Chronic pain affects an important part of the pediatric population in developed countries. secondary chronic pain (SCP) can have a well-defined medical cause, but primary chronic pain (PCP) can have an unknown etiology. In Spain, there is as yet no information on the clinical differences between patients treated in multidisciplinary units.
Retrospective analysis of the clinical records of patients seen in 2018 at the Children’s Chronic Pain Unit in University La Paz Hospital.
A total of 92 patients were included, (age between 3 and 19 years), with a mean age of 12.4 (SD = 4.1) years, mostly female (55%), with a mean duration of pain of 11.3 (SD = 10.4) months. A comparison of patients with PCP (n = 31) and SCP (n = 61) showed that both groups, on average, presented intense pain (X = 5.9; SD = 2.2; range = 0-10), with similar duration and functional repercussions, although PCP was less likely to be associated with neuropathic descriptors than SCP (p = 0.040), and was more extensive (p < 0.001). Both groups received similar treatment, based on rehabilitation, psychotherapy, invasive techniques and analgesic medication, although patients in the PCP group received less analgesic medication (gabapentinoids and opioids) than the SCP (p = 0.011).
Patients treated in a multidisciplinary Child Pain Unit for PCP or SCP present a very similar clinical profile, though with differences in the number and type of analgesic drugs used. This shows the importance of etiologic diagnosis for adequate pharmacological treatment.
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