1. Incidence of positive peritoneal cytology in patients with endometrial carcinoma after hysteroscopy vs. dilatation and curettageAndraž Dovnik, Bojana Crnobrnja, Branka Žegura Andrić, Iztok Takač, Maja Pakiž, 2017, original scientific article Abstract: Background. The aim of the study was to compare the frequency of positive peritoneal washings in endometrial cancer patients after either hysteroscopy (HSC) or dilatation and curettage (D&C). Patients and methods. We performed a retrospective analysis of 227 patients who underwent either HSC (N = 144) or D&C (N = 83) and were diagnosed with endometrial carcinoma at the University Medical Centre Maribor between January 2008 and December 2014. The incidence of positive peritoneal cytology was evaluated in each group. Results. There was no overall difference in the incidence of positive peritoneal washings after HSC or D&C (HSC = 13.2%; D&C = 12.0%; p = 0.803). However, a detailed analysis of stage I disease revealed significantly higher rates of positive peritoneal washings in the HSC group (HSC = 12.8%; D&C = 3.4%; p = 0.046). Among these patients, there was no difference between both groups considering histologic type (chi-square = 0.059; p = 0.807), tumour differentiation (chi-square = 3.709; p = 0.156), the time between diagnosis and operation (t = 0.930; p = 0.357), and myometrial invasion (chi-square = 5.073; p = 0.079). Conclusions. Although the diagnostic procedure did not influence the overall incidence of positive peritoneal washings, HSC was associated with a significantly higher rate of positive peritoneal cytology in stage I endometrial carcinoma compared to D&C.
Published in DiRROS: 03.06.2024; Views: 5; Downloads: 2
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2. Prognostic significance of uPA/PAI-1 level, HER2 status, and traditional histologic factors for survival in node-negative breast cancer patientsNina Fokter Dovnik, Iztok Takač, 2017, original scientific article Abstract: Background. The association of HER2 status with urokinase plasminogen activator (uPA) and plasminogen activator inhibitor 1 (PAI-1) levels raises the question whether uPA/PAI-1 level carries additional clinically relevant prognostic information independently from HER2 status. The aim of our study was to compare the prognostic value of uPA/PAI-1 level, HER2 status, and traditional prognostic factors for survival in node-negative breast cancer patients. Patients and methods. A retrospective analysis of 858 node-negative breast cancer patients treated in Maribor University Clinical Center, Slovenia, in the years 2000-2009 was performed. Data were obtained from patient medical records. The median follow-up time was 100 months. Univariate and multivariate analyses of disease-free (DFS) and overall survival (OS) were performed using the Cox regression and the Cox proportional hazards model. Results. In univariate analysis, age, tumor size, grade, lymphovascular invasion, HER2 status and UPA/PAI-1 level were associated with DFS, and age, tumor size, grade, and uPA/PAI-1 level were associated with OS. In the multivariate model, the most important determinants of DFS were age, estrogen receptor status and uPA/PAI-1 level, and the most important factors for OS were patient age and tumor grade. The HR for death from any cause in the multivariate model was 1.98 (95% CI 0.83-4.76) for patients with high uPA and/or PAI-1 compared to patients with both values low. Conclusions. uPA/PAI-1 level clearly carries an independent prognostic value regardless of HER2 status in node-negative breast cancer and could be used in addition to HER2 and other markers to guide clinical decisions in this setting.
Published in DiRROS: 03.06.2024; Views: 8; Downloads: 3
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3. Hypodontia phenotype in patients with epithelial ovarian cancerAnita Fekonja, Andrej Čretnik, Danijel Žerdoner, Iztok Takač, 2015, original scientific article Abstract: Background. Ovarian cancer is usually diagnosed in an advanced stage and the present clinical and diagnostic molecular markers for early OC screening are insufficient. The aim of this study was to identify potential relationship between the hypodontia and epithelial ovarian cancer (EOC). Patients and methods. A retrospective study was conducted on 120 patients with EOC treated at the Department of Gynaecologic and Breast Oncology at the University Clinical Centre and 120 gynaecological healthy women (control group) of the same mean age. Women in both groups were reviewed for the presence of hypodontia and the patients with EOC also for clinicopathological characteristics of EOC according to hypodontia phenotype. Results. Hypodontia was diagnosed in 23 (19.2%) of patients with EOC and 8 (6.7%) controls (p = 0.004; odds ratio [OR] = 3.32; confidence interval [CI], 1.42-7.76). There was no statistically significant difference in patients with EOC with or without hypodontia regarding histological subtype (p = 0.220); they differed in regard to FIGO stage (p = 0.014; OR =3.26; CI, 1.23%8.64) and tumour differentiation grade (p = 0.042; OR = 3.1; CI, 1.01-9.53). Also, bilateral occurrence of EOC was more common than unilateral occurrence in women with hypodontia (p = 0.021; OR = 2.9; CI, 1.15-7.36). We also found statistically significant difference between the ovarian cancer group and control group in presence of other malignant tumours in subjects (p < 0.001). Conclusions. The results of the study suggest a statistical association between EOC and hypodontia phenotype. Hypodontia might serve as a risk factor for EOC detection.
Published in DiRROS: 23.04.2024; Views: 116; Downloads: 52
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4. Urokinase plasminogen activator (uPA) and plasminogen activator inhibitor type-1 (PAI-1) in breast cancer : correlation with traditional prognostic factorsMaja Lampelj, Darja Arko, Nina Čas-Sikošek, Rajko Kavalar, Maja Ravnik, Barbara Jezeršek Novaković, Sarah Dobnik, Nina Fokter Dovnik, Iztok Takač, 2015, original scientific article Abstract: Background. Urokinase plasminogen activator (uPA) and plasminogen activator inhibitor type-1 (PAI-1) play a key role in tumour invasion and metastasis. High levels of both proteolytic enzymes are associated with poor prognosis in breast cancer patients. The purpose of this study was to evaluate the correlation between traditional prognostic factors and uPA and PAI-1 expression in primary tumour of breast cancer patients. Patients and methods. 606 primary breast cancer patients were enrolled in the prospective study in the Department of gynaecological oncology and breast oncology at the University Medical Centre Maribor between the years 2004 and 2010. We evaluated the traditional prognostic factors (age, menopausal status, tumour size, pathohistological type, histologic grade, lymph node status, lymphovascular invasion and hormone receptor status), together with uPA and PAI-1. We used Spearman%s rank correlation, Mann Whitney U test and X2 test for statistical analysis. Results. Our findings indicate a positive correlation between uPA and tumour size (p < 0.001), grade (p < 0.001), histological type (p < 0.001), lymphovascular invasion (p = 0.01) and a negative correlation between uPA and hormone receptor status (p < 0.001). They also indicate a positive correlation between PAI-1 and tumour size (p = 0.004), grade (p < 0.001), pathohistological type (p < 0.001) and negative correlation between PAI-1 and hormone receptor status (p = 0.002). Conclusions. Our study showed a relationship between uPA and PAI-1 and traditional prognostic factors. Their role as prognostic and predictive factors remains to be further evaluated.
Keywords: urokinase plasminogen activator, plasminogen activator inhibitor, breast cancer
Published in DiRROS: 17.04.2024; Views: 161; Downloads: 71
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5. Pomen humanih virusov papiloma pri odkrivanju in preprečevanju raka materničnega vratu - kje smo danesMarjetka Uršič-Vrščaj, Sonja Bebar, Andrej Možina, Stelio Rakar, Iztok Takač, Vida Stržinar, Aleš Vakselj, 2006, published professional conference contribution Abstract: Izhodišča. S pomočjo organiziranih programov presejanja se je zmanjšala umrljivost zaradi raka materničnega vratu. Humani virusi papiloma (HPV) povzročajo predrakave spremembe in raka materničnega vratu. Številne ugotovitve kažejo, da je z vključevanjem testa HPV mogoče izboljšati uspešnost presejalnih programov. Test HPV se omenja pri presejanju, pri triažiranju bolnic z začetno patološkimi brisi materničnega vratu in po zdravljenju predrakavih sprememb. Visoka negativna napovedna vrednost dvakrat negativnega testa, testa PAP in testa HPV, naj bi na področju presejanja omogočala določene spremembe, kot so podaljševanje priporočenega rednega intervala presejanja, prilagajanje starosti ter ponovno presejanje po zdravljenju predrakavih sprememb. Test HPV je klinično pomemben pri triažiranju žensk s ponavljajočimi se atipičnimi ploščatimi celicami, pri katerih je potrebna kolposkopija. Zaradi visoke prevalence okuženosti s HPV se test HPV kaže kot omejitev pri zelo mladih ženskah z blago diskariotičnimi celicami. Zaključki. Ugotovitve o HPV nakazujejo možnosti za preprečevanje raka materničnega vratu na področju profilaktičnega cepljenja. V svetovnem merilu HPV 16 in 18 povzročata 70 % raka materničnega vratu. V prihodnjem letu naj bi bili dostopni dve profilaktični cepivi, učinkoviti proti HPV 16 in 18.
Published in DiRROS: 05.12.2023; Views: 304; Downloads: 65
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6. Programske smernice Državnega programa ZORAUrška Ivanuš, Edita Arh, Sonja Bebar, Branko Cvjetičanin, Dušan Deisinger, Mojca Florjančič, Aljoša Frelih, Urška Gašper, Biljana Grčar-Kuzmanov, Nina Jančar, Tine Jerman, Kaja Kališnik, Silvestra Kašnik-Čas, Veronika Kloboves-Prevodnik, Borut Kobal, Amela Duratović Konjević, Jerneja Kos, Gabrijela Kupljen, Mateja Lasič Pecev, Mateja Marčec, Leon Meglič, Sebastjan Merlo, Marko Mlinarič, Nataša Nolde, Irena Oblak, Maja Pakiž, Boštjan Pirš, Ana Pogačnik, Maja Primic-Žakelj, Alenka Repše-Fokter, Luka Roškar, Uršula Salobir Gajšek, Špela Sitar, Špela Smrkolj, Vivijana Snoj, Margareta Strojan Fležar, Tadeja Štrumbelj, Iztok Takač, Renata Toff-Jovan, Tomaž Tušek, Andreja Uštar, 2022, professional monograph Keywords: predrakave spremembe, zgodnja diagnostika, presejanje, presejalni programi, nacionalni programi, postopki, elektronske knjige
Published in DiRROS: 10.03.2022; Views: 832; Downloads: 416
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7. Priporočila za obravnavo bolnic z rakom zunanjega spolovilaSebastjan Merlo, Nina Kovačević, Barbara Šegedin, Tina Arnež, Sonja Bebar, Barbara Gazić, Andreja Gornjec, Borut Kobal, Manja Šešek, Maja Pakiž, Erik Škof, Iztok Takač, Vesna Zadnik, Helena Barbara Zobec Logar, 2020, professional article Keywords: zunanje spolovilo, rak (medicina), diagnostika, zdravljenje
Published in DiRROS: 07.04.2021; Views: 1344; Downloads: 501
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8. Priporočila za obravnavo bolnic z rakom zunanjega spolovilaSebastjan Merlo, Nina Kovačević, Barbara Šegedin, Tina Arnež, Sonja Bebar, Barbara Gazić, Andreja Gornjec, Borut Kobal, Manja Šešek, Maja Pakiž, Erik Škof, Iztok Takač, Vesna Zadnik, Helena Barbara Zobec Logar, 2020, professional article Keywords: zunanje spolovilo, rak (medicina), diagnostika, zdravljenje
Published in DiRROS: 18.03.2021; Views: 1276; Downloads: 409
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9. Smernice za celostno obravnavo žensk s predrakavimi spremembami materničnega vratuMarjetka Uršič-Vrščaj, Stelio Rakar, Andrej Možina, Borut Kobal, Iztok Takač, Dušan Deisinger, Andrej Zore, 2017, not set Keywords: ginekologija, onkologija, diagnostika, izvidi, postopki
Published in DiRROS: 23.06.2020; Views: 1903; Downloads: 513
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10. Postopki za obravnavo bolnic z rakom materničnega vratuBarbara Šegedin, Sonja Bebar, Olga Cerar, Branko Cvjetičanin, Barbara Gazić, Brigita Gregorič, Urška Ivanuš, Borut Kobal, Manja Šešek, Leon Meglič, Maja Pakiž, Nina Kovačević, Špela Smrkolj, Erik Škof, Iztok Takač, Helena Barbara Zobec Logar, 2019, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: ONKOLOGIJA-STOJIŠČE, onkologija, ginekologija
Published in DiRROS: 10.06.2020; Views: 1831; Downloads: 567
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