Yüksel Çalık

Dr. Yüksel Çalık

orcid

Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

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

Representative Publications

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8 April 2025 in Bratislava Medical Journal
Verified
Journal Article
Open access
PDF file
HEHüseyin Esin
Hüseyin Esin
NKNurettin Kahramansoy
Nurettin Kahramansoy
YÇYüksel Çalık
Yüksel Çalık
CKCem Karaali
Cem Karaali
OÜOrhan Üreyen
Orhan Üreyen
ŞKŞükran Köse
Şükran Köse
Objective: We aimed to compare scoring systems and peripheral inflammatory biomarkers in estimating mortality among Fournier's gangrene (FG) patients. Background: Multiple scoring systems and biomarkers are utilized to assess FG severity and predict mortality. However, these indices have complexities, limitations, and inconsistencies. Therefore, alternative methods and parameters are investigated. Materials and Methods: Each patient’s clinical and laboratory data are well documented at hospitalization, Fournier's gangrene severity index (FGSI), Uludag FGSI (UFGSI), simplified FGSI (SFGSI), and age-adjusted Charlson comorbidity index (ACCI) scores and peripheral blood parameters and ratios were calculated. Patients were compared in two groups as deceased and survived ones. Results: Among the 160 patients, 35 (21.9%) died. Diabetes was the most prevalent comorbidity. Deceased patients had significantly higher FGSI, UFGSI, ACCI, and SFGSI scores compared to the survivors (p < 0.001). Among the prognostic parameters, only the red cell distribution width (RDW) value was statistically significantly higher in the non-surviving group (p < 0.05). Multivariate analysis identified age, elevated blood urea nitrogen, symptom duration, disease extent, and malignancy as independent prognostic factors. Conclusion: FGSI, UFGSI, SFGSI, and ACCI are reliable prognostic scores in FG and aren’t superior to each other. Age, blood urea nitrogen levels, duration of symptoms, disease extent, and coexisting malignancy were found to be independent prognostic factors. Given its rapid and cost-effective nature, RDW should be considered alongside other established parameters in future prognostic models. A new scoring method that includes these variables would be practical and worth testing.

18 September 2026 in Healthcare
Verified
Journal Article
Open access
PDF file
GAGöksever Akpınar
Göksever Akpınar
OAOlcay Atbaş
Olcay Atbaş
SVSafa Vatansever
Safa Vatansever
BEBatuhan Eyduran
Batuhan Eyduran
YÇYüksel Çalık
Yüksel Çalık
KPKamil Pehlivanoğlu
Kamil Pehlivanoğlu
Background/Objectives: The evolution of minimally invasive techniques has established advanced laparoscopic skills as an increasingly essential component of surgical curricula. However, the feasibility of senior residents performing technically demanding procedures such as Laparoscopic Colorectal Surgery (LCS) remains debated. This study evaluated the perioperative safety, short-term oncologic outcomes, and operative-time implications of supervised Laparoscopic Colorectal Surgery (LCS) performed by senior residents (post-graduate years 3 to 5 of a 5-year program). Methods: A retrospective observational cohort study of 136 patients undergoing curative-intent LCS for primary colorectal malignancy was conducted. Patients were stratified into a Specialist group (n = 102) and a Resident group (n = 34). Residents were senior trainees operating under the direct intraoperative supervision of experienced specialists. Perioperative metrics, patient safety endpoints, and short-term oncologic outcomes were compared. Results: The groups were demographically and pathologically well-matched, demonstrating similar distributions of advanced-stage (T3–T4) tumors and high Body Mass Index. Median operative time was significantly prolonged in the Resident group (340 vs. 290 min; p = 0.023). However, no significant differences were observed regarding the median length of hospital stay (9 vs. 8 days; p = 0.057), the incidence of anastomotic leakage (3.4% vs. 3.8%; p = 1.000), or positive surgical margin rates (5.9% vs. 10.8%; p = 0.517). No statistically significant difference in median lymph node yield was detected between the Resident and Specialist cohorts (17 vs. 16 nodes; p = 0.251). Conclusions: Under direct specialist supervision, resident-performed LCS was associated with no material difference in the measured short-term outcomes within this single-center supervised training model and the eligibility criteria used. The prolongation of operative time associated with resident participation appears to be a safe and acceptable aspect of surgical training.