• Paolo Ventura, Maria Domenica Cappellini, Gianfranco Biolcati, Claudio Carmine Guida, Emilio Rocchi, and Gruppo Italiano Porfiria (GrIP).
• Centre for Porphyrias, Division of Internal Medicine II, Department of Medical and Surgical Science - University of Modena and Reggio Emilia, Policlinico Hospital, Modena, Italy. Electronic address: paoloven@unimore.it.
• Eur. J. Intern. Med. 2014 Jul 1; 25 (6): 497-505.

AbstractAcute porphyrias are a heterogeneous group of metabolic disorders resulting from a variable catalytic defect of four enzymes out of the eight involved in the haem biosynthesis pathway; they are rare and mostly inherited diseases, but in some circumstances, the metabolic disturbance may be acquired. Many different environmental factors or pathological conditions (such as drugs, calorie restriction, hormones, infections, or alcohol abuse) often play a key role in triggering the clinical exacerbation (acute porphyric attack) of these diseases that may often mimic many other more common acute medical and neuropsychiatric conditions and whose delayed diagnosis and treatment may be fatal. In order to obtain an accurate diagnosis of acute porphyria, the knowledge and the use of appropriate diagnostic tools are mandatory, even in order to provide as soon as possible the more effective treatment and to prevent the use of potentially unsafe drugs, which can severely precipitate these diseases, especially in the presence of life-threatening symptoms. In this paper, we provide some recommendations for the diagnostic steps of acute porphyrias by reviewing literature and referring to clinical experience of the board members of the Gruppo Italiano Porfiria (GrIP).Copyright © 2014 European Federation of Internal Medicine. Published by Elsevier B.V. All rights reserved.

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