PainSci summary of Calandre 2008?This page is one of thousands in the PainScience.com bibliography. It is not a general article: it is focused on a single scientific paper, and it may provide only just enough context for the summary to make sense. Links to other papers and more general information are provided at the bottom of the page, as often as possible. ★★☆☆☆?2-star ratings are for studies with flaws, bias, and/or conflict of interest; published in lesser journals. Ratings are a highly subjective opinion, and subject to revision at any time. If you think this paper has been incorrectly rated, please let me know.
Although this research was “preliminary and uncontrolled” and is not powerful enough to prove anything, its results were certainly noteworthy — the sort of results that can inspire more research, hopefully. All of 12 patients with chronic cluster headaches (a kind of severe primary headache, nicknamed “suicide headaches”) had myofascial trigger points, and treating them (with injection) produced “significant improvement in 7 of the 8 chronic cluster patients.” The authors speculate that trigger points are not the cause of cluster headaches, but a nasty complicating factor: “chronic pain or repeated acute pain sensitize muscular nociceptors creating active trigger points which, in turn, contribute to potentiate headache pain. This kind of vicious cycle explains why the number of active trigger points has been found to be higher in patients with chronic primary headaches than in healthy subjects or in patients experiencing less frequent headache attacks.”
~ Paul Ingraham
original abstract†Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
Active myofascial trigger points (MTrPs) have been found to contribute to chronic tension-type headache and migraine. The purpose of this case series was to examine if active trigger points (TrPs) provoking cluster-type referred pain could be found in cluster headache patients and, if so, to evaluate the effectiveness of active TrPs anaesthetic injections both in the acute and preventive headache's treatment. Twelve patients, 4 experiencing episodic and 8 chronic cluster headache, were studied. TrPs were found in all of them. Abortive infiltrations could be done in 2 episodic and 4 chronic patients, and preemptive infiltrations could be done in 2 episodic and 5 chronic patients, both kind of interventions being successful in 5 (83.3%) and in 6 (85.7%) of the cases respectively. When combined with prophylactic drug therapy, injections were associated with significant improvement in 7 of the 8 chronic cluster patients. Our data suggest that peripheral sensitization may play a role in cluster headache pathophysiology and that first neuron afferent blockade can be useful in cluster headache management.
- “Myofascial trigger points in subjects presenting with mechanical neck pain: A blinded, controlled study,” an article in Manual Therapy, 2007.
- “Myofascial trigger points and their relationship to headache clinical parameters in chronic tension-type headache,” an article in Headache, 2006.
- “Myofascial trigger points in migraine and tension-type headache,” an article in J Headache Pain, 2018.
These three articles on PainScience.com cite Calandre 2008 as a source:
- PS Massage Therapy for Tension Headaches — Perfect Spot No. 1, in the suboccipital muscles of the neck, under the back of the skull.
- PS Trigger Points & Myofascial Pain Syndrome — A guide to the unfinished science of muscle pain, with reviews of every theory and self-treatment and therapy option
- PS Save Yourself from Neck Pain! — A complete guide to chronic neck pain and the disturbing sensation of a “crick”
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
- A Bayesian model-averaged meta-analysis of the power pose effect with informed and default priors: the case of felt power. Gronau 2017 Comprehensive Results in Social Psychology.
- The neck and headaches. Bogduk 2014 Neurol Clin.
- Agreement of self-reported items and clinically assessed nerve root involvement (or sciatica) in a primary care setting. Konstantinou 2012 Eur Spine J.
- Effect of NSAIDs on Recovery From Acute Skeletal Muscle Injury: A Systematic Review and Meta-analysis. Morelli 2017 Am J Sports Med.
- Association of Spinal Manipulative Therapy With Clinical Benefit and Harm for Acute Low Back Pain: Systematic Review and Meta-analysis. Paige 2017 JAMA.