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1.
J Surg Oncol ; 96(1): 26-31, 2007 Jul 01.
Article in English | MEDLINE | ID: mdl-17345616

ABSTRACT

BACKGROUND AND OBJECTIVES: It was proposed that occult pancreaticobiliary reflux (OPBR) was associated with precancerous mucosal changes in the gallbladder, hence the importance of this disorder. There are no published reports investigating the incidence of OPBR in patients operated on for the entire spectrum of benign gallbladder diseases and gallbladder cancer. Our aim was to determine the incidence of OPBR and measure the levels of active pancreatic enzymes (amylase and lipase) in gallbladder bile of patients undergoing cholecystectomy for benign and malignant gallbladder diseases. METHODS: One hundred eight patients with normal pancreaticobiliary junction evidenced by operative cholangiography were included in the study. RESULTS: According to gallbladder bile amylase and lipase levels, 84.2% and 89% patients respectively had OPBR. OPBR was present in all gallbladder cancer patients; in these patients the biliary levels of amylase and lipase were significantly higher than the levels found in patients with benign gallbladder pathology (P < 0.0001). CONCLUSIONS: OPBR could lead to inflammatory changes of the biliary epithelium and progress towards the development of precancerous mucosal changes and gallbladder cancer. The reason why such high levels of pancreatic enzymes are regurgitated into the biliary tree of patients with gallbladder cancer should be clarified.


Subject(s)
Amylases/analysis , Bile Duct Diseases/etiology , Bile Reflux/etiology , Bile/enzymology , Gallbladder Diseases/complications , Gallbladder Neoplasms/complications , Lipase/analysis , Pancreatic Diseases/etiology , Adult , Aged , Aged, 80 and over , Bile Duct Diseases/enzymology , Bile Reflux/enzymology , Cholecystitis/complications , Cholecystitis/enzymology , Female , Gallbladder Diseases/enzymology , Humans , Male , Middle Aged , Pancreatic Diseases/enzymology
2.
Arq. gastroenterol ; Arq. gastroenterol;40(4): 233-238, out.-dez. 2003. tab
Article in Portuguese | LILACS | ID: lil-359884

ABSTRACT

RACIONAL: Várias doenças abdominais podem cursar com aumento de amilasemia e lipasemia. OBJETIVO: Avaliar a validade da amilasemia e lipasemia para os diagnósticos diferenciais entre pancreatite aguda/pancreatite crônica agudizada, doenças das vias biliares, úlcera gastroduodenal perfurada e apendicite aguda. PACIENTES E MÉTODOS: Foram avaliados, prospectivamente, 38 pacientes com pancreatite aguda/pancreatite crônica agudizada, 35 com doenças das vias biliares, 17 com úlcera gastroduodenal perfurada e 44 com apendicite aguda, com idade média (desvio padrão) de 42,4 ± 17,7, 46,7 ± 18,3, 47,8 ± 12 e 33,7 ± 17,8 anos, respectivamente. A amilasemia e a lipasemia foram determinadas à admissão no pronto-socorro. RESULTADOS: Para o diagnóstico de pancreatite aguda/pancreatite crônica agudizada, quando o nível de corte da amilasemia variou entre o limite superior de referência e 5 vezes este limite, a sensibilidade diminuiu de 92 por cento para 74 por cento, a especificidade aumentou de 85 por cento para 99 por cento, o valor preditivo positivo aumentou de 71 por cento para 97 por cento e o valor preditivo negativo diminuiu de 96 por cento para 91 por cento. Para a lipasemia valores semelhantes foram obtidos para sensibilidade e valor preditivo negativo, mas a especificidade e o valor preditivo positivo foram mais baixos. Quando se considerou amilasemia ou lipasemia elevadas, houve pequeno aumento na sensibilidade e no valor preditivo negativo. CONCLUSÕES: Para o diagnóstico de pancreatite aguda/pancreatite crônica agudizada, 1) o melhor nível de corte para ambos os testes foi o de duas vezes o limite superior de referência; 2) as sensibilidades da amilasemia e da lipasemia foram semelhantes; 3) a especificidade e o valor preditivo positivo da amilasemia foram ligeiramente maiores do que as da lipasemia; 4) a sensibilidade, mas não a especificidade, aumentou quando pelo menos uma das enzimas estava elevada.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Abdominal Pain/diagnosis , Abdominal Pain/enzymology , Amylases/blood , Lipase/blood , Pancreatitis/diagnosis , Pancreatitis/enzymology , Acute Disease , Abdominal Pain/etiology , Appendicitis/complications , Appendicitis/diagnosis , Appendicitis/enzymology , Bile Duct Diseases/complications , Bile Duct Diseases/diagnosis , Bile Duct Diseases/enzymology , Chronic Disease , Diagnosis, Differential , Prospective Studies , Pancreatitis/complications , Peptic Ulcer Perforation/complications , Peptic Ulcer Perforation/diagnosis , Peptic Ulcer Perforation/enzymology , Sensitivity and Specificity
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