Canadian Research




June 2017: Please monitor this space for upcoming Canadian research. 




Development of a perfusion MRI technique to investigate longitudinal effects of chronic pain on brain function

"The aim of this study is to find a tool for evaluation of treatment success in CRPS patients, Magnetic resonance imaging (MRI) is a diagnostic tool in medicine that generates high quality imaging of the human body without the use of x-rays. It can also provide information regarding how the brain functions, which is referred to as functional magnetic resonance imaging (fMRI). Changes in brain function during the course of treatment will be studied to investigate how such changes can reflect the success of treatment."

Research is done at Lawson Institute at St. Joe's Hospital in London Ontario. Participants will be reimbursed. For details, please email:

Mahsa Shokouhi PhD Principal Investigator

This research has been completed. Thanks to all who took part.



"Defining Recovery from CRPS: a patients perspective"

McCabe CS RGN PhD et al

Royal Hospital for Rheumatic Diseases, Bath UK


UPDATE MAY 2017 : In July 2012, the CRPS Recovery Team met in Bath, UK to design a research paper on CRPS Recovery.The team consisted of doctors, researchers, scientists and patient research partners (PRPs) who continue to collaborate up to the present day. Our goal was to find out how and why patients recovered.

We used the Delphi method  consisting of two rounds of questionnaires which formed the basis of the research. Questionnaires were "forward  translated" into Dutch, Danish, Polish,German and several other languages for completion by patients in 8 countries. Responses were "back translated" into English.  The basic question was "Are you recovered?" The second round of questionnaires recorded all responses and patients were asked to rank them in order of importance. Responses were rated in percentages.

PARC's Executive Director was honoured to be a member of this International CRPS Recovery team. 

Dr. McCabe authored the first study and Alison Lewellyn PhD authored the second one. Both research papers have been published.

We are currently collaborating on another paper for the European Journal of Pain in 2017.


Hamilton Inventory for CRPS.

PARC was pleased to sponsor our first local Canadian study!

Please note: this research below has been completed. Special thanks to all who participated.


Hamilton CRPS Research 2012-13

A research team from Hamilton Health Sciences and McMaster University are developing an assessment tool that is specific to complex regional pain syndrome. One part of the assessment was a questionnaire that asked the person to rate their own symptoms and the impact those symptoms had on their daily activities and relationships. We also interviewed people who have experienced CRPS to assist us in this process.

Tara Packham, OT Reg.(Ont), MSc

Occupational Therapist
Hamilton Health Sciences

Dr. Joy MacDermid, PT, PhD
Physiotherapist and Associate Professor
School of Rehabilitation Sciences, McMaster University

[This work was conducted with support from PARC: Promoting Awareness of RSD/CRPS.]


Update October 2012

Brain changes in CRPS are becoming well known. The European Journal of Pain 2012 has recently published a study done by Jenny Lewis PhD of Bath, UK entitled "Body Perception Disturbance."


SEPT./OCT. 2011

PARC was able to donate a further $5,000 to Mc Gill University to assist the NIRS studies at Montreal General Hospital. The NIRS machine (laser) will be travelling to San Diego, CA this winter to a busy pain clinic of CRPS patients at UCSD where space and research personnel have been donated. Many thanks to the dedicated Dr. Bennett who will travel and resume the study in California. PARC's contribution will help make this happen. Please read about the NIRS study below.



Dr. Terrence Corderre (left) and Dr Gary Bennett (right), of Mc Gill University shown with the near-infrared spectrophotometer (NIRS) that was purchased with the help of PARC, Great West Life Assurance Company, and the family of Mr. Jeffrey Owens. The NIRS machine has the unique ability to measure blood flow and oxygenation in muscles non-invasively and painlessly via a laser light source and light sensor placed on the skin over the muscle. Drs. Bennett and Corderre are using the machine to test their theory that at least CRPS patients have pain due to an injury to the capillary blood vessels in a muscle.


PARC NOTE: With your help, PARC can continue to support the research of these excellent scientists at Mc Gill.





"Objectifying CRPS": Coderre and Bennett

"Chronic Post-Ischemic Pain":

Coderre et al.pdf

This is only a partial list of research papers.


Gary J. Bennett, Ph.D., is Canada Senior Research Chair, Department of Anesthesia and Faculty of Dentistry, McGill University in Montreal, Canada. He earned his bachelor’s degree (Psychology) in 1970 from Rutgers University and his Ph.D. (Experimental Psychology) from the Medical College of Virginia, Virginia Commonwealth University in 1978. In the same year, he joined the Neurobiology and Anesthesiology Branch (NAB), National Institute of Dental Research, National Institutes of Health, as a Public Health Service Postdoctoral Fellow. He was appointed to the permanent staff of NAB in 1979, and was made Chief of the Neuropathic Pain and Pain Measurement Section in 1991. In 1996, he became Professor in the Department of Neurology at MCP Hahnemann University in Philadelphia. He joined McGill University in 2001.
He has served on the American Pain Society’s Board of Directors and on the Editorial Board for Pain (1986-1999), the journal of the International Association for the Study of Pain, and currently serves on the Editorial Board for Pain Medicine, the journal of the American Academy of Pain Medicine. He has served on the Board of Directors of the Reflex Sympathetic Dystrophy Syndrome Association of America, where he was Director of Research, and received their Scientific Achievement Award in 2000. He was awarded the American Pain Society’s Frederick W.L. Kerr Basic Science Research Award in 1996, and the American Academy of Pain Medicine’s Founder’s Award in 2001. For the past 25 years, his research has focused on the mechanisms underlying normal and abnormal pain sensations, and the pharmacological basis of pain control.

Dr.Bennett now resides in San Diego,USA and is CEO of Biointervene, a pharmaceutical preparations company. He is also Adjunct Professor at UCSD.

For further biography details please see International Research Consortium.

Click here to read a Q&A session with Dr. Gary J. Bennett, PhD from a November 2, 2016 chat presented by PARC in association with IRC (International Research Consortium) and RSDSA



PARC was able to donate $10,000 towards CRPS research at Mc Gill. Please see the photo at the top of this page for details.


UPDATE: December 2008

Due to the RIDE TO CONQUER CRPS 2008 and the fine efforts of Dr D.L. Shulman, PARC was able to donate $5,000 towards CRPS research. We urge all of you who are interested in finding a cure for CRPS, to support the research being done at McGill.

RESEARCH UPDATE: Aug. 22, 2008:

Dr G. Bennett,PhD, Sr. Research Chair, McGill University, and Montreal General Hospital will be holding a conference in conjunction with:

RIDE TO CONQUER CRPS 2008 on July 28.

JULY 28 details.

UPDATE: FEB 2007: Astra Zeneca has donated $2.5 million to a new lab at McGill University. Dr Magali Millecamps is the post doctoral fellow studying CRPS under the supervision of Dr Gary Bennett and Terry Cordere. Our hats are off to these dedicated researchers.

For more on McGill University please visit: McGill Pain Research 




Complex Regional Pain Syndrome Type I (RSD):

New data from the clinic and the laboratory.

A Pain Forum presentation of the MUHC Pain Center

DATE: Monday, 28 July 2008
TIME: 1:00-4:30 PM
PLACE: Livingston Hall Lounge (Room L6-500)
Montreal General Hospital



1:00-1:05 Welcoming remarks (Gary J. Bennett, PhD; McGill University)

1:05-1:45 CRPS-I: The clinical picture. (David L. Shulman, MD CCFP FCFP DAAPM; Rothbart Pain Clinic, Toronto) RIDE TO CONQUER CRPS 2008 STOP

1:45 -2:45 A new theory: Deep tissue microvascular pathology as the cause of CRPS-I. (Terence J. Coderre, PhD; McGill University)

2:45-3:00 Health break

3:00-3:30 The role of the endothelins in CPIP pathology (Magali. Millecamps, PhD, McGill University)

3:30-4:00 CRPS-I breakthroughs: New data from Boston and Haifa (G. Bennett, PhD)

4:00-4:30 Discussion

4:30 Adjourn

Many thanks to Gary Bennett PhD and colleagues for hosting the successful and very informative CRPS conference on July 28 at Montreal General Hospital.

Why is CRPS research important?!

BULLETIN: New research has found markers for CRPS. From Boston, a skin biopsy can now detect distal nerve damage. From Haifa Israel, a saliva test can measure high levels of LDH (lactate dehyrogenase), the same substance found in heart attack victims. It also found high levels of albumin.

DUTCH RESEARCH: In a database of 900,000 patients from 150 GPs in Holland, (specifically patients who attend a doctor), the rate of occurrence has been established as 26.2 in 100,000 patients.This is approximately 1 in every 4,000 people.


UPDATE 2017: For updated research projects at McGill University please follow this link:

McGill Pain Research 



McGill University is known around the world for its pain research.

First of all, the research being conducted will help the researchers better understand the "puzzle of CRPS/RSD", what causes it, and how it works in the body.

Secondly, the scientific knowledge gained from these studies will lead to the development of better treatments for this painful, neurological syndrome. New treatments are desperately needed.

MORE IMPORTANTLY,CRPS patients living in Canada will benefit from new treatments first.

Thirdly, the researcher in question, Dr Bennett, has a great deal of experience studying and testing patients since he has already conducted quality CRPS/RSD research for over 25 years in United States.

Lastly, doing something NOW that will benefit you later, should be considered as a very good reason to help this excellent researcher gather his data.

PARC urges all Canadians to participate and we plan to offer ourselves as subjects. What about you?




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