• Cinzia Brunelli, Michael I Bennett, Stein Kaasa, Robin Fainsinger, Per Sjgren, Sebastiano Mercadante, Erik T Løhre, Augusto Caraceni, and European Association for Palliative Care (EAPC) Research Network and International Association for the Study of Pain (IASP) Cancer Pain Special Interest Group.
• Palliative Care, Pain Therapy and Rehabilitation Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy European Palliative Care Research Centre (PRC), Department of Cancer Research and Molecular Medicine, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway Academic Unit of Palliative Care, Leeds Institute of Health Sciences, University of Leeds, Leeds, West Yorkshire, UK Cancer Clinic, St. Olavs Hospital, University Hospital of Trondheim, Trondheim, Norway Division of Palliative Care Medicine Department of Oncology, University of Alberta, Edmonton, AB, Canada Section of Palliative Medicine, Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark Anesthesia and Intensive Care & Pain Relief and Palliative Care Unit, la Maddalena Cancer Center, Palermo and University of Palermo, Palermo, Italy.
• Pain. 2014 Dec 1; 155 (12): 2707-2713.

AbstractNeuropathic pain (NP) in cancer patients lacks standards for diagnosis. This study is aimed at reaching consensus on the application of the International Association for the Study of Pain (IASP) special interest group for neuropathic pain (NeuPSIG) criteria to the diagnosis of NP in cancer patients and on the relevance of patient-reported outcome (PRO) descriptors for the screening of NP in this population. An international group of 42 experts was invited to participate in a consensus process through a modified 2-round Internet-based Delphi survey. Relevant topics investigated were: peculiarities of NP in patients with cancer, IASP NeuPSIG diagnostic criteria adaptation and assessment, and standardized PRO assessment for NP screening. Median consensus scores (MED) and interquartile ranges (IQR) were calculated to measure expert consensus after both rounds. Twenty-nine experts answered, and good agreement was found on the statement "the pathophysiology of NP due to cancer can be different from non-cancer NP" (MED=9, IQR=2). Satisfactory consensus was reached for the first 3 NeuPSIG criteria (pain distribution, history, and sensory findings; MEDs⩾8, IQRs⩽3), but not for the fourth one (diagnostic test/imaging; MED=6, IQR=3). Agreement was also reached on clinical examination by soft brush or pin stimulation (MEDs⩾7 and IQRs⩽3) and on the use of PRO descriptors for NP screening (MED=8, IQR=3). Based on the study results, a clinical algorithm for NP diagnostic criteria in cancer patients with pain was proposed. Clinical research on PRO in the screening phase and on the application of the algorithm will be needed to examine their effectiveness in classifying NP in cancer patients.Copyright © 2014 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.

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