Mechanosensory and thermosensory changes across the border of impaired sensitivity to pinprick after mandibular nerve injury
Mechanosensory and thermosensory changes across the border of impaired sensitivity to pinprick after mandibular nerve injury
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DOI：
10.1053/joms.2002.35721
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发表时间：
2002-11-01
影响因子：
1.9
通讯作者：
Trulsson, M
中科院分区：
文献类型：
--
作者：
Essick, GK;Patel, S;Trulsson, M
目的：本研究的目标是确定感觉功能如何变化的边界受损的敏感性针刺在患者下颌神经injuries.Patients和方法：边界的敏感性下降针刺映射在15例患者报告感觉改变。四个机械感受，2热感受，和2热感受功能进行了研究，在5个网站相隔0.6厘米的边界。重复的测试，以评估每天的一致性，在每个感官measure.Results的变化模式：感觉功能的估计没有发现变化的系统方式从外面到里面的针刺受损区域的所有患者的任何8个测试。然而，对于每一项测试，一些患者表现出很大的变化。平均而言，接触检测，轻触的主观强度和方向辨别的损失幅度最大; 2点感知和冷热疼痛感知的损失幅度最小。一些患者在某些测试中没有提供损害的证据。对于一些患者，估计建议增加敏感性的针刺受损区域内（例如，有害的冷刺激）。结论：虽然某些患者表现出损害，有没有强制性的损失轻触摸，2点感知，方向辨别，或温度感知的边界上的敏感性降低针刺。患者之间的差异表明，应在临床研究和临床实践中评价个体患者的数据。研究人员不应仅仅依赖平均值和汇总统计数据。(C)2002年美国口腔颌面外科医师协会。
Purpose: The study goal was to determine how sensory function varies across the border of impaired sensitivity to pinprick in patients with mandibular nerve injuries.Patients and Methods: Borders of decreased sensitivity to pinprick were mapped in 15 patients who reported altered sensation. Four mechanoreceptive, 2 thermoreceptive, and 2 thermonociceptive functions were studied at 5 sites separated by 0.6 cm across the border. The tests were repeated to evaluate day-to-day consistency in the pattern of variation for each sensory measure.Results: The estimates of sensory function were not found to vary in a systematic manner from outside to inside the pinprick-impaired area for all patients for any of the 8 tests. However, for every test, some patients exhibited large variations. On average, the magnitudes of loss in contact detection, subjective intensity of light touch, and direction discrimination were greatest; the magnitudes of loss in 2-point perception and in heat and cold pain perception were least. Some patients provided no evidence of impairment on certain tests. For some patients, the estimates suggested increased sensitivity within the pinprick-impaired area (eg, to noxious cold stimuli).Conclusions: Although certain patients exhibit impairment, there is no obligatory loss in light touch, 2-point perception, direction discrimination, or temperature perception across the border of decreased sensitivity to pinprick. The differences among patients suggest that the data from individual patients should be evaluated in clinical studies and in clinical practice. Researchers should not rely solely on average values and summary statistics. (C) 2002 American Association of Oral and Maxillofacial Surgeons.