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2005, Number 3

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Rev Mex Anest 2005; 28 (3)

Evaluation of sleep in the non-malignant chronic pain

Covarrubias-Gómez A, Guevara-López UM, Betancourt-Sandoval JA, Delgado-Carlo MM, Cardona-Cordero AV, Hernández-Martínez JR

Language: Spanish
References: 30
Page: 130-138
PDF size: 89.56 Kb.


ABSTRACT

Objective: Assessing characteristics of sleep in patients with chronic pain. Material and methods: This was a descriptive, prospective clinical trial of ambulatory patients with chronic non-malignant pain. Patients answered the Pittsburgh Sleep Quality Index (PSQI) questionnaire in person or on a telephonic interview. Pain intensity was assessed using the visual analogue scale (VAS) from 0 to 10 points. Results: Forty patients met the inclusion criteria. Significant differences were found in gender, scholarship (p ‹ 0.001), and age (p ‹ 0.05). Regarding pain, significant differences were found in: (a) the initial VAS value (p ‹ 0.002), (b) pain type (mixed, non-nociceptive, and nociceptive, p ‹ 0.001), and (c) cause of pain (lower back pain and neuropathy, p ‹ 0.001). Whereas significant differences were found in the Global PSQI score (p ‹ 0.001), the domains evaluated by the PSQI (C2 to C7) did not show a significant difference. The subjective sleep quality (C1) reported a p value ‹ 0.001. Conclusions: Despite a global PSQI score deemed as bad, patients reported a good subjective sleep quality. This had no relation to the type or intensity of pain. We concluded that the systematic application of different instruments focused on evaluating sleep characteristics and habits would be convenient; together with polysomnographic records, it could reveal the real impact of pain over sleep.


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