男女手根管症候群間での電気生理学的な術前の重症度と術後回復の比較検討

Comparison of Preoperative and Postoperative Electrophysiological Assessments of Male and Female Carpal Tunnel Syndrome Patients

　背景：手根管症候群に対し電気生理学的に男女間を比較した．

　対象と方法：男性58手，女性200手を電気生理学的重症度(1～5期)に基づいて検討した．

　結果：術前は男性：4期41.4％，女性：5期49.5％が最多で，重症(4，5期)は各々81％，80％であった．術後1年で，男性：77.6％，女性：87.5％が1期以上改善し，軽症例(1，2期)が各々51.7％，55.0％と有意に増加した(p＜0.0001)．

　まとめ：電気生理学的には，性差による術前の重症度，術後の回復に差はない．

　Background：Patients were objectively evaluated for possible gender differences in carpel tunnel syndrome (CTS).

　Method：Fifty-eight male patients and 200 female with CTS patients were compared on a stage 1-5 electrophysiological severity scale.

　Outcome：Preoperatively, stage 4 was the most common stage in the male group (24 of 58 patients-41.4%), and stage 5 was the most common stage in the female group (99 out of 200 patients-49.5%).　The “severe” (stage 4 or 5) cases accounted for similar percentages of both genders, 47 male patients (81%) and 168 female patients (80%).　One-year postoperatively, at least one stage improvement was observed in 45 of 58 male patients (77.6%) and in 175 of 200 female patients (87.5%), and the numbers of "mild" cases (stage 1 or 2) had significantly increased in both the male group (from 6.9% to 51.7%) and female group (from 4.5% to 55.0%) (p＜0.0001).

　Conclusion：We concluded that there were no significant gender differences in the severity of CTS or the outcome of carpal tunnel release (CTR) based on assessments by the electrophysiological severity scale.