Publications by authors named "Tomasz Walasek"

This article emphasizes the significance of understanding the actual thermal properties of thermal insulation materials, which are crucial for avoiding errors in building design and estimating heat losses within the energy balance. The aim of this study was to analyse the thermal parameters of selected thermal insulation materials, particularly in the context of their stability after a period of storage under specific conditions. The materials chosen for this study include commonly used construction insulations such as polystyrene and mineral wool, as well as modern options like rigid foam composites.

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Objectives: Radiotherapy in patients with sinonasal mucosal melanoma (SNMM) was given as alternative treatment to surgery in cases with advanced, inoperable tumors or those not eligible for surgery. We presented the outcomes for patients with SNMM treated with radiotherapy alone.

Material And Methods: The retrospective review of 6 consecutive SNMM (nasal cavity - 4 pts.

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This article presents methods and results of surgical treatment and radiation therapy of brain metastases in breast cancer patients (brain metastases from breast cancer BMF-BC). Based on the literature data, it was shown that patients with single BMF-BC, aged less than 65 years, with Karnofsky score (KPS) of 70 or more and with cured or controlled extracranial disease are the best candidates to surgical treatment. Irrespective of the extracranial disease control status, there are indications for surgery in patients with symptomatic mass effect (tumour diameter larger than 3 cm) and patients with obstructive hydrocephalus from their BMF-BC.

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The prognosis for patients with melanoma who have brain metastases is poor, a median survival does not exceed 4-6 months. There are no uniform standards of treatment for patients with melanoma brain metastases (MBMs). The most preferred treatment approaches include local therapy - surgical resection and/or stereotactic radiosurgery (SRS).

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Mucinous breast carcinoma (MBC) carcinoma represents approximately 1-6% of all malignant breast carcinoma and is divided into pure (PMBC) and mixed (MMBC) subtypes. This study presents the comparison of clinical characteristics and treatment results in 70 patients with PMBC and 40 patients with MMBC, treated at a single institution during 25 years. Performed analyses showed that only nodal status was different in both subtypes.

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Purpose: The aim of the research was to evaluate of intraocular complications after proton beam therapy of choroidal melanomas

Material And Methods: A total 105 patients (48 female and 57 male) from Department of Ophthalmology and Ocular Oncology of University Hospital in Cracow, who received proton beam radiation due to choroidal melanoma were enrolled. The mean age was 52.3 years (51.

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This article presents methods and results of surgery and radiotherapy of brain metastases from non-small cell lung cancer (BMF-NSCLC). Patients with single BMF-NSCLC, with Karnofsky score ≥ 70 and controlled extracranial disease are the best candidates for surgery. Stereotactic radiosurgery (SRS) is recommended in patients with 1-3 BMF-NSCLC below 3-3.

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In the systemic treatment of brain metastases from non-small cell lung cancer (BMF-NSCLC) chemo- and targeted therapy are used. Response rates after platinum-based chemotherapy, range from 23% to 45%. Development of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs): gefitinib or erlotinib, was an improvement in treatment of advanced NSCLC patients.

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Unlabelled: Contrast-enhanced spectral mammography (CESM) is a novel technique used for detection of tumour vascularity by imaging the moment in which contrast, delivered to the lesion by blood vessels, leaks out of them, and flows out through lymphatic vessels. In our study, we included 174 women for whom spectral mammography was performed for diagnostic purposes. The relationship between enhancement in CESM and blood vessel density (BVD), lymphatic vessel density (LVD) or the percentage of fields with at least one lymphatic vessel (distribution of podoplanin-positive vessels - DPV) and other related parameters was assessed in 55 cases.

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Optimal treatment for patients with only local prostate cancer recurrence after external beam radiation therapy (EBRT) failure remains unclear. Possible curative treatments are radical prostatectomy, cryosurgery, and brachytherapy. Several single institution series proved that high-dose-rate brachytherapy (HDRBT) and pulsed-dose-rate brachytherapy (PDRBT) are reasonable options for this group of patients with acceptable levels of genitourinary and gastrointestinal toxicity.

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Purpose: We report a single-institution retrospective analysis of the outcomes, disease control, and toxicity of high-dose-rate (HDR) brachytherapy used as the only treatment modality (monotherapy) for localized prostate cancer.

Methods: Between 2006 and 2012, 77 patients with diagnosed prostate cancer were treated with HDR brachytherapy as a monotherapy. The prescribed dose was 45 Gy in three separate implants 21 days apart, with single fraction per implant.

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Aim Of The Study: Aim of the study is to evaluate the results of postoperative radiotherapy of paragangliomas, prognostic factors and causes of treatment failure.

Material And Methods: Forty-four patients (39 females and 5 males) aged 20 to 74 years were treated for paraganglioma between 1970 and 2010 at the Centre of Oncology in Kraków. Patient survival probability was estimated with the Kaplan-Meier method.

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Objective: The evaluation of efficacy of palliative thoracic radiotherapy (PTR) in patients with advanced non-small cell lung cancer (NSCLC) and to compare it with efficacy of supportive care (SC) alone.

Materials And Methods: Between 2000 and 2012, 235 patients with advanced NSCLC (IIIB and IV) and Karnofsky Performance Status accounted 40-30, were qualified to PTR. In fact, 125 (53.

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Purpose: To present our experience with short-time, split-course palliative thoracic radiotherapy (PTR) in patients with advanced non-small cell lung cancer (NSCLC) with special regard to palliation of symptoms, tolerance and toxicity of PTR treatment.

Patients And Methods: Between 1980 and 2005, a group of 1250 patients with locally advanced or metastatic NSCLC was treated with PTR in our Center. All patients presented with moderate or severe symptoms related to local cancer growth.

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Purpose: The aim of this study is to assess results of treatment, factors influencing prognosis with regard to causes of failure and treatment tolerance in patients with thymoma.

Material And Methods: Between 1966 and 2006, 63 patients with thymoma had been treated at the Centre of Oncology in Krakow. Patients were treated by means of different treatment modalities: surgery followed by radiotherapy (52%), radiotherapy alone (13%), chemoradiotherapy alone (15%), surgery followed by chemoradiotherapy (5%), surgery alone (5%) and others.

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Between 1992 and 1999 at the Oncology Centre in Cracow 138 NSCLC patients after complete resection of the tumour with mediastinal/hilar node involvement were included in the prospective clinical trial. The analysis of the results did not show any improvement of survival in the postoperatively irradiated group. Three-year survival rates with no symptoms of disease in postoperative radiotherapy patients compared to surgery alone group were 30% and 29% respectively.

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In a retrospective analysis of 150 incompletely resected NSCLC patients treated with adjuvant external beam radiotherapy 32 (21.3%) survived 3 years with no symptoms of disease. Ipsilateral mediastinal/hilar lymph node involvement and macroscopic incomplete surgery were the prognostic factors that unfavourably influenced survival in Cox's proportional hazards model.

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