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Vulink NC, Overgaauw DM, Jessurun GA, Tenvaarwerk IA, Kropmans TJ, van der Schans CP, Middel B, Staal MJ, Dejongste MJ
The effects of spinal cord stimulation on quality of life in patients with therapeutically chronic refractory angina pectoris.
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Objective. For patients with refractory angina pectoris, spinal cord stimulation (SCS) is a beneficial and safe adjuvant therapy. However, it has not yet been established whether SCS alters the quality of life (QoL) in these patients. Methods. In this study, 26 consecutive patients (age 61.3 ± 7.0 years, 13 females, angina duration 12.7 ± 6.0 years) were recruited. Social, mental, and physical aspects of QoL were determined by Nottingham Health Profile (NHP I), depression scale (CES-D), scoring of angina pectoris attacks and short-acting nitroglycerine intake, pain score on the Visual Analog Scale (VAS), perceived health percentage, Satisfaction With Life scale (SWLS), and one-aspect Linear Analog Self Assessment scale (LASA). QoL outcomes at baseline were compared with reference values from healthy subjects. Within-group changes and magnitude of changes (effect size, ES) were assessed after 3 months and 1 year of SCS. Results. Compared to healthy subjects, the patients had significantly worse scores at baseline on NHP, SWLS, and LASA. After 3 months of SCS, NHP I aspect pain (ES = 1.39), AP-score (ES = 0.85), perceived health percentage (ES =- 0.80), NTG-use (ES = 1.08) and VAS-score (ES = 1.13) were all significantly improved (p 0.80). Conclusion. QoL in patients with refractory angina pectoris is poor. Both pain and health aspects of QoL improved significantly after 3 months of SCS. Social, mental, and physical aspects of QoL were found improved after 1 year of SCS.
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