YELDA DERE

Dr. YELDA DERE

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

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

Representative Publications

View All Publications
4 January 2019 in Indian Journal of Otolaryngology and Head & Neck Surgery
Verified
Journal Article
Closed access
PDF file
ACAylin Orgen Calli
Aylin Orgen Calli
YDYELDA DERE
YELDA DERE
ASAysegül Sari
Aysegül Sari
FDFikret Dirilenoglu
Fikret Dirilenoglu
IOIrem Onur
Irem Onur
KIKadir İmRe
Kadir İmRe

11 February 2019 in TURKISH JOURNAL OF MEDICAL SCIENCES
Verified
Journal Article
Open access
SESumeyye Ekmekci
Sumeyye Ekmekci
UKUlku Kucuk
Ulku Kucuk
YDYELDA DERE
YELDA DERE
EÇEbru Çakir
Ebru Çakir
HSHatice Ceren Sayar
Hatice Ceren Sayar
OBOzan Bozkurt
Ozan Bozkurt
Background/aim: This study was designed to determine the characteristic features of upper urinary system urothelial carcinomas (UUSUCs) and to evaluate the clinicopathological parameters associated with prognosis. Materials and methods: A total of 74 cases of UUSUC were included, from three different centers. Demographic data and histopathological features such as tumor localization, concomitant tumor in the urinary system, distant metastasis with overall survival and disease-free survival obtained from the hospital records were evaluated retrospectively. Histopathologic prognostic features such as grade, perineural invasion, lymphovascular invasion, tumor necrosis, and surgical margin status were also evaluated. Results: Seventy cases (94.6%) underwent open nephroureterectomy whereas 4 cases (5.4%) had laparoscopic nefroureterectomy. Thirty-eight (51.4%) cases were located in the pelvis, 7 (9.5%) in the ureter, 29 (39.2%) both in the pelvis and ureter. Fifty-six (75.7%) cases were alive; however, 18 (24.3%) patients were found to be dead. pTa, pT1, pT2, pT3, and pT4 tumors were reported in 16 (21.6%), 13 (17.6%), 4 (5.4%), 28 (37.8%), and 13 (17.6%) patients, respectively. Histopathologically, 17 cases (23%) were low-grade, 57 cases (77%) were high-grade. Statistically significant correlation was observed between overall survival and lymph node metastasis, distant metastasis, tumor necrosis, and differentiation by univariate analysis. Only distant metastasis was statistically associated with overall survival by multivariate analysis. We found no significant relationship between disease-free survival and all parameters. Conclusions: Differentiation and necrosis of tumor, lymph node involvement, and presence of distant metastasis is associated with the overall survival of urothelial carcinoma of the upper urinary system.

1 May 2024 in International Journal of General Medicine
Verified
Journal Article
Open access
PDF file
ÖDÖZCAN DERE
ÖZCAN DERE
YDYELDA DERE
YELDA DERE
Background: Colorectal cancers (CRC) are one of the most common tumors that are being researched for new biomarkers worldwide. In this context, studies are being carried out to estimate whether various hematological parameters can be used for predicting prognosis. In this study, our aim was to evaluate the relation between platelet (PLT) levels as well as neutrophil-to-lymphocyte ratio (NLR), platelet (PLT)-to-lymphocyte ratio (PLR), and Lymphocyte-to-CRP ratio (LCR) which are easily accessible inflammatory response indicators. Methods: In this retrospective cross-sectional study, 111 patients diagnosed as colorectal adenocarcinoma were included. Patients with clinical evidence of an infection, recurrent colorectal cancer, previous history of a hematological disease, and a neoadjuvant chemo/radiotherapy were excluded. Demographic features such as age, gender, and histopathologic parameters such as tumor size, surgical margin status (proximal, distal, and radial), the presence of serosal inflammation, lymphovascular invasion (LVI), perineural invasion (PNI), lymph node metastasis (LNM) and distant metastasis, preoperative blood sample analysis, and CRP levels were noted. Statistical analysis for the association between hematologic parameters platelet (PLT) levels as well as neutrophil-to-lymphocyte ratio (NLR), platelet (PLT)-to-lymphocyte ratio (PLR), and Lymphocyte-to-CRP ratio (LCR) and histopathological features were done. Results: Among 111 patients, the mean age was 65.37, and the mean tumor size was 5.41 cm. Lymphovascular invasion, perineural invasion, radial surgical margin positivity, lymph node metastasis, localization, and stage were statistically significantly related to the number of platelets. For NLR, PNI (p=0.001), LNM (p=0.048), and stage (early/advanced) (p=0.045) were significantly related. None of the parameters were related to PLR and LCR. Conclusion: Perineural invasion, lymph node metastasis, and the stage of the tumor could be the major histopathological features that could be related to hematologic parameters; however, this should be researched by larger studies as if they can be used as prognostic markers.

1 October 2020 in The Annals of The Royal College of Surgeons of England
Verified
Journal Article
Closed access
YDYELDA DERE
YELDA DERE
SES Ekmekçi
S Ekmekçi
IAİ Akarken
İ Akarken
ÜKÜ Küçük
Ü Küçük
Introduction: Upper urinary tract urothelial carcinomas are very rare tumours with different biological behaviours. The Epstein–Barr virus, which is the first known oncogenic virus, is being investigated for various malignant tumours. It is known that this virus is associated with nasopharyngeal carcinoma, as well as multiple haematological malignancies, head and neck and gastric cancers. We aimed to determine the presence of the Epstein–Barr virus in upper urinary tract urothelial carcinomas using chromogenic in situ hybridisation (CISH). Materials and methods: A total of 44 upper urinary tract urothelial carcinomas from two different centres were included. Demographic data and survival rates were obtained from hospital records. One demonstrative paraffin block from each case was stained using Epstein–Barr encoded RNA (EBER) with an automated CISH procedure. The positivity of EBER was statistically analysed for prognostic factors. Results: Among all patients, 38 were male and 6 were female. The mean age of the patients was 65.93 years. At the time of the study, 15 patients had died and 29 were alive. EBER-CISH positivity was found in 13 patients. Four showed strong EBER-CISH expression and nine showed weak expression. EBER-CISH positivity was not statistically related to any of the prognostic factors or to overall survival. Discussion: Although EBER-CISH positivity showed no significant relation with prognostic factors, it was observed in one-third of all cases. Therefore, we think that the Epstein–Barr virus may have a role in the pathogenesis of upper urinary tract urothelial carcinomas. This finding needs to be supported by larger studies.

18 March 2020 in Turkish Journal of Surgery
Verified
Journal Article
Open access
PDF file
FEFunda Dinç Elibol
Funda Dinç Elibol
YDYELDA DERE
YELDA DERE
ABAhmet Korkut Belli
Ahmet Korkut Belli
CECenk Elibol
Cenk Elibol
ÖDÖZCAN DERE
ÖZCAN DERE
ONOkay Nazlı
Okay Nazlı
This study aimed to evaluate outcomes, complications, and follow-up results of ultrasound-guided vacuum-assisted breast biopsy (UG-VABB) in BI-RADS 4 A and B lesions. Between Agust 2014 to January 2018, fifty BI-RADS 4A and BI-RADS 4B lesions of 41 patients biopsied with 10G vacuum needle by a single radiologist were retrospectively evaluated. All patients were females and mean age of the 41 patients was 50.12 ± 8.63. Of all lesions, 84% was benign, 6% was ADH, 4% was in-situ cancer, and 6% was diagnosed as malign. Follow-up duration after VABB was 0-51 months and mean was 20.92 months. Complications were as vasovagal-induced seizure in 3 patients (7.3%) and intramammary hematoma in 16 patients (39%). Hematoma was diagnosed in 3 patients (7.3%) at the 6th month follow-up and it was resolved in all patients at the 12th month follow-up. Higher breast density resulted in higher hematoma rates. There was no relationship between lesion BI-RADS subgroups, lesion size or sample number and hematoma development. During the follow-up, residue lesion in 1 (2.4%) patient and scar tissue in 2 (4.9%) patients was detected. US-guided VABB, with low complication rates and low scar development, is also a therapeutic excision method without remaining residue, which should be primarily preferred in smaller than 2 cm BI-RADS 4A and 4B lesions whose malignancy rates are relatively low. Hematoma, which is the most frequent complication, resorbed entirely in the 12th month in all patients.

12 March 2021 in Journal of Turkish Society of Obstetric and Gynecology
Verified
Journal Article
Open access
ASAhmet Akın Sivaslıoğlu
Ahmet Akın Sivaslıoğlu
SKSezen Köseoğlu
Sezen Köseoğlu
FEFunda Dinç Elibol
Funda Dinç Elibol
YDYELDA DERE
YELDA DERE
AKAyavar Cem Keçe
Ayavar Cem Keçe
EÇEray Çalışkan
Eray Çalışkan
There is a growing debate on the existence of the G-spot. G-spot amplification by various surgical interventions has become mainstream for esthetic vaginal surgery despite a lack of conclusive proof of the G-spot. The aim of this study was to search for histologic evidence in regions of so-called hyperintense focus (HF) (considered as the G-spot) using magnetic resonance imaging (MRI) mapping and biopsied tissues. Fifteen patients who had grade 2 or higher anterior compartment defects were enrolled in the study. All patients were subjected to MRI. When a HF was seen, its localization, dimensions, and distances to adjacent structures were measured in images. Dissections in the anterior vaginal wall were performed in accordance with the measurements derived from MRI and tissue measuring 0.5x0.5 cm was biopsied from the determined HF. An HF was determined in MRI of three (20%) patients. However, no significant neurovascular tissue density was observed histologically in any of the biopsy specimens obtained from the surgical dissections under the guidance of MRI mapping. Our findings denote that there is no G-spot in the anterior vaginal wall.