1281. Hypodontia phenotype in patients with epithelial ovarian cancerAnita Fekonja, Andrej Čretnik, Danijel Žerdoner, Iztok Takač, 2015, izvirni znanstveni članek Povzetek: 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. Objavljeno v DiRROS: 23.04.2024; Ogledov: 291; Prenosov: 157
Celotno besedilo (788,01 KB) Gradivo ima več datotek! Več... |
1282. Giant solitary fibrous tumour of the pleura : case report and review of the literatureAnton Crnjac, Bojan Veingerl, Damjan Vidovič, Rajko Kavalar, Aljaž Hojski, 2015, pregledni znanstveni članek Povzetek: Background. Solitary fibrous tumours of the pleura (SFTP) are rare tumours. They are mostly benign. Only around 12% of them are malignant. In the initial stage they are mostly asymptomatic and by growing they cause chest pain, irritating cough and dyspnoea on account of the pressure created on the surrounding structures. Rare giant tumours have compression symptoms on the mediastinal structures. The condition requires tiered diagnostic radiology. Preoperative biopsy is not successful in most cases. The therapy of choice is radical surgical tumour removal. Malignant or nonradically removed benign solitary fibrous tumours of the pleura additionally require neoadjuvant therapy. Case report. A 68-year old patient was hospitalized for giant solitary fibrous tumour of the pleura in the right pleural cavity. With its expansive growth the tumour caused the shift of the mediastinum by compressing the lower vena cava, right cardiac auricle as well as the intermediate and lower lobe bronchus. Due to cardiac inflow obstruction and right lung collapse, the patient's life was endangered with signs of cardio-respiratory failure. After preoperative diagnostic radiology, the tumour was surgically removed. Postoperatively, the patient's condition improved. No disease recurrence was diagnosed after a year. Conclusions. Giant solitary fibrous tumour of the pleura may cause serious and life-threatening conditions by causing compression of the pleural cavity with its expansive growth. Early diagnosis of the condition enables less aggressive as well as video-assisted thoracic surgery in patients with significantly better state of health. Large tumour surgeries in cardio-respiratory affected patients are highly risk-associated procedures. Objavljeno v DiRROS: 23.04.2024; Ogledov: 438; Prenosov: 308
Celotno besedilo (2,16 MB) Gradivo ima več datotek! Več... |
1283. Gamma-enolase : a well known tumour marker, with a less-known role in cancerTjaša Vižin, Janko Kos, 2015, pregledni znanstveni članek Povzetek: Gamma-enolase, known also as neuron-specific enolase (NSE), is an enzyme of the glycolytic pathway, which is expressed predominantly in neurons and cells of the neuroendocrine system. As a tumour marker it is used in diagnosis and prognosis of cancer; however, the mechanisms enrolling it in malignant progression remain elusive. As a cytoplasmic enzyme gamma-enolase is involved in increased aerobic glycolysis, the main source of energy in cancer cells, supporting cell proliferation. However, different cellular localisation at pathophysiological conditions, proposes other cellular engagements. The C-terminal part of the molecule, which is not related to glycolytic pathway, was shown to promote survival of neuronal cells by regulating neuronal growth factor receptor dependent signalling pathways, resulting also in extensive actin cytoskeleton remodelling. This additional function could be important also in cancer cells either to protect cells from stressful conditions and therapeutic agents or to promote tumour cell migration and invasion. Gamma-enolase might therefore have a multifunctional role in cancer progression: it supports increased tumour cell metabolic demands, protects tumour cells from stressful conditions and promotes their invasion and migration. Ključne besede: gamma-enolase, cancer, glycolysis, cell survival, tumour marker Objavljeno v DiRROS: 23.04.2024; Ogledov: 327; Prenosov: 188
Celotno besedilo (864,48 KB) Gradivo ima več datotek! Več... |
1284. Febrile neutropenia in chemotherapy treated small-cell lung cancer patientsRenata Režonja, Iztok Grabnar, Tomaž Vovk, Aleš Mrhar, Viljem Kovač, Tanja Čufer, 2015, izvirni znanstveni članek Povzetek: Chemotherapy with platinum agent and etoposide for small-cell lung cancer (SCLC) is supposed to be associated with intermediate risk (10-20%) of febrileneutropenia. Primary prophylaxis with granulocyte colonystimulating factors (G-CSFs) is not routinely recommended by the treatment guidelines. However, in clinical practice febrile neutropenia is often observed with standard etoposide/platinum regimen. The aim of this analysis was to evaluate the frequency of neutropenia and febrile neutropenia in advanced SCLC patients in the first cycle of standard chemotherapy. Furthermore, we explored the association between severe neutropenia and etoposide peak plasma levels inthe same patients. The case series based analysis of 17 patients with advanced SCLC treated with standard platinum/etoposide chemotherapy, already included in the pharmacokinetics study with etoposide, was performed. Grade 3/4 neutropenia and febrile neutropenia, observed after the first cycle are reported. The neutrophil counts were determined on day one of the second cycle unless symptoms potentially related to neutropenia occurred. Adverse events were classified according to Common Toxicity Criteria 4.0. Additionally, association between severe neutropenia and etoposide peak plasma concentrations, which were measured in the scope of pharmacokinetic study, was explored. Two out of 17 patients received primary GCS-F prophylaxis. In 15 patient who did not receive primary prophylaxis the rates of both grade 3/4 neutropenia and febrile neutropenia were high (8/15 (53.3%) and 2/15 (13.3%), respectively), already in the first cycle of chemotherapy. One patient died due to febrile neutropenia related pneumonia. Neutropenic events are assumed to be related to increased etoposide plasma concentrations after a standard etoposide and cisplatin dose. While the mean etoposide peak plasma concentration in the first cycle of chemotherapy was 17.6 mg/l, the highest levels of 27.07 and 27.49 mg/l were determined in two patients with febrile neutropenia. Our study indicates that there is a need to reduce the risk of neutropenic events in chemotherapy treated advanced SCLC, starting in the first cycle. Mandatory use of primary G-CSF prophylaxis might be considered. Alternatively, use of improved risk models for identification of patients with increased risk for neutropenia and individualization of primary prophylaxis based on not only clinical characteristics but also on etoposide plasma concentration measurement, could be a new, promising options that deserves further evaluation. Ključne besede: small cell lung cancer, platinum-etoposide chemotherapy, etoposide, febrile neutropenia, plasma drug concentration Objavljeno v DiRROS: 22.04.2024; Ogledov: 286; Prenosov: 141
Celotno besedilo (568,43 KB) Gradivo ima več datotek! Več... |
1285. Fibulin-3 as a biomarker of response to treatment in malignant mesotheliomaViljem Kovač, Metoda Dodič-Fikfak, Niko Arnerić, Vita Dolžan, Alenka Franko, 2015, izvirni znanstveni članek Ključne besede: fibulin-3, biomarker, malignant mesothelioma, response to treatment Objavljeno v DiRROS: 22.04.2024; Ogledov: 279; Prenosov: 115
Celotno besedilo (494,98 KB) |
1286. Optimal scan time for evaluation of parathyroid adenoma with [18F]-fluorocholine PET/CTSebastijan Rep, Luka Ležaič, Tomaž Kocjan, Marija Pfeifer, Mojca Jensterle Sever, Urban Simončič, Petra Tomše, Marko Hočevar, 2015, izvirni znanstveni članek Ključne besede: lesions representing enlarged parathyroid tissue, triple-phase, standardized uptake value, retention index, lesion contrast, rak (medicina), obščitnični adenomi, diagnostika Objavljeno v DiRROS: 22.04.2024; Ogledov: 477; Prenosov: 385
Celotno besedilo (850,44 KB) Gradivo ima več datotek! Več... |
1287. |
1288. Impact of comorbidity on the outcome in men with advanced prostate cancer treated with docetaxelAndrej Žist, Eitan Amir, Alberto Ocaña, Boštjan Šeruga, 2015, izvirni znanstveni članek Povzetek: Men with metastatic castrate-resistant prostate cancer (mCRPC) may not receive docetaxel in everyday clinical practice due to comorbidities. Here we explore the impact of comorbidity on outcome in men with mCRPC treated with docetaxel in a population-based outcome study. Methods. Men with mCRPC treated with docetaxel at the Institute of Oncology Ljubljana between 2005 and 2012 were eligible. Comorbidity was assessed by the age-adjusted Charlson comorbidity index (aa-CCI) and adult comorbidity evaluation (ACE-27) index. Hospital admissions due to the toxicity and deaths during treatment with docetaxel were used as a measure of tolerability. Association between comorbidity and overall survival (OS) was tested using the Cox proportional hazards analysis. Results. Two hundred and eight men were treated with docetaxel. No, mild, moderate and severe comorbidity was present in 2%, 32%, 53% and 13% using aa-CCI and in 27%, 35%, 29% and 8% when assessed by ACE-27. A substantial dose reduction of docetaxel occurred more often in men with moderate or severe comorbidity as compared to those with no or mild comorbidity. At all comorbidity levels about one-third of men required hospitalization or died during treatment with docetaxel. In univariate analysis a higher level of comorbidity was not associated with worse OS (aa-CCI HR 0.99; [95% CI 0.87%1.13], p = 0.93; ACE-27: HR 0.96; [95% CI 0.79%1.17], p = 0.69). Ključne besede: metastatic castration-resistant prostate cancer, prostate cancer, comorbidity, chemotherapy Objavljeno v DiRROS: 22.04.2024; Ogledov: 326; Prenosov: 63
Celotno besedilo (428,78 KB) |
1289. Prognostic value of some tumor markers in unresectable stage IV oropharyngeal carcinoma patients treated with concomitant radiochemotherapyErika Šoba, Marjan Budihna, Alojz Šmid, Nina Gale, Hotimir Lešničar, Branko Zakotnik, Primož Strojan, 2015, izvirni znanstveni članek Povzetek: The aim of the study was to investigate how the expression of tumor markers p21, p27, p53, cyclin D1, EGFR, Ki-67, and CD31 influenced the outcome of advanced inoperable oropharyngeal carcinoma patients, treated with concomitant radiochemotherapy. Patients and methods. The pretreatment biopsy specimens of 74 consecutive patients with inoperable stage IV oropharyngeal squamous cell carcinoma treated with concomitant radiochemotherapy were in retrospective study processed by immunochemistry for p21, p27, p53, cyclin D1, EGFR, Ki-67, and CD31. Disease-free survival (DFS) was assessed according to the expression of tumor markers. Results. Patients with a high expression of p21 (%10%), p27 (>50%), Ki-67 (>50%), CD31 (>130 vessels/mm2) and low expression of p53 (<10%), cyclin D1 (<10%) and EGFR (<10%) (favorable levels - FL) had better DFS than patients with a low expression of p21 (<10%), p27 (%50%), Ki-67 (%50%), CD31 (<130 vessels/mm2) and high expression of p53 (%10%), cyclin D1 (%10%) and EGFR (%10%) (unfavorable levels - UL). However, statistical significance in survival between FL and UL was achieved only for p27 and cyclin D1. DFS significantly decreased with an increasing number of markers with an unfavorable level per tumor (1%4 vs. 5%7) (78% vs. 32%, respectively; p = 0.004). The number of markers per tumor with UL of expression retained prognostic significance also in multivariate analysis. Conclusions. Statistical significance in survival between FL and UL emerged only for p27 and cyclin D1. The number of markers per tumor with UL of expression was an independent prognostic factor for an adverse outcome . Ključne besede: oropharynx, radiochemotherapy, tumor markers Objavljeno v DiRROS: 22.04.2024; Ogledov: 315; Prenosov: 106
Celotno besedilo (560,05 KB) |
1290. Thyroid lesions incidentally detected by [sup] 18F-FDG PET-CT : a two centre retrospective studyJan Jamšek, Ivana Žagar, Simona Gaberšček, Marko Grmek, 2015, izvirni znanstveni članek Povzetek: Incidental 18F-FDG uptake in the thyroid on PET-CT examinations represents a diagnostic challenge. The maximal standardized uptake value (SUVmax) is one possible parameter that can help in distinguishing between benign and malignant thyroid PET lesions. We retrospectively evaluated 18F-FDG PET-CT examinations of 5,911 patients performed at two different medical centres from 2010 to 2011. If pathologically increased activity was accidentally detected in the thyroid, the SUVmax of the thyroid lesion was calculated. Patients with incidental 18F-FDG uptake in the thyroid were instructed to visit a thyroidologist, who performed further investigation including fine needle aspiration cytology (FNAC) if needed. Lesions deemed suspicious after FNAC were referred for surgery. Incidental 18F-FDG uptake in the thyroid was found in 3.89% - in 230 out of 5,911 patients investigated on PET-CT. Malignant thyroid lesions (represented with focal thyroid uptake) were detected in 10 of 66 patients (in 15.2%). In the first medical centre the SUVmax of 36 benign lesions was 5.6 +- 2.8 compared to 15.8 +- 9.2 of 5 malignant lesions (p < 0.001). In the second centre the SUVmax of 20 benign lesions was 3.7 +- 2.2 compared to 5.1 +- 2.3 of 5 malignant lesions (p = 0.217). All 29 further investigated diffuse thyroid lesions were benign. Incidental 18F-FDG uptake in the thyroid was found in 3.89% of patients who had a PET-CT examination. Only focal thyroid uptake represented a malignant lesion in our study - in 15.2% of all focal thyroid lesions. SUVmax should only serve as one of several parameters that alert the clinician on the possibility of thyroid malignancy. Ključne besede: thyroid cancer, PET incidentaloma, PET-CT Objavljeno v DiRROS: 22.04.2024; Ogledov: 280; Prenosov: 103
Celotno besedilo (654,61 KB) |