Stereotactic Radiosurgery for Trigeminal Neuralgia Improves Patient-Reported Quality of Life and Reduces Depression

Publication date: 1 August 2017
Source:International Journal of Radiation Oncology*Biology*Physics, Volume 98, Issue 5
Author(s): Rupesh Kotecha, Jacob A. Miller, Sujith Modugula, Gene H. Barnett, Erin S. Murphy, Chandana A. Reddy, John H. Suh, Gennady Neyman, Andre Machado, Sean Nagel, Samuel T. Chao
PurposeTo characterize quality-of-life (QOL) outcomes after stereotactic radiosurgery (SRS) for trigeminal neuralgia (TN).Methods and MaterialsThe EuroQOL 5 Dimensions (EQ-5D) and Patient Health Questionnaire 9 (PHQ-9) were prospectively collected before and after SRS for 50 patients with TN. Pain response and treatment-related facial numbness were classified by Barrow Neurological Institute (BNI) scales. Differences in pooled QOL outcomes were tested with paired t tests and sign tests. The Kaplan-Meier method was used to estimate time-dependent improvements in the EQ-5D index, EQ-5D perceived health status (PHS), PHQ-9 score, and freedom from pain failure (BNI class IV-V) or facial numbness (BNI class III-IV).ResultsFollowing SRS, the 12-month rate of freedom from pain failure was 92% (95% confidence interval [CI], 77%-97%) while the 12-month rate of freedom from facial numbness was 89% (95% CI, 66%-97%). Significant improvements in the EQ-5D index (P<.01), PHS (P=.01), and PHQ-9 (P=.03) were observed, driven by the EQ-5D subscores for self-care and for pain and/or discomfort (P=.02 and P<.01, respectively). At 12 months after SRS, the actuarial rates of improvement in the EQ-5D, PHS, and PHQ-9 were 55% (95% CI, 40%-70%), 59% (95% CI, 40%-76%), and 59% (95% CI, 39%-76%), respectively. The median time to improvement in each of the QOL measures was 9 months (95% CI, 3-36 months) for the EQ-5D index, 5 months (95% CI, 3-36 months) for PHS, and 9 months (95% CI, 3-18 months) for the PHQ-9. On multivariate analysis, only higher prescription dose (86 Gy vs ≤82 Gy) was associated with improvement in the EQ-5D index (hazard ratio, 5.73; 95% CI, 1.85-22.33; P<.01).ConclusionsPatients with TN treated with SRS reported significant improvements in multiple QOL measures, with the therapeutic benefit strongly driven by improvements in pain and/or discomfort and in self-care, along with lower rates of depression. In this analysis, there appears to be a correlation between prescription dose and treatment response as measured by the EQ-5D.



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