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Waisman A, Kleiman V, Slepian PM, Clarke H, Katz J. Autobiographical memory predicts postsurgical pain up to 12 months after major surgery. Pain. Published online April 1, 2022. doi:10.1097/j.pain.0000000000002645

Katz J, Pagé MG, Weinrib A, Clarke H. Identification of risk and protective factors in the transition from acute to chronic post surgical pain. In: Clinical Pain Management. John Wiley & Sons, Ltd; 2022:50-59. doi:10.1002/9781119701170.ch5

Hanley C, Ladha KS, Clarke HA, Cuthbertson BC, Wijeysundera DN. Association of postoperative complications with persistent post-surgical pain: a multicentre prospective cohort study. British Journal of Anaesthesia. 2022;128(2):311-320. doi:10.1016/j.bja.2021.10.027

Ladak SSJ, Sapisochin G, Slepian PM, Clarke H. The intersection of harm reduction and postoperative care for an illicit fentanyl consumer after major surgery: A case report. Canadian Journal of Pain. 2021;5(1):166-171. doi:10.1080/24740527.2021.1952066


Liu CW, Page MG, Weinrib A, Wong D, Huang A, McRae K, Fiorellino J, Tamir D, Kahn M, Katznelson R, Ladha K, Abdallah F, Cypel M, Yasufuku K, Chan V, Parry M, Khan J, Katz J, Clarke H. Predictors of one year chronic post-surgical pain trajectories following thoracic surgery. Journal of Anesthesia. 2021;35(4):505-514. doi:10.1007/s00540-021-02943-7


Aternali A, Slepian PM, Clarke H, et al. Presurgical distress about bodily sensations predicts chronic postsurgical pain intensity and disability 6 months after cardiothoracic surgery. PAIN. 2022;163(1):159-169. doi:10.1097/j.pain.0000000000002325

Bhatia A, Kara J, Janmohamed T, Prabhu A, Lebovic G, Katz J, Clarke H. User Engagement and Clinical Impact of the Manage My Pain App in Patients With Chronic Pain: A Real-World, Multi-site Trial. JMIR mHealth and uHealth. 2021;9(3):e26528. doi:10.2196/26528

Kojic K, Clarke H. Important considerations with respect to reducing the transition from acute to persistent postoperative pain. Expert Opinion on Pharmacotherapy. 2021;0(0):1-4. doi:10.1080/14656566.2021.1892073

Clarke HA, Manoo V, Pearsall EA, Goel A, Feinberg A, Weinrib A, Chiu JC, Shah B, Ladak SSJ, Ward S, Srikandarajah S, Brar SS, McLeod RS. Consensus Statement for the Prescription of Pain Medication at Discharge after Elective Adult Surgery. Canadian Journal of Pain. 2020;4(1):67-85. doi:10.1080/24740527.2020.1724775


Clarke H, Weinrib A, Kotteeswaran Y, Katz J, Yu A, Tanguay R. Remote buprenorphine-naloxone initiation as an essential service for people with chronic pain and opioid dependence during the COVID-19 pandemic: Case reports, clinical pathways, and implications for the future. Canadian Journal of Pain. 2020;4(1):224-235. doi:10.1080/24740527.2020.1795634


Diep C, Wong D, Wijeysundera DN, Katz J, Clarke HA, Ladha KS. The association between patient-reported pain scores and physical activity in the postoperative period: A prospective observational study. Journal of Clinical Anesthesia. 2020;66:109916. doi:10.1016/j.jclinane.2020.109916


Khan JS, Ladha KS, Abdallah F, Clarke H. Treating Persistent Pain After Breast Cancer Surgery. Drugs. 2020;80(1):23-31. doi:10.1007/s40265-019-01227-5


Mikhaeil J, Ayoo K, Clarke H, Wąsowicz M, Huang A. Review of the Transitional Pain Service as a method of postoperative opioid weaning and a service aimed at minimizing the risk of chronic post-surgical pain. Anaesthesiology Intensive Therapy. 2020;52(2):148-153. doi:10.5114/ait.2020.96018


Slepian PM, Peng M, Janmohamed T, Kotteeswaran Y, Manoo V, McLaren Blades A, Fiorellino J, Katznelson R, Tamir D, McRae K, Kahn M, Huang A, Kona S, Thaker S, Weinrib A, Katz J, Clarke H. Engagement with Manage My Pain mobile health application among patients at the Transitional Pain Service. Digital Health. 2020;6:2055207620962297. doi:10.1177/2055207620962297


Behman R, Cleary S, McHardy P, Kiss A, Sawyer J, Ladak SSJ, McCluskey SA, Srinivas C, Katz J, Coburn N, Law C, Wei AC, Greig P, Hallet J, Clarke H, Karanicolas PJ. Predictors of Post-operative Pain and Opioid Consumption in Patients Undergoing Liver Surgery. World J Surg. 2019;43(10):2579-2586. doi:10.1007/s00268-019-05050-7


Clarke H, Ladha K. Time for accountability and change: institutional gaps in pain care during the opioid crisis. British Journal of Anaesthesia. 2019;122(6):e90-e93. doi:10.1016/j.bja.2019.02.015


Katz J, Weinrib AZ, Clarke H. Chronic postsurgical pain: From risk factor identification to multidisciplinary management at the Toronto General Hospital Transitional Pain Service. Canadian Journal of Pain. 2019;3(2):49-58. doi:10.1080/24740527.2019.1574537


McGillion MH, Henry S, Busse JW, Ouellette C, Katz J, Choinière M, Lamy A, Whitlock R, Pettit S, Hare J, Gregus K, Brady K, Dvirnik N, Yang SS, Parlow J, Dumerton-Shore D, Gilron I, Buckley DN, Shanthanna H, Carroll SL, Coyte PC, Ebrahim S, Isaranuwatchai W, Guerriere DN, Hoch J, Khan J, MacDermid J, Martorella G, Victor JC, Watt-Watson J, Howard-Quijano K, Mahajan A, Chan MTV, Clarke H, Devereaux PJ. Examination of psychological risk factors for chronic pain following cardiac surgery: protocol for a prospective observational study. BMJ Open. 2019;9(2):e022995. doi:10.1136/bmjopen-2018-022995


Mikhaeil J, Huang A, Clarke H, Wasowicz M. 19 A tale of ill-managed pain and the opioid epidemic. BMJ Evidence-Based Medicine. 2019;24(Suppl 1):A51-A51. doi:10.1136/bmjebm-2019-EBMLive.100


Pagé MG, Karanicolas PJ, Cleary S, Wei AC, McHardy P, Ladak SSJ, Ayach N, Sawyer J, McCluskey SA, Srinivas C, Katz J, Coburn N, Hallet J, Law C, Greig P, Clarke H. In-hospital opioid consumption, but not pain intensity scores, predicts 6-month levels of pain catastrophizing following hepatic resection: A trajectory analysis. European Journal of Pain. 2019;23(3):503-514. doi:


Rahman QA, Janmohamed T, Clarke H, Ritvo P, Heffernan J, Katz J. Interpretability and Class Imbalance in Prediction Models for Pain Volatility in Manage My Pain App Users: Analysis Using Feature Selection and Majority Voting Methods. JMIR Medical Informatics. 2019;7(4):e15601. doi:10.2196/15601


Weinrib A, Azam MA, Latman VV, Janmohamed T, Clarke H, Katz J. Manage My Pain: A Patient-Driven Mobile Platform to Prevent and Manage Chronic Postsurgical Pain. Novel Applications of Virtual Communities in Healthcare Settings. In El Morr, C. (Ed.), (pp. 93-126) IGI Global. 2018. doi:10.4018/978-1-5225-2958-3.ch004


Clarke H, Azargive S, Montbriand J, Nicholls J, Sutherland A, Valeeva L, Boulis S, McMillan K, Ladak SSJ, Ladha K, Katznelson R, McRae K, Tamir D, Lyn S, Huang A, Weinrib A, Katz J. Opioid weaning and pain management in postsurgical patients at the Toronto General Hospital Transitional Pain Service. Canadian Journal of Pain. 2018;2(1):236-247. doi:10.1080/24740527.2018.1501669


Montbriand JJ, Weinrib AZ, Azam MA, Ladak SSJ, Shah BR, Jiang J, McRae K, Tamir D, Lyn S, Katznelson R, Clarke HA, Katz J. Smoking, Pain Intensity, and Opioid Consumption 1–3 Months After Major Surgery: A Retrospective Study in a Hospital-Based Transitional Pain Service. Nicotine & Tobacco Research. 2018;20(9):1144-1151. doi:10.1093/ntr/ntx094


Nicholls JL, Azam MA, Burns LC, Englesakis M, Sutherland AM, Weinrib AZ, Katz J, Clarke H. Psychological treatments for the management of postsurgical pain: a systematic review of randomized controlled trials. PROM. 2018;9:49-64. doi:10.2147/PROM.S121251

Sutherland AM, Nicholls J, Bao J, Clarke H. Overlaps in pharmacology for the treatment of chronic pain and mental health disorders. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 2018;87:290-297. doi:10.1016/j.pnpbp.2018.07.017


Azam MA, Weinrib AZ, Montbriand J, Burns LC, McMillan K, Clarke H, Katz J. Acceptance and Commitment Therapy to manage pain and opioid use after major surgery: Preliminary outcomes from the Toronto General Hospital Transitional Pain Service. Canadian Journal of Pain. 2017;1(1):37-49. doi:10.1080/24740527.2017.1325317


Mu A, Weinberg E, Moulin DE, Clarke H. Pharmacologic management of chronic neuropathic pain: Review of the Canadian Pain Society consensus statement. Canadian Family Physician. 2017;63(11):844-852. Link


Weinrib AZ, Azam MA, Birnie KA, Burns LC, Clarke H, Katz J. The psychology of chronic post-surgical pain: new frontiers in risk factor identification, prevention and management. British Journal of Pain. 2017;11(4):169-177. doi:10.1177/2049463717720636

Weinrib AZ, Burns LC, Mu A, Azam MA, Ladak SSJ, McRae K, Katznelson R, Azargive S, Tran C, Katz J, Clarke H. A case report on the treatment of complex chronic pain and opioid dependence by a multidisciplinary transitional pain service using the ACT Matrix and buprenorphine/naloxone. Journal of Pain Research. 2017;10:747-755. doi:10.2147/JPR.S124566

Clarke H. Transitional Pain Medicine: novel pharmacological treatments for the management of moderate to severe postsurgical pain. Expert Review of Clinical Pharmacology. 2016;9(3):345-349. doi:10.1586/17512433.2016.1129896

Huang A, Azam A, Segal S, Pivovarov K, Katznelson G, Ladak SS, Mu A, Weinrib A, Katz J, Clarke H. Chronic postsurgical pain and persistent opioid use following surgery: the need for a transitional pain service. Pain Management. 2016;6(5):435-443. doi:10.2217/pmt-2016-0004


Meng H, Hanlon JG, Katznelson R, Ghanekar A, McGilvray I, Clarke H. The prescription of medical cannabis by a transitional pain service to wean a patient with complex pain from opioid use following liver transplantation: a case report. Can J Anesth/J Can Anesth. 2016;63(3):307-310. doi:10.1007/s12630-015-0525-6


Soneji N, Clarke HA, Ko DT, Wijeysundera DN. Risks of Developing Persistent Opioid Use After Major Surgery. JAMA Surgery. 2016;151(11):1083-1084. doi:10.1001/jamasurg.2016.1681


Clarke H, Poon M, Weinrib A, Katznelson R, Wentlandt K, Katz J. Preventive Analgesia and Novel Strategies for the Prevention of Chronic Post-Surgical Pain. Drugs. 2015;75(4):339-351. doi:10.1007/s40265-015-0365-2


Katz J, Weinrib A, Fashler SR, Katznelzon R, Shah BR, Ladak SS, Jiang J, Li Q, McMillan K, Mina DS, Wentlandt K, McRae K, Tamir D, Lyn S, de Perrot M, Rao V, Grant D, Roche-Nagle G, Cleary SP, Hofer SO, Gilbert R, Wijeysundera D, Ritvo P, Janmohamed T, O’Leary G, Clarke H. The Toronto General Hospital Transitional Pain Service: development and implementation of a multidisciplinary program to prevent chronic postsurgical pain. J Pain Res. 2015;8:695-702. doi:10.2147/JPR.S91924

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