Nederlands tijdschrift voor geneeskunde · 2009
[Dutch patients with hereditary pancreatitis; high mutation frequency, relatively little pain].
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Derikx Monique H M, te Morsche Rene H M, Jansen Jan B M J, Drenth Joost P H
Аннотация
OBJECTIVE: To assess genetic, clinical and morphological characteristics of hereditary pancreatitis, a rare type of chronic pancreatitis with an early onset of symptoms, which is, among others, caused by mutations in the PRSS1 gene.
DESIGN: Observational cohort study.
METHOD: The study population consisted of 496 patients (27,375 person-years) who were referred to Radboud University Nijmegen Medical Centre for molecular diagnosis of hereditary pancreatitis during period 2000 to 2007. 61 patients with a positive family history of hereditary pancreatitis were selected. Analysis for PRSS1 gene mutations was performed by complete sequence analysis of the exons. All patients received a structured questionnaire.
RESULTS: From 25 families 61 patients were included (2,047 person-years). PRSS1 mutations were detected in 52 patients (85.2%): p.R122H (67.2%), p.N29I (14.8%), p.E79K (1.6%), p.N29T (1.6%). In the 40 patients whose clinical data were known the median age at diagnosis was 10.5 years (range: 0-42 years). Pain was reported in 28 (70% of 40 patients in whom all information was complete). 27 patients (67.5%) were admitted to the hospital once or more due to the attacks of pancreatitis. Exocrine and endocrine dysfunction was seen in 6 patients (15%). 24 patients (60%) had undergone a surgical intervention, 10 of whom had undergone a pancreaticojejunostomy. A family history of pancreatic carcinoma was found in 5 patients (12.5%).
CONCLUSION: The percentage of PRSS1 mutation was high (85.2%) among this Dutch population that was selected on basis of a positive family history of hereditary pancreatitis. Most patients had no chronic pain.
DESIGN: Observational cohort study.
METHOD: The study population consisted of 496 patients (27,375 person-years) who were referred to Radboud University Nijmegen Medical Centre for molecular diagnosis of hereditary pancreatitis during period 2000 to 2007. 61 patients with a positive family history of hereditary pancreatitis were selected. Analysis for PRSS1 gene mutations was performed by complete sequence analysis of the exons. All patients received a structured questionnaire.
RESULTS: From 25 families 61 patients were included (2,047 person-years). PRSS1 mutations were detected in 52 patients (85.2%): p.R122H (67.2%), p.N29I (14.8%), p.E79K (1.6%), p.N29T (1.6%). In the 40 patients whose clinical data were known the median age at diagnosis was 10.5 years (range: 0-42 years). Pain was reported in 28 (70% of 40 patients in whom all information was complete). 27 patients (67.5%) were admitted to the hospital once or more due to the attacks of pancreatitis. Exocrine and endocrine dysfunction was seen in 6 patients (15%). 24 patients (60%) had undergone a surgical intervention, 10 of whom had undergone a pancreaticojejunostomy. A family history of pancreatic carcinoma was found in 5 patients (12.5%).
CONCLUSION: The percentage of PRSS1 mutation was high (85.2%) among this Dutch population that was selected on basis of a positive family history of hereditary pancreatitis. Most patients had no chronic pain.