1、Postherpetic neuralgia(PHN)is a management challengebecause of its severity,long duration,and potential for debilitation,often in the highly vulnerable elderly population.带状疱疹后遗神经痛（PHN）是一个治疗的挑战，因为其严重程度、持续时间长、和常常潜伏在免疫力低下的老年人口中。2And,as the most common complication of an acute episode of herpes zoster(
2、shingles)in an immunocompetent person,PHN is likely no stranger to your practice.而且，在具有免疫力的人中，作为急性带状疱疹（带状疱疹）最常见的并发症，在你的临床实践中疱疹后神经痛并不少见。3Herpes zoster is one of the most common neurological problems,with an incidence of up to 1 million new cases per year in the United States.Although the precise numb
3、er for the prevalence of PHN in the United States is unknown,investigators estimate it at 500,000 to 1 million 带状疱疹是一种最常见的神经系统的疾病，在美国，其发病率高达每年100万新增病例。虽然疱疹后神经痛患病率的确切数目在美国是未知的，但调查人员估计在50万-100万。4Major risk factors for development of PHN after an episode of herpes zoster include:older agegreater acute
4、pain during herpes zostergreater severity of rash 带状疱疹发生后，发展为带状疱疹后遗神经痛的主要危险因素包括：年龄 带状疱疹期更严重的疼痛 更严重的皮疹5PHN is commonly defined as“dermatomal pain that persists 120 days or more after the onset of rash.”5 The pain of PHN has been characterized as a stimulus-dependent continuous burning,throbbing,or ep
5、isodic sharp electric shock-like sensation6 and as a stimulus-dependent tactile allodynia(ie,pain after normally nonpainful stimulus)and hyperalgesia(exaggerated response to a painful stimulus).带状疱疹后遗神经痛通常定义为：“皮区出现皮疹后疼痛持续120天或更久。带状疱疹后遗神经痛的特点是：连续的烧灼感、闪电痛、触摸痛（即是无痛刺激后的疼痛）和痛觉超敏（疼痛刺激的放大反应）6In addition,so
6、me patients experience myofascial pain secondary to excessive muscle guarding.Chronic pruritus can be present.此外，有些病人的经验肌筋膜疼痛继发过度肌肉防御，可以产生慢性瘙痒。7More than 90%of patients who have PHN have allodynia,7 which tends to occur in areas where sensation is relatively preserved.Patients also feel spontaneous
7、pain in areas where sensation is lost or impaired.带状疱疹后遗神经痛患者超过90%有触摸痛，这往往发生在感觉相对保存的地方。在感觉丧失或受损的地方，患者也有自发性疼痛。8In this article,we review the evidence for the range of treatments for acute herpes zoster and PHN,as well offer preventive strategies for herpes zoster.在本文中，我们回顾急性带状疱疹和疱疹后神经痛范围内的治疗证据，也提供预防带
8、状疱疹的策略。9ACUTE HERPES ZOSTER:START ANTIVIRALS EARLYEvidence-based treatment of acute herpes zoster includes antiviral drugs and analgesics.急性带状疱疹：早期使用抗病毒药物以证据为基础的治疗急性带状疱疹包括抗病毒药物和止痛药。10Antiviral agents suppress viral replication and have a beneficial effect on acute and chronic pain.Acyclovir(800 mg,5
9、 times a day),valacyclovir(1000 mg,every 8 hours),and famciclovir(500 mg,every 8 hours)are antivirals commonly used to treat herpes zoster.All 3 drugs have comparable efficacy and safety profiles.抗病毒药物抑制病毒复制，有利于治疗急性和慢性疼痛。阿昔洛韦（800毫克，每日5次），伐昔洛韦（1000毫克，每8小时），和泛昔洛韦（500毫克，每8小时）是常用的治疗带状疱疹的抗病毒药物，3种药物有类似的疗效
10、和安全性。11In a meta-analysis of patients older than 50 years who were treated with acyclovir or placebo,pain persisted in 15%of the acyclovir-treated group,compared with 35%of the placebo group.8 meta分析中，使用阿昔洛韦治疗或安慰剂的年龄超过50岁的患者，阿昔洛韦治疗组中15%的患者有后遗痛，相比下，安慰剂组中35%的患者有后遗痛。12In terms of duration,a study compa
11、ring famciclovir treatment with placebo showed that subjects in the placebo group had persistent pain for 163 days,whereas famciclovir-treated patients had pain for 63 days.9 在持续性方面：一个关于伐昔洛韦治疗组和安慰组的研究表明：安慰剂组患者疼痛持续163天，而伐昔洛韦治疗组患者疼痛持续63天。13Based on this evidence,antiviral medications are strongly reco
12、mmended for treating herpes zoster,especially for patients at increased risk of developing PHN.Antiviral treatment should be started within 72 hours of the onset of the rash.基于这些证据，强烈推荐使用抗病毒药物治疗带状疱疹的患者，尤其是可能发展为带状疱疹后遗神经痛的患者。抗病毒治疗应该在皮疹出现72小时内使用。14No good evidence supports the efficacy of antiviral tre
13、atment administered 72 hours after the onset of rash.One uncontrolled trial,however,examined the effectiveness of acyclovir started before vs after 72 hours;the difference in pain persistence was not significant between the groups,suggesting acyclovir has benefit even when given after 72 hours.10 没有
14、有力的证据表明皮疹出现72小时以后阿昔洛韦的疗效。一个不受控制的实验，用来调查阿昔洛韦分别在（皮疹出现）72小时之前和之后使用（的疗效）。在这两组中，疼痛的持续性没明显区别，这表明即使在（皮疹出现）72小时之后使用阿昔洛韦仍有疗效。15In clinical practice,the diagnosis of herpes zoster is often not made within 72 hours of symptom onset;nevertheless,it is important to identify patients who could still benefit from
15、antiviral medication even when treatment is started relatively late in the disease course.This is especially true in ocular zoster,because viral shedding may continue beyond 72 hours.11 在临床实践中，带状疱疹往往未在发病的72小时内明确诊断。而然，明确（带状疱疹）患者是非常重要的，在较晚的病情开始使用抗病毒治疗仍有益处，尤其是在眼部的带状疱疹，因为病毒脱落可能持续超过72小时。16Analgesics are
16、part of a practical approach for managing herpes zosterassociated pain that begins with a short-acting opioid in combination with acetaminophen or a nonsteroidal anti-inflammatory(NSAID)agent.Gabapentin or pregabalin,followed by a tricyclic antidepressant,can be added if conventional analgesics are
17、not entirely effective.镇痛药是一个治疗带状疱疹相关疼痛切实可行的办法：短效阿片类药物结合对乙酰氨基酚或非甾体抗炎药（NSAID）。如果常规止痛不完全有效，可以加用加巴喷丁和普瑞巴林，其次是三环抗抑郁药。17The analgesic regimen should be tailored to the patients needs and tolerance of adverse effects.If pain control is inadequate or adverse effects are intolerable,consider referring the p
18、atient to a pain management center for possible interventional modalities.镇痛方案应针对病人的需要和不良反应的耐受性。如果疼痛控制不理想或不良反应无法耐受，可考虑介绍患者到疼痛中心行合适的介入性治疗。18Key PointGabapentin or pregabalin,followed by a tricyclic antidepressant,can be added if conventional analgesics are not effective for herpes zoster pain.关键点如果常规
19、镇痛药对带状疱疹疼痛没效的话，可以使用加巴喷丁和普瑞巴林，其次是三环抗抑郁药。19Corticosteroids are not recommended routinely for treatment of herpes zoster;you can try them in otherwise healthy older adults,however,if antiviral therapy and analgesics do not relieve pain.治疗带状疱疹，不建议常规使用皮质类固醇，但是，如果抗病毒治疗和止痛药不能减轻疼痛，你可以尝试在健康的老年人身上使用。20In 2 do
20、uble-blind controlled trials,a combination of acyclovir and corticosteroids for 21 days did not decrease the incidence of PHNalthough some benefit was seen in terms of patients return to normal activities,cessation of analgesic therapy,and improved sleep.12,13 在2个双盲对照试验中，结合阿昔洛韦和类固醇的21天（治疗），虽然在病人恢复正常活动、停止镇痛治疗、并改善睡眠上有些益处，但没有减少PHN的发病率。21谢谢大家！
