Floderus Y, Shoolingin- 1 Jordan P, Harper P. Acute intermittent porphyria in Sweden. Molecular, functional and clinical consequences of some new mutations . Porphyria, Acute Intermittent. Porfyri, akut intermittent. Engelsk definition. An autosomal dominant porphyria that is due to a deficiency of. porphyria intermittent acute; AIP; pyrroloporphyria; AIP – acute intermittent . ruwiki Острая перемежающаяся порфирия; svwiki Akut intermittent porfyri; thwiki.

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MRI reveals reversible lesions resembling posterior reversible encephalopathy in porphyria. Evidence of an increased concentration of PBG in urine, using a specific quantitative assay, is essential to establish an unequivocal diagnosis of acute porphyria in a symptomatic individual. Prevention of Secondary Complications End-stage renal disease, which is thought to result from chronic systemic arterial hypertension, may be delayed kntermittant effective blood pressure control [ Andersson et al b ].

Determination of PBG in urine. A population-based study in northern Sweden. This product is supplied as a dried powder, which must be reconstituted with sterile water immediately before intravenous injection and administered over minutes.

The following section deals with genetic intsrmittant assessment and the use of family history and genetic testing to clarify genetic status for family members.

Revista Aleph in Spanish.

These symptoms resolve after the attack, though anxiety may persist. Dextrose saline is preferred. If, after receiving full information about acute porphyria and discussion of the likely consequences with their doctor, they do decide to start on the contraceptive pill, they should have a urine test for PBG. All individuals with a genetic change in the gene Potfiri that predisposes to AIP are at risk of developing acute attacks; however, most never have symptoms and are said to have latent or presymptomatic AIP.


See Genetic Counseling for issues related to testing of at-risk relatives for genetic counseling purposes. When neither parent of a proband with an autosomal dominant condition has clinical evidence of the disorder or the pathogenic variant, it is likely that the proband has a de novo interimttant variant.

To date, five children with homozygous HMBS pathogenic variants have been described.

Pathogenesis and treatment of acute intermittent porphyria.

University of Washington, Seattle; Recommendations for the evaluation of parents of a intermittnt with an apparent de novo pathogenic variant include urinary PBG determination or, if the proband’s HMBS pathogenic variant has been identified, molecular genetic testing of HMBS. Molecular Genetic Testing Gene. Seizures often accompany this disease. Other long-term complications are chronic renal failure, hepatocellular carcinoma HCCand hypertension.

The minimum effective infusion frequency should be employed, usually a weekly dose of hemin infused via an in-dwelling venous catheter. Patients should be advised to register with an organization that provides warning jewelry in case of an accident e. Depo-Provera and implanted hormone preparations are particularly dangerous — because they cannot be removed if an attack starts — and should never be used.

Acute intermittent porphyria – Wikipedia

A strong correlation between the presence of any of the mutations and a low PBG-D activity has intemittant observed. Cutaneous manifestations of porphyria do not occur in AIP. Prenatal testing is possible but is rarely requested because of the low clinical penetrance and favorable clinical outcome for the great majority of symptomatic adults.


There are no pathognomonic signs or symptoms. Assure that adequate nutrition is provided by a normal balanced diet. In Sweden the incidence and prevalence of AIP are about four times higher than in Europe due to a founder effect originating in Lappland [ Floderus et al ]. Acta Obstet Gynecol Scand.

acute intermittent porphyria – Wikidata

Renal symptomatology in patients with acute intermittent porphyria. Demonstration that an increased PBG concentration is caused by AIP requires exclusion of other acute porphyrias by analysis of porphyrins in stool and plasma.

Attacks of acute porphyria may be precipitated by endogenous or exogenous factors [ Anderson et al ]. Prolonged fasting should be avoided during labor and delivery as should the use of unsafe drugs, for example, ergometrine. Journal of Inherited Metabolic Disease. The cause of hyponatremia is not clear; both SIADH syndrome of inappropriate antidiuretic hormone release and renal salt wasting have been proposed as mechanisms.