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Transient elastography of liver: Could it be a guide for diagnosis and management strategy in hepatic veno-occlusive disease (sinusoidal obstruction syndrome)?

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TRANSFUSION AND APHERESIS SCIENCE
卷 61, 期 1, 页码 -

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.transci.2022.103370

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Veno-Occlusive disease; Sinusoidal obstruction syndrome; Transient elastography

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Hepatic veno-occlusive disease, a rare and life-threatening complication of transplantation, can be diagnosed and monitored early using liver stiffness measurement. This non-invasive imaging method shows promise in improving patient outcomes and survival rates.
Hepatic veno-occlusive disease (VOD), also termed sinusoidal obstruction syndrome (SOS), is a rare and life threatening complication of hematopoetic stem cell transplantation (HSCT). Many conditions can mimic the clinical signs of VOD/SOS. Differential diagnosis and diagnosis of the disease at an early stage is important, since the severe form of the disease has higher mortality rates and early-initiated specific treatment has better response rates. A sensitive and specific non-invasive imaging technique that can diagnose the disease at an early stage is still an unmet need today. We aimed to determine the role of liver stiffness measurement (LSM) with transient elastograph (TE) for the diagnosis of VOD/SOS after allogeneic HSCT. Between January 2019 and October 2021, a total of 49 patients underwent allogeneic HSCT and were retrospectively analyzed. Thirty-one adult patients who had a two or more LSM value were included in the study. Revised European Society for Blood and Marrow Transplantation (EBMT) was the criteria used for the diagnosis of VOD/SOS. Two of 31 patients developed VOD/ SOS (6.4 %). Very high LSM values were detected in all patients who developed VOD/SOS. Early and specific VOD/SOS treatment resulted in improvement of LSM values together with other related features. However, LSM values did not increase significantly in patients with high a bilirubin level (>= 2 mg/dl) without VOD/SOS. This study demonstrates that TE might be a promising non-invasive imaging method for diagnosis, follow-up and differential diagnosis of this dismal complication of HSCT. Yet, these results need to be supported by prospective studies.

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