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Infra-red image with pain without a known substrate. on the left side.

In this volume until January 2014 six publications will appear about research done in 1982-1986 including discussion and evaluation based on progressing insight from 1986 up till now. The background of publication is made by the realization that many patients who cooperated to the research can expect something back for their cooperation. Preferably by the regular and modern media but if that is not possible then only by this virtual way which did not exist yet in 1981-1986. These publications provide statistically tested conclusions indicating that chronic pain is not a subjective, elusive phenomenon as was and is always thought. The reason for publication on this site is partly situated in the circumstances that 25 years of research is seen as “obsolete”and not relevant (anymore) and as a result of this can hardly published in the traditional media anymore. Also the judging criteria for research to be developed have been tightened. Legal standards on how to deal with test persons and the written reporting have been drastically changed. Furthermore commercial aspects of the media and interest in “quotation indexes”play a role. Yet the results of the research are sufficiently interesting, still medically and socially relevant to be published. May the reader appreciate the value.

Research results:

  1. Chronic pain spots have a significantly lower temperature than their healthy reference points. P<=0.001.
  2. Abdominal pain may be related to processes that occur or occurred in the abdominal organs. Visceral-cutaneous reflex ways exist in human in vivo. P<=0.001
  3. There is a correlation between pain sensations and found infra-red thermographically measurement information. P<=0.001 Correlation degree 0.69
  4. Infra-red video-thermography is a very sensitive diagnostic method (up to physiological level).
  5. There is a slight indication that the pain spots are being influenced by the effect of prostaglandins, at which the different NSAIDs do not have a similar effect on the pain spots.
  6. Pentoxiphylline has a significantly positive effect on both cold and hot pain spots. P<=0.001

Veen PHE van der, Martens EP. Viscerocutaneous reflexes with abdominal wall pain: A study conducted in 1981 on pregnant women from a general practice. Thermography international. 2013;23(2): 56-63 Available at:

Veen PHE van der. Visceral-cutaneous reflexes in relation to abdominal and pelvic pain. A study from 1982 in females with IUD insertions. Thermography international. 2013;23(3): 87-92 Available at: http://

Veen PHE van der. Infrared thermography for pain influenced by a Xanthine derivative: An attempt to assess chronic pain objectively. Thermology international Vol 24 (2014), No. 2: 39-48 Available at:

Abdominal Wall Pain: Veen PHE van der. Effects of Placebo Measured by Infrared Thermography. Thermology international 2014, 24(4) 157-165 Available at:

Veen PHE van der. A theoretical model of biochemical control engineering based on the relation between oestrogens/progestagens and prostaglandins. Medical Hypotheses 84 (2015), pp. 557-569 DOI information: 10.1016/j.mehy.2015.02.021

Veen PHE van der. CRPS A contingent hypothesis with prostaglandins as crucial conversion factor. Medical Hypotheses. 85 (2015) 568-575. DOI information: 2012-May-14

P.H.E. van der Veen.

Translation: Annemarie Hoogervorst.

Published on 28/10/2016 by Henk