Clinical characteristics in patients with hereditary amyloidosis with Glu54Gln transthyretin identified in the Romanian population

Autor: Andreea Jercan, Amalia Ene, Ruxandra Jurcut, Mirela Draghici, Sorina Badelita, Mihaela Dragomir, Camelia Dobrea, Monica Popescu, Dumitru Jardan, Emanuel Stoica, Speranta Iacob, Ionela Codita, Claudiu Stan, Daniel Coriu
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Orphanet Journal of Rare Diseases, Vol 15, Iss 1, Pp 1-8 (2020)
Druh dokumentu: article
ISSN: 1750-1172
DOI: 10.1186/s13023-020-1309-9
Popis: Abstract Background In Romania, 23 patients have been diagnosed with hereditary transthyretin amyloidosis (ATTRh), 18 of whom have the Glu54Gln mutation. This retrospective cohort included all patients with Glu54Gln-mutated ATTRh who were diagnosed in Romania from 2005 to 2018. Results Of 18 patients, 10 were symptomatic, five were asymptomatic carriers and three died during the study. All originated from North-East Romania. Median age at symptom onset was 45 years; median age at death was 51 years. All patients had cardiac involvement, including changes in biomarkers (mean N-terminal-pro B-type natriuretic peptide: 2815.6 pg/ml), electrocardiography (15% atrial fibrillation, 38% atrioventricular block, 31% right bundle block), and echocardiography (mean interventricular septum: 16 mm, mean left ventricular ejection fraction: 49%). Scintigraphy showed myocardial radiotracer uptake in all patients. In addition, 92% of patients had polyneuropathy at diagnosis and 53% had carpal tunnel syndrome; 69% exhibited orthostatic hypotension and 31% suffered from diarrhea. No renal or liver involvement was observed. Conclusions This is the largest Glu54Gln-mutated ATTRh cohort diagnosed to date, and to our knowledge the first describing this variant worldwide. Clinical features of this variant are early onset, neurological and cardiac involvement, aggressive disease progression and short survival. Early diagnosis and therapeutic intervention have potential to improve prognosis in ATTRh.
Databáze: Directory of Open Access Journals
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