Wojciech Majewski

Prof. Wojciech Majewski

orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

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

Representative Publications

View All Publications
1 October 2009 in Clinical Oncology
Verified
Journal Article
Closed access
WMWojciech Majewski
Wojciech Majewski
RTRafal Tarnawski
Rafal Tarnawski

1 September 2005 in Radiotherapy and Oncology
Verified
Journal Article
Closed access
WMWojciech Majewski
Wojciech Majewski
SMStanislaw Majewski
Stanislaw Majewski
AMAdam Maciejewski
Adam Maciejewski
ZKZofia Kolosza
Zofia Kolosza
RTRafal Tarnawski
Rafal Tarnawski

15 February 2017 in BMC Ophthalmology
Verified
Journal Article
Open access
PDF file
WRWojciech Rokicki
Wojciech Rokicki
JZJolanta Zalejska-Fiolka
Jolanta Zalejska-Fiolka
DPDorota Pojda-Wilczek
Dorota Pojda-Wilczek
AHAlicja Hampel
Alicja Hampel
WMWojciech Majewski
Wojciech Majewski
EMEwa Mrukwa-Kominek
Ewa Mrukwa-Kominek
Oxidative stress contributes to both intraocular pressure regulation and glaucomatous neuropathy. The systemic redox status (solitary determination) was examined in primary open-angle glaucoma (POAG) patients with cataract and nonglaucomatous cataract patients. Cataract-matched group comparisons appear more precise in the context of oxidative stress evaluation. The aim of this study was to establish if systemic oxidative status in POAG patients was elevated compared with the cataract only subjects. The study included patients with primary open angle glaucoma (POAG group, n = 30) and controls (non POAG group, n = 25). Serum concentration of lipofuscine (LPS), malondialdehyde (MDA) and activity of total superoxide dismutase (SOD), and its mitochondrial (Mn-SOD) and cystolic (Cu,Zn-SOD) isoform were measured. Total oxidant state (TOS) and total antioxidant capacity (TAC) in blood were also evaluated. Significant increase of LPS (p = 0.0002) and MDA (p = 0.005) concentration was observed in glaucomatous patients as compared with controls. Total SOD activity was significantly lowered in the glaucoma group (p = 0.003); serum level of Mn-SOD was significantly lower in glaucoma patients (p = 0.048) however, Cu,Zn-SOD was not. Glaucoma patients presented elevated mean TOS (p = 0.016). Both groups presented with comparable TAC. Systemic redox balance of cataract patients was significantly altered in the course of glaucoma.

13 February 2023 in Cancers
Verified
Journal Article
Open access
PDF file
MMMarcin Miszczyk
Marcin Miszczyk
MKMałgorzata Kraszkiewicz
Małgorzata Kraszkiewicz
MMMatthias Moll
Matthias Moll
KKKonrad Kaminiów
Konrad Kaminiów
SSSzymon Sobel
Szymon Sobel
WMWojciech Majewski
Wojciech Majewski
The aim of this retrospective study was to assess the adverse effects and outcomes of salvage re-irradiation with stereotactic body radiotherapy (sSBRT) for local recurrence of prostate cancer (PCa) after definitive radiotherapy (RT). The study was focused on the adverse effects and prognostic factors for treatment toxicity, followed by an analysis of patterns of failure and survival. Patients treated with sSBRT between 2012 and 2020 at a tertiary institution were included. The exclusion criteria were a primary or salvage radical prostatectomy or a palliative sSBRT dose. Patients with oligorecurrence were eligible if all metastatic lesions were treated locally with curative intent. The Kaplan–Meier method was used to estimate time to grade ≥ 3 toxicity, local control (LC), freedom from distant metastases (FFDM), progression-free survival (PFS), biochemical control (BC) and overall survival (OS). The differences between groups (focal vs. whole-gland sSBRT) were compared using the log-rank test. The Cox proportional hazards model was used to assess prognostic factors for the listed endpoints. A total of 56 patients with a median age of 70.9 years and a median follow-up of 38.6 months were included in the analysis. The majority of them received local sSBRT only (45; 80.4%), while the rest were simultaneously treated for oligometastases (11; 19.6%). Overall, 18 (32.1%) patients experienced any grade ≥ 3 toxicity, including 1 (6.7%) patient who received focal sSBRT, and 17 (41.5%) patients treated with whole-gland sSBRT. The Planning Target Volume (per cc; HR 1.01; 95% CI 1–1.02; p = 0.025) and use of ADT (yes vs. no; HR 0.35; 95%CI 0.13–0.93; p = 0.035) were independent prognostic factors for the risk of grade ≥ 3 toxicity. The estimated rate of grade ≥ 3 adverse events was significantly higher (43.8% vs. 7.1% at 2 years; p = 0.006), and there was no improvement in the LC (92.9% vs. 85.3% at 2 years; p = 0.759) in patients treated with whole-gland sSBRT compared to focal sSBRT. The 2- and 5-year LC were 87.6% and 47.9%, respectively; the 2- and 5-year FFDM were 72.7% and 42.8%, respectively; and the 2- and 5-year PFS were 67.9% and 28.7%, respectively. The primary pattern of failure was distant metastasis. The sSBRT for local recurrence of PCa after definitive RT was associated with a high risk of severe grade ≥ 3 toxicity, which significantly increased with the volume and extent of re-irradiation.
1

1 October 2005 in Radiotherapy and Oncology
Verified
Journal Article
Closed access
RSRafał Suwiński
Rafał Suwiński
MBMagdalena Bankowska-Wozniak
Magdalena Bankowska-Wozniak
WMWojciech Majewski
Wojciech Majewski
ASAnna Sowa
Anna Sowa
AIAdam Idasiak
Adam Idasiak
BMBoguslaw Maciejewski
Boguslaw Maciejewski

8 October 2022 in Biomedicines
Verified
Journal Article
Open access
PDF file
ŁMŁukasz Magrowski
Łukasz Magrowski
OMOliwia Masri
Oliwia Masri
JCJakub Ciepał
Jakub Ciepał
GDGabriela Depowska
Gabriela Depowska
ZNZuzanna Nowicka
Zuzanna Nowicka
MMMarcin Miszczyk
Marcin Miszczyk
The prognostic value of inflammatory indices, such as the absolute monocyte count (AMC), has been a subject of interest in recent prostate cancer (PCa) studies, while hemoglobin concentration (HGB) has been recognized as a survival factor in castration-resistant metastatic prostate cancer, but its value remains unclear in localized diseases. The aim of this study was to test the prognostic value of these two simple and inexpensive biomarkers for survival and was based on a cohort of 1016 patients treated with primary radiotherapy and androgen deprivation therapy for localized or locally advanced intermediate- or high-risk PCa. Complete survival data were available for all cases and were based on the National Cancer Registry, with a median observation time of 120 months (Interquartile Range (IQR) 80.9–144.7). Missing blood test data were supplemented using the Nearest Neighbor Imputation, and the Cox Proportional Hazards Regression model was used for analysis. The median age was 68.8 years (IQR 63.3–73.5). The five-year overall survival was 82.8%, and 508 patients were alive at the time of analysis. The median time between blood tests and the first day of radiotherapy was 6 days (IQR 0–19). HGB (p = 0.009) and AMC (p = 0.003) were independent prognostic factors for survival, along with age, Gleason Grade Group, clinical T stage and maximum prostate-specific antigen concentration. This study demonstrates that HGB and AMC can be useful biomarkers for overall survival in patients treated with radiotherapy for localized intermediate- or high-risk PCa.