Controlled attenuation parameter and alcoholic hepatic steatosis: diagnostic accuracy and role of alcohol detoxification
Background & Aims - Controlled attenuation parameter (CAP) is a novel non-invasive measure of hepatic steatosis, but it has not been evaluated in alcoholic liver disease. Therefore, we aimed to validate CAP for the assessment of biopsy-verified alcoholic steatosis and to study the effect of alco...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
16 January 2018
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| In: |
Journal of hepatology
Year: 2018, Jahrgang: 68, Heft: 5, Pages: 1025-1032 |
| ISSN: | 1600-0641 |
| DOI: | 10.1016/j.jhep.2017.12.029 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1016/j.jhep.2017.12.029 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0168827818300163 
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| Verfasserangaben: | Maja Thiele, Vanessa Rausch, Gabriele Fluhr, Maria Kjærgaard, Felix Piecha, Johannes Mueller, Beate Katharina Straub, Monica Lupșor-Platon, Victor De-Ledinghen, Helmut Karl Seitz, Sönke Detlefsen, Bjørn Madsen, Aleksander Krag, Sebastian Mueller |
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| 245 | 1 | 0 | |a Controlled attenuation parameter and alcoholic hepatic steatosis |b diagnostic accuracy and role of alcohol detoxification |c Maja Thiele, Vanessa Rausch, Gabriele Fluhr, Maria Kjærgaard, Felix Piecha, Johannes Mueller, Beate Katharina Straub, Monica Lupșor-Platon, Victor De-Ledinghen, Helmut Karl Seitz, Sönke Detlefsen, Bjørn Madsen, Aleksander Krag, Sebastian Mueller |
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| 520 | |a Background & Aims - Controlled attenuation parameter (CAP) is a novel non-invasive measure of hepatic steatosis, but it has not been evaluated in alcoholic liver disease. Therefore, we aimed to validate CAP for the assessment of biopsy-verified alcoholic steatosis and to study the effect of alcohol detoxification on CAP. - Methods - This was a cross-sectional biopsy-controlled diagnostic study in four European liver centres. Consecutive alcohol-overusing patients underwent concomitant CAP, regular ultrasound, and liver biopsy. In addition, we measured CAP before and after admission for detoxification in a separate single-centre cohort. - Results - A total of 562 patients were included in the study: 269 patients in the diagnostic cohort with steatosis scores S0, S1, S2, and S3=77 (28%), 94 (35%), 64 (24%), and 34 (13%), respectively. CAP diagnosed any steatosis and moderate steatosis with fair accuracy (area under the receiver operating characteristic curve [AUC] ≥S1=0.77; 0.71-0.83 and AUC ≥S2=0.78; 0.72-0.83), and severe steatosis with good accuracy (AUC S3=0.82; 0.75-0.88). CAP was superior to bright liver echo pattern by regular ultrasound. CAP above 290dB/m ruled in any steatosis with 88% specificity and 92% positive predictive value, while CAP below 220dB/m ruled out steatosis with 90% sensitivity, but 62% negative predictive value. In the 293 patients who were admitted 6.3days (interquartile range 4-6) for detoxification, CAP decreased by 32±47dB/m (p<0.001). Body mass index predicted higher CAP in both cohorts, irrespective of drinking pattern. Obese patients with body mass index ≥30kg/m2 had a significantly higher CAP, which did not decrease significantly during detoxification. - Conclusions - CAP has a good diagnostic accuracy for diagnosing severe alcoholic liver steatosis and can be used to rule in any steatosis. In non-obese but not in obese, patients, CAP rapidly declines after alcohol withdrawal. - Lay summary - CAP is a new ultrasound-based technique for measuring fat content in the liver, but has never been tested for fatty liver caused by alcohol. Herein, we examined 562 patients in a multicentre setting. We show that CAP highly correlates with liver fat, and patients with a CAP value above 290dB/m were highly likely to have more than 5% fat in their livers, determined by liver biopsy. CAP was also better than regular ultrasound for determining the severity of alcoholic fatty-liver disease. Finally, we show that three in four (non-obese) patients rapidly decrease in CAP after short-term alcohol withdrawal. In contrast, obese alcohol-overusing patients were more likely to have higher CAP values than lean patients, irrespective of drinking. | ||
| 650 | 4 | |a Alcohol detoxification | |
| 650 | 4 | |a Alcoholic liver disease | |
| 650 | 4 | |a Controlled attenuation parameter | |
| 650 | 4 | |a Diagnostic test | |
| 650 | 4 | |a Fatty liver | |
| 650 | 4 | |a FibroScan | |
| 650 | 4 | |a Non-invasive | |
| 650 | 4 | |a Sensitivity | |
| 650 | 4 | |a Specificity | |
| 650 | 4 | |a Steatohepatitis | |
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| 700 | 1 | |a Mueller, Sebastian |e VerfasserIn |0 (DE-588)115640746X |0 (DE-627)1019235071 |0 (DE-576)502163038 |4 aut | |
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