RESUMO
Toxic epidermal necrolysis or Lyell's syndrome is a rare entity with strong compromise of immune system. It is a hypersensitivity reaction secondary to the use of specific drugs and other triggers. Erythematous lesions of bullous aspect characterize the clinical picture affecting all layers of the skin, scaly and widespread in distribution and progression. Sometimes life threatening, generate a severe inflammatory and systemic reaction with multiple organ dysfunction. Treatment encompasses three objectives: identification and suspension of triggers, general clinical support and therapy to the skin lesions. Immune therapy is controversial and not supported by solid scientific evidence. We report a case that summarizes all aspects of this potentially lethal disease.
Assuntos
Síndrome de Stevens-Johnson , Feminino , Humanos , Pessoa de Meia-Idade , Índice de Gravidade de Doença , Síndrome de Stevens-Johnson/diagnóstico , Síndrome de Stevens-Johnson/terapiaRESUMO
In patients with acute cerebral injury, polyuric states can potentially trigger, maintain and aggravate the primary neurological damage, due to hypovolemia, arterial hypotension and alterations of osmolarity. The true incidence of the condition in this population is unknown. A widely validated definition of polyuric state is lacking and its etiology is multifactorial. There are two principal classes of polyuria: (a) aqueous polyuria with diabetes insipidus as the main cause; and (b) osmotic polyuria in which sodium, glucose or ureaplay the main role. Polyuric states are in close association with disorders of water and sodium metabolism and with alterations in acid-base balance. A detailed analysis of the history, clinical picture and simple laboratory determinations in blood and urine, are required for an adequate assessment of these polyuric states. The problem must be faced with pathophysiological reasoning and a systematic and sequential approach, because each disorder needs a specific therapy.