Measurement Error of a Simplified Protocol for Quantitative Sensory Tests in Chronic Pain Patients.

Müller, Monika; Biurrun Manresa, José Alberto; Limacher, Andreas; Streitberger, Konrad Markus; Jüni, Peter; Andersen, Ole Kæseler; Curatolo, Michele (2017). Measurement Error of a Simplified Protocol for Quantitative Sensory Tests in Chronic Pain Patients. Regional anesthesia and pain medicine, 42(5), pp. 660-668. Lippincott Williams & Wilkins 10.1097/AAP.0000000000000640

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BACKGROUND AND OBJECTIVES Large-scale application of Quantitative Sensory Tests (QST) is impaired by lacking standardized testing protocols. One unclear methodological aspect is the number of records needed to minimize measurement error. Traditionally, measurements are repeated 3 to 5 times, and their mean value is considered. When transferring QST to a clinical setting, reducing the number of records would be desirable to meet the time constraints encountered in a routine clinical environment and to reduce the testing burden to chronic pain patients. However, there might be a trade-off between measurement error and number of records. We determined the measurement error of a single versus the mean of 3 records of pressure pain detection threshold (PPDT), electrical pain detection threshold (EPDT), and nociceptive withdrawal reflex threshold (NWRT) in 429 chronic pain patients recruited in a routine clinical setting. METHODS We calculated intraclass correlation coefficients and performed a Bland-Altman analysis. RESULTS Intraclass correlation coefficients were all clearly greater than 0.75, and Bland-Altman analysis showed minute systematic errors with small point estimates and narrow 95% confidence intervals. Reducing the number of records from traditionally 3 to only 1 did not lead to relevant measurement error in PPDT, EPDT, or NWRT. CONCLUSIONS This study contributes to a standardized QST protocol, and based on the minimal measurement error of 1 single record of PPDT, EPDT, and NWRT, we submit to reduce the testing burden. This would allow saving time, resources, and patient discomfort.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Intensive Care, Emergency Medicine and Anaesthesiology (DINA) > Clinic and Policlinic for Anaesthesiology and Pain Therapy
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Social and Preventive Medicine
04 Faculty of Medicine > Pre-clinic Human Medicine > CTU Bern

UniBE Contributor:

Müller, Monika; Limacher, Andreas and Streitberger, Konrad Markus

Subjects:

600 Technology > 610 Medicine & health
300 Social sciences, sociology & anthropology > 360 Social problems & social services

ISSN:

1098-7339

Publisher:

Lippincott Williams & Wilkins

Language:

English

Submitter:

Jeannie Wurz

Date Deposited:

05 Sep 2017 14:55

Last Modified:

01 Oct 2018 02:30

Publisher DOI:

10.1097/AAP.0000000000000640

PubMed ID:

28742627

Additional Information:

Monika Müller and José Alberto Biurrun Manresa contributed equally to this work

BORIS DOI:

10.7892/boris.105131

URI:

https://boris.unibe.ch/id/eprint/105131

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