Vahit Can Cavdar

Dr. Vahit Can Cavdar

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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14 August 2024 in BMC Geriatrics
Verified
Journal Article
Open access
PDF file
VCVahit Can Cavdar
Vahit Can Cavdar
BBBasak Ballica
Basak Ballica
MAMERT ARİÇ
MERT ARİÇ
ZKZekiye Busra Karaca
Zekiye Busra Karaca
EAEsma Guldal Altunoglu
Esma Guldal Altunoglu
FAFeray Akbas
Feray Akbas
The increasing prevalence of depression among older adults is a growing concern. Chronic health conditions, cognitive impairments, and hospitalizations amplify emotional distress and depression levels in this population. Assessing the quality of life is crucial for the well-being of older adults. Our study aimed to examine how comorbidities affect depression and quality of life in geriatric patients in both outpatient and hospital settings. 100 patients (50 from internal medicine outpatient clinic and 50 from internal medicine ward) were included in the study according to inclusion and exclusion criteria. Patients were classified into different age groups (65–74 years, 75–84 years and ≥ 85 years). Data on patients’ location of application, age, sex, living alone or with family status, number of comorbid diseases, types of accompanying diseases were recorded and WHOQOL-OLD and Geriatric Depression Scale (GDS) questionnaires were administered. Results were evaluated using SPSS. The WHOQOL-OLD questionnaire score was higher in the 65–74 age group compared to other groups, but there was no significant difference between outpatient group and hospitalized group. Patients with comorbid diseases had lower WHOQOL-OLD questionnaire scores compared to those without comorbid diseases. In the 75–84 and ≥ 85 age groups, the GDS scores were higher compared to the 65–74 age group. In hospitalized group, GDS scores were higher than outpatient clinic group. In patients with comorbid diseases, GDS scores were higher than the ones without comorbid diseases. Our findings indicate that quality of life is higher among those aged 65–74, with lower incidence of depression compared to other age groups. Hospitalization correlates with higher depression rates but not quality of life. As number of comorbid diseases increases in older adults, the frequency of depression rises and the quality of life declines. Early detection and intervention for depression are crucial for enhancing older adults’ well-being.

9 July 2025 in Diagnostics
Verified
Journal Article
Open access
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VCVahit Can Cavdar
Vahit Can Cavdar
YGYALCİN GOKMEN
YALCİN GOKMEN
MAMERT ARİÇ
MERT ARİÇ
TATugba Altunkaya
Tugba Altunkaya
CECennet Gizem Erdem
Cennet Gizem Erdem
CACigdem Afsar
Cigdem Afsar
Background/Objectives: Pancreatic cancer (PC) is an aggressive malignancy with a poor prognosis, frequently diagnosed at a metastatic stage. The identification of accessible, cost-effective prognostic biomarkers is critical for optimizing treatment strategies. The Endothelial Activation and Stress Index (EASIX), calculated using lactate dehydrogenase (LDH), creatinine, and platelet count, reflects endothelial dysfunction and has shown prognostic value in hematological cancers. However, its utility in metastatic PC remains unexplored. This study is the first to evaluate the prognostic significance of the EASIX in patients with metastatic PC receiving first-line FOLFIRINOX chemotherapy. Methods: This retrospective cohort study analyzed 204 patients diagnosed with metastatic pancreatic adenocarcinoma at Istanbul Training and Research Hospital between 2020 and 2025. All patients received FOLFIRINOX as first-line therapy. EASIX was calculated as LDH (U/L) × creatinine (mg/dL)/platelet count (109/L). A cut-off value of 1.33 was used to stratify patients into low and high EASIX groups. Overall survival (OS) was assessed using Kaplan–Meier analysis and compared with the log-rank test. Results: The mean patient age was 63.0 ± 9.4 years; 61.8% were male. There were no significant differences in baseline characteristics between groups. Patients with EASIX ≥ 1.33 had significantly lower platelet counts and higher LDH and creatinine levels. Median OS was 14 months for EASIX < 1.33 and 8 months for EASIX ≥ 1.33 (p < 0.001). Conclusions: EASIX is a simple, inexpensive prognostic marker associated with overall survival in metastatic PC. Its integration into clinical practice may facilitate early risk stratification. Further prospective studies are needed to confirm its prognostic utility.

11 July 2025 in Medicine
Verified
Journal Article
Open access
VCVahit Can Cavdar
Vahit Can Cavdar
MAMERT ARİÇ
MERT ARİÇ
IRIbrahim Taskin RAKICI
Ibrahim Taskin RAKICI
IGIlkay GULTURK
Ilkay GULTURK
ZKZekiye Busra Karaca
Zekiye Busra Karaca
BBBasak Ballica
Basak Ballica
Breast cancer is the most commonly diagnosed malignancy worldwide. In hormone receptor-positive, human epidermal growth factor receptor 2-negative metastatic breast cancer (mBC), cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) are the standard treatment. Sarcopenia, characterized by progressive muscle loss, is increasingly recognized as a factor influencing cancer outcomes. This study evaluated the impact of preexisting sarcopenia on overall survival, progression-free survival, and treatment-related adverse effects in patients receiving CDK4/6i therapy. A retrospective analysis was conducted on hormone receptor-positive mBC patients treated with CDK4/6i at Istanbul Training and Research Hospital between 2020 and 2024. Patients were classified as sarcopenic or non-sarcopenic based on pretreatment computed tomography muscle mass measurements. Survival outcomes were assessed using Kaplan–Meier analysis, and treatment-related adverse effects, including dose reductions, acute kidney injury, liver function test abnormalities, and neutropenia, were compared between groups. Among 111 patients, 20 (18%) were identified as sarcopenic. Sarcopenia was associated with significantly lower overall survival and progression-free survival compared to non-sarcopenic patients (P = .000). However, no significant differences were observed between groups in treatment-related adverse effects, including the need for dose reduction, acute kidney injury, liver function abnormalities, and neutropenia (P > .05). Sarcopenia negatively impacts survival outcomes in hormone receptor-positive mBC patients receiving CDK4/6i therapy. Routine screening and targeted interventions, such as nutritional support and physical activity programs, may help improve patient resilience and treatment efficacy. Further research is needed to develop strategies to mitigate sarcopenia’s impact on survival in this patient population.

10 December 2024 in Metabolic Syndrome and Related Disorders
Verified
Journal Article
Closed access
FAFeray Akbas
Feray Akbas
ZTZeynep Banu Teke
Zeynep Banu Teke
VCVahit Can Cavdar
Vahit Can Cavdar
HZHasan Zerdali
Hasan Zerdali
Introduction: Hashimoto's thyroiditis is a common endocrinological disorder that often coexists with obesity. Thyroid hormones interact with the regulation of sex steroids, and thyroid autoimmunity has a negative impact on female fertility. There are studies showing when euthyroid state is achieved with hormone replacement therapy (HRT), the reproductive hormone profile is improved but they usually compare the reproductive hormones before and after HRT in the same individuals. Studies comparing patients with Hashimoto's thyroiditis in an euthyroid state receiving HRT with individuals having normal thyroid function are limited. Here, it was aimed to search the impact of euthyroid Hashimoto's thyroiditis on reproductive hormone profile in women living with obesity. Materials and Methods: Sixty-one randomly selected female patients with Hashimoto's thyroiditis were included as the case group and 60 patients without Hashimoto's thyroiditis were included as the control group, from our obesity center. The case group included patients who had menstrual cycles and were euthyroid under l-thyroxine treatment for at least 6 months. Data on weight, height, body mass index (BMI), waist circumference (WC), free thyroxine (fT4), thyroid stimulating hormone (TSH), thyroid peroxidase antibody (anti-TPO), cortisol, insulin, prolactin (PRL), follicular stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), progesterone (prog), testosterone (T), and dehydroepiandrosterone sulfate (DHEAS) levels, l-thyroxine treatment dosage (for case group), and accompanying diseases were recorded. The results were evaluated using SPSS. Results: A total of 121 patients were included in the study. Mean age was 41.8 ± 8.5 years in case and 38.6 ± 8.9 years in control group. There was no significant difference in weight, height, BMI, WC, or accompanying diseases between Hashimoto's thyroiditis and control group. fT4, anti-TPO, cortisol levels were higher in Hashimoto's thyroiditis group when compared with control group, but there was no significant difference for TSH, insulin, FSH, LH, E2, prog, T, DHEAS, or PRL. Conclusion: In women living with obesity, it is important to screen for Hashimoto's thyroiditis and achieve euthyroidism through effective LT4 treatment to promote a healthy reproductive system and improve fertility rates.

29 August 2025 in Bagcilar Medical Bulletin
Verified
Journal Article
Open access
PDF file
VCVahit Can Cavdar
Vahit Can Cavdar
AÖAhmet Öz
Ahmet Öz
EAEvliya Akdeniz
Evliya Akdeniz
FAFeray Akbaş
Feray Akbaş
MAMert Arıç
Mert Arıç
BBBaşak Ballıca
Başak Ballıca
The Impact of Systemic Inflammation and Electrolyte Imbalance on Electrocardiogram Parameters in Acute Pancreatitis: A Clinical Research Article - Bagcilar Medical Bulletin

22 April 2025 in Hormones
Verified
Journal Article
Open access
PDF file
VCVahit Can Cavdar
Vahit Can Cavdar
YIYagmur Izgi
Yagmur Izgi
FAFeray Akbas
Feray Akbas
Introduction: Obesity has been linked to an elevated susceptibility to development of erectile dysfunction, yet the interplay between sex hormone levels, sexual function, and obesity remains unclear. This study aimed to investigate sexual dysfunction among male patients with obesity and to emphasize the importance of recognizing the problem and pursuing solutions. Methods: A total of 60 patients were included in the study (30 patients from the obesity center and 30 patients without obesity as the control group). Assessment of androgen hormone deficiency and erectile dysfunction was conducted through the implementation of AMS and IIEF-5 tests. The questionnaire includes aspects of medical history, demographic features, and lifestyle factors. Comprehensive measurements included BMI, WC, BP, lipid panel, total/free testosterone, sex-hormone-binding-globulin (SHBG), dehydroepiandrosterone-sulfate (DHEAS), fasting blood glucose (FBG), fasting insulin, and HbA1C levels. Results were evaluated using SPSS. Results: The AMS score in the obesity group was significantly lower compared to the group without obesity. The IIEF-5 score did not exhibit a statistically significant difference between the groups. Testosterone, free testosterone, SHBG, and HDL values were lower in the obesity group compared to the group without obesity. Conclusion: Although conducted in a small sample, our findings strongly indicate a positive correlation between obesity and the risk of moderate to severe ED. Most of the time, this condition goes unarticulated, thereby adversely affecting the quality of life for individuals with obesity. Clinicians should pay more attention to patients experiencing sexual dysfunction, especially those with obesity.