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J Vasc Interv Radiol. 2019 Jun;30(6):866-872.e4. doi: 10.1016/j.jvir.2019.01.005. Epub 2019 Apr 30.

Muscle Gain after Transjugular Intrahepatic Portosystemic Shunt Creation: Time Course and Prognostic Implications for Survival in Cirrhosis.

Author information

1
Charles T. Dotter Department of Interventional Radiology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239.
2
Department of Gastroenterology and Hepatology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239.
3
Charles T. Dotter Department of Interventional Radiology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239. Electronic address: farsad@ohsu.edu.

Abstract

PURPOSE:

To examine the association of transjugular intrahepatic portosystemic shunt (TIPS) creation with muscle gains and patient mortality, and to identify the timeframe of these changes.

MATERIALS AND METHODS:

Patients with cirrhosis undergoing TIPS creation with available abdominal computed tomography before and after TIPS from 2004-2015 were included (n = 76). The primary indications for TIPS included refractory ascites (52.6%) or variceal bleeding (47.4%). Axial truncal muscle area and attenuation were measured at the L4 level using free-hand region of interest technique, and pre- and post-TIPS values were compared. The association of TIPS-related muscle changes with mortality was evaluated using Cox multiple regression. Logistic regression analysis was performed to evaluate associations of baseline muscle area and clinical variables with post-TIPS changes.

RESULTS:

TIPS creation was associated with significant increases in psoas, paraspinal, and total muscle areas (P < .001, 0.004, and 0.002), and psoas muscle attenuation (P = .022) at a median of 13.5 months after TIPS. Maximal muscle gains occurred within 6 months after TIPS creation (P < .001). Muscle gain at 1-year after TIPS was independently associated with lower mortality (psoas hazard ratio [HR] 0.14, P = .016; paraspinal HR 0.15, P = .016; abdominal HR 0.05, P = .005; core HR 0.06, P = .001; and total HR 0.05, P = .003). Baseline demographic or clinical variables were not associated with muscle gain after TIPS.

CONCLUSIONS:

TIPS creation was strongly associated with truncal muscle gains and attenuation in patients with cirrhosis. Maximal muscle gain occurred within 6 months after TIPS creation. TIPS-related increased muscle mass was independently associated with lower patient mortality.

PMID:
31053265
DOI:
10.1016/j.jvir.2019.01.005

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