Publications by authors named "Arife Ulas"

: In this study, we evaluated the impact of seven immune indexes on treatment response and survival outcomes in advanced non-small-cell lung cancer (NSCLC) patients receiving second-line and subsequent nivolumab treatment under real-life conditions. : The pan-immune inflammation value (PIV), systemic immune inflammation value (SII), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR), derived neutrophil-to-lymphocyte ratio (d-NLR), and prognostic nutritional index (PNI) were calculated. All immune indexes were classified as low and high based on cut-off values.

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Introduction Cancer patients are among the groups at high risk in the COVID-19 pandemic. Here, we aimed to determine the effectiveness of neoadjuvant chemotherapy (NACT) during the pandemic period and examine the prognostic factors in patients with non-small cell lung cancer (NSCLC). Method Patients with stage I-III NSCLC were treated in our hospitals between 2020-2022.

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Aim: Thiols are the organic compounds of the antioxidant system. There is limited data in the literature concerning chemotherapy (CT) in cancer and thiol balance. In this study, we aimed to evaluate the possible changes of thiol/disulfide levels with the recurrent CT cycles and type of cancer.

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Background: The clinical characteristics of patients who had lymph node-negative early breast cancer were assessed.

Patients And Methods: We assessed a total of 576 patients in the study, including 74 patients (12.8%) with T1a, 119 patients (20.

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  • - This study examined the relationship between cancer symptoms and insomnia in lung cancer patients in Turkey, highlighting the high prevalence of sleep-related issues among these individuals.
  • - Among 1245 lung cancer patients, significant percentages reported insomnia (44.7%), daytime sleepiness (60.8%), and fatigue (82.1%), with certain demographics, such as gender and disease stage, linked to higher insomnia rates.
  • - The findings indicate that effective management of cancer symptoms is crucial for improving sleep quality in lung cancer patients, as those with more severe symptoms experienced greater sleep disturbances.
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Article Synopsis
  • The study evaluated the effectiveness and safety of low-molecular-weight heparins (LMWHs) for cancer patients at low risk of venous thromboembolism (VTE) over a 12-month period across 15 medical sites in Turkey.
  • Among 250 patients, the majority completed follow-ups, with enoxaparin and bemiparin showing different efficacy levels; bemiparin demonstrated a significantly higher rate of thrombus resolution compared to enoxaparin.
  • Only 2 patients stopped treatment due to gastrointestinal bleeding, indicating good overall tolerability of the LMWHs studied.
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Aim: The goal of this study is to evaluate possible factors affecting the survival of patients treated with gonadotropin-releasing hormone (GnRH) analogues.

Methods: Demographic characteristics, treatment modalities, overall survival (OS) and the possible factors affecting the survival a total of 554 premenopausal breast cancer patients in Turkey evaluated retrospectively.

Results: The median duration of GnRH analogues use was 22 ± 13.

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Mucosal melanoma (MM) is a rare type of cancer that differs significantly from cutaneous melanoma. In this study, we aimed to evaluate clinical and demographical characteristics, prognoses and factors influencing survival, treatment alternatives, and features of different subtypes of the patients. The patients were followed up with and treated in different centers due to their diagnoses of MM.

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Purpose: The aim of this study was to determine risk factors for brain metastasis as the first site of disease recurrence in patients with HER2-positive early-stage breast cancer (EBC) who received adjuvant trastuzumab.

Methods: Medical records of 588 female patients who received 52-week adjuvant trastuzumab from 14 centers were evaluated. Cumulative incidence functions for brain metastasis as the first site of disease recurrence and the effect of covariates on brain metastasis were evaluated in a competing risk analysis and competing risks regression, respectively.

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Thrombotic thrombocytopenic purpura (TTP) is a rare form of thrombotic microangiopathy that is characterized by microvascular thrombosis, thrombocytopenia, hemolysis and end organ damage. An extensive variety of drugs, including certain chemotherapeutic agents, have been associated with TTP. However, paclitaxel, cisplatin and ifosfamide regimen (TIP)-induced TTP has not previously been described.

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Skeletal-related events (SREs) for nonsmall cell lung cancer (NSCLC) patients with bone metastasis lead to serious morbidity. The aim of this study was to determine risk factors for SREs in NSCLC patients with bone metastasis and the factors influencing SRE-free survival and overall survival (OS). From 2000 to 2012, we evaluated retrospectively 835 NSCLC patients.

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Background: Soft tissue sarcomas (STSs) are rare malignant tumors of embryogenic mesoderm origin. Primary thoracic STSs account for a small percentage of all STSs and limited published information is available. This study aimed to identify the prognostic factors for thoracic STSs and evaluate the disease's clinical outcomes.

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Purpose: To investigate whether the pretreatment neutrophil lymphocyte ratio (NLR) and the platelet lymphocyte ratio (PLR) have any prognostic significance in patients with HER2-positive early breast cancer receiving adjuvant trastuzumab.

Methods: 187 patients were retrospectively analyzed. The patients were separated into two groups according to the mean value of NLR and PLR (low NLR≤2.

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Patients with advanced non-small cell lung cancer (NSCLC) generally require second-line treatment although their prognosis is poor. In this multicenter study, we aimed to detect the characteristics related to patients and disease that can predict the response to second-line treatments in advanced NSCLC. Data of 904 patients who have progressed after receiving first-line platinum-based chemotherapy in 11 centers with the diagnosis of stage IIIB and IV NSCLC and who were evaluated for second-line treatment were retrospectively analyzed.

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Purpose: The impact of neoadjuvant chemotherapy (NACT) on immunohistochemical markers in breast cancer specimens remains controversial. We designed the current study to investigate the potential changes in estrogen receptor (ER), progesterone receptor (PR), HER2, and Ki-67 expression before and after NACT in a cohort of Turkish patients with breast cancer.

Methods: This research was designed as a prospective, observational study of 100 consecutive patients with breast cancer (mean age 47.

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Background: Medication errors in oncology may cause severe clinical problems due to low therapeutic indices and high toxicity of chemotherapeutic agents. We aimed to investigate unintentional medication errors and underlying factors during chemotherapy preparation and administration based on a systematic survey conducted to reflect oncology nurses experience.

Materials And Methods: This study was conducted in 18 adult chemotherapy units with volunteer participation of 206 nurses.

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Background: The aim of the present study was to evaluate clinicopathological characteristics of our early stage breast cancer patients who are epidermal growth factor receptor 2 (HER2) overexpressed/ amplified (HER2+), the efficacy of trastuzumab treatment and survival results.

Materials And Methods: Patients with HER2- positive early stage breast cancer receiving adjuvant trastuzumab were investigated retrospectively. Clinicopathological features of 210 patients and treatment outcome were analysed.

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Background: The disclosure of a diagnosis of cancer is complex, particularly in older patients. The aim of this study was to investigate the association between age and not knowing the diagnosis, and its impact on mood.

Materials And Methods: The study included 70 patients with various types of solid and hematologic cancer in early stages, which were followed up in an outpatient oncology/hematology clinic in Turkey between January, 2014 and June, 2014.

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Purpose: In this study, we aimed to evaluate the effects of sex-based non-small cell lung cancer (NSCLC) varieties on survival rates.

Materials And Methods: A retrospective study was performed in patients with NSCLC who were diagnosed by histological methods between the years 2000 and 2010. A chi-square test was used to compare variables.

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Background: Utilizing geriatric screening tools for the identification of vulnerable older patients with cancer is important. The aim of this study is to evaluate the hospitalization risk of elderly hematologic cancer patients based on geriatric assessment and laboratory parameters.

Materials And Methods: In this cross sectional study 61 patients with hematologic malignancies, age 65 years and older, were assessed at a hematology outpatient clinic.

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