Feyyaz Gungor

Dr. Feyyaz Gungor

orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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1 May 2019 in Asian Journal of Surgery
Verified
Journal Article
Open access
TATuran Acar
Turan Acar
NANihan Acar
Nihan Acar
FGFeyyaz Gungor
Feyyaz Gungor
EKErdinç Kamer
Erdinç Kamer
HGHilmi Güngör
Hilmi Güngör
MHMehmet Haciyanli
Mehmet Haciyanli
Anal fissure which is defined as a longitudinal tear in anoderm under the dentate line is one of the most common benign diseases of anorectal area, and due to the severe pain during the defecation and emotional stress that it causes may reduce people's quality of life. There are several treatment methods such as medical substances and surgical procedures. In this retrospective study, we aimed to evaluate the safe and adequate option of lateral internal sphincterotomy (LIS) in chronic anal fissure treatment. This study is a retrospective study in which 417 patients who were treated for chronic anal fissure were included. Of 417 patients included in the study, 228 (54.7%) were female and the mean ± SD age was 36.1 ± 8.96 years (ranging from 17 to 73 years). Major complaints of patients; pain, bleeding, constipation, pruritus, perianal discharge. Recurrence occurred in 15 patients (3.6%) (12 males, three females) and eight patients (1.9%) developed incontinence (four with gas, four with soiling and seven females, one male). The complaints of all patients with gas incontinence and a patient with fluid incontinence regressed, whereas three patients had permanent fluid incontinence. LIS is still the gold standard for the treatment of chronic anal fissure when the physicians would like to avoid recurrence and obtain the best pain relief.

8 September 2020 in Acta Chirurgica Belgica
Verified
Journal Article
Closed access
FGFeyyaz Gungor
Feyyaz Gungor
YAYigit Atalay
Yigit Atalay
NANihan Acar
Nihan Acar
EGEmine Ozlem Gur
Emine Ozlem Gur
IKIbrahim Kokulu
Ibrahim Kokulu
ODOsman Nuri Dilek
Osman Nuri Dilek
Gallstone ileus (GI) is a rare entity which is seen in 0.5% of patients with cholelithiasis. In this study, we aimed to share our clinical approach to GI, to present our long-term results and to dr...

25 July 2019 in Turkish Journal of Gastroenterology
Verified
Journal Article
Open access
FGFeyyaz Gungor
Feyyaz Gungor
YSYunus Sür
Yunus Sür
EGEmine Özlem Gür
Emine Özlem Gür
ODOsman Nuri Dilek
Osman Nuri Dilek
Cite this article as: Güngör F, Sür Y, Gür EÖ, Dilek ON. A rare anatomical variation of the bile ducts: Cystic duct draining to the right hepatic duct. Turk J Gastroenterol 2019; 30(4): 375-6.

24 October 2025 in Surgical Endoscopy
Verified
Journal Article
Closed access
PDF file
YKYUSUF YUNUS KORKMAZ
YUSUF YUNUS KORKMAZ
OAOğuzhan Aydın
Oğuzhan Aydın
FGFeyyaz Gungor
Feyyaz Gungor
İKİlyas Kudaş
İlyas Kudaş
TSTalha Sarigoz
Talha Sarigoz
OBOzgur Bostanci
Ozgur Bostanci

12 May 2020 in Indian Journal of Surgery
Verified
Journal Article
Open access
PDF file
ODOsman Nuri Dilek
Osman Nuri Dilek
FGFeyyaz Gungor
Feyyaz Gungor
TATuran Acar
Turan Acar
AAArif Atay
Arif Atay
ŞKŞebnem Karasu
Şebnem Karasu
FDFatma Hüsniye Dilek
Fatma Hüsniye Dilek
Hepaticojejunostomy is a challenging and complex procedure to be done with confidence in conditions that contain a large number of segmental bile ducts. Portoenterostomy can be defined as the joining of multiple bile ducts into a single cavity using segmenter bile duct ends, stents, and surrounding connective tissues. During surgery, in cases with advanced stage biliary tract tumors that cannot be performed hepatectomy, after aggressive dissections to provide a negative surgical margin, a large number of segmental bile ducts can be revealed and needs to ensure the continuity of bile flow. Here, our clinical series of portoenterostomy (PE) in which we applied in patients who had aggressive hilar dissection and resection for hilar cholangiocarcinomas and biliary tract tumors were discussed. The study included 15 patients who underwent PE for biliary tract tumors and hilar cholangiocarcinomas between 2015 and 2019. Six of the patients had a tumor-negative surgical margin, with a mean follow-up of 14.4 months (range 2 to 28 months). Nine of the patients had a tumor-positive surgical margin, with a mean follow-up of 7.7 months (range 2 to 17 months). Portoenterostomy instead of hepaticojejunostomy in small and multiple biliary radicles and bile duct cancers has been successfully performed in 15 patients of bile duct cancer and Klatskin tumor. In the presence of active inflammation, fibrosis, major bile duct trauma, and thin bile duct radicles, this method, which is described in detail, provides an excellent salvage surgical procedure with less morbidity.

1 October 2025 in Langenbeck's Archives of Surgery
Verified
Journal Article
Open access
PDF file
ABAli Bekraki
Ali Bekraki
AIALİ LEVENT IŞIK
ALİ LEVENT IŞIK
OAOğuzhan Aydın
Oğuzhan Aydın
MVMuhammet Mustafa VURAL
Muhammet Mustafa VURAL
HBHakan Baydar
Hakan Baydar
FGFeyyaz Gungor
Feyyaz Gungor
Purpose Despite medical progress and laparoscopic cholecystectomy being standard for Grade II-III acute calculous cholecystitis in ASA II patients, optimal management, especially the timing of cholecystectomy (early vs. delayed) considering morbidity, risk-benefit, and cost, is still debated. While percutaneous cholecystostomy is definitive for ASA III/IV patients, its role as a bridge to cholecystectomy and the ideal interval in ASA II medically refractory cases remain unclear. Methods This retrospective study assessed the impact of initial percutaneous cholecystostomy on the timing, duration, and type of subsequent elective cholecystectomy in ASA Class II patients with Tokyo Grade II–III acute calculous cholecystitis. Percutaneous cholecystostomy was performed in patients with moderate cholecystitis unresponsive to conservative management and in those with severe cholecystitis presenting with negative predictive factors indicating a high risk of conservative treatment failure and perioperative complications. In both groups, the procedure served as a bridging intervention to stabilize patients before definitive surgery. The primary aim was to evaluate the effects of this strategy on surgical timing, complexity, and overall treatment outcomes. Results Of the 176 patients initially admitted with acute cholecystitis, 97 met the inclusion criteria, comprising those with Tokyo Grade II–III disease and classified as ASA II. Among patients who underwent laparoscopic cholecystectomy more than eight weeks after percutaneous cholecystostomy, 77% experienced prolonged operative durations, defined as procedures exceeding 60 min. Delayed surgical intervention in this specific cohort was consistently associated with a marked increase in both intraoperative complexity and technical difficulty during the laparoscopic cholecystectomy. Conclusions The liberal use of percutaneous cholecystostomy in patients with Tokyo Grade II–III acute calculous cholecystitis is not recommended. When percutaneous cholecystostomy is necessary as a bridging intervention prior to definitive surgical management, early laparoscopic cholecystectomy should remain the preferred approach in the majority of ASA II cases. Percutaneous cholecystostomy should be reserved for patients who are unresponsive to conservative treatment or present with contraindications to immediate surgery.