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I Lecointe

Publications and source records attributed to I Lecointe.

4 recordsLinked to original sources
PubMed1993

Assessment of portal contribution to liver perfusion by quantitative sequential scintigraphy and Doppler ultrasound in alcoholic cirrhosis. Diagnostic value in the detection of portal hypertension.

To assess the portal contribution to liver perfusion, we carried out quantitative sequential scintigraphy in 110 patients with alcoholic cirrhosis (22 Child-Pugh class A, 39 class B, 49 class C) and 15 normal subjects. Duplex Doppler ultrasound found a type of intrahepatic circulation that made the standard scintigraphic procedure inaccurate in four cases of cirrhosis, which were reevaluated. Portal contribution to liver perfusion was lower in cirrhotics than in normal subjects (48.7 +/- 29% versus 78.4 +/- 6%; p < 0.001). The sensitivity of scintigraphy in detecting portal hypertension, based on portal contribution < or = 66%, was 61.8% (with a 100% specificity) compared with 66.7% for endoscopy (diagnosis based on existence of varices). The overall sensitivity of the two tests together was 86.1%. Portal contribution to liver perfusion was inversely correlated to Child-Pugh score (r = 0.53; p < 0.001), to prothrombin time (r = 0.52; p < 0.001), and to hepatic venous pressure gradient (r = 0.43; p < 0.001) and positively correlated to albuminemia (r = 0.42; p < 0.001). Concurrent alcoholic hepatitis and the existence of large portosystemic collaterals were related to a decrease in portal contribution to liver perfusion. We conclude that quantitative sequential scintigraphy, which shows a direct relationship between portal contribution to liver perfusion, on the one hand, and the amount of portosystemic shunting, the progression of liver disease, and/or acute liver injury, on the other, could serve as a diagnostic test for portal hypertension. The addition of scintigraphy improves the overall sensitivity of endoscopy.

Collateral Circulation↗
PubMed1993

[Contribution of liver biopsy and serology of hepatitis C virus to the diagnosis of a moderate and prolonged elevation of aminotransferases].

The aim of this study was to evaluate the diagnostic usefulness of percutaneous liver biopsy and screening for hepatitis C virus antibodies with 1st and 2nd generation ELISA in asymptomatic blood donors with persistent (> 1 year) and moderate elevation (> 1.5 times the upper limit of normal) of serum alanine aminotransferase. The diagnosis was established from clinical, biological and ultrasound data before biopsies were obtained, then compared to the histological diagnosis. Thirty one of 56 blood donors who satisfied the preceding criteria accepted liver biopsy and were subsequently included in the study. An accurate diagnosis was proposed before biopsy in 20 cases. This was in agreement with the histological results in 19 cases but in 2 of these, unexpected lobular hepatitis was associated with the expected steatosis. Positive hepatitis C virus tests corresponded to chronic hepatitis in all cases (n = 5). No accurate diagnosis could be proposed in the 11 remaining cases owing to the lack of evidence of any etiology (n = 4) or because several potential etiologies were possible for the same subject (n = 7). Histological diagnoses were: isolated steatosis (n = 12), steatosis associated with lobular hepatitis (n = 7) or with chronic persistent hepatitis (n = 1), chronic active (n = 2) or chronic persistent hepatitis (n = 3), alcoholic hepatitis (n = 2), hemochromatosis (n = 1), and normal liver (n = 3). Liver biopsy is essential to the accurate etiological diagnosis of persistent and moderate elevation of aminotransferases despite hepatitis virus C tests which are associated with the correct diagnosis of chronic hepatitis in 16% of cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗