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Search Results: 1 - 10 of 1969 matches for " Sumer Aziz "
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Isolated duodenal rupture due to blunt abdominal trauma
Celik Atilla,Altinli Ediz,Onur Ender,Sumer Aziz
Indian Journal of Critical Care Medicine , 2006,
Abstract: Duodenal rupture following blunt abdominal trauma is rare and it usually seen with other abdominal organ injuries. It represents approximately 2% to 20% of patients with blunt abdominal injury and often occurs after blows to the upper abdomen, or abdominal compression from high-riding seat belts. Two cases of blunt duodenal rupture successfully treated surgically, are presented with their preoperative diagnosis and final out comes.
Pure SILS Floppy Nissen Fundoplication with Hiatal Repair: A Case Report
Umut Barbaros,Tugrul Demirel,Aziz Sumer,Ugur Deveci
ISRN Gastroenterology , 2011, DOI: 10.5402/2011/347487
Abstract:
Serum YKL-40 Levels in Patients with Esophageal Squamous Cell Carcinoma
Ozkan Yilmaz,Ozgur Kemik,Ahu Kemik,Aziz Sumer
Cancer Growth and Metastasis , 2011,
Abstract:
An Early Warning Model with Technical Indicators: The Case of Ise (Istanbul Stock Exchange)  [PDF]
Kutluk Kagan Sumer
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.54022
Abstract:

In this study, the technical indicators are used in forecasting whether stock prices will rise, fall or will be constant at the following day. The indicators are generated by taking into account the daily stock returns. If the daily stock returns are positive, the indicator is coded as “+1”; if the daily stock returns are constant, the indicator is coded as “0” and at least if the daily stock returns are negative, the indicator is coded as “-1”. These indicator values express the dependent variable of ordered choice models which independent variables are technical indicators. The ordered choice models are applied to all of the stocks of ISE (Istanbul Stock Exchange).

An analysis of 13 patients with perforated gastric carcinoma: A surgeon's nightmare?
Cetin Kotan, Aziz Sumer, Murat Baser, Remzi K?z?ltan, M Ali Carparlar
World Journal of Emergency Surgery , 2008, DOI: 10.1186/1749-7922-3-17
Abstract: A total of 13 patients with gastric cancer perforation were retrospectively reviewed. The clinicopathological features including tumor stage and survival and also the type of treatment were analyzed and compared to literature data.There were 13 patients (10 males and 3 females) with a mean age of 59.0 ± 9.56 years. The incidence of perforated gastric cancer was 9.6% among gastric carcinoma and 4.2% of all gastric perforation cases. The perforation was more frequently in stage III–IV (2–10), but one case of stage II (T3N0M0) gastric cancer was also observed. None of the patients had curative resection or radical lymph-node dissection. Six (46%) patients were treated by palliative, local surgery. Emergency gastrectomy were performed in 7 (54%) patients. Overall 30-day mortality rate was % 46. The overall survival time was 128.2 ± 184.8 days for all patients, it was 52.8 ± 52.9 days for locally treated group, and 192.9 ± 235.4 days for patients who underwent resectional surgery. The difference between the treatment groups was not significantPerforation usually occurs in advanced stages of gastric cancer. These patients had a poor prognosis because of the presence of advanced cancer.Oncologic emergencies in patients with gastric cancer include perforation and major bleeding. These complications require emergency treatment and have a high mortality rate[1,2]. Perforated gastric cancer (PGC) is a rare condition with a reported incidence of 0.3–3.9%, and generally present with histories and symptoms that do not differ obviously from those of benign gastric perforation [1-5]. In most instances, gastric carcinoma is not suspected as the cause of perforation prior to emergency laparotomy [6]. Even during surgery the gastric ulcer is often difficult to be characterized as benign or malignant by the surgeon, especially when a frozen section is unavailable [6,7].Since PGC is clinically characterized by generalized peritonitis and frequently occurs at an advanced stage of the dis
The relationship among acute-phase response proteins, cytokines and hormones in cachectic patients with colon cancer
Ozgur Kemik, Aziz Sumer, Ahu Kemik, Ismail Hasirci, Sevim Purisa, Ahmet Dulger, Baris Demiriz, Sefa Tuzun
World Journal of Surgical Oncology , 2010, DOI: 10.1186/1477-7819-8-85
Abstract: C-reactive protein (CRP), albumin, IL-1α, IL-1β, IL-6, IL-8, IL-10, TNF-α, midkine, VEGF-A, VEGF-C, leptin, adiponectin, and ghrelin serum levels are studied in 126 colon cancer patients and 36 healthy subjects.We found statistically significant difference and correlations between two groups. We found significantly higher serum CRP, IL-1α, IL-1β, IL-6, IL-8, IL-10, TNF-α, VEGF-A, VEGF-C and leptin concentrations in patients relative to controls (p < 0.001). We found lower levels of the serum albumin, midkine, adiponectin and ghrelin in patients compared to control subjects (p < 0.001).Cachexia in patients with colon cancers is associated with changes in APRP, cytokines and hormone concentrations. These biomarkers and cachexia together have a direct relationship with accelerated angiogenesis. This may lead to a connection between the outcomes in malignancies and the biomarkers.Cachexia due to cancer is one of the most frequent features of malignancy [1], it accounts up to 30-50% of cancer-related deaths in gastrointestinal tract malignancies [2]. Cachexia due to cancer is a complex metabolic disorder, including loss of adipose tissue due to lipolysis, loss of skeletal muscle mass, elevation of resting energy consumption, anorexia, and reduction of oral food intake [3,4].Despite intensive studies that have been conducted thus far in this field, the multi-factorial pathological mechanism of cancer-related cachexia has not been fully exhibited, besides currently available treatment modalities remain profoundly unsatisfactory [5]. Nevertheless, it is well known that cytokine up-regulation contributes to involuntary weight loss, which is a hallmark of cancer-related cachexia [6,7]. Although the catabolism is mainly mediated by the effects of certain cytokines, such as tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) [4,8], the mechanisms associated with cancer related anorexia are still not elucidated completely [9]. Previous studies conce
Small Bowel Obstruction due to Mesodiverticular Band of Meckel's Diverticulum: A Case Report
Aziz Sumer,Ozgur Kemik,Aydemir Olmez,A. Cumhur Dulger,Ismail Hasirci,Umit Iliklerden,Erol Kisli,Cetin Kotan
Case Reports in Medicine , 2010, DOI: 10.1155/2010/901456
Abstract: Meckel's diverticulum is the most common congenital anomaly of the small intestine. Common complications related to a Meckel's diverticulum include haemorrhage, intestinal obstruction, and inflammation. Small bowel obstruction due to mesodiverticular band of Meckel's diverticulum is a rare complication. Herein, we report the diagnosis and management of a small bowel obstruction occurring due to mesodiverticular band of a Meckel's diverticulum.
Serum YKL-40 Levels in Patients with Esophageal Squamous Cell Carcinoma
Ozkan Yilmaz, Ozgur Kemik, Ahu Kemik, Aziz Sumer, A. Cumhur Dülger, Ismail Hasirci, Nejat Almali, Sevim Purisa and etin Kotan
Cancer Growth and Metastasis , 2012, DOI: 10.4137/CGM.S7046
Abstract: Aims and background: YKL-40 is a glycoprotein secreted by macrophages, neutrophils and malignant tumor cells. YKL-40 is expressed and secreted by several types of tumors. The aim of this study examined the clinical usefulness of YKL-40 for detection in esophageal squamous cell carcinoma (ESCC). Methods: Using ELISA kits, we measured the concentration of YKL-40 in serum from 100 patients with ESCC and compared this concentration with healthy population. Results: We found significantly higher serum levels of YKL-40 in patients with ESCC compared to the healthy population (P < 0.0001). Conclusions: These results suggested that regarding serum YKL-40 as a tumor marker could be benefical in the early clinical diagnosis.
The High Frequency Decay Parameter κ (Kappa) in the Region of North East India  [PDF]
Renu Yadav, Dinesh Kumar, Sumer Chopra
Open Journal of Earthquake Research (OJER) , 2018, DOI: 10.4236/ojer.2018.72009
Abstract:
The high frequency decay parameter κ has been considered as one of the important parameters required in the simulation of earthquake strong ground motions necessary for the proper evaluation of seismic hazard of a region. The present study estimated “κ” for the highly seismic active region of North East India. The spectral analysis of 598 accelerograms of 32 earthquakes has been done using [1] approach for this purpose. The average values of “κ” have been found to be 0.049, 0.047 and 0.040 for L-, T- and V-component respectively. The distance dependence of κ is not significant in the region. The κ 0 (κ at R = 0) for soft rock stations is found to be more than those of hard rock sites in consistent with other similar studies. The correlation between “κ” and earthquake magnitude at most of the stations for the region under study is not significant which indicates that κ depends on the site conditions in the region. The κ values estimated in the present study are useful for the evaluation of seismic hazard of the region.
SILS Incisional Hernia Repair: Is It Feasible in Giant Hernias? A Report of Three Cases
Umut Barbaros,Tugrul Demirel,Aziz Sumer,Ugur Deveci,Mustafa Tukenmez,Mehmet Ibrahim Cansunar,Murat Kalayci,Ahmet D?nccag,Ridvan Seven,Selcuk Mercan
Diagnostic and Therapeutic Endoscopy , 2011, DOI: 10.1155/2011/387040
Abstract: Aim. Three incisional ventral abdominal wall hernias were repaired by placing a 20 × 30?cm composite mesh via single incision of 2?cm. Methods. All three cases had previous operations and presented with giant incisional defects clinically. The defects were repaired laparoscopically via single incision with the placement of a composite mesh of 20 × 30?cm. Nonabsorbable sutures were needed to hang and fix the mesh only in the first case. Double-crown technique was used in all of the cases to secure the mesh to the anterior abdominal wall. Results. The mean operation time was 120 minutes. The patients were mobilized and led for oral intake at the first postoperative day. No morbidity occurred. Conclusion. Abdominal incisional hernias can be repaired via single incision with a mesh application in experienced centers. 1. Introduction The repair of ventral hernias has evolved from simple suture approximation to the use of prosthetic mesh and, recently, laparoscopic procedures. Laparoscopic ventral herniorrhaphy (LVH) was first described in 1993 by LeBlanc and Booth [1]. Since then, the minimally invasive operations have become more popular, due to improved patient outcomes reported in several studies [2–4]. Large series of laparoscopic ventral hernia repair have shown excellent results. As the laparoscopic approach had gained wide acceptance further minimally invasive techniques have been the main issues of argue. We here report a completely reproducible and safe technique for the repair of large incisional hernias purely performed through a single incision by “double-crown” mesh fixation technique. 2. Patients and Methods All of the cases had previous operations and had giant incisional hernias. The first patient was a 63-year-old female patient who had an abdominal hysterectomy and bilateral salpingoophorectomy 3 years before for endometrial cancer via a median abdominal incision presented with a wide ventral incisional hernia. The second patient was a 65-year old male who had had a laparotomy via right subcostal incision for cholecystectomy. He referred us with a large incisional hernia, and the third patient was a 52-year-old woman who had a median laparotomy for ileus after an abdominal hysterectomy and bilateral salpingoophorectomy via open approach with a large hernia under the incisions. 3. How We Do It The patients were entubated under general anesthesia. Gastric and bladder catheters were placed. All of the procedures were conducted via a flexible 3-channel port (SILS Port, Covidien, USA). The SILS port was placed in the middle between anterior
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