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  • Title: Effect of meal intake for evaluating hepatic artery by Doppler ultrasonography in liver transplants: Does fasting matter for screening hepatic artery due to hemodynamic changes in splanchnic circulation?
    Author: Ulu Öztürk F, Tezcan Ş, Ayvazoğlu Soy EH, Uslu N, Haberal M.
    Journal: Clin Transplant; 2022 Jul; 36(7):e14674. PubMed ID: 35419884.
    Abstract:
    PURPOSE: The aim of this study is to assess the utility of fasting on Doppler ultrasonography findings of hepatic artery in liver transplants. METHODS: Liver transplant patients without vascular abnormalities were prospectively evaluated between December 2017 and January 2020. Doppler sonography was used to describe hemodynamic changes in response to a standard meal. The diameter, peak systolic velocity, blood flow, resistive index (RI) of the main hepatic artery and portal vein peak velocity were measured. RESULTS: The mean hepatic arterial diameter of 44 patients was higher in the fasting group (4.5 mm) than in the postprandial group (3.3 mm) (p < .05). The mean hepatic arterial blood flow decreased (from .276 to .127 L/min) and hepatic arterial RI increased (from .66 to .71) following meal ingestion (p < .05). Hepatic arterial velocity was significantly lower and portal venous velocity was higher after oral intake. CONCLUSION: Meal ingestion has an important effect on hepatic artery Doppler features in liver transplants. Therefore, Doppler ultrasound evaluation should be considered after appropriate fasting due to postprandial responses of liver transplant.
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