STEVEN BROZINSKY, M.D.; ELIAS PUROW, M.D.; SAUL J. GROSBERG, M.D.
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To the editor: We, too, are impressed with the diagnostic yield and low morbidity of percutaneous transhepatic cholangiography with the Chiba needle as described by Pereiras and colleagues (Ann Intern Med 86:562-568, 1977). However, their paper raises some important questions.
1. The success rate of (95.6%) of entering nondilated systems is considerably greater than in previous reports (56% to 89%) (1-3). Assuming the same degree of competence existed, one wonders whether their increased success was due to excessive passes into the liver. They state that "if after seven passes the biliary tree is not visualized, it is assumed that we
BROZINSKY S, PUROW E, GROSBERG SJ. Percutaneous Transhepatic Cholangiography. Ann Intern Med. ;87:795–796. doi: 10.7326/0003-4819-87-6-795_2
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Published: Ann Intern Med. 1977;87(6):795-796.
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