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Moderate to severe postoperative pain is relatively common after major abdominal surgery. It is associated with less than optimal surgical experience, poor quality of recovery, and the development of persistent postsurgical pain. Opioids remain a significant component of postoperative pain management. Side effects of opioids used for the treatment of postoperative pain include constipation, pruritus, nausea, and vomiting. Enhanced recovery after surgery (ERAS) protocols involve the utilization of multimodal analgesia. Analgesic techniques used include epidural analgesia, nerve blocks, and Intrathecal (IT) administration of morph ne. IT morphine reduces the postoperative opioid requirement for 18-24 hours after major abdominal surgery and reduces hospital length of stay (LOS) compared with epidural analgesia. A significant number of patients who receive IT morphine still experience moderate to severe postoperative p in. Additionally, many patients refuse the invasive procedure or cannot receive IT morphine due to procedure contraindications, thrombocytopenia, and/or coagulopathy.
Intravenous (IV) methadone has a long analgesic half-life and has N-methyl-D-aspartate (NMDA) receptor antagonist and serotonin and norepinephrine reuptake inhibitor (SNRI) properties. It has previously been shown to reduce postoperative opioid requirements, postoperative nausea and vomiting (PONV), and postoperative pain scores in patients who underwent orthopedic, abdominal, complex spine, and cardiac surg ry. Similar findings have been shown in obstetric patients who underwent cesarean delivery under general anesthesia as well as patients who underwent gynecologic surgery. IV methadone has, however, never been compared with IT morphine as a postoperative analgesic.
The hypothesis is that intravenous (IV) methadone is non-inferior to IT morphine in patients who undergo major abdominal surg ry. It offers the advantage of being a noninvasive analgesic modality that may contribute to decreasing opioid consumption during the first 72 hours postoperatively, controlling postoperative pain, and improving the quality of recovery after surgery.
Moderate to severe postoperative pain is relatively common after major abdominal surgery. It is associated with less than optimal surgical experience, poor quality of recovery, and the development of persistent postsurgical pain. Opioids remain a significant component of postoperative pain management. Side effects of opioids used for the treatment of postoperative pain include constipation, pruritus, nausea, and vomiting. Enhanced recovery after surgery (ERAS) protocols involve the utilization of multimodal analgesia. Analgesic techniques used include epidural analgesia, nerve blocks, and Intrathecal (IT) administration of morph ne. IT morphine reduces the postoperative opioid requirement for 18-24 hours after major abdominal surgery and reduces hospital length of stay (LOS) compared with epidural analgesia. A significant number of patients who receive IT morphine still experience moderate to severe postoperative p in. Additionally, many patients refuse the invasive procedure or cannot receive IT morphine due to procedure contraindications, thrombocytopenia, and/or coagulopathy.
Intravenous (IV) methadone has a long analgesic half-life and has N-methyl-D-aspartate (NMDA) receptor antagonist and serotonin and norepinephrine reuptake inhibitor (SNRI) properties. It has previously been shown to reduce postoperative opioid requirements, postoperative nausea and vomiting (PONV), and postoperative pain scores in patients who underwent orthopedic, abdominal, complex spine, and cardiac surg ry. Similar findings have been shown in obstetric patients who underwent cesarean delivery under general anesthesia as well as patients who underwent gynecologic surgery. IV methadone has, however, never been compared with IT morphine as a postoperative analgesic.
The hypothesis is that intravenous (IV) methadone is non-inferior to IT morphine in patients who undergo major abdominal surg ry. It offers the advantage of being a noninvasive analgesic modality that may contribute to decreasing opioid consumption during the first 72 hours postoperatively, controlling postoperative pain, and improving the quality of recovery after surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intrathecal Morphine | Active Comparator | 250 mcg Intrathecal Injection prior to incision |
|
| Intravenous Methadone | Experimental | 0.2 mg / kg Intravenous delivery prior to incision. Maximum dosage will be 20 mg. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Methadone | Drug | Intravenous Methadone |
|
|
| Measure | Description | Time Frame |
|---|---|---|
| Quality of Recovery 15 score | The Quality of Recovery-15 (QoR-15) scale is a patient-reported outcome measurement of the quality of recovery after surgery and anesthesia. The scale ranges from 0 to 150, with a higher score indicating a better quality of recovery. A score of 0 indicates extremely poor quality of recovery, while a score of 150 indicates excellent quality of recovery. The QoR-15 score can be classified into four severity classes: excellent, good, moderate, and poor recovery. | 24 hours, 48 hours, 72 hours, 42 days, 92 days |
| Overall Benefits of Analgesic Score | The overall benefit of analgesic score (OBAS) is a daily survey that assesses a patient's satisfaction with analgesia, pain intensity, and adverse effects. To compute score, add all scores in items 1-7. Range: [0 - 28]. A low score indicates high benefit
| 24 hours, 48 hours, 72 hours, 42 days, 92 days |
| morphine milligram equivalent | morphine milligram equivalent is a measurement of a given analgesic effect standardized to a milligram of morphine. In other words agent X has the same effect as Y milligrams of morphine. | 24 hours, 48 hours, 72 hours |
| Numeric Rating Scale pain scores (NRS) | The numeric rating scale (NRS) is a pain screening tool commonly used to assess pain severity at a given moment in time. It uses a 0-10 scale, with zero meaning "no pain" and 10 meaning "the worst pain imaginable." |
| Measure | Description | Time Frame |
|---|---|---|
| McGill Pain questionnaire score | The McGill Pain Questionnaire (MPQ), also known as the McGill Pain Index, is a self-report questionnaire that helps patients describe the quality and intensity of their pain that assesses three components of pain experience: Sensory intensity, Emotional impact, and Cognitive evaluation of pain. The MPQ consists of 20 categories of verbal descriptors, 78 pain-related descriptors, and six words for current pain intensity. The descriptors fall into four major groups: Sensory: 1 to 10 Affective: 11 to 15 Evaluative: 16 Miscellaneous: 17 to 20 Each descriptor has a rank value based on its position in the word set. The sum of the rank values is the pain rating index (PRI). The maximum pain score is 78, and the higher the score, the greater the pain. The MPQ is valid, reliable, and sensitive for measuring cancer pain. |
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Inclusion Criteria:
Exclusion Criteria:
Not able or unwilling to sign consent
Patients undergoing ambulatory surgery or anticipated to be discharged sooner than 24 hours after surgery
Patients with chronic pain, requiring daily opioid use at the time of surgery, MME >60 as the FDA defines opioid tolerant as 60 MME, long-acting forms of opioids such as fentanyl patch, oxycontin.
Pregnant Women
Patients requiring emergent surgery
Contraindications to neuraxial anesthesia including:
length of the QT interval (QTc) >450 on the most recent preoperative electrocardiogram (EKG)
Prior spinal fusion
Active or Prior Substance Use Disorder, undergoing active treatment with Medication of Opioid Use Disorder including methadone (once daily dosing), Buprenorphine (any formulation) and Naltrexone
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Keita Ikeda, PH.D. | Contact | 9195931174 | ki2d@uvahealth.org | |
| Priyanka Singla, M.D. | Contact | (434) 982-4310 | ps7ey@uvahealth.org |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Virginia | Recruiting | Charlottesville | Virginia | 22908-0710 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 17457133 | Background | Brandsborg B, Nikolajsen L, Hansen CT, Kehlet H, Jensen TS. Risk factors for chronic pain after hysterectomy: a nationwide questionnaire and database study. Anesthesiology. 2007 May;106(5):1003-12. doi: 10.1097/01.anes.0000265161.39932.e8. | |
| 25701935 | Background | Bauchat JR, Habib AS. Evidence-based anesthesia for major gynecologic surgery. Anesthesiol Clin. 2015 Mar;33(1):173-207. doi: 10.1016/j.anclin.2014.11.011. Epub 2014 Dec 31. |
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D010146 | Pain |
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| ID | Term |
|---|---|
| D008691 | Methadone |
| D009020 | Morphine |
| ID | Term |
|---|---|
| D007659 | Ketones |
| D009930 | Organic Chemicals |
| D009022 | Morphine Derivatives |
| D009019 | Morphinans |
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a single blind study
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| Morphine | Drug | Intrathecal Morphine |
|
|
| 24 hours, 48 hours, 72 hours |
| 42 days, 92 days |
| Numeric Rating Pain Score (NRS) | The numeric rating scale (NRS) is a pain screening tool commonly used to assess pain severity at a given moment. It uses a 0-10 scale, with zero meaning "no pain" and 10 meaning "the worst pain imaginable." | 42 days, 92 days |
| 22150410 | Background | Hein A, Rosblad P, Gillis-Haegerstrand C, Schedvins K, Jakobsson J, Dahlgren G. Low dose intrathecal morphine effects on post-hysterectomy pain: a randomized placebo-controlled study. Acta Anaesthesiol Scand. 2012 Jan;56(1):102-9. doi: 10.1111/j.1399-6576.2011.02574.x. |
| 27500337 | Background | Modesitt SC, Sarosiek BM, Trowbridge ER, Redick DL, Shah PM, Thiele RH, Tiouririne M, Hedrick TL. Enhanced Recovery Implementation in Major Gynecologic Surgeries: Effect of Care Standardization. Obstet Gynecol. 2016 Sep;128(3):457-66. doi: 10.1097/AOG.0000000000001555. |
| 29561531 | Background | Horlocker TT, Vandermeuelen E, Kopp SL, Gogarten W, Leffert LR, Benzon HT. Regional Anesthesia in the Patient Receiving Antithrombotic or Thrombolytic Therapy: American Society of Regional Anesthesia and Pain Medicine Evidence-Based Guidelines (Fourth Edition). Reg Anesth Pain Med. 2018 Apr;43(3):263-309. doi: 10.1097/AAP.0000000000000763. No abstract available. |
| 21173206 | Background | Kharasch ED. Intraoperative methadone: rediscovery, reappraisal, and reinvigoration? Anesth Analg. 2011 Jan;112(1):13-6. doi: 10.1213/ANE.0b013e3181fec9a3. No abstract available. |
| 10888415 | Background | Mancini I, Lossignol DA, Body JJ. Opioid switch to oral methadone in cancer pain. Curr Opin Oncol. 2000 Jul;12(4):308-13. doi: 10.1097/00001622-200007000-00006. |
| 668807 | Background | Slotkin TA, Seidler FJ, Whitmore WL. Methadone inhibits serotonin and norephinephrine uptake into rat brain synaptosomes and synaptic vesicles in vitro but not in vivo. Eur J Pharmacol. 1978 Jun 15;49(4):357-62. doi: 10.1016/0014-2999(78)90309-6. |
| 6128949 | Background | Gourlay GK, Wilson PR, Glynn CJ. Pharmacodynamics and pharmacokinetics of methadone during the perioperative period. Anesthesiology. 1982 Dec;57(6):458-67. doi: 10.1097/00000542-198212000-00005. No abstract available. |
| 30323647 | Background | Machado FC, Palmeira CCA, Torres JNL, Vieira JE, Ashmawi HA. Intraoperative use of methadone improves control of postoperative pain in morbidly obese patients: a randomized controlled study. J Pain Res. 2018 Oct 2;11:2123-2129. doi: 10.2147/JPR.S172235. eCollection 2018. |
| 20418538 | Background | Gottschalk A, Durieux ME, Nemergut EC. Intraoperative methadone improves postoperative pain control in patients undergoing complex spine surgery. Anesth Analg. 2011 Jan;112(1):218-23. doi: 10.1213/ANE.0b013e3181d8a095. Epub 2010 Apr 24. |
| 25837528 | Background | Murphy GS, Szokol JW, Avram MJ, Greenberg SB, Marymont JH, Shear T, Parikh KN, Patel SS, Gupta DK. Intraoperative Methadone for the Prevention of Postoperative Pain: A Randomized, Double-blinded Clinical Trial in Cardiac Surgical Patients. Anesthesiology. 2015 May;122(5):1112-22. doi: 10.1097/ALN.0000000000000633. |
| 23219678 | Background | Russell T, Mitchell C, Paech MJ, Pavy T. Efficacy and safety of intraoperative intravenous methadone during general anaesthesia for caesarean delivery: a retrospective case-control study. Int J Obstet Anesth. 2013 Jan;22(1):47-51. doi: 10.1016/j.ijoa.2012.10.007. Epub 2012 Dec 7. |
| 2039637 | Background | Richlin DM, Reuben SS. Postoperative pain control with methadone following lower abdominal surgery. J Clin Anesth. 1991 Mar-Apr;3(2):112-6. doi: 10.1016/0952-8180(91)90007-a. |
| 29661495 | Background | Bergstrom JE, Scott ME, Alimi Y, Yen TT, Hobson D, Machado KK, Tanner EJ 3rd, Fader AN, Temkin SM, Wethington S, Levinson K, Sokolinsky S, Lau B, Stone RL. Narcotics reduction, quality and safety in gynecologic oncology surgery in the first year of enhanced recovery after surgery protocol implementation. Gynecol Oncol. 2018 Jun;149(3):554-559. doi: 10.1016/j.ygyno.2018.04.003. Epub 2018 Apr 13. |
| 19153406 | Background | Krantz MJ, Martin J, Stimmel B, Mehta D, Haigney MC. QTc interval screening in methadone treatment. Ann Intern Med. 2009 Mar 17;150(6):387-95. doi: 10.7326/0003-4819-150-6-200903170-00103. Epub 2009 Jan 19. |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D053610 |
| Opiate Alkaloids |
| D000470 | Alkaloids |
| D006571 | Heterocyclic Compounds |
| D006572 | Heterocyclic Compounds, Bridged-Ring |
| D006576 | Heterocyclic Compounds, 4 or More Rings |
| D000072471 | Heterocyclic Compounds, Fused-Ring |
| D010616 | Phenanthrenes |
| D011084 | Polycyclic Aromatic Hydrocarbons |
| D011083 | Polycyclic Compounds |