Mahmut Kaan Demircioğlu

Dr. Mahmut Kaan Demircioğlu

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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1 January 2022 in SiSli Etfal Hastanesi Tip Bulteni / The Medical Bulletin of Sisli Hospital
Verified
Journal Article
Open access
ZDZeynep Gul Demircioglu
Zeynep Gul Demircioglu
NANurcihan Aygun
Nurcihan Aygun
MDMahmut Kaan Demircioğlu
Mahmut Kaan Demircioğlu
BOBanu Yilmaz Ozguven
Banu Yilmaz Ozguven
MUMehmet Uludağ
Mehmet Uludağ
Objectives: In the present study, we investigated the effects of Vitamin D (vit D) deficiency on aggressiveness of papillary thyroid cancer (PTC). Methods: Patients with PTC confirmed with pathological examination, whom were operated by a single surgeon between 2012 and 2017, were included in the study. The data of the patients were analyzed retrospectively. Cancers other than PTC, patients with hyperthyroidism and/or using antithyroid drugs were excluded from the study. The patients were classified as four quartiles according to serum Vit D levels; category 1 (23.5 ng/mL). Results: A total of 133 patients (103 female, 30 male) with mean age of 46.4 +/- 13.6 (17-82) years were included in the study. There was no significant difference between the categories in terms of preoperative Vit D values according to the evaluated tumor aggressiveness characteristics. It was determined that the presence of tumor with a size above 1 cm and T3/4 tumor were not affected by Vit D level. There was no significant difference between Vit D categories regarding the characteristics of aggressiveness such as multicentricity, lymphovascular invasion, central, and lateral metastases. Conclusion: According to our results, serum Vit D levels are not associated with the aggressive tumor characteristics of PTC.

1 January 2020 in SiSli Etfal Hastanesi Tip Bulteni / The Medical Bulletin of Sisli Hospital
Verified
Journal Article
Open access
MDMahmut Kaan Demircioğlu
Mahmut Kaan Demircioğlu
ZDZeynep Gul Demircioglu
Zeynep Gul Demircioglu
MCMustafa Fevzi Celayir
Mustafa Fevzi Celayir
MMMehmet Mihmanli
Mehmet Mihmanli
CKCemal Kaya
Cemal Kaya
Objectives: Diverticular disease of the colon is a pathology that arises from outward ballooning of the mucosa due to some weakness in the muscle layer. Diverticular disease may range from symptomatic uncomplicated diverticular disease to symptomatic disease with complications, such as acute diverticulitis or diverticular bleeding. Acute colonic diverticulitis occurs in about 10- 25 % of patients. Methods: In this study, 134 patients who were admitted to our emergency clinic with complaints of abdominal pain between 2016-2019 and hospitalized with the diagnosis of acute diverticulitis were included. Patients' sex, age, presence of additional disease, increase in leukocyte and C-reactive protein (CRP), localization of diverticulitis, Hinchey classification, mean length of hospital stay and treatment were evaluated. The effects of these parameters on complications and recurrence were statistically analyzed. Results: The length of hospital stay was statistically significantly associated positively with the Hinchey classification (p<0.001). While 18 patients who were medically treated developed recurrence later, and this rate was statistically significant (p<0.001). When one of the factors, localization, which may play a role in the severity of the disease and recurrence are examined, was evaluated concerning its results in our study, we found that rectosigmoid location is an important factor for recurrence. We found that the localization in the colon and the severity of the disease were effective in the prognosis of acute diverticulitis. Conclusion: We believe that localization and the severity of the disease should be taken into consideration when planning surgery in these patients.

1 January 2021 in SiSli Etfal Hastanesi Tip Bulteni / The Medical Bulletin of Sisli Hospital
Verified
Journal Article
Open access
MDMahmut Kaan Demircioğlu
Mahmut Kaan Demircioğlu
ZDZeynep Gul Demircioglu
Zeynep Gul Demircioglu
NANurcihan Aygun
Nurcihan Aygun
BOBanu Yilmaz Ozguven
Banu Yilmaz Ozguven
IAIsmail Ethem Akgun
Ismail Ethem Akgun
MUMehmet Uludağ
Mehmet Uludağ
The Medical Bulletin of Sisli Etfal Hospital

1 January 2024 in Revista da Associação Médica Brasileira
Verified
Journal Article
Open access
PDF file
MDMahmut Kaan Demircioğlu
Mahmut Kaan Demircioğlu
ZDZeynep Gul Demircioglu
Zeynep Gul Demircioglu
ÖÇÖzlem ÇAKIR
Özlem ÇAKIR
KYKarolin Yanar
Karolin Yanar
MOMuveddet Banu Yilmaz Ozguven
Muveddet Banu Yilmaz Ozguven
POPınar YAZICI OZKAYA
Pınar YAZICI OZKAYA
Antioxidants have been considered a rational curative strategy to prevent and cure liver diseases involving oxidative stress. An acute obstructive jaundice rat model was established to investigate the in vivo hepatoprotective efficacy of Rosa pimpinellifolia L.

1 January 2023 in Revista da Associação Médica Brasileira
Verified
Journal Article
Open access
PDF file
YDYigit Duzkoylu
Yigit Duzkoylu
HKHuseyin Kilavuz
Huseyin Kilavuz
MDMahmut Kaan Demircioğlu
Mahmut Kaan Demircioğlu
SASoykan Arıkan
Soykan Arıkan
SSSerkan Sarı
Serkan Sarı
Colorectal cancer is one of the most common malignancies. Survival rates are directly related to the stage of cancer at the time of diagnosis, emphasizing the value of early diagnosis. Positron emission tomography with 18F-fluorodeoxyglucose is the gold standard imaging technique in staging, monitoring after treatment, and follow-up. We aimed to assess the importance of incidental 18F-fluorodeoxyglucose uptake by colon and rectum in positron emission tomography–computed tomography imaging to determine a significant cutoff value for further investigation using colonoscopy and histopathological assessment.

2 January 2025 in Cureus
Verified
Journal Article
Open access
MDMahmut Kaan Demircioğlu
Mahmut Kaan Demircioğlu
SSSerkan Sari
Serkan Sari
MKMehmet Saban Korkmaz
Mehmet Saban Korkmaz
GYGorkem Yildiz
Gorkem Yildiz
SASezer Akbulut
Sezer Akbulut
YSYigit Soytas
Yigit Soytas
Background Papillary thyroid cancer (PTC) is one of the most common cancers with a favorable prognosis. The prognosis is most commonly associated with lymph node metastasis. We investigated whether there is a relationship between the hemoglobin, albumin, lymphocyte, and platelet (HALP) score and PTC central region lymph node metastasis in the preoperative period. NLR (neutrophil/lymphocyte ratio), PLR (platelet/lymphocyte ratio), MLR (monocyte/lymphocyte ratio), PIV (pan-immune-inflammation value), PNI (prognostic nutritional index), SII (systemic immune-inflammation index) were analyzed as other predictive factors for PTC central region lymph node metastasis. Methods The data of 235 patients who were operated on for PTC and underwent additional central neck dissection in our clinic were analyzed retrospectively. The effect of the HALP score, NLR, PLR, MLR, PIV, PNI, and SII values on PTC central region lymph node metastasis was analyzed with univariate and multiple logistic regression analyses. Results The HALP score, NLR, PLR, MLR, PIV, PNI, and SII had no statistically significant effect on the number of positive lymph nodes in the central region, lymphatic invasion, vascular invasion, extra-thyroidal invasion in PTC (p>0.050 for each). For PTC, stage progression was associated with a decrease in preoperative PNI (OR=0.871; p=0.019). Conclusion There was a significant negative correlation between PNI and the stage of the PTC. No significant correlation was found between the HALP score and prognostic predictors of papillary PTC central lymph node metastasis. This may be related to the fact that PTC is a type of cancer that does not affect biochemical parameters much.