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Abnormal Pain Processing in COPD Patients

Abnormal Pain Processing in COPD Patients

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04319523
Enrollment
65
Registered
2020-03-24
Start date
2018-11-01
Completion date
2021-12-03
Last updated
2020-03-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain, Pulmonary Disease, Chronic Obstructive

Brief summary

Dyspnea, cough, and fatigue are the symptoms characteristic of moderate-severe COPD. Within the progression of disease was also reported a prevalence of 34-77% of pain symptoms in these patients. A review observed a higher score in pain intensity/interference associated with multiples pain locations of COPD patients. Pain in chronic diseases may appear to result from abnormalities in pain processing because of the damage and/or inflammation of peripheral structures.

Detailed description

Dyspnea, cough, and fatigue are the symptoms characteristic of moderate-severe COPD. Within the progression of disease was also reported a prevalence of 34-77% of pain symptoms in these patients. A review observed a higher score in pain intensity/interference associated with multiples pain locations of COPD patients. Several studies reported that comorbidities, GOLD grade, and breathlessness may contribute to a higher pain prevalence in COPD patients because of the systemic inflammatory process and lung hyperinflation. Pain in chronic diseases may appear to result from abnormalities in pain processing and alteration of sensitization due to the damage and/or inflammation of peripheral structures.

Interventions

None listed

Sponsors

Universidad de Granada
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Between 50 and older age * Accepted to sign the informed consent

Exclusion criteria

* comorbidities with a course of chronic pain that interfered with evaluation * the presence of cognitive impairment to understand the questionnaire

Design outcomes

Primary

MeasureTime frameDescription
Pressure pain thresholdsBaselinePressure pain thresholds (PPT) was used to measure pressure pain sensitivity in muscles with an algometer. With the patient in a seated position, pressure was applied three times at five bilateral points of the body: the distal thumb phalangeal, the gracilis muscle tendon at the inside of the knee, the distal of the middle part of the clavicle, the supraspinous muscle and the trapezius muscle's second portion. When the participant reported that pressure changed to pain, the pressure was stopped, and the mean value was registered.
Temporal summationBaselineTemporal summation (TS) was used to evaluated peripheral sensitization. First, the pressure was applied with gradually increasing pressure until the subject reported pain in the flexor digitorum muscle of each arm. Second, 15 stimuli were applicated to one arm at an interstimulus interval (ISI) of 3 s and then to the other arm at an ISI of 5 s. After a 5 min, the series of stimuli were repeated in reverse order. The evaluation of TS was measured with a standardized numerical scale for rating the magnitude of late sensations experienced during the first, fifth, tenth, and fifteenth stimuli, and 15 and 60 s after the last stimulus in each series to evaluated the temporal summation. The scale ranged from 0 (no pain) to 100 (intolerable pain).

Secondary

MeasureTime frameDescription
International Physical Activity QuestionnaireBaselineThe International Physical Activity Questionnaire (IPAQ) measures total physical activity (MET·minutes·days per week).
Pain Sensitivity QuestionnaireBaselineThe Pain Sensitivity Questionnaire (PSQ) measured general pain sensitivity. It consists of 17 items, each describing a daily life situation and asking the patients to rate how painful this situation would be for them on a numeric rating scale ranging from 0 (not painful) to 10 (worst pain imaginable). A major score in the questionnaire a higher pain sensitivity.
London Chest Activity of Daily LivingBaselineThe London Chest Activity of Daily Living (LCADL) was used to assess the impact and severity of breathlessness on ADLs. The LCADL has been used as an outcome measure in COPD. Higher scores reflect greater breathlessness during daily activity and the tool includes an anchor question identifying an individual's overall perception of the impact of breathlessness on their daily life.
Hospital Anxiety and Depression ScaleBaselineThe HADS is a self-rated questionnaire originally developed for minor depressive symptoms in general medical outpatients. It consists of 14 items, depression (seven items) and anxiety (seven times), each with four choices numbered alphabetically. Each of the subscales' scores ranges from 0 to 21, corresponding to total scores of 0 to 42, with higher scores indicating greater distress.
Borg scaleBaselineThe Borg scale was used to assess the dyspnea, which is a comprehensive instrument designed to measure breathlessness in patients with respiratory pathology. Patients rated their dyspnoea from 0 to 10, where 0 represents no dyspnoea and 10 represents maximum dyspnoea. A difference of 0.9 units was considered as the minimal clinically important difference (MCID), according to previous studies in patients with respiratory disease

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026