Łukasz Masior

Dr. Łukasz Masior


Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 August 2023 in Cancers
Verified
Journal Article
Open access
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ŁMŁukasz Masior
Łukasz Masior
MKMaciej Krasnodębski
Maciej Krasnodębski
MKMikołaj Kuncewicz
Mikołaj Kuncewicz
KKKacper Karaban
Kacper Karaban
IJIgor Jaszczyszyn
Igor Jaszczyszyn
MGMichał Grąt
Michał Grąt
Transarterial chemoembolization (TACE) is used as a bridging treatment in liver transplant candidates with hepatocellular carcinoma (HCC). Alpha-fetoprotein (AFP) is the main tumor marker used for HCC surveillance. The aim of this study was to assess the potential of using the AFP change after the first TACE in the prediction of complete tumor necrosis. The study comprised 101 patients with HCC who underwent liver transplantation (LT) after TACE in the period between January 2011 and December 2020. The ΔAFP was defined as the difference between the AFP value before the first TACE and AFP either before the second TACE or the LT. The receiver operator characteristics (ROC) curves were used to identify an optimal cut-off value. Complete tumor necrosis was found in 26.1% (18 of 69) and 6.3% (2 of 32) of patients with an initial AFP level under and over 100 ng/mL, respectively (p = 0.020). The optimal cut-off value of ΔAFP for the prediction of complete necrosis was a decline of ≥10.2 ng/mL and ≥340.5 ng/mL in the corresponding subgroups. Complete tumor necrosis rates were: 62.5% (5 of 8) in patients with an initial AFP < 100 ng/mL and decline of ≥10.2 ng/mL; 21.3% (13 of 61) in patients with an initial AFP < 100 ng/mL and decline of 100 ng/mL and decline of ≥340.5 ng/mL; and null in 20 patients with an initial AFP > 100 ng/mL and decline of <340.5 ng/mL, respectively (p = 0.003). The simple scoring system, based on the initial AFP and AFP decline after the first treatment, distinguished between a high, intermediate and low probability of complete necrosis, with an area under the ROC curve of 0.699 (95% confidence intervals 0.577 to 0.821, p = 0.001). Combining the initial AFP with its change after the first treatment enables early identification of the efficacy of TACE.

19 September 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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KKKonrad Kobryń
Konrad Kobryń
AFAleksandra Frankowska
Aleksandra Frankowska
PRPaweł Rykowski
Paweł Rykowski
MBMateusz Bartkowiak
Mateusz Bartkowiak
AZAndriej Zhylko
Andriej Zhylko
MGMichał Grąt
Michał Grąt
Background/Objectives: The shortage of liver grafts remains a major challenge in transplantation. Full-left-full-right (FLFR) split liver transplantation (SLT) expands the donor pool by providing two grafts for small adult recipients. However, prolonged cold ischemia time (CIT) and ischemia-reperfusion injury (IRI) limit its success. Methods: We report a case of FLFR SLT utilizing ex situ dual hypothermic oxygenated machine perfusion (DHOPE) to mitigate IRI and enhance graft viability. A brain-dead donor’s liver was split under continuous DHOPE, followed by simultaneous transplantation into two adult recipients. Results: Both recipients exhibited stable graft function at one-year follow-up. DHOPE effectively reduced CIT and optimized postoperative recovery, with no major complications beyond Clavien–Dindo Grade IIIb. Conclusions: This is the first reported FLFR SLT using ex situ DHOPE for two adult recipients, demonstrating its feasibility in reducing CIT and improving outcomes. Machine perfusion may become a standard in FLFR SLT.

17 February 2025 in Langenbeck's Archives of Surgery
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Journal Article
Open access
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ŁMŁukasz Masior
Łukasz Masior
MKMaciej Krasnodębski
Maciej Krasnodębski
EKEmilia Kruk
Emilia Kruk
MSMartín de Santibañes
Martín de Santibañes
PUPedro Uad
Pedro Uad
MGMichał Grąt
Michał Grąt
Background Liver resection and lymphadenectomy is a standard procedure in patients with incidental gallbladder cancer. Data regarding laparoscopic approach in this setting are scarce. The aim of this study was to compare laparoscopic and open approach in this population. Methods This was a multicenter retrospective study including 177 patients. The primary outcome measure was overall survival (OS). The secondary outcomes measures were recurrence-free survival (RFS), lymph node yield, operative time, postoperative complications and length of hospital stay. Results Surgery was laparoscopic in 60 (33.9%), including 18 conversions (30.0%). By intention to treat analysis, 3 and 5 year OS were 72.1% and 51.8% after laparoscopic surgery compared to 62.8% and 36.2% after open surgery (p = 0.201). 3- and 5-year RFS were 29.1% and 19.4% after laparoscopic surgery and 28.7% and 19.1% after open surgery (p = 0.697). Severe (grade ≥ 3 ) complications (p = 0.032) and Comprehensive Complication Index (CCI; p = 0.027) were both significantly higher after laparoscopic surgery (p = 0.032), although length of hospital stay was significantly shorter after laparoscopic procedures both on intention-to-treat (median 6 vs. 8 days; p = 0.004) and per protocol analysis (median 6 vs. 8 days; p = 0.004). Conclusions Laparoscopic approach is feasible in patients with gallbladder cancer and may shorten the duration of hospital stay. Synopsis This retrospective cohort study suggests that laparoscopic liver resection is feasible in patients with gallbladder cancer and may shorten the duration of hospital stay. Minimally invasive procedures should be performed by surgeons experienced in laparoscopic liver surgery.

6 August 2024 in BMC Surgery
Verified
Journal Article
Open access
ŁMŁukasz Masior
Łukasz Masior
MKMaciej Krasnodębski
Maciej Krasnodębski
PSPiotr Smoter
Piotr Smoter
MMMarcin Morawski
Marcin Morawski
KKKonrad Kobryń
Konrad Kobryń
MGMichał Grąt
Michał Grąt
IntroductionLiver transplantation (LT) is a well-established method applied for the treatment of various liver diseases, including primary and secondary malignancies, as well as acute liver failure triggered by different mechanisms. In turn, liver failure (PHLF) is the most severe complication observed after liver resection (LR). PHLF is an extremely rare indication for LT. The aim of the present study was to assess the results of LT in patients with PHLF.MethodsRelevant cases were extracted from the prospectively collected database of all LTs performed in our center. All clinical variables, details of the perioperative course of each patient and long-term follow-up data were thoroughly assessed.ResultsBetween January 2000 and August 2023, 2703 LTs were carried out. Among them, six patients underwent LT for PHLF, which accounted for 0.2% of all patients. The median age of the patients was 38 years (range 24-66 years). All patients underwent major liver resection before listing for LT. The 90-day mortality after LT was 66.7% (4 out of 6 patients), and all patients experienced complications in the posttransplant course. One patient required early retransplantation due to primary non-function (PNF). The last two transplanted patients are alive at 7 years and 12 months after LT, respectively.ConclusionsIn an unselected population of patients with PHLF, LT is a very morbid procedure associated with high mortality but should be considered the only life-saving option in this group.