NEJM:一例有视力模糊和肾功能衰竭的22岁女患者[病例讨论]

2010-11-05 MedSci原创 MedSci原创

来自于医学论坛报   病历报告   梅根· E·赛斯医师(内科):一名22岁女性因视力模糊和肾功能衰竭入住本院。   该病人身体一直不错,直到入院前1周她注意到其右眼视力模糊。次日,她与其初级保健医师会面,该医师将她转给另一家医院的一位眼科医师。她被告知患有“视网膜炎症”,并被转给一位视网膜专科医师,她在次日(入院前5天)就诊于这位医师。她报告右眼后面有严重的搏动性疼痛和眼睛发红。检查结

来自于医学论坛报

  病历报告

  梅根· E·赛斯医师(内科):一名22岁女性因视力模糊和肾功能衰竭入住本院。

  该病人身体一直不错,直到入院前1周她注意到其右眼视力模糊。次日,她与其初级保健医师会面,该医师将她转给另一家医院的一位眼科医师。她被告知患有“视网膜炎症”,并被转给一位视网膜专科医师,她在次日(入院前5天)就诊于这位医师。她报告右眼后面有严重的搏动性疼痛和眼睛发红。检查结果显示结膜充血和后葡萄膜炎。医师开具了口服伐昔洛韦、亚叶酸钙、泼尼松、磺胺嘧啶和乙胺嘧啶的处方,并且开具了外用泼尼松龙和后马托品眼用溶液的处方。当天她开始了除乙胺嘧啶(药房没有)以外的所有药物治疗。第二天接受了实验室检查,全血细胞计数正常,并且快速血浆反应素试验无反应。其他试验结果有待报告。

  在接下来的几天里,她发现尿色变深。入院前1天,她回到那名视网膜专科医师处就诊。3天前所做试验的结果包括:血清血管紧张素转换酶水平正常,以及血清蛋白电泳正常;抗核抗体、抗双链DNA抗体、狼疮抗凝物和抗伯氏疏螺旋体抗体试验结果均为阴性。她被转到马萨诸塞眼耳医院,并且被安排次日就诊。当天下午乙胺嘧啶已可以获得,她开始服用该药。

  在入院当天早上,该病人因恶心而醒来,呕吐数次,并且不能服用口服药物。(该病人)左下腹和胁部出现绞痛,疼痛自行消失,但随后出现右下腹疼痛,并向腹股沟放射。她发现尿排出量减少。当天晚些时候在马萨诸塞眼耳医院进行评估时,她报告右眼痛,根据1~10分的量表(10分表示最严重的疼痛)评为3分。2周前,她曾有过持续2天的流感样疾病,伴有出汗、寒战、头痛和肌痛(这些症状缓解),而且没有发热、咽喉痛、咳嗽、腹泻、头痛(原文如此)、皮疹、光过敏或飞蚊症。她有羟考酮成瘾史,为此她服用美沙酮。病人最初报告没有静脉使用违禁药物史,然而,当其家人不在场询问她时,她自称在入院前1个月曾经使用过1次海洛因。

  入院前5个月里,她刻意减轻体重达15.9 kg(35 磅)。她上次月经是在2个月前。她没有已知的过敏。她单身并有1只猫。她没有外地旅行史。她有糖尿病家族史。

  检查时,该病人的右眼视敏度限于保持在0.3 m(1 英尺)远处数指的程度。采用针孔试验视敏度没有改善。眼内压是11 mmHg。眼睑正常。鼻侧结膜下有微量出血。角膜正常。前房有微量细胞,但无积脓(即白细胞层)。虹膜和晶状体正常。眼底镜检查显示,有玻璃体混浊,使患眼后极模糊。视盘看不清楚。视网膜存在黄—白变化。下方和黄斑区有视网膜下积液。左眼检查结果以及双眼的眼外运动均正常。医师安排(对病人)进行玻璃体切除术。当天晚些时候获得实验室检查结果时(表1),该病人接到电话并被通知到本院急诊科就诊。

  在急诊科检查时,该病人反应灵敏并且处于无急性病痛的状态。体温为37.1°C,血压为140/81 mmHg,脉率为111次/分,呼吸率为18次/分,该病人呼吸周围空气时的氧饱和度为97%。没有皮疹。肺和心脏检查结果正常。腹软,右上腹触诊时有轻度压痛,没有肌卫现象和反跳痛。肋脊角有轻度压痛。骨盆检查正常,宫颈移动或附件触诊时没有疼痛。血清总蛋白、白蛋白、球蛋白、钙、磷、镁、脂肪酶以及淀粉酶水平均正常,肝功能检查结果也正常。尿妊娠试验和宫颈淋病奈瑟球菌及沙眼衣原体试验均为阴性。其他的实验室检查结果见表1。血液和尿液标本得到培养。肾脏超声检查显示,右肾长度为11.2 cm以及左肾长度为11.1 cm,肾实质正常并且没有肾积水或肿物。经胸超声心动图检查结果正常,无瓣膜赘生物。

  该病人被收入本院,并被实施诊断性操作。

  鉴别诊断

  马琳· L·杜兰德医师:我知道该病例的诊断。这名22岁女性有持续1周的单侧视力损失伴疼痛,但她没有眼部手术或创伤史。这种快速视力损害是眼部感染的典型表现。严重的眼部感染必须得到迅速的诊断和治疗,以避免永久性视力损害。在该病例中,应该考虑危及视力的眼部感染的3种主要类型:角膜炎、葡萄膜炎和眼内炎。

   角膜炎

  角膜炎是角膜的炎症。由于角膜感觉神经供应丰富,角膜炎通常引起眼痛,这例病人就有。角膜感染有可能累及上皮和(或)无血管的基质(间质)。在间质性角膜炎中,角膜表面平滑,但由于基质浸润和水肿,角膜看起来模糊。在溃疡性角膜炎中,角膜表面的火山口样溃疡可同时累及上皮和间质。在美国,角膜炎的最常见原因是单纯疱疹(可引起上皮性或间质性角膜炎)和细菌感染(通常引起溃疡性角膜炎并与使用隐形眼镜有关)。检查时这例病人的角膜正常,因此她没有角膜炎。

  葡萄膜炎

  葡萄膜炎是葡萄膜和(或)视网膜的炎症。葡萄膜是有色素沉着并富含血管的眼中层,由虹膜、睫状体和脉络膜组成。依据炎症的最初解剖学部位,葡萄膜炎被分为前、中、后或全葡萄膜炎。前葡萄膜炎指虹膜(虹膜炎)或虹膜加睫状体(虹膜睫状体炎)的炎症, 后葡萄膜炎指脉络膜(脉络膜炎),其上覆的视网膜(视网膜炎)或两者(脉络膜视网膜炎)的炎症。大约10%的所有前葡萄膜炎病例和50%的后葡萄膜炎病例是由感染引起的1。 (略)

  (N Engl J Med 2010;363:1749-58. October 28, 2010)

全文参看http://www.nejm.org/doi/full/10.1056/NEJMcpc1005308

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