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Dive into the research topics where Bülent Aytaç is active.

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Featured researches published by Bülent Aytaç.


Advances in Therapy | 2006

Adult ileal intussusception: an unusual emergency condition.

Ahmet Karamercan; Osman Kurukahvecioglu; T. Utku Yilmaz; Gülbin Aygencel; Bülent Aytaç; Mustafa Sare

Adult intussusception occurs infrequently and differs from the childhood condition in its presentation, cause, and treatment. Nonspecific symptoms can delay diagnosis; most cases are diagnosed at emergency laparotomy. Increased use of computed tomographic scanning to evaluate patients with abdominal pain can enhance reliable preoperative diagnosis. Treatment entails simple bowel resection in most cases. Reduction is controversial, especially in cases of colonic intussusception. This report describes the diagnosis and management of a case of adult ileal intussusception caused by an inflammatory fibroid polyp—a rare lesion of the gastrointestinal tract.


Acta Chirurgica Belgica | 2004

Comparison of Shouldice and Lichtenstein repair for treatment of primary inguinal hernia.

Bülent Aytaç; Cakar Ks; Ahmet Karamercan

Summary Purpose: The purpose of this study was to compare the outcome following Lichtenstein open mesh repair or Shouldice repair for the surgical treatment of primary unilateral inguinal hernias. Patients and methods: Patients with primary unilateral inguinal hernia who underwent a Shouldice repair (n: 120) and a Lichtenstein open mesh techniques (n: 121) between 1994 and 1998 were evaluated retrospectively. Operation time, hospital stay, postoperative analgesic consumption and complications, return to work and recurrence after surgery were assessed and compared. Results: The two groups were comparable regarding age, types of hernia and the follow-up interval. There were no significant differences in hospital stay and postoperative complications. The number of recurrences differed significantly between the groups with five in the Shouldice group (4.1%) and one in the Lichtenstein group (0.8%) (p < 0.05). The need of analgesic medication after mesh repair was significantly lower than the Shouldice group (3.9 ±1.4 vs. 4.9 ±1.6 gr. p < 0.05). The operation time was 36±14 min. for Lichtenstein repair and 61 ± 12 min. for Shouldice repair (p < 0.05). The time for return to work was shorter in Lichtenstein group (17 ± 4 days) compared to Shouldice group (25 ±5 days) (p< 0.05). Conclusion: Shorter operation time, faster return to work, less need to analgesia and lower recurrence rate, shows the superiority of Lichtenstein repair against Shouldice repair in the surgical repair of primary unilateral inguinal hernia.


Acta Chirurgica Belgica | 2007

A small bowel fistula extending into a metastatic tumour due to lung carcinoma.

Ahmet Karamercan; H. Bostancy; Bülent Aytaç

Abstract We report the case of a 63-year-old man who presented with an abdominal mass that was subsequently found to be a metastasis of small cell lung carcinoma into which the small bowel had fistulized. After a detailed diagnostic workup, the involved segment of the small bowel was resected along with the mass. The patient is alive and well six months after surgery. Lung carcinoma metastases to the bowel and mesentery are rare. Resection of the metastatic mass gives the best palliation and improves short-term survival.


Turkish Journal of Medical Sciences | 2016

The effect of pneumoperitoneum on intravascular fibrinolytic activity in rats.

Kursat Dikmen; Asiye Uğraş Dikmen; Hasan Bostanci; Ahmet Karamercan; Münci Yağci; Murat Akin; Bülent Aytaç

BACKGROUND/AIM Venous stasis during pneumoperitoneum in laparoscopic surgery is closely related to fibrin synthesis and deposition. The etiologic factors underlying fibrinolysis or hypercoagulability are not clearly defined. This study aimed to determine the effects of pneumoperitoneum time and pressure on coagulation cascade and the fibrinolytic pathway. MATERIALS AND METHODS After the pneumoperitoneum model was established in rats, PAI-1, tPA, TAFI, D-dimer, and fibrinogen activities were evaluated in different time periods under different pressures in groups including 6 rats. Group 1 did not undergo any procedure. Group 2 received 8 mmHg of pressure for 30 min, Group III 8 mmHg for 60 min, Group IV 12 mmHg for 30 min, and Group V 12 mmHg for 60 min. RESULTS D-dimer levels had a tendency to decrease with increasing intraabdominal pressures. In both low and high pressure groups, fibrinogen had a tendency to increase with exposure time. There was no statistically significant difference among the study groups in terms of fibrinogen, D-dimer, and PAI-1. The levels of TAFI were significantly decreased with increasing pressure regardless of the exposure time. CONCLUSION Pneumoperitoneum of the coagulation system can be changed by duration of time and pressure.


Acta Chirurgica Belgica | 2009

Gastrocolic Fistula as a Complication after Gastrojejunostomy

Ahmet Karamercan; Hasan Bostanci; Bülent Aytaç

Abstract Gastrocolic fistula formation is an extremely rare complication of gastric ulcer disease. We report a case of a 55-year-old man who presented with a two-month history of abdominal discomfort, postprandial diarrhea, nausea and faecal vomiting. Upper gastrointestinal endoscopy showed an ulcer in the greater curvature of the stomach. Barium enema examination revealed an obvious gastrocolic fistula between the greater curvature of the stomach and the transverse colon. The involved segment of the colon was excised and truncal vagotomy and antrectomy was performed. The patient was discharged on the 7th postoperative day. It is concluded that cases with postprandial diarrhea and nutritional disturbances after gastric surgery should remind us of the probability of gastrocolic fistula formation.


Saudi Medical Journal | 2005

Recurrent laryngeal nerve injury and preservation in thyroidectomy.

Bülent Aytaç; Ahmet Karamercan


Gazi Medical Journal | 2006

PNEUMOPERITONEUM CAUSED BY PERFORATION OF PYOMETRA WITHOUT MALIGNANCY

Ahmet Karamercan; Hande Deniz; Ayda Biri; Bülent Aytaç


European Medical, Health and Pharmaceutical Journal | 2015

ISOLATED PRIMARY HYDATID CYST OF THE PANCREAS: A CASE REPORT

Mehmet Eren Yuksel; Bülent Aytaç; Ahmet Karamercan


European Medical, Health and Pharmaceutical Journal | 2014

PANCREATIC SCHWANNOMA: CASE REPORT

Bülent Aytaç; Ahmet Karamercan; Mehmet Eren Yuksel; Gamze Kulduk


Archive | 2008

Künt karın travması: Tanı yöntemlerinin değerlendirilmesi ve cerrahi sonuçlar

Ahmet Karamercan; Tonguç Utku Yılmaz; Mehmet Akif Karamercan; Bülent Aytaç

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