Heterogeneity of follow‐up procedures in French and Belgian patients with treated hereditary tyrosinemia type 1: results of a questionnaire and proposed guidelines

• DOI: 10.1007/s10545-011-9429-y
• Publication Date: 2011-12-13T11:51:16Z
• Authors: Manuel Schiff; Pierre Broue; Brigitte Chabrol; Corinne De Laet; Dalila Habes; Karine Mention; Jacques Sarles; Anne Spraul; Vassili Valayanno...; Hélène Ogier de B...
• Keywords: Génétique clinique; Tyrosinemias; Disease Management; Kidney; Long-Term Care; 3. Good health; 03 medical and health sciences; 0302 clinical medicine; Belgium; Liver; Surveys and Questionnaires; Practice Guidelines as Topic; Humans; Tyrosine; France; Biologie; Follow-Up Studies

AbstractThe 1991 introduction of 2‐(2‐nitro‐4‐trifluoro‐methylbenzyol)‐1,3 cyclohexanedione (NTBC) as a treatment for hereditary tyrosinemia type 1 (HT‐1), a disorder of tyrosine catabolism, has radically modified the natural history of this disorder. Despite the dramatic improvements in survival, outcomes and quality of life seen with NTBC treatment, HT‐1 remains a chronic disorder with several long‐term complications, including, a persistent (albeit low) risk of hepatocellular carcinoma and suboptimal neuropsychological outcomes. There remain unsolved key‐questions concerning the long‐term outcomes of patients with HT‐1, which closely depend on the quality of follow‐up in these patients. In the absence of published guidelines, we investigated the follow‐up methods used for French and Belgian patients with HT‐1. A simple questionnaire providing a rapid overview of follow‐up procedures was sent to the 19 physicians in charge of HT‐1 patients treated with NTBC and low‐tyrosine diet in France and Belgium. Several areas of heterogeneity (especially liver imaging, slit lamp examination, neuropsychological evaluation and maximal plasma tyrosine level accepted) were observed. In an attempt to improve long‐term management and outcome of patients with HT‐1, we proposed follow‐up recommendations.