Neurology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Pain Med. 2011 Oct;12(10):1544-50. doi: 10.1111/j.1526-4637.2011.01221.x. Epub 2011 Aug 30.
Neuropathic pain (NP) is a very frequent and unrecognized condition in clinical practice. Therefore, it is important to have a reliable instrument to assess pain subtypes in various cultures. The Leeds Assessment of Neuropathic Symptoms and Signs (LANSS) has been widely used and validated in many countries. Up to now, there has been no reliability study of this instrument in Brazil.
The scores of the Brazilian Portuguese version of the LANSS were studied in a sample of 90 chronic pain outpatients from southern Brazil. LANSS was translated into Portuguese and then back translated to English. Intraclass correlation coefficient (ICC) and internal consistency (IC) were estimated. The intensity of pain complaints, other demographic data, and LANSS scores distribution according to pain subtypes (nociceptive, neuropathic, and mixed) were also evaluated.
The Brazilian Portuguese version of the LANSS showed good ICC (r = 0.97) and IC (Cronbach's α = 0.67 for total LANSS score). Patients with NP provided significant higher LANSS scores (19.1 ± 3.3) in comparison with those with nociceptive (7.3 ± 4.5) and mixed (13.9 ± 3.7) types of pain.
This LANSS version was found to be a reliable instrument for the evaluation of pain complaints due to a variety of causes. The profile of pain scores was similar to that observed in other countries.
神经病理性疼痛（NP）在临床实践中非常常见，但往往未被识别。因此，拥有一种可靠的工具来评估各种文化中的疼痛亚型非常重要。Leeds 评估神经性症状和体征（LANSS）已在许多国家得到广泛应用和验证。迄今为止，该工具在巴西尚未进行可靠性研究。
本研究对来自巴西南部的 90 名慢性疼痛门诊患者的巴西葡萄牙语版 LANSS 评分进行了研究。LANSS 首先被翻译为葡萄牙语，然后再翻译回英语。我们评估了组内相关系数（ICC）和内部一致性（IC）。还评估了疼痛投诉的强度、其他人口统计学数据以及根据疼痛亚型（伤害感受性、神经性和混合性）分布的 LANSS 评分。
巴西葡萄牙语版的 LANSS 显示出良好的 ICC（r = 0.97）和 IC（总 LANSS 评分的 Cronbach's α = 0.67）。与伤害感受性（7.3 ± 4.5）和混合性（13.9 ± 3.7）疼痛类型相比，NP 患者的 LANSS 评分明显更高（19.1 ± 3.3）。
该版本的 LANSS 被认为是一种可靠的评估各种原因引起的疼痛投诉的工具。疼痛评分的特征与其他国家观察到的相似。
