Summary
Thirty-four patients with chronic calcified pancreatitis were evaluated clinically and biochemically (at a time when painful relapses were not present) every 9 mo for 3 yr; 25 of them were also studied at 4 and 9 yr. Serum elastase-1, trypsin, lipase, and amylase in the same sera were measured at each visit; levels on entry and variations during the study were compared with the clinical and functional data of the patients. On entry, low levels of elastase-1 were found in 11.7% of the patients, high levels in 41.1%; in contrast, high levels of trypsin and lipase were found in only a small number of patients (5.8 and 11.7%, respectively), whereas low levels were present in a substantial number (47.8 and 32.3% for trypsin and lipase, respectively). Over time, we found a significant (p = 0.000002) reduction in elastase-1 levels. Such reduction was not found for trypsin, lipase, or amylase. The reduction of serum elastase-1 was significantly (p< 0.003) more frequent in patients presenting a reduction in painful relapses than in patients with a stable or increased attack rate; this association was weaker (p<0.05) for lipase and trypsin, and absent for amylase. No correlation was found between circulating enzymes and either alcohol consumption or age of patients. In patients with severe exocrine impairment, low levels of elastase were found in only 20% of the cases, whereas trypsin and lipase were reduced in 73.3 and 53.3% of the cases, respectively. In conclusion, in chronic pancreatitis patients, when serum is sampled in the absence of painful relapses, trypsin and lipase serum levels are often low, mainly in the presence of functional impairment; elastase-1 is often increased and mirrors the frequency of painful relapses.
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Benini, L., Caliari, S., Vaona, B. et al. Variations in time of serum pancreatic enzyme levels in chronic pancreatitis and clinical course of the disease. Int J Pancreatol 8, 279–287 (1991). https://doi.org/10.1007/BF02952721
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DOI: https://doi.org/10.1007/BF02952721