Devillers Monique J C, Pluimers Johanna K F, van Hooff Maria C, Doukas Michail, Polak Wojciech G, de Man Robert A, Sonneveld Milan J, Boonstra Andre, den Hoed Caroline M
Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands.
Department of Pathology, Erasmus MC University Medical Center, 3000 CA Rotterdam, The Netherlands.
Cancers (Basel). 2023 Dec 19;16(1):4. doi: 10.3390/cancers16010004.
INTRODUCTION: AFP and the RETREAT score are currently used to predict HCC recurrence after LT. However, superior discriminating models are needed for low AFP populations. The aim of this study is to investigate the predictive value of PIVKA-II on recurrence-free survival after LT in a low AFP population and microvascular invasion on explant. METHODS: A retrospective cohort study including all consecutive patients transplanted for HCC between 1989 and 2019 in the Erasmus MC University Medical Center in Rotterdam, the Netherlands, was used. AFP and PIVKA-II levels were determined in serum samples collected at the time of transplantation. Data on tumor load and microvascular invasion were retrieved from patients' records. RESULTS: The study cohort consisted of 121 patients, with HCC recurrence in 15 patients (12.4%). The median AFP was 7.7 ng/mL (4.4-20.2), and the median PIVKA-II was 72.0 mAU/mL (41.0-213.5). Patients with low AFP (≤8 ng/mL) and PIVKA-II (≤90 mAU/mL) had a 5-year recurrence-free survival of 100% compared to 85.7% in patients with low AFP and high PIVKA-II ( = 0.026). Regardless of the AFP level, patients within the Milan criteria (based on explant pathology) with a low PIVKA-II level had a 5-year recurrence-free survival of 100% compared to patients with a high PIVKA-II level of 81.1% ( = 0.002). In patients with microvascular invasion, the AUC for PIVKA-II was slightly better than the AUC for AFP (0.775 vs. 0.687). CONCLUSIONS: The dual model of PIVKA-II ≤ 90 mAU/mL with either AFP ≤ 8 ng/mL or with patients within the Milan criteria identifies patient groups which can be exempted from HCC surveillance after LT in a low AFP population. PIVKA-II may be a better predictor for explant microvascular invasion than AFP and could play a role in future models identifying LT candidates with the highest risk for HCC recurrence.
引言:甲胎蛋白(AFP)和RETREAT评分目前用于预测肝移植(LT)后肝癌(HCC)复发。然而,对于AFP水平较低的人群,需要更优的鉴别模型。本研究旨在探讨异常凝血酶原(PIVKA-II)对低AFP人群LT后无复发生存率的预测价值,以及对移植肝微血管侵犯的预测价值。 方法:采用回顾性队列研究,纳入1989年至2019年在荷兰鹿特丹伊拉斯姆斯大学医学中心接受HCC移植的所有连续患者。在移植时采集的血清样本中测定AFP和PIVKA-II水平。从患者记录中获取肿瘤负荷和微血管侵犯的数据。 结果:研究队列包括121例患者,15例(12.4%)出现HCC复发。AFP中位数为7.7 ng/mL(4.4 - 20.2),PIVKA-II中位数为72.0 mAU/mL(41.0 - 213.5)。AFP低(≤8 ng/mL)且PIVKA-II低(≤90 mAU/mL)的患者5年无复发生存率为100%,而AFP低但PIVKA-II高的患者为85.7%(P = 0.026)。无论AFP水平如何,符合米兰标准(基于移植肝病理)且PIVKA-II水平低的患者5年无复发生存率为100%,而PIVKA-II水平高的患者为81.1%(P = 0.002)。在有微血管侵犯的患者中,PIVKA-II的曲线下面积(AUC)略优于AFP(0.775对0.687)。 结论:PIVKA-II≤90 mAU/mL与AFP≤8 ng/mL或符合米兰标准的患者组成的双重模型,可识别出低AFP人群LT后可免于HCC监测的患者组。PIVKA-II可能是比AFP更好的移植肝微血管侵犯预测指标,并可能在未来识别HCC复发风险最高的LT候选者的模型中发挥作用。
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