A case of fatal acute intermittent porphyria: laboratory diagnosis and pathogenesis considerations / Un caz fatal de porfirie acută intermitentă: diagnostic de laborator şi consideraţii patogenice

R. Bălaşa, S. Maier, Anca Moţăţăianu, Z. Bajko, O. Moldovan, E. Benedek
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引用次数: 1

Abstract

Abstract Acute intermittent porphyria (AIP) is a metabolic disease with an autosomal dominant inheritance, with porphobilinogen (PBG) deaminase as the deficient enzyme in heme biosynthetic pathway at cytosolic subcellular locations. This diagnosis must be evoked in all adults with unexplained symptoms, but some clinical features are suggestive: women with reproductive age; abdominal pain; muscle weakness; sever and prolonged hyponatremia; dark or reddish urine. The authors present a fatal case of a 39-years old female who presented acute abdominal pain followed by severe peripheral nervous system lesions with tetraplegia. Urine analysis showed enormously increased levels of porphirins, PBG and Δ aminolevulinic acid. The diagnosis of AIP was established and even if the correct treatment (Hemine, glucose) was administrated, the patient died after 3 weeks from onset due to a septic shock. The authors discuss the laboratory abnormalities that are found in AIP and also the pathogenesis of the acute attack of AIP as well as the mechanism of severe nervous system damage that is less understood. In conclusion, laboratory testing must be performed early and if a diagnose of AIP is not made promptly serious consequences may follow for the patient. Rezumat Porfiria acută intermitentă (PAI) este o boală metabolică, cu transmitere autosomal dominantă, cu alterarea căii de biosinteză a hemului prin deficitul enzimei porphobilinogen (PBG) dezaminaza. Acest diagnostic trebuie să fie evocate în toate cazurile de adultii care prezintă simptome inexplicabile, dar cu unele caracteristici clinice sugestive: femei cu vârstă reproductivă, dureri abdominale, slăbiciune musculară, hiponatremie prelungită şi severă, urină închisă la culoare sau roşie. Autorii prezinta un caz fatal de PAI la o femeie de 39 de ani, care a prezentat dureri abdominale acute, urmate de leziuni severe ale sistemului nervos periferic cu tetraplegie. Analiza urinei a arătat nivelurile de porfirine, PBG şi de acid aminolevulinic Δ crescute enorm. Diagnosticul de PAI a fost stabilit şi, chiar dacă tratamentul corect (heminei, glucoza ) a fost administrat, pacienta a decedat după trei săptămâni de la debut prin şoc toxico-septic. Autorii discuta despre diagnosticul de laborator din PAI şi, de asemenea, patogeneza atacului acut de PAI, precum şi mecanismul de producere a leziunilor severe ale sistemului nervos, care este mai puţin înţeles. În concluzie, testele de laborator trebuie efectuate cât mai precoce deoarece neglijarea unui diagnostic de PAI poate avea consecinţe grave pentru pacienţi.
摘要急性间歇性卟啉症(AIP)是一种常染色体显性遗传的代谢性疾病,在胞质亚细胞位置,卟胆色素原(PBG)脱氨酶是血红素生物合成途径中的缺陷酶。这种诊断必须在所有症状不明的成年人中唤起,但一些临床特征是暗示性的:育龄妇女;腹痛;肌肉无力;严重和长期低钠血症;深色或红色尿液。作者提出了一个致命的情况下,39岁的女性谁提出了急性腹痛,随后严重的周围神经系统病变与四肢瘫痪。尿液分析显示卟啉、PBG和Δ氨基乙酰丙酸水平显著升高。确诊为AIP,即使给予正确的治疗(血红素、葡萄糖),患者仍在发病3周后死于感染性休克。作者讨论了AIP的实验室异常,以及AIP急性发作的发病机制以及目前尚不清楚的严重神经系统损伤机制。总之,实验室检查必须尽早进行,如果AIP诊断不及时,可能会对患者造成严重后果。急性间断性卟啉病(PAI)是一种急性代谢性卟啉病,是一种常染色体显性遗传性卟啉病,是一种先天性卟啉缺乏症,是一种先天性卟啉缺乏症。目前诊断的主要症状为:成人病合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并合并。本院对39例原发性PAI患者进行了致命治疗,治疗了1例先兆性硬脑膜腹部急性、晚期的先兆性硬脑膜神经周围性四肢瘫痪。尿学分析:尿学分析;尿学分析;尿学分析;尿学分析;尿学分析;尿学分析;尿学分析;尿学分析;诊断性PAI为稳定型(fost),治疗性(heminei, glucoza)为管理型(fost),镇静型(pacienta)为decedat dupere - trei (sst))为毒血症型(toxico-败血性)。权威的诊断实验室讨论了PAI 的诊断,急性PAI的诊断,急性PAI的诊断,急性PAI的诊断机制,急性PAI的诊断机制,严重的神经系统,急性PAI的诊断机制puţin înţeles。În结论,试验室诊断有效的尿路尿路,尿路尿路,尿路尿路,尿路,尿路,尿路,尿路,尿路,尿路,尿路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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