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Kivanc Derya Peker

Kivanc Derya Peker
Basaksehir Cam and Sakura Training and Research Hospital · Department of Gastrointestinal Surgery

M.D. Ph.D.

About

46
Publications
10,235
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142
Citations

Publications

Publications (46)
Article
Full-text available
The aim of this study was to consider levels of the proinflammatory cytokines IL-1 and TNFα after thyroid surgery. A total of 200 patients who underwent total thyroidectomy enrolled in this study. Drain fluid samples were taken. IL-1 and TNFα results and their relationship with other factors were analyzed. There was a positive correlation between I...
Article
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Objective : To evaluate the quality of life in patients, who had their limbs salvaged with an infrageniculate bypass and minor amputation in the long term and to see if diabetics are prone to worse results. Methods: The patients with limb salvage following an infrageniculate bypass and minor amputation were asked to complete Short Form 36 at the l...
Article
Full-text available
Objective: Tumor markers have shown little benefit as a method for screening. However, they can be used clinically for the monitoring of tumor recurrence and used as prognostic factors because higher levels have been observed in advanced disease. This study aimed to investigate the relationship between the preoperative tumor marker levels and diffe...
Article
Introduction An increased number of tumor infiltrative lymphocytes (TILs) is considered a favorable prognostic factor in various cancers because it is a marker of antitumoral activity of the immune system. In this prospective, non-randomized clinical trial, we evaluated the impact of preoperative immunonutrition on tumor infiltrative lymphocytes an...
Article
Full-text available
Aim:Intestinal obstruction due to colorectal cancer should be urgently decompressed due to high morbidity. Its treatment includes palliative interventions, emergency laparotomy and bridge to surgery. In this study, we aimed to evaluate the effects of stenting on surgical and oncological outcomes by comparing it with the emergency surgery.Method:Pat...
Article
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Background The COVID-19 pandemic caused by SARS-CoV-2 commenced in Wuhan China in 2019 and soon spread worldwide. SARS-CoV-2 enters the cell by binding to the ACE II receptor and begins viral replication. The effects and clinical findings of SARS-CoV-2 on the liver, kidney, heart, gastrointestinal (GI) system and especially lungs have been widely d...
Article
Introduction: This study aims to investigate the role of main bile duct drainage and gallbladder transpapillary drainage in the treatment of patients who diagnosed with acute cholecystitis and acute cholangitis because of choledocholithiasis. Materials and methods: Patients who were admitted to the hospital with the diagnosis of acute cholecysti...
Preprint
Full-text available
Background: The COVID-19 pandemic caused by SARS-CoV-2 commenced in Wuhan China in 2019 and soon spread worldwide. It is a viral disease that involves many organs and progresses with high mortality. SARS-CoV-2 enters the cell by binding to the ACE II receptor and begins viral replication. A serious immune response occurs where it settles leading to...
Article
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Introduction: Routine drainage of the abdominal cavity has been widely accepted in the diagnosis and treatment of complications, but many studies have questioned the usefulness of drainage. In complications after laparoscopic sleeve gastrectomy (LSG), the value of routine drainage is unknown. To determine whether routine drainage is required after...
Article
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COVID-19 pandemic is spreading rapidly in Turkey. We aimed to examine the numbers and demographic data of patients who applied to the general surgery outpatient clinics and operated in this process. Our primary outcome is to reveal the response of general surgery patients to the COVID-19 pandemic. The first COVID-19 case in Turkey has appeared in M...
Article
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Objective: Multimodal pain management combined with epidural analgesia and transversus abdominal plane (TAP) block after obesity surgery, reduces side effects of opioids by decreasing its usage and ensuring effective postoperative pain control in obese patients with expanded fat mass. But performing both epidural and TAP block in obese patients is...
Article
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Amaç: Çalışmamızda, dispepsi tanısı almış hastaların biyopsi materyallerinde Sydney Sınıflama Sistemine göre H. pylori ve histopatolojik değişikliklerin tespit edilmesi ve bu parametrelerin H. pylori ile birlikteliğinin değerlendirilmesi amaçlandı. Gereç ve yöntem: Dispeptik şikayetlerle başvuran ve endoskopi endikasyonu olan 88 hastadan antrum ve...
Article
Full-text available
Introduction: This study aimed to investigate the effect of melatonin on the healing of colon anastomosis following chemotherapy. Methods: 32 rats were randomised into four groups: (a) control group (Group 1), which underwent sigmoid colon transaction and primary anastomosis; (b) melatonin group (Group 2), which received melatonin daily followin...
Article
Full-text available
Extragastrointestinal stromal tumors that arise in the pancreas are extremely rare and managing them can be difficult, particularly if located in the head of pancreas. This case report aims to contribute to the existing data in the literature regarding extragastrointestinal stromal tumors with rare and unusual locations. We present a 56-year-old ma...
Article
Full-text available
Introduction: Gallbladder perforation (GBP) is a rare disease with potential mortality. Previous series have reported an incidence of approximately 2-11% and it still continues to be a significant problem for surgeons. Aim: To present our clinical experience with gallbladder perforation. Material and methods: The records of 2754 patients who r...
Article
Full-text available
Background: Performance of urgent colonoscopy for the purposes of diagnosis and treatment of Ogilvie's syndrome remains controversial. However, no trials have directly compared neostigmine with endoscopic therapy. This study aimed to compare the effect of neostigmine and colonoscopic decompression in the treatment of Ogilvie's syndrome. Methods:...
Article
Full-text available
Purpose Our aim was to investigate the effectiveness of the pathological evaluation of endoscopic biopsies obtained with esophagogastroduodenoscopy (EGD) according to Sydney classification prior to sleeve gastrectomy in identifying the risk of staple line leak, independently of clinical diagnosis. Setting Bakırköy Dr. Sadi Konuk Training and Resea...
Article
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Abstract: Purpose: The aim of this study was to compare early and delayed cholecystectomy for the treatment of acute calculous cholecystitis. Material-method: The medical records of patients who were diagnosed to have acute calculous cholecystitis (ACC) by combined clinical and radiological examination were evaluated retrospectively. The patients w...
Article
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Introduction: A stoma formation is a frequently performed procedure in patients undergoing colorectal surgery. Although stoma formation is a simple process, it should be performed with caution. The aim of this study was to attract physicians' attention to this rare disease and also to identify the surgical and medical treatment options for peristo...
Article
Full-text available
Objective:Laparoscopic subtotal cholecystectomy could be an alternative to open cholecystectomy if the anatomy of the gallbladder is not suitable for total cholecystectomy. The purpose of this study was to share our experience in difficult cholecystectomies. Material and Methods: The records of 2250 patients, who underwent cholecystectomy in the...
Article
Full-text available
Midesophageal pulsion diverticula are rare and asymptomatic clinical entities, which usually develop secondary to esophageal motor dysfunction. Diverticulectomy with myotomy is one of the surgical treatment options. In this case report, we present a patient with midesophageal pulsion diverticulum in whom we managed the postoperative leakage followi...
Article
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Background: Ghrelin has been reported to have properties such as inducing proliferation, migration and angiogenesis of vascular endothelial cells and has anti-inflammatory effects which may help wound healing in anastomosis following neoadjuvant radiotherapy. Materials and methods: Rats were randomized into 4 groups: control group (1) underwent col...
Article
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Background The aim of this study was to identify the diagnostic role of plasma calprotectin value for a distinction of presence acute appendicitis and the indifference of uncomplicated from complicated acute appendicitis. Methods Plasma calprotectin, white blood cell and C-reactive protein values of 89 patients, who have undergone laparoscopic app...
Article
Full-text available
The aim of the study is to examine the importance of Rockall scoring system in long-term setting to estimate re-bleeding and mortality rate due to upper gastrointestinal bleeding. A total of 321 patients who had been treated for upper gastrointestinal bleeding were recruited to the study. Patients’ demographic and clinical data, the amount of blood...
Article
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Background: The presence of postoperative bile leak is the major outcome measure for the assessment of operative success in partial cystectomy for hydatid liver disease. However, the optimal operative strategy to reduce the postoperative bile leak rate is yet to be defined. Methods: Medical records of patients who underwent partial cystectomy fo...
Article
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A case of intramural esophageal dissection is reported and the literature reviewed. Intramural esophageal dissection is a rare but well described condition that is characterized by a laceration between the esophageal mucosa and submucosa but without perforation. A female patient aged 86 years was hospitalized, diagnosed as having an abdominal aorti...
Article
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It has been reported that proton pump inhibitors induce relaxation in different types of smooth muscles. The aim of this study is to investigate in vitro effects of proton pump inhibitors on human pylorus muscle. Pyloric sphincters were studied in 10 patients who were operated for stomach cancer. In isolated organ bath, control and re-sponse to rab...
Article
Full-text available
A rare case: a large perianal epidermal cyst Perianal epidermal cyst is a rare entity. A 44 year old male presented with perianal swelling which was progressively increasing in size. Pelvic tomography revealed a 7 cm cystic tumor. The tumor was excised totally and pathological diagnosis was epidermal cyst. To our knowledge, here we report the eleve...
Article
Full-text available
Introduction: Despite adequate treatment with proton pump inhibitors (PPIs), symptoms of gastroesophageal reflux disease (GERD) may remain persistent as well as Barrett's esophagus may emerge. It may be proposed that the relaxant effect of PPIs on the smooth muscles may lead to resistance of symptoms. The aim of this study is to investigate effect...

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Project (1)
Project
Routine Preoperative EGD, UGI, and H. pylori Screening: They Are Necessary for sleeve gastrectomy