晚钠电流的魅影--从交感性 T 波到Takotsubo 综合征

交感性 T 波是一类与交感应激有关的心脏电生理异常，而 Takotsubo 综合征包含了心电生理异常和心脏机械功能异常两方面。二者有共同的发病机制，包括交感兴奋、晚钠电流（late sodium current，ⅠNaL ）及钙调蛋白介导的心肌细胞电生理异常等。它们可能是同一种疾病不同的临床表现形式。     

Ibuprofen Associated Acute Vanishing Bile Duct Syndrome and Toxic Epidermal Necrolysis in an Infant

Acute vanishing bile duct syndrome, a rare but rapidly progressive destruction of the intrahepatic bile ducts with unknown pathogenesis, is most often a drug- or toxin-related. Toxic epidermal necrolysis is a serious dermatologic condition and a potentially life threatening disease, which is drug or infection induced. Ibuprofen associated acute vanishing bile duct syndrome and toxic epidermal necrolysis have not been reported previously in infants. We report a 7-month-old infant with ibuprofen associated toxic epidermal necrolysis, followed by severe and rapidly progressive vanishing bile duct syndrome. She recovered totally with supportive care.     

Syndrome de Lowe révélé par une cataracte congénitale avec anomalies cérébrales de diagnostic anténatal : à propos d’un cas

Congenital cataract is a rare disease whose incidence is estimated to 0.5% of birth in France. A study of the literature shows that congenital cataract is idiopathic in 50% of cases, hereditary forms representing 25% of cases. Other causes of congenital cataract are represented by viral embryofoetopathies acquired during pregnancy, metabolic disorders and chromosomal aberrations within the scope of malformative syndromes. The authors report the case of a neonatal diagnosis of Lowe syndrome suspected by the discovery of bilateral cataract initially isolated. The morphological exploration was completed by secondary brain abnormalities (periventricular lesions). The etiological prenatal exploration was negative. Lowe syndrome is a rare cause of antenatal cataract, which so far only one case has been reported.