Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
CHALLENGES OF PAIN MANAGEMENT JERRY L. DENNIS, M.D. MEDICAL DIRECTOR RIVERSIDE COUNTY DEPARTENT OF MENTAL HEALTH December 2009 PAIN: Scope of the Problem THE 21th CENTURY HEALTH CARE DISASTER: – Chronic Pain: Lifetime Prevalence 60-80% – Back-Related Disability of Epidemic Proportions – Psychological, Social and Cultural Factors Play Prominent Roles in Pain and Pain-Related Disability – Pain Promotes Emotional and Behavioral Regression, and Inhibits Ability to Cope – Pain Often Initiates Cycles of Narcotic Addictions PAIN: Scope of the Problem Back pain is the most prevalent medical disorder in industrialized societies Affects ~6 million Americans each year 70% of people with acute back pain recover within one month Psychological Components of Chronic Pain Disease Onset: – Job Dissatisfaction and Poor Performance Appraisals Predict Pain: Dissatisfied with work: 2X as likely to seek Tx for pain Feel underpaid: 4X as likely to seek Tx for pain Lowest socioeconomic status: 5X as likely to seek Tx for pain First back injury at work: Predicts physical work stress and psychological intolerance of the job Psychological Components of Chronic Pain Disease Progression: – Chronic low back pain is the leading cause of disability in industrialized nations – Progression from acute to chronic pain is more dependent demographic, psychological and occupational factors than on medical pathology Blue collar jobs Labor beyond individual’s capacity Job dissatisfaction Poor performance ratings High job stress Somatization and Depression promote progression to chronic pain Sickness payments and litigation reinforce chronic pain Psychological Components of Chronic Pain Workers Compensation Systems Issues: – Delays in Dx and Tx – Continually must prove sickness to obtain care and compensation – Patients receiving compensation benefits fare worse with virtually any and all interventions attempted – Study of 2000 back pain patients: 100% returned to work except Those in litigation 0% – The longer the duration of sick/disability leave, the less likely it is that the person will ever return to work Psychological Components of Chronic Pain Good Tx Outcome Associated with: – Hx of good coping skills – Resiliency – Psychological strengths – Belief in self-efficacy – Higher socioeconomic status – Higher job satisfaction Poor Tx Outcome – Patients with active addictions and pain have the worst outcome and are prone to: Inordinate disability Symptoms exaggeration Excessive health care utilization Chronic Non-Malignant Pain (CNMP) Syndrome Persistent Pain Not associated with progressive tissue destruction Substantial psychological overlay US Commission on Pain (1987): – Intractable pain of 6 months duration or more – Marked alteration of behavior with depression or – – – – anxiety Marked restriction of daily activities Excessive use of medication and frequent use of medical services No clear relationship to organic disorder Hx of multiple, nonproductive tests, Tx and surgeries Psychological Components of Chronic Pain Chronic Pain Syndrome: – Predominantly a behavioral syndrome – Affects the minority of chronic pain patients – Preceding psychiatric illness and personality disorder : 75% – Less objective physical impairment – Degree of disability varies with: Psychological strengths of the individual Stress of the workplace Incentive and disincentives for recovery Cognitive Factors in Pain Maladaptive Cognitions: – Self-destructive thinking becomes automatic and habitual – Catastrophic Thinking: the worst case scenario Increases dysfunction Increases pain Hinders coping – Learned Helplessness: Think they are unable to control events in their lives Depression and passivity increase disability and pain Cognitive Factors in Pain – Locus of Control: Internal locus of control = better functioning External locus of control (government, employer, family, doctors, lawyers) = – Depression and anxiety – Feel helpless to deal with pain – Rely of maladaptive coping mechanisms Blaming others for pain/injury = – More mood and behavioral disturbance – Poorer response to Tx – Lowered expectations for future benefits of Tx Behavioral Components of Pain Operant Conditioning: – Behavior that is reinforced increases the frequency of the behavior – Elimination of reinforcement leads to “extinction” of behavior – Much pain behavior and dysfunction are maintained by environmental rewards: “Secondary Gain” Caretaking, drugs, money – Incentives: Financial compensation associated with greater pain and reduced efficacy of Tx Tertiary Gain: Others defend person’s disability and support helplessness Cycle of Fear and Deconditioning Physical injury and Impairment Inactivity ↑ Susceptibility to strains/sprains Depression Anxiety Helplessness Fear of Injury Isolation De-Conditioning ↑ Fragility ↓ Strength ↓ ROM Behavioral Components of Pain Affective Distress Depressed Mood: Pain, Loss of gratifying activities, Loss of selfesteem/identity, powerlessness, drug-induced affective changes Anxiety: Amplifies physical Sx, disincentive for recovery, illness permits escape from feared situations, bracing/guarding injured part, chronic tension worsens pain Anger: Increases pain-related suffering, interferes with life activities, reduces response to Tx Psychiatric Disorders in Pain Patients Chronic Pain Patients: – Most common psychiatric illnesses : Anxiety Depression Substance Abuse – Depression (10 - 83%) Marked variation related to setting and overlap of symptoms of pain and depression * Somatic pain is a common symptom of Major Depression Depression in Chronic Pain Syndromes is highly responsive to non-pharmacological interventions – Chronic Pain Rehab Unit Study (1989) – 98% resolved by discharge and recovery persisted at 1-yr f/u Psychiatric Disorders in Pain Patients Anxiety Disorders: – Anxiety itself is mostly painless – Panic attacks often present with chest or abdominal pain Autonomic arousal: Moist palms, tremors, tight facial muscles, rapid pulse – Because chronic pain is often associated with trauma, PTSD is commonly co-occurring – Severe trauma promotes somatization and anxiety – Somatoform Disorders: Non-physiological pain and “Psychogenic” pain Pain of various sorts that do not correlate well with actual anatomical findings and known pathophysiology Somatoform Disorders Psychogenic Pain Psychogenic pain: – Analogous to Conversion Disorder (Hysterical blindness, aphonia, paralysis) – Person may appear euthymic, animated and sleeps well, or may experience extreme dysfunction, suffers and may become suicidal – May be dramatic, claim extreme denial of non- medical problems, and appear cheerful despite perceived disability – Demonstrate behaviors that are incompatible with the degree of impairment they claim – Reliable indicator: Patient’s inability to discuss non-somatic issues Dx and Tx of Fibromyalgia Dx: – Pervasive unexplained physical Sx: Involving at least 3 of 4 body quadrants Of at least 3 months durations – Point tenderness at 9 bilateral locations Chronic pain and pain behavior – Distorted ambulation – Rubbing painful body parts – Increased “Down time” – Pain behaviors are reinforced and maintained by others response to the patient • Strong Operant Conditioning • Become stuck in the “sick role” Dx and Tx of Fibromyalgia – Report of Sx, functional limitations and psychological dysfunctions: Fatigue Sleep disturbance Stiffness Headaches Depression and anxiety Irritable bowel disorders 78% 76% 76% 54% 45% 36% – Plus Cognitive impairments Malaise – Patients often do not accept possible psychological basis; Not psychologically minded – 70+% meet criteria for depression – 85% % report some degree of anger Dx and Tx of Fibromyalgia Dx – Insidious onset without identifiable cause – Course is chronic and non-progressive – Sx fluctuate in severity and worse under stress – Report decreased sense of well-being – High utilizers of healthcare services – Pain does not follow known neuro-anatomical – – – – pain pathways Labs and radiologicals are normal Feel “exhausted” and “burned-out” Have a low pain threshold Hypersensitive to cold, noise and environmental irritants Dx and Tx of Fibromyalgia Tx: No known cure – Tx focused on: Relieving pain, improving sleep and physical/emotional functioning – Non-medication Tx – Lyrica (Pregabalin) – FDA approved – Neurontin (Gabapentin) – generic alternative Rx – NSAIDS – Antidepressants – Sedative-hypnotics or non-addictive medication alternatives for insomnia – Anticonvulsant Mood Stabilizers (Depakote, etc.) Avoid any PRN medications – TX OF FIBROMAYALGIA SHOULD NEVER REQUIRE OPIATE NARCOTICS! Addiction in Pain Syndromes Prevalence of Addictive Disorders in Chronic Pain Syndromes: – Difficult to determine: – Estimate 25% have a current Substance Use Disorder – Every chronic pain evaluation should include a screen for substance use disorders – Patients of conceal substance abuse by substituting prescription drugs Less negative perception if taking/using prescribed analgesics, benzodiazepines and sedatives (“muscle relaxants” or “sleep aids”) – Dx is hindered by lack of consensus as to what constitutes appropriate use of opioids and sedatives – DENIAL, DENIAL, DENIAL PAIN AND ADDICTIVE BEHAVIOR Pain and Addictive Behavior Physiological Pain Behavior Physical S/Sx of pain proportionate to anatomical/physiological findings Physical complains may be exaggerated Frequent intoxication: slurred speech, sedation No S/Sx of intoxication Impaired coordination Manages/rations medication supplies between f/u appts Irritability and mood changes Taking too many pills at once Forgetting how many pills taken Requesting increasing dosages, early or more frequent refills needed PAIN AND ADDICTIVE BEHAVIOR Physiological Pain Behavior Pain and Addictive Behavior More attentive to personal/self care Inattention to hygiene, inappropriate behaviors Functions better with pain Tx Functioning may be worse or does not improve “Sick role” disproportionate to pathology Family/SO/Caretaker concerns Prescriptions from multiple providers Rejects “sick role” Family/SO/Caretakers note less irritability and mood changes Pain and Malingering Willful deception is quite uncommon?? – 20-46% of people surveyed said they considered purposeful misrepresentation of compensation claims to be acceptable (Weintraub 1995) – No good information how frequently this occurs – More common in individuals seeking compensation or opioids than in those seeking other treatments Developmental Trauma and Pain Hx of: – – – – – May lead to difficulties with: – – – – Neglect loss Abuse Molestation Excessive Early Responsibility Children of Alcoholics/Drug Addicts Anger Dependency Helplessness Low Self-Esteem Women with Hx of: – Physical abuse > 5X increase in C/O pronounced pain – Sexual abuse > 4X increase in C/O pronounced pain Trauma and Pain Marked Adult Trauma, e.g.,: – Military combat – Natural disasters – Serious accidents and injuries – Significant personal losses – Etc. Any significant physical or emotional trauma can lead to somatization and increased pain Diagnosing Psychogenic Components of Pain Functional Impairment: – Patient’s own pain drawing/diagram – Assessment of “down time”: Hrs/day spent reclining House-bound, bed-bound, couch-bound Spending days in night clothes Emotional Symptoms: – Ask about S/Sx of depression, anxiety, irritability Refer to DSM-IV criteria for Major Depression, Generalized Anxiety Disorder, PTSD, Panic Attacks, Agoraphobia – Ask about Hx of trauma: Childhood/Developmental Adult Diagnosing Psychogenic Components of Pain Family, SO, Caregiver Response: – Supportive, encouraging function – VERSUS – Enabling, promoting “sick role” Identify Stressors Litigation/Pursuing Disability? Diagnosing Psychogenic Components of Pain Collateral Information: – Actively seek info from other sources – **HIPAA: Supports/allows for direct provider to provider communications without release Does not limit ability to listen and ask questions of those who call Diagnosing Psychogenic Components of Pain Physical Examination and Testing: – Impairment should not exceed pathology Do observed signs of impairment change with distraction? – Obtain and review actual reports of labs, radiologicals, MRI/CT scans – Don’t depend of patient reports of findings – Obtain reports from other providers: Ask about pain medication prescriptions – MSE: Is affect appropriate and congruent with the degree of pain alleged? Check for cognitive impairments/memory loss Diagnosing Psychogenic Components of Pain – Internal vs. External Locus of Control Does patient accept responsibility to actively participate in his/her recovery? Is everything contingent upon the government, the company, doctors, lawyers, spouse? Psychogenic pain patients focus more on blame, retribution, and compensation than recovery Is there a Hx of non-compliance with reasonable medical expectations or lack of active effort to recover? – Presence of secondary gain does not validate psychogenic nature of pain – Presence of secondary gain does not invalidate organic basis of pain Diagnosing Psychogenic Components of Pain Psychological Testing: – MMPI may be useful to identify psychological components or validate observed findings Personality styles, S/Sx of mental disorders – Neuropsychological Assessments: Most helpful in sorting out cognitive impairments and perceptual abnormalities Results still must be correlated with actual physical findings and clinical observations Psychological Approaches to Pain Tx Non-pharmacological Treatment: – Physical Therapy: Chronic pain causes deconditioning PT is a form of systematic desensitization Helps overcome “Learned Helplessness” Pt actively participates in rehab to achieve success and is empowering – Behavioral Modification: Behavioral changes are initiated by changing the environmental consequences of pain – Rewards, social reinforcements contingent upon healthy behaviors – In PT, praise, rest and other “rewards” follow actual completion of a goal, not just for trying. Psychological Approaches to Pain Tx – Behavioral Modification: Family/SO/Caregiver may promote invalidism by unnecessary coddling, over-accommodating pain behaviors Must learn to ignore pain behaviors and get out of caretaker role Reinforce patient self-sufficiency and change roles from caregiver to companion, friend, partner – Education: Pathology of pain including the brain Difference between “hurt” and “harm” – Reconditioning programs may initially increase pain Family/SO/Caregiver: – Worst Tx is rest/inactivity; Activity is beneficial Psychological Approaches to Pain Tx – Cognitive Behavioral Therapy: Patient learns to identify negative, harmful and inappropriate patterns of thinking Patient learn to challenge these thoughts and substitute more positive, self-supportive and helpful thoughts Patient learns to gradually alter automatic inappropriate thinking and their resulting negative behaviors Patient learns to develop an internal locus of control that helps empower success in rehab Psychological Approaches to Pain Tx – Stimulus Reinterpretation: Learn to replace catastrophic thinking and statements with more realistic, rational thinking – Assertiveness Training: Positive self expression helps overcome remaining in the “sick role” Psychological Approaches to Pain Tx – Biofeedback/Relaxation Training: Various methods/electronic devices helps regulate skeletal muscle tension, GI motility and pulse, e.g. TENS units Thermal Biofeedback: – Training in warming extremities (Raynaud’s Syndrome) EMG Biofeedback Progress Muscular Relaxation Training Meditation, Yoga, Tai Chi Self-Hypnosis – Family Therapy: Family members learn to overcome being controlled by illness, impairment and disability Psychological Approaches to Pain Tx – Self-Help Groups: American Chronic Pain Association – Multidisciplinary Pain Rehabilitation Programs/Clinics: Multiple modalities of treatment tailored to maximize comfort and improving functioning – Results of studies: • 14-60% reduction in pain • Up to 75% reduction in opioid use • Dramatic increase in functioning • 43% more were working after Tx • 90% reduction in physician visits • 50-65% fewer surgeries • 65% fewer hospitalizations • Major health care cost savings Non-Opioid Medications in Pain Tx Non-Opioid Analgesics: – NSAIDS: Most widely used for mild-moderate pain Used alone or in conjunction with opioids Mechanism of action: Prostaglandin inhibition Ceiling level beyond which increasing dose is not effective GI side effects: Nausea, vomiting, GI bleeding Renal and hematological toxicity – Antidepressants: Efficacy better demonstrated for TCAs; SSRIs less effective Analgesic effects independent of antidepressant action: – Enhance opioid effect at opioid receptors Most effective for neuropathic pain Non-Opioid Medications in Pain Tx – TCA antidepressants: Side effects great; Often poorly tolerated: – Dry mouth, burred vision, constipation, sedation, orthostatic hypotension, cardiac arrhythmias – Anticonvulsants or Anti-Epileptic Drugs: Mechanism of action unknown Most effective for paroxysmal or lancinating pain, e.g., Trigeminal Neuralgia, Post-Herpetic Neuralgia Medications: – Carbamazepine, Valproic Acid, Gabapentin – Clonazepam (Benzo and Anticonvulsant): Painful Spasms – Alfa-Adrenergic Agonist: Clonidine: Limited use for neuropathic pain Non-Opioid Medications in Pain Tx – Muscle Relaxants: Spasmolytic Agents: – Baclofen, Tizanidine, Benzodiazepines – Useful in MS and upper motor neuron lesions from trauma, CV disease, degenerative disease – Cyclobenzaprine: Sedating; short term use only – Methocarbamol, Carisoprodol, and Chlorzoxazone: • Abuse potential with no demonstrated efficacy Sleep and Pain: Pain interfere with sleep Sleep deprivation increases pain intensity Sleep problems worsen other emotional difficulties: depression and anxiety Insomnia needs to be addressed to help decrease pain and suffering: – Educate patient on sleep hygiene – Avoid combining benzos + opiates! – Instead try: • NSAIDS • Hydroxyzine • Diphenhydramine • Trazadone Interventional Procedures – – – – – – – Anesthetic Infusions Trigger Point Injections Local Nerve Blocks Spinal Steroid Injections and Facet Injections Sympathetic Nerve Blockade Spinal Cord Stimulation Physical Medicine and Rehab Therapies Heat Cold TENS (Transcutaneous Electrical Nerve Stimulation) Massage Exercise Acupuncture Botulinum Toxin Opioids in Pain Management – **Concerns: – Physical dependence – Tolerance – Addiction – Abuse – Diversion – Physical Dependence: Occurs 2-10 days after continuous use Characteristic withdrawal syndrome: – Diarrhea, piloerection, sweating, mydriasis, mild increased BP and P, CNS arousal, irritability, anxiety, insomnia – Abdominal cramps, deep bone pain, diffuse muscle aching – Intense craving to relieve withdrawal syndrome – Intensification of pain Pathophysiology of Addiction – Mesolimbic Dopaminergic System of the brain is the primary site of dysfunction caused by abused drugs – Substitution of a drug reward for a natural reward: Biological rewards (e.g., sex) Cultural rewards (e.g., stable relationships) – Effects of drugs in the Amygdala involve multiple neurotransmitters Dopamine (D-2) Opioid Peptides Serotonin (5-HT) GABA Glutamate Pathophysiology of Addiction – Most drugs cause reward/pleasure by: Disinhibiting the dopamine system Increasing dopamine stimulation Increasing glutamate release – Affect the mid-brain and limbic structures: Ventral Tegmental Area (VTA) Amygdala/Nucleus Accumbens Cortical Connections – Pre-frontal Cortex Pathophysiology of Addiction Mu Opioid Receptors: – High concentration in the Ventral Tegmental Area (VTA), Amygdala and Nucleus Accumbens GABA-ergic neurons – Progressive drug use causes changes in structure and function of the Mesolimbic circuitry – Progressive drug exposure cause changes in neuroplasticity leading to addition/addictive behaviors Pathophysiology of Addiction – Stimulation of Mu Opioid Receptors : Inhibits release of GABA Increases firing of Dopamine neurons in the Nucleus Accumbens Increased levels of Dopamine in the Nucleus Accumbens elicits behaviors characteristic of addiction Drug (Opiate)-Induced neuroplasticity changes sustain behaviors characteristic of addiction (craving, increase tolerance, affect drug satiety) Pathophysiology of Addiction – Explanation of Addiction: Recreational drug use cause physiological adaptations of the mid-brain Amygdala/Nucleus Accumbens Brain reward/pleasure circuitry is altered/reset User must increase the amount of drug used to create the same reward/pleasure response Reward/pleasure circuitry may be permanently altered The best indicator of drug satiety is the level of dopamine in the Nucleus Accumbens Opioids in Pain Management – Tolerance: Need to increase doses to achieve the same effects Tolerance can develop for analgesic effects and respiratory depression, sedation or nausea **Increase opioid doses are needed for progression of underlying disease (e.g., cancer) but not for stable disease or Tx of painful tissue pathology Absolute tolerance to analgesic effects does not occur Massive dosages can be given safely and with good effect – **Must monitor for over-sedation and respiratory depression** Addiction: In Pain Treatment – Presence of adverse consequences due to use of the drugs: – Over-sedation, euphoria – Deteriorating functioning despite relief of pain – Increasing pain despite increasing dosages – Increase in pain-associated distress: anxiety, insomnia, depression; negative affect Addiction: In Pain Treatment – Loss of control over drug use: – Fails to bring unused mediation to appts – Requests early refills – Lost or stolen scripts – Appear in clinic without appt and in distress – Frequent additional visits to the ED requesting opiate narcotics (and benzos) – Family reports overuse or intoxication Addiction: In Pain Treatment – Preoccupation with obtaining opioids despite the presence of adequate analgesia: – Non-compliance with non-opioid treatment – Failure to keep appts. – Show interest in relief of symptoms, not rehab – Perception that no intervention other than opioids have any effect – Seeks prescriptions from multiple provider – Will not actively address addiction recovery Addiction: In Pain Treatment – Tx of Addictions in Chronic Pain Patients: Often futile if the patient won’t commit to achieving addiction/substance abuse recovery First must confront and overcome denial of substance use disorder Pain impedes detoxification due to hyperalgesia of withdrawal Focus on similarities of between chronic pain and substance use disorders: – Neither is the patient’s fault – Recovery is their responsibility – Both can be managed but not necessarily cured 12-step recovery programs and AA, NA or Chronic Pain Anonymous (CPA) are necessary Opioids in Pain Management Drug Selection: – Mu, Kappa and Delta receptors stimulation results in analgesia Mu receptor stimulants: – Morphine, oxycodone, hydromorphone, meperidine, fentanyl and methadone – Interchangeable Propoxyphene: – Weak Mu agonist, low analgesia, abuse potential Methadone: – Long half-life requires careful titration – **WARNING: Analgesic effect is shorter in duration than CNS respiratory depressive effects: High risk for accidental overdose/death – Primary use in chronic opiate maintenance programs Opioids in Pain Management Drug Selection Continued: – Kappa agonist, Mu antagonist: Pentazocine, nalbuphine, butorphenol – Less potential for abuse and addiction – Ceiling effect in terms of analgesia – Dysphoric reactions common – May precipitate withdrawal in patients of Mu agonist drugs Opioids in Pain Management – Partial Mu receptor agonists: Buprenorphine: – Approved as an alternative to methadone for chronic opiate maintenance Tramadol: – 2nd mechanism of analgesia via 5-HT and NE reuptake inhibition Both with less abuse potential than pure Mu receptor agonists Opioids in Pain Management – Administration Schedules: Serial use of pain scales to titrate doses Marked variability in patient response If pain is constant, use regularly scheduled intervals If pain is chronic or patient has Hx of substance abuse/dependence, avoid PRN administration Opioids in Pain Management – BOUNDARY SETTING WITH SUBSTANCE ABUSERS Written treatment plan – Clear written goals of pain treatment Informed Consent: – Risks, benefits, side effects, alternatives (include over-dosage and withdrawal) Signed Agreement by patient and doctor Identify only one provider and one pharmacy Release of information for all providers Use pills counts and UDS as needed Opioids in Pain Management – BOUNDARY SETTING WITH SUBSTNACE ABUSERS – continued: Establish mechanism for all refills (Avoid PRNs) Exclusion of any early renewals/refills regardless of reason Set intervals for f/u appts. Establish conditions under which treatment will be continued or discontinued Violations may result in termination of treatment and patient given a short tapering dose supply Opioids in Pain Management BOUNDARY SETTING FOR PHYSICIANS – Accept that pain management is extremely difficult for the patient and for you. Never state or imply that pain is “all in your head” Acknowledge that pain and suffering are real Pain causes true suffering and makes the person irritable or even angry – Listen and keep communications calm, direct and professional Don’t be bullied Confront inappropriate statements or behaviors – Acute pain should be treated and often does require opiates temporarily Opioids in Pain Management BOUNDARY SETTING FOR PHYSICIANS – Don’t be pressured into chronic opiate prescribing as the only solution – PAIN HAS TO MAKE SENSE! Yet, appreciate that there are marked individual variations in the experience of pain: – Pain threshold – Pain intensity – Pain tolerance – BE ABLE TO SAY “NO” Prescribe only within your comfort level Don’t prescribe narcotics or benzodiazepines unless you determine that they are necessary! Opioids in Pain Management BOUNDARY SETTING – FOR Physicians – **Remember that increase opioid doses are needed for progression of underlying disease (e.g., cancer) but not for stable disease or Tx of painful tissue pathology – When a patient refuses what you recommend, this does not mean that you are required to give them something you do not feel is necessary or may be inappropriate Practical Issues in Pain Management – Barriers to Effective Management Inadequate assessment: – KNOW WHAT YOU ARE TREATING! Fear of scrutiny from peer medical clinicians: Fear of being scammed by a drug seeker Fear of regulatory agencies – Reports to medical boards, malpractice allegations Fear of producing addiction Fear of not adequately treating pain Inadequate documentation: – DOCUMENT, DOCUMENT, DOCUMENT! Practical Issues in Pain Management Unconscious biases: – Hispanics with fractures are 2X as likely to receive no pain meds – African Americans are more likely to receive less than adequate Tx of pain – Women and elderly with metastatic cancer are more likely to receive less than adequate analgesia than others. Practical Issues in Pain Management Polypharmacy: – The norm of today in healthcare treatment – High risk for drug-drug interactions – High risk for adverse outcomes including fatality: • Accidental overdose • Intentional overdose – **Use great caution in combining treatment with opiates, benzodiazepines and other psychotropic or CNS medications! Abuse of Prescription Opioids – Drug Abuse Warning Network (DAWN) Continually increasing emergency room reports of heroin and other drugs as well and drug-related deaths Adolescent opiate abuse is rapidly increasing – Potential factors: Over-prescribing due to public/media pressure of physicians to treat pain Increasing use of long acting formulations Abuse of Prescription Opioids – Prescription drug abuse and dependency: *Rapidly increasing illicit prescription drug abuse and drug diversion* Common factor in suicide and accidental drug overdose deaths – Alarming increase in opiate abuse/dependency in adolescents Primary source: **the family medicine cabinet** – Substance abuse in the elderly is most commonly prescription medication abuse Basic Screening Tools – Alcohol: CAGE or AUDIT Cut down, Annoyed, Guilty, Eye opener (CAGE) – Or CAGE AID (Adapted to Include Drugs) Alcohol Use Disorders Identification Test (AUDIT) – 10 questions: • Alcohol consumption • Drinking behavior • Adverse reactions • Alcohol-related problems – PHQ-9: Patient Health Questionnaire – 9 questions + impairment question – Also screen for depression Terminology and Context – Misuse: Incorrect use of a medication – For other than its intended purpose – Taking too little or too much – Taking it too often or for too long – Abuse: (DEA) Use that is inconsistent with the medical or social patterns of the culture Use outside the scope of sound medical practice – Addiction: A primary, chronic, neurobiological disease with Impaired control over use, compulsive use, and continued use despite harm Terminology and Context – APA DSM-IV TR Definitions: Does not use “addiction” Defines Substance Use Disorders: – Abuse, Dependence, Intoxication, Withdrawal – Substance Abuse: – Maladaptive pattern of substance use leading to clinically significant impairment with 1 or more of the following in a 12- mo. period: • Recurrent use resulting in failure to fulfill major role obligations • Recurrent use is situations that are physically hazardous • Recurrent substance-related legal problems • Continued use despite having persistent or recurrent social or interpersonal problems due to use Terminology and Context – Substance Dependence Development of tolerance Characteristic withdrawal syndrome Substance taken in larger amounts over a longer period of time than intended Persistent desire or unsuccessful efforts to reduce/control use A great deal of time spent obtaining, using or withdrawing from effects of the substance Important social, occupational, or recreational activities given up or reduced due to use Use continues despite physical or psychological problems due to use Drug Abuse and Diversion – “Abusability”: I want a new drug! Substance can be extracted or modified to achieve a desired effect Rapid onset of action Short duration of action High potency Highly water soluble Can be smoked, snorted, ingested or injected – Brand name drugs yield a higher street value, especially narcotics/controlled substances Drug Abuse and Diversion – Roles of Physicians: The Four Ds of Malpractice: – DATED: Physician has not kept up with changing standards of practice – DUPED: Physicians who are easily manipulated by substance abusers – DISABLED: Physicians whose judgment is impaired by their own illness or substance abuse – DISHONEST: Physicians (“script doctors”) • Willfully prescribe controlled substances for other than medical purposes • Use their license as a franchise to deal drugs Questions? Thanks for your attention! Jerry L. Dennis, M.D.