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David Stamps CoANA Spring Meeting 4 May, 2013. o PTSD: Post-traumatic stress disorder is a severe anxiety disorder that can develop after exposure to.

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Presentation on theme: "David Stamps CoANA Spring Meeting 4 May, 2013. o PTSD: Post-traumatic stress disorder is a severe anxiety disorder that can develop after exposure to."— Presentation transcript:

1 David Stamps CoANA Spring Meeting 4 May, 2013

2 o PTSD: Post-traumatic stress disorder is a severe anxiety disorder that can develop after exposure to any event that results in psychological traumaanxiety disorderpsychological trauma o DSM: development of characteristic symptoms following exposure to an extreme traumatic stressor involving direct personal experience of an event that involves actual or threatened death or serious injury, or other threat to one's physical integrity; or witnessing an event that involves death, injury, or a threat to the physical integrity of another person; or learning about unexpected or violent death, serious harm, or threat of death or injury experienced by a family member or other close associate (Criterion A1)

3 o Hyperarousal symptoms Difficulty sleeping Irritability/anger outbursts Difficulty concentrating Hypervigilance Exaggerated startle response Hamblen, PhD

4 o Re-experiencing symptoms Recurrent recollections of event Recurrent distressing dreams of event Acting or feeling as if event were occurring Psy distress at cues resembling event Psy reactivity to cues Hamblen, PhD

5 o Avoidance/numbing symptoms Avoiding thoughts/feelings/conversations Activities/places/people that cause reminders Inability to recall part of trauma Decreased interest in activates Estrangement Restricted range of affect Sense of foreshortened future Hamblen, PhD

6 o Early 1990's o Interviews of a representative national sample of 8,098 Americans o Age 15 to 54 years o Lifetime PTSD was 7.8% general population Women (10.4%) Men (5%)

7 o Lifetime PTSD prevalence = 6.8% 9.7% women 3.6% men o Current past year PTSD prevalence = 3.6% 5.2% women 1.8% men Kessler et al, 2005.

8 We never know who our PTSD pts are going to be or what they will look like

9 o No population-based epidemiological studies Studies examined prevalence of PTSD high-risk children; experienced specific traumatic events, such as abuse or natural disasters May have a higher prevalence of PTSD than adults in the general population (2003) – Prevalence of PTSD among adolescents National Survey of Adolescents Household probability sample of 4,023 adolescents between the ages of 12 and 17 DSM-IV criteria for PTSD: Six-month prevalence was estimated to be 3.7% for boys and 6.3% for girls National Center for PTSD

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11 o 20% of exposed women and 8% of exposed men develop PTSD o Trauma most likely to cause development Rape Physical abuse Molestation Threat (weapon) Sudden loss of a loved one Kessler et al. 2005

12 o NCS-R Lifetime prevalence of PTSD = 39% Male combat veterans Male combat vs all other male trauma Higher lifetime PTSD prevalence Greater likelihood of delayed prevalence Greater likelihood of unresolved symptoms Keesler et al 2005

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14 o Postoperative Delirium Acute change in cognition 24 to 72 hours after surgery Decreased ability to focus, sustain, or shift attention Not explained by preexisting/evolving disorder i.e. dementia or psychosis

15 o Emergence Delirium (ED) Psychomotor agitation Ranging from frequent, nonpurposeful movement to overt physical aggressiveness Immediately or shortly after emergence from anesthesia Self-limited, may last from minutes to hours

16 o Postoperative Cognitive Dysfunction  Decline in cognitive functioning that manifests after surgery  Patient must demonstrate new-onset impaired functioning that: ▪ Affects at least 2 cognitive processes ▪ Persisted for at least 2 weeks, ▪ Has been confirmed by some form of objective testing ▪ Accompanies a general medical condition or nervous system dysfunction ▪ Not better explained by the presence of ▪ Delirium, dementia, or amnestic disorder

17 o Emergence Delirium 4.7% to 21.3% of adults after general anesthesia Identified risk factors Preoperative administration of benzodiazepines Untreated postoperative pain PTSD NOT mentioned o Emergence delirium is associated with multiple adverse outcomes Self-extubation, unintended removal of lines/tubes, injury to patient/staff, longer stays PACU Not associated with greater postoperative mortality in a population of mixed ages (unlike postoperative delirium)

18 o Can you devise an anesthetic plan for your PTSD Pt? We’ll build toward this o What research is out there to guide you? Little to none o Can you treat PTSD with anesthesia? Lets address this first

19 o History 2003, a published report demonstrated a reduction in PTSD-associated anxiety by clipping the sympathetic ganglia, via an endoscopic sympathetic block (ESB) at the second thoracic vertebra (T2) Most recently, the first successful use of a stellate ganglion block (SGB) for the treatment of PTSD was reported in 2008. Lipov EG, Joshi JR, Lipov SG, Sanders SE, Siroko MK. Cervical sympathetic blockade in a patient with posttraumatic stress disorder: a case report. Ann Clin Psychiatry. 2008;20:227–228.10

20 o PTSD causes an increase in nerve growth factor (NGF) NGF: protein important part of the development/ survival of nerve cells, especially sensory neurons like those that transmit pain, touch and temperature An elevation in NGF has been linked to episodes that stimulate adrenaline Growth of nerve shoots/sprouts in the brain=increase in norepinephrine levels Lead to the development of pathological states Local anesthetic injected near the stellate ganglion reverses this domino effect by lowering NGF concentration

21 1.Precipitating event, estrogen decrease, nerve trauma, PTSD triggering event 2.NGF increase 3.Retrograde transport of the NGF

22 1.NGF increase in the stellate ganglion 2.Sprouting of the sympathetic fibers distally 3.Increase in the brain norepinephrine

23 1.Stellate ganglion block 2.Reduction of NGF decrease in sprouting, reduction of brain norepinephrine and resolution of symptoms

24 o Study Objective: Report the successful use of stellate ganglion blocks (SGBs) in two patients experiencing symptoms PTSD o The Post-traumatic Stress Disorder Checklist (PCL) 17-item psychometric test commonly used to screen for PTSD o The PCL administered day prior to treatment, to establish a baseline, day after treatment. The PCL was also utilized during follow-up visits to quantify the patient’s symptomotology

25 o 46-year-old Hispanic male recently retired from the military. Symptoms commenced in the first Gulf War following a close-quarters combat event in an Iraqi-held bunker o 10 enemy combatants were killed at close range o Briefly rendered unconscious from an explosion o The patient was not visibly injured in the assault

26 o In the care of a psychiatrist for over one year o Medications Sertraline, quentiapine, trazadone, venlafaxine, and zolpidem Quentiapine was prescribed to control PTSD-related nightmares o Never diagnosed with any type of thought disorder or other psychotic condition o Initial pre-injection PCL score was 76/85 o He recounted that since his trigger event he could not recall a time when he slept for more than 2 to 3 hours

27 o 36 year old white male active duty service member Battle of Fallujah during Operation Iraqi Freedom Engaged in killing enemy combatants at close range exposed to “hundreds” of civilian and combatant dead o In the care of a psychiatrist for 1 year before his SGB o Symptoms included Pronounced anxiety symptoms-shortness of breath, heart palpitations, poor sleep, and nightmares The patient’s anxiety symptoms were in direct response to a triggering event, and do not appear to be related to a co-morbid diagnosis o Medications Mirtazapine, sertraline, and zolpidem o His pre-SGB PCL score was 54/85

28 o Both patients experienced immediate, significant and durable relief as measured by the PCL (score minimum 17, maximum 85) Pt 1: PCL=25, after 7 months PCL=67 Repeat SGB brought PCL to 23, leveled out at 34 Five minutes after SGB “a cloud had lifted” from his mind Global feelings of anxiety 8 out of 10 to a 2 out of 10 Great deal of satisfaction First time since his symptoms started (18 years ago) he was able to sleep for 6 to 7 hours Nightmares diminished in both intensity and frequency

29 o Pt 2: Post- injection PCL score =24 Seven months after SGB, PCL score consistent 24. Patient’s spontaneous comments “I feel at peace” “I’m just starting to be aware of how much anxiety I have been living with” “My mind is not racing” He reports feeling like himself, and no longer feels “like an unpleasant person” His erectile dysfunction resolved when he discontinued medications

30 o In both instances, the pre-treatment score suggested a PTSD diagnosis whereas the post-treatment scores did not o Both patients discontinued all antidepressant and antipsychotic medications while maintaining their improved PCL score

31 o Can you devise an anesthetic plan for your PTSD Pt? We’ll build toward this o What research is out there to guide you? Little to none o Can you treat PTSD with anesthesia? Lets address this first

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33 o Aug 2012 Qualitative study Describe experiences of 3 Army CRNA’s Pts with Traumatic Brain Injury (TBI)/PTSD All pts undergoing general anesthesia All cases post 9/11 CRNA’s observed cases of pts awakening in Delirium (10%) Describe your experiences Thought processes as to why delirium occurs

34 o Emergence Delirium defined by study CRNA’s Pt awakes in violent and thrashing manner Attempts at self extubation, breath holding, IV line displacement, assault on OR staff, the want to flee Behavior could occur at anytime from end of surgery to the end of PACU stay

35 o Five themes emerged Emergence delirium (ED) exists, and to a greater extent in military personnel. ED more prevalent in younger population. TIVA was superior GA for TBI/PTSD pts Talking to pts pre induction and on emergence vital Profound impact of Ketamine

36 1. ED exists and to higher degree in military than general population  All CRNA’s experienced ED in the target population  All have years of civilian experience and do not see this in that population (extent or degree)

37 2. ED more prevalent in younger population  Could be mere fact that young men are more prevalent in targeted population  Older personnel have greater experience and time to develop coping strategies

38 3. TIVA superior to potent inhalational anesthetic  All 3 CRNA’s would preferentially use TIVA for known PTSD/TBI  One says “less than 1% of my TIVA pts have ED”

39 4. Talking preoperatively/during emergence to Pts  All three CRNA’s agreed beneficial to offer reassuring words to pts before induction  Room quite, reorientation upon emergence  Things we all do but with a heightened awareness than our average pt

40 5. Ketamine for PTSD/TBI  Has role in alleviating ED  One CRNA uses 1mg Ketamine per 10mg Propofol and sufenta  Another uses 100mg Ketamine/100mg Propofol induction and then TIVA

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42 o Case Study of USAFA/VA pt with ED 26 Y/O white male for excision lipomas VSS, 70”, 235 lbs Meds Cyclobenzaprine/Gabapentin/Omeprazole/Prazosin/Se rtraline/Trazadone KNDA

43 o Med Hx Tobacco/HTN/GERD/Arthritis PTSD/TBI o Surg Hx Appy/Lipoma Hx of “waking up” during procedure Hx of “combative” wakeup o Anesth plan LMAC

44 o Anesthetic Midazolam2mg/Fentanyl 100Mcg Preop Propofol infusion, 350mg total Total case time 58 min Fast track to ASU as pt appeared to be GTG 1443 shortly after arrival to ASU Pt flashback to Iraq war, not orientated to current date, place, or situation. Taken to PACU for observation

45 o PACU Stay Immediately given 2mg Midazolam Usable to take initial vital signs as pt combative and trying to get out of gurney Asking for location of other soldiers/blood identification Pts escort brought to bedside, 2:1 care, constant reorientation to place/time/situation Back to ASU at 1448

46 o Discharge from SDS center 1622 Orientated to place/time/situation Call back 0955 next day Slept well No recall of ED event or any events that happened after initial midazolam dose preop o Negative impact Time, personnel, danger to self and others

47 o 66 y/o male, ASA III, Prostate Bx o Violent wake-ups last 2 anes (2 OR personnel to ER) o Med Hx: OSA/COPD/CAD/HTN/DM/Bipolar/PTSD o Surg Hx: Cardiac Stent ‘01/Colonoscopy ’12 o Hx of Military assassin/hand to hand combat

48 o Anes plan: Propofol/ketamine heavy sedation 15 min procedure with local most stimulating Load 100mg Propofol/50mg Ketamine, followed by 2-3cc bolus strait Propofol Stopped dosing when local in (10 more minutes) Total 200mg Propofol/50mg Ketamine Fast tracked to ASU, awake, reports “best anes I've had. I don’t feel angry or scared” Pain 0/10, Sao2 99% D/C to home within 1 hr, no ill effects over night, was “out of it for 24 hrs”

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50 o 35 y/o male, ASA II, gang cyst exc right wrist o Discussed anes options: IV Nl surg pref, Lmac not option(per pt), GA o Med Hx:Tobacco/DM type 2/PTSD/Depression o Surg Hx: knee arthroscopy ’09, no A/C o Pt and wife both express concerns about any alternative other than GA (preference)

51 o Pre-op with 2mg Versed/Fentanyl 100mcg o 1402-Induction Propofol 200mg/lidocaine 50mg/Ketamine 50mg. iGel placed (BIS at 20) o 1417-Propofol/Ketamine at 80mcg/kg/min o 1425 BIS at 29 and pt light, increased infusion to 125mcg/kg/min o 1438 infusion off o 1444 surgery complete o 1449 pt extubated, stable, SV, to PACU calm/alert Total Propofol 400mg/Ketamine 100mg

52 o Ketorolac 30mg at end of case o PACU stay uneventful with D/C to home within 1.5 Hrs. Follow up in AM showed no ill effects with high satisfaction with anesthesia

53 o Can you devise an anesthetic plan for your PTSD Pt? We’ll now explore this o What research is out there to guide you? Little to none o Can you treat PTSD with anesthesia? Lets address this first

54 o Comorbidities o Substance abuse o Chronic pain o Psychoactive meds o Anxiety concerns o Cognitive function

55 o Comorbidities Cardiac risk factors (lifestyle factors) HTN/DM/HLP COPD/OSA/GERD/Obesity Depression 36% in PTSD pts 3.5% non PTSD pts PTSD/Depression may share common genetic basis o Substance abuse (veteran study) Tobacco 3X ETOH 5X MJ Medical/Rec Illegal drugs 3X

56 o Chronic pain Encourage Nx staff to educate pt on taking opioids preop Pain eval DOS ASAP o Psychoactive meds Careful consideration of medication list SSRI SNRI MAO’s TCA Alpha antagonists Anticonvulsants/Benzo’s Anitpsychotics

57 o Anxiety considerations Establishing trust and full explanations Avoidance of loud noises Wake pt with verbal stimulus vs touch Elicit and known triggers Elicit known wake-up patterns

58 o Cognitive function PTSD has worse preoperative cognitive function Measures of verbal memory Cognitive function found to be inversely related to PTSD symptoms Retain/learn new info for short period Manipulate the info in meaningful way Produce response based on manipulated info Decreased cognitive reserve (vs overall intelligence) Pts vulnerable to post-op cognitive decline

59 o PTSD NOT a predictor of: Length of hospital stay Readmission rate Certain surgery specific outcomes o PTSD NOT known to exacerbate symptoms Studies limited Only anecdotal cases of surgery exacerbating symptoms when aspects of perioperative exp similar to the pts traumatic experience

60  Preoperative evaluation  Elicit history of PTSD Dx, sleep disturbances/nightmares ▪ Amitriptyline/sertraline  Younger troops much more common than older Vets to have ED  Elicit history of previous anesthetic experiences of ED  Plan care with PACU for this PTSD pt

61  Anesthetic Plan  Regional L/MAC if possible  TIVA for GA ▪ Avoidance of Midazolam ▪ Propofol/ketamine mix ▪ Adequate pain control; especially as many are chronic pain pts ▪ Consider NSAID and long acting opioid ie: morphine ▪ Consider an alpha 2 agonist (dexmetatomidine) ▪ Decreases sympathetic tone/cascade ▪ Awake with verbal stimulus/avoid touching head for stimulus

62  One-on-one care if possible  Quiet, non-stimulating environment(good luck)  Family in PACU if possible  Frequent reorientation  Consider avoidance of midazolam for emergence delirium  Tends to make pts worse or have no effect

63 o Developing Anesthesia as Post Traumatic Stress Disorder (PTSD) Therapy o Southern California Institute for Research and Education o National Institute of Mental Health (NIMH) National Institute of Mental Health (NIMH) Purpose This preclinical phase 1 development study in healthy volunteers seeks to identify if low doses of commonly used non- triggering anesthetic agents might have clinical utility for modulating emotional memory processing and to understand the nature of the brain mechanisms of drug action. Optimally, a drug, dose and brain mechanism of action will be identified that will form the foundation for future use in clinical studies of patients with PTSD Drug: Dexmedetomidine Drug: Propofol Drug: Ketamine Drug: Nitrous Oxide A low dose of medication is used during scanning after dose piloting outside the scanner for memory effects and tolerability

64 o Ketamine as a Rapid Treatment for Post- traumatic Stress Disorder (PTSD) (KetPTSD) o Dennis Charney o Collaborator: Department of Defense Purpose The objective of the proposed study is to test if a single IV dose of ketamine (0.5 mg/kg) decreases symptoms of PTSD

65 o Modafinil in the Treatment of PTSD (Posttraumatic Stress Disorder) o Biomedical Research Foundation o National Center for Research Resources (NCRR) National Center for Research Resources (NCRR) o National Institute of General Medical Sciences (NIGMS) National Institute of General Medical Sciences (NIGMS) o The purpose of this study is to determine if modafinil is more effective than placebo in the treatment of posttraumatic stress disorder (PTSD) in male combat veterans who have been deployed to Iraq or Afghanistan

66 o Eszopiclone for the Treatment of Posttraumatic Stress Disorder o Rush University Medical Center o National Institute of Mental Health (NIMH) National Institute of Mental Health (NIMH) o The purpose of this study is to determine if eszopiclone relative to placebo (sugar pill) is effective and tolerable for people with posttraumatic stress disorder (PTSD)- related sleep disturbance. The investigators will also examine the impact of treatment on sleep patterns, memory recall bias, and level of inflammatory markers (cytokines). The investigators predict eszopiclone will lead to greater improvement than placebo in measures of PTSD symptoms, memory recall bias, and level of inflammatory markers

67 o J $100M PTSD and TBI Study o In a press release from September 19, 2012, the VA and DoD announced they are investing more than $100 million in research to improve diag­nosis and treatment of mild traumatic brain injury (mTBI) and (PTSD) o “At VA, ensuring that our veterans receive quality care is our highest pri­ority,” said Secretary of Veterans Af­fairs Eric K. Shinseki. “Investing in innovative research that will lead to treatments for PTSD and TBI is criti­cal to providing the care our veterans have earned and deserve.”

68 o An executive order, signed by the President on August 31, 2012, was designed to improve access to mental health services for our veterans, ser­vice members, and military families. In that order, the President directed the DoD, the VA, HHS, and the De­partment of Education to develop a National Research Action Plan that will include strategies to improve early diagnosis and treatment effec­ tiveness for TBI and PTSD

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