Ewelina Frejlich

Ewelina Frejlich


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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9 August 2023 in Annals of Surgery
Verified
Journal Article
Closed access
KSKatarzyna Sedlak
Katarzyna Sedlak
KRKarol Rawicz-Pruszyński
Karol Rawicz-Pruszyński
Radosław MlakRadosław Mlak
Radosław Mlak
JSJohanna Van Sandick
Johanna Van Sandick
SGSuzanne S. Gisbertz
Suzanne S. Gisbertz
Wojciech PolkowskiWojciech Polkowski
Wojciech Polkowski
Objective: To assess the rate of textbook outcome (TO) and textbook oncological outcome (TOO) in the European population based on the GASTRODATA registry. Background: TO is a composite parameter assessing surgical quality and strongly correlates with improved overall survival. Following the standard of treatment for locally advanced gastric cancer, TOO was proposed as a quality and optimal multimodal treatment parameter. Methods: TO was achieved when all the following criteria were met: no intraoperative complications, radical resection according to the surgeon, pR0 resection, retrieval of at least 15 lymph nodes, no severe postoperative complications, no reintervention, no admission to the intensive care unit, no prolonged length of stay, no postoperative mortality and no hospital readmission. TOO was defined as TO with the addition of perioperative chemotherapy compliance. Results: Of the 2558 patients, 1700 were included in the analysis. TO was achieved in 1164 (68.5%) patients. The use of neoadjuvant chemotherapy [odds ratio (OR) = 1.33, 95% CI: 1.04–1.70] and D2 or D2+ lymphadenectomy (OR = 1.55, 95% CI: 1.15–2.10) had a positive impact on TO achievement. Older age (OR = 0.73, 95% CI: 0.54–0.94), pT3/4 (OR = 0.79, 95% CI: 0.63–0.99), ASA 3/4 (OR = 0.68, 95% CI: 0.54–0.86) and total gastrectomy (OR = 0.56, 95% CI: 0.45–0.70), had a negative impact on TO achievement. TOO was achieved in 388 (22.8%) patients. Older age (OR = 0.37, 95% CI: 0.27–0.53), pT3 or pT4 (OR = 0.52, 95% CI: 0.39–0.69), and ASA 3 or 4 (OR = 0.58, 95% CI: 0.43–0.79) had a negative impact on TOO achievement. Conclusions: Despite successively improved surgical outcomes, stage‐appropriate chemotherapy in adherence to the current guidelines for multimodal treatment of gastric cancer remains poor. Further implementation of oncologic quality metrics should include greater emphasis on perioperative chemotherapy and adequate lymphadenectomy.

2 August 2021 in Biomolecules
Verified
Journal Article
Open access
PDF file
PPPrzemysław Prządka
Przemysław Prządka
KBKrzysztof Buczak
Krzysztof Buczak
EFEwelina Frejlich
Ewelina Frejlich
LGLudwika Gąsior
Ludwika Gąsior
KSKamil Suliga
Kamil Suliga
ZKZdzisław Kiełbowicz
Zdzisław Kiełbowicz
Regenerative medicine is a dynamically developing field of human and veterinary medicine. The animal model was most commonly used for mesenchymal stem cells (MSCs) treatment in experimental and preclinical studies with a satisfactory therapeutic effect. Year by year, the need for alternative treatments in veterinary medicine is increasing, and other applications for promising MSCs and their biological derivatives are constantly being sought. There is also an increase in demand for other methods of treating disease states, of which the classical treatment methods did not bring the desired results. Cell therapy can be a realistic option for treating human and animal diseases in the near future and therefore additional research is needed to optimize cell origins, numbers, or application methods in order to standardize the treatment process and assess its effects. The aim of the following work was to summarize available knowledge about stem cells in veterinary medicine and their possible application in the treatment of chosen musculoskeletal disorders in dogs and horses.

1 January 2017 in Chinese Journal of Cancer Research
Verified
Journal Article
Open access
Julia Rudno-RudzinskaJulia Rudno-Rudzinska
Julia Rudno-Rudzinska
WKWojciech Kielan
Wojciech Kielan
EFEwelina Frejlich
Ewelina Frejlich
KKKrzysztof Kotulski
Krzysztof Kotulski
WHWojciech Hap
Wojciech Hap
AHAgnieszka Hałoń
Agnieszka Hałoń
Erythroprotein-producing human hepatocellular carcinoma receptors (Eph receptors) compose a subfamily of transmembrane protein-tyrosine kinases receptors that takes part in numerous physiological and pathological processes. Eph family receptor-interacting proteins (Ephrins) are ligands for those receptors. Eph/ephrin system is responsible for the cytoskeleton activity, cell adhesion, intercellular connection, cellular shape as well as cell motility. It affects neuron development and functioning, bone and glucose homeostasis, immune system and correct function of enterocytes. Moreover Eph/ephrin system is one of the crucial ones in angiogenesis and lymphangiogenesis. With such a wide range of impact it is clear that disturbed function of this system leads to pathology. Eph/ephrin system is involved in carcinogenesis and cancer progression. Although the idea of participation of ephrin in carcinogenesis is obvious, the exact way remains unclear because of complex bi-directional signaling and cross-talks with other pathways. Further studies are necessary to find a new target for treatment.

30 August 2013
Verified
Journal Article
Closed access
EFEwelina Frejlich
Ewelina Frejlich
JRJulia Rudno-Rudzińska
Julia Rudno-Rudzińska
KJKacper Janiszewski
Kacper Janiszewski
LSLukasz Salomon
Lukasz Salomon
KKKrzysztof Kotulski
Krzysztof Kotulski
WKWojciech Kielan
Wojciech Kielan

28 February 2017 in Polish Journal of Surgery
Verified
Journal Article
Closed access
WHWojciech Hap
Wojciech Hap
EFEwelina Frejlich
Ewelina Frejlich
JRJulia Rudno-Rudzińska
Julia Rudno-Rudzińska
KKKrzysztof Kotulski
Krzysztof Kotulski
KKKrzysztof Kurnol
Krzysztof Kurnol
WKWojciech Kielan
Wojciech Kielan
Pilonidal cyst is a troublesome condition affecting usually young people. It significantly influences quality of life and causes low self-esteem. Despite its known pathophysiology and numerous therapeutic methods available, pilonidal cysts still constitute a significant problem in general surgery. A large number of surgical techniques indicates the lack of a single method that ensures therapeutic success, and frequent complications cause both patient’s dissatisfaction and frustration of the operator. In many cases, therapy is based on methods developed in a given healthcare center and their efficacy is usually not scientifically verified. Search for optimal strategy is also impeded by lack of an unambiguous clinical classification. In this article, we reviewed publications on various methods of managing pilonidal cyst, and we also presented surgical treatment used in our department. However, we did not manage to point out a surgical method with efficacy high enough to become standard treatment. It indicates the need for further search for new techniques that will give chances for successful treatment of pilonidal cyst.

14 December 2012 in Gastric Cancer
Verified
Journal Article
Open access
PDF file
JRJulia Rudno-Rudzinska
Julia Rudno-Rudzinska
WKWojciech Kielan
Wojciech Kielan
ZGZygmunt Grzebieniak
Zygmunt Grzebieniak
Piotr DziegielPiotr Dziegiel
Piotr Dziegiel
PDPiotr Donizy
Piotr Donizy
AHAgnieszka Halon
Agnieszka Halon
Background One of the most important prognostic indicators in gastric cancer is the presence of metastases in lymph nodes. Even now, little is known about lymphangiogenesis in neoplastic tissue, and little is also known about the transmission of a neoplastic cell from the tumor mass into a lymphatic vessel. Methods This study examined the relationships between the density of lymphatic vessels (LVD) stained immunohistochemically with lymphatic vessel endothelial hyaluronan receptor-1 (LYVE-1) and D2-40 (podoplanin) antibodies, the expression of vascular endothelial growth factor (VEGF)-C/D, selected clinical and pathomorphological factors, and the 5-year overall survival of gastric cancer patients. Results Statistical analysis showed no impact of increased intratumoral or peritumoral LVD on gastric cancer patient survival, irrespective of the protein used to stain lymphatic vessels. Analysis showed that the probability of overall survival was decreased in the cases with enhanced VEGF-D immunoreactivity (P = 0.0045). Conclusion The study showed that the studied markers cannot be used to determine the required extent of the surgical procedure, as they have no statistically significant correlation with the degree of progression of the cancer, the stage of the disease assessed according to the TNM 5th classification of malignant tumors, clinicopathological features, and patient survival. VEGF-D is the only marker that can be regarded as an unfavorable prognostic indicator for patients with advanced gastric cancer.