venlafaxine (moderate SOE), the anticonvulsants pregabalin and oxcarbazepine (low SOE), the drug classes tricyclic antidepressants (low SOE) and atypical opioids (low SOE), and botulinum toxin (low SOE) were more effective than placebo (Waldfogel et al Neurology 2017) Percutaneous electrical nerve stimulation; topical agents (capsaicin, lidocaine, isosorbide dinitrite spray) Migraine prophylactic agents: beta-blockers, AED > anti-depressants, muscle relaxants Spinal manipulation therapy (AHRQ Review 2018) Chronic Pelvic Pain Am itriptyline, gabapentin, horm onal tx; dz-specific mgmt (Bonnema et al. Cleve Clin J Med 2018, Cochrane rev 2014) Pelvic physical therapy, trigger point inj
Excess mortality (LA opioids, 60% increased risk all-cause mort)
Unintentional overdose (~ 0.7% / year 20-100MED)
Opioid use disorder (~ 20% )
Secondary Hypogonadism (~ 50% of men)
Dec bone mineral density & inc. fracture risk
Sleep-disordered breathing (60-70% of patients)
Pneumonia (case-control)
Others
Opioid-induced hyperalgesia Cardiac toxicity with methadone NAS: 5/ 1000 births after hx rx opioids during preg
Miller M, et al. JAMA Intern Med. 2015;175(4):608-15. Rose AR, et al. J Clin Sleep Med. 2014;10(8):847-52. Guilleminault C, et al. Lung 2010;188(6):459-68. Rubinstein AL, et al. Clin J Pain. 2013;29(10):840-5. Dublin Setal. JAGS, 2011;59(10): 1899. Smith HS, Elliott JA. Pain Physician. 2012;15(3 Suppl): ES145-56. Teng Z et al. Plos One. 2015;10(6). Desai et al. BMJ 2015
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High dose opioids (> 90MME) Concerning Behaviors?
Yes
Evaluate for opioid use disorder Present? Treat Not Present? Give warning. I f behavior continues, re- eval OUD
No
methadone, 3. Sleep Study, 4. total AM testosterone Risks Outw eigh Benefits?
No
Continue meds & monitoring. Discuss taper
Yes Imminent Safety risk? Yes Taper quickly No
Encourage Slow Taper