Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Kenan Caliskan is active.

Publication


Featured researches published by Kenan Caliskan.


Langenbeck's Archives of Surgery | 2006

Retained surgical sponge (gossypiboma) after intraabdominal or retroperitoneal surgery: 14 cases treated at a single center

Sedat Yildirim; A. Tarim; Tarik Zafer Nursal; Tulin Yildirim; Kenan Caliskan; Nurkan Törer; Erdal Karagulle; Turgut Noyan; Gokhan Moray; Mehmet Haberal

Background and aimsThe objective of this study was to present the etiology, clinical presentation, diagnosis, and management for 14 cases of gossypiboma [retained surgical sponge (RSS)] treated at a single center and to emphasize the importance of this potential complication.MethodsData for 14 cases of RSS treated between January 1999 and December 2004 were retrospectively assessed. The details of preoperative evaluation, demographic features, and operative findings were recorded. Use of, and findings from, abdominal x-ray, ultrasonography, computed tomography, magnetic resonance imaging, and upper-gastrointestinal endoscopy were also noted.ResultsIn all cases, the RSS was surgically removed. Thirteen of the 14 patients were symptomatic, and the most frequent finding was nonspecific abdominal pain and intestinal obstruction. Four patients required urgent surgery because the sponges were causing intestinal obstruction or intraabdominal sepsis. Based on history, physical examination findings, and diagnostic imaging, RSS was diagnosed preoperatively in five of the patients. Postoperative complications, including surgical site infection and evisceration, occurred in five cases.ConclusionRSS can lead to significant medical and legal problems between the patient and the doctor. RSS may be incorrectly diagnosed preoperatively, which can lead to unnecessary invasive diagnostic procedures and operations. Strict measures must be taken to prevent this complication.


Journal of Clinical Apheresis | 2009

Preoperative therapeutic plasma exchange in patients with thyrotoxicosis

Ali Ezer; Kenan Caliskan; Alper Parlakgumus; Sedat Belli; Ilknur Kozanoglu; Sedat Yildirim

The purpose of this report was to determine the effectiveness of therapeutic plasma exchange (TPE) in preoperative preparation of patients with thyrotoxicosis scheduled for either thyroid or nonthyroid surgery. We retrospectively reviewed 11 patients with thyrotoxicosis and those who prepared surgery with plasmapheresis between 1999 and 2008 at our institution. Ten patients underwent thyroid surgery and one patient was operated for femur fracture during antithyroid drug treatment. The indications for plasmapheresis in all patients with severe thyrotoxicosis were poor response to medical treatment (seven patients), agronulocytosis due to antithyroid drugs (three patients), iodine‐induced thyrotoxicosis (Jodd Basedow effect in one patient), and rapid preparation for urgent orthopedic operation (one patient). After TPE, we observed a marked decrease in free thyroxin (FT3) and free triiodothyronin (FT4) levels; however, the decline in the biochemical values were not statically significant (P > 0.62, P > 0.15). Although both FT3 and FT4 levels remained above the normal limits in two of 11 patients, the signs and symptoms of thyrotoxicosis improved in all patients and no thyroid storm observed during the perioperative period. TPE can be considered a safe and effective alternative to prepare patients with thyrotoxicosis for surgery when drug treatment fails or is contraindicated and when emergency surgery is required. J. Clin. Apheresis, 2009.


American Journal of Surgery | 2010

Prospective randomized controlled trial comparing V–Y advancement flap with primary suture methods in pilonidal disease

Tarik Zafer Nursal; Ali Ezer; Kenan Caliskan; Nurkan Törer; Sedat Belli; Gokhan Moray

BACKGROUND An ideal treatment method for the widely prevalent pilonidal sinus disease is not yet available. The most commonly practiced technique is simple closure following resection of the effected tissue. However, high recurrence rates in some series have led to the search for other methods. One of these methods is the V-Y advancement flap (VYAF), which in theory results in the flattening of the natal cleft without tension in the suture line. METHODS In this prospective randomized controlled study, the VYAF method was compared to 2 simple primary closure techniques. In 238 patients, following resection, in the AL (all layers) group, all layers were closed with polypropylene sutures. In the SS (subcutaneous suture) group, polyglactin subcutaneous sutures were used to approximate the wound edges. Skin was closed separately in the SS group. In addition, demographic variables, past history, physical examination findings, defect dimensions, and wound tension were recorded. RESULTS Surgical site infection was observed in 23.9%, 17.4%, and 10.2% of the patients in AL, SS, and VYAF groups, respectively (P = .129). Early wound dehiscence without infection was detected in 11.9%, 7.4%, and 10.2% of the patients in groups AL, SS, and VYAF, respectively (P = .665). Mean follow-up was 29.7 +/- 15.6 months. Survival (time without recurrence) was not significantly different between groups (P = .648). In the whole group, independent predictors of recurrence according to logistic regression analysis were younger age, recurrent disease, presence of discharge on physical examination, and development of postoperative surgical site infection. CONCLUSIONS VYAF is not superior to simple primary closure techniques in terms of postoperative complications, recurrence, and patient satisfaction. For most cases, simple primary closure would suffice. Patients should be informed of the increased risk of recurrence if any of the independent predictors (being a recurrent case, presence of discharge, development of postoperative infection) are present.


Acta Chirurgica Belgica | 2005

Brachial artery pseudoaneurysm: a rare complication after haemodialysis therapy.

Sedat Yildirim; T. Zafer Nursal; Tulin Yildirim; A. Tarim; Kenan Caliskan

Abstract Haemodialysis patients carry a high risk of pseudoaneurysm due to inadvertent puncture of the brachial artery during venous cannulation for haemodialysis. Signs and symptoms are pulsatile mass and a systolic murmur. Complications are rupture, infection, haemorrhage, distal arterial insufficiency, venous thrombosis and neuropathy. Early diagnosis is essential to plan adequate treatment. Doppler US and angiography usually confirm the lesion accurately. Ultrasound guided compression, percutaneous injection of thrombin, endovascular covered stent exclusion, aneurysmectomy and surgical repair are different treatment options. We report clinical and radiological findings and treatment strategies in four dialysed patients who developed brachial artery pseudoaneurysms.


Surgical Laparoscopy Endoscopy & Percutaneous Techniques | 2004

Laparoscopic repair of bilateral morgagni hernia.

A. Tarim; Tarik Zafer Nursal; Sedat Yildirim; Ali Ezer; Kenan Caliskan; Nurkan Törer

Morgagni hernias are rare and comprise approximately 3% of the congenital diaphragmatic hernias that are observed in 1 in 4800 live births. A 50-year-old female patient who complained of nonspecific chest pain radiating to the right arm for approximately 1 year presented. Chest x-ray revealed a right-sided paracardiac mass diagnosed Morgagni hernia by computerized tomography of the thorax. Laparoscopic exploration showed that the retrosternal hernia was actually a bilateral one. After reducing the contents of the hernial sacs, the defects were closed as a single defect with hernia stapler starting from each end and an appropriate sized polyprolene mesh was closed over the repair site. The patient did not have any symptoms of recurrence after 3 months. Recent advances in video-endoscopic surgery made it possible to perform repairs of these hernias less traumatic and more comfortable to the patients than the conventional transabdominal or transthoracic methods.


Iranian Red Crescent Medical Journal | 2014

UNUSUAL FINDINGS IN APPENDECTOMY SPECIMENS OF ADULTS: RETROSPECTIVE ANALYSES OF 1466 PATIENTS AND A REVIEW OF LITERATURE

Hakan Yabanoglu; Kenan Caliskan; Huseyin Ozgur Aytac; Emin Turk; Erdal Karagulle; Fazilet Kayaselcuk; Mehmet Akin Tarim

Background: Diseases and tumors of the appendix vermiformis are very rare, except acute appendicitis. Objectives: This retrospective study was conducted to document the unusual findings in appendectomy specimens. Patients and Methods: Data of 1466 adult patients were gathered retrospectively. Appendectomy was performed in 1169 and in 297 patients following a diagnosis of acute appendicitis and during other abdominal operations, respectively. The data of 57 (3.88 %) patients who were pathologically reported to have unusual appendix findings were retrospectively collected. The records were analyzed according to patients’ age, gender, clinical presentations, operative reports, pathological reports and follow up. Results: Unusual pathologic examination findings were detected in the appendectomy specimens of 57 patients with a mean age of 48.34 ± 19. Twenty-nine patients (50.8 %) were male and 28 (49.2 %) were female. Normal appendix tissues were observed in specimens of 26 (45.6 %) patients and inflamed appendix in 31 (54.3 %). The most common unusual finding was parasitic diseases of the intestine. Pathological diagnosis of malignancy and benign features were reported in specimens of 14 and 43 patients, respectively. Macroscopic evaluation of appendectomy specimens during surgery might result in negligence of the presence of unusual pathology. Conclusions: Even if the macroscopic appearance of the specimen is normal or acute appendicitis, we suggest routine histopathological examination.


Acta Chirurgica Belgica | 2010

The Effect of the Psychological Status of Breast Cancer Patients on the Short- term Clinical Outcome after Mastectomy

Nurkan Törer; Tarik Zafer Nursal; Kenan Caliskan; Ali Ezer; Tamer Colakoglu; Gokhan Moray; Mehmet Haberal

Abstract Purpose: to analyze the effect of anxiety and depression on the postoperative complications and length of hospitalization of patients with breast cancer. Beck’s Depression Inventory (BDI) and Hospital Anxiety and Depression Scale (HADS) were filled out by the patients pre-operatively. Patients were asked to rate their pain by the visual analogue scale (VAS) after surgery. Age, seroma volume, day of drain withdrawal, complications, and pathological stages were noted. The median age of 49 patients with the diagnosis of breast cancer was 51 (36–80). There was a significant correlation between the pain score and Beck, HADS, HADS (anxiety) and HADS (depression) (8 hours; p = 0.021, 0.001, 0.004, 0.005 and 24 hours; p = 0.005, 0.012, 0.006, 0.120). The mean HADS depression score in those patients with complications was 9.1 ± 4.2 and that of patients with no complications was 6.6 ± 3.1 (p = 0.047). The mean hospital stay of patients with a normal HADS score (< 19) was 2.9 ± 1.1 days, whilst that of patients with an abnormal HADS score was 3.8 ± 1.2 days (p = 0.016). Patients with abnormal HADS anxiety and abnormal HADS (total) scores had an earlier stage of breast cancer (p = 0.077, p = 0.063). The psychological status of breast cancer patients effects their postoperative recovery period and it is easy to diagnose these patients by some brief questionnaires.


International Surgery | 2015

The Effect of the Use of Synthetic Mesh Soaked in Antibiotic Solution on the Rate of Graft Infection in Ventral Hernias: A Prospective Randomized Study.

Hakan Yabanoglu; İlker Murat Arer; Kenan Caliskan

Wound infections and seroma formations are important problems in ventral hernia repair operations using synthetic mesh grafts. The aim of this study was to investigate the effect of the use of synthetic mesh soaked in vancomycin solution on the rate of graft infection. The total number of subjects was 52. The subjects were randomized into 2 groups using a software program. Group 1 (n = 26) was the control group. In group 2 (n = 26), synthetic mesh was soaked in a Vancomycin solution before it was implanted. The patients were compared with respect to demographic characteristics and preoperative, intraoperative, and postoperative variables. There were no significant differences between the groups with respect to the available variables. Seroma development was significantly more common in group 2 (P < 0.041). Three patients (5.7%) developed superficial wound infection, and 9 (17%) developed surgical site infection 2-type wound-site infection. No significant difference was found between the groups in terms of infection. The use of synthetic mesh soaked in vancomycin solution had no beneficial effects on the rate of wound-site infection. Future randomized, controlled, large-scale studies using the same mesh and suture types, and meshes soaked in larger spectrum antibiotics are needed.


Diseases of The Colon & Rectum | 2011

Effects of a tissue sealing-cutting device versus monopolar electrocautery on early pilonidal wound healing: a prospective randomized controlled trial.

Alper Parlakgumus; Ali Ezer; Kenan Caliskan; Servet Emeksiz; Jale Karakaya; Tamer Colakoglu; Sedat Belli; Sedat Yildirim

BACKGROUND: Monopolar electrocauterization produces thermal effects on neighboring tissues, causing tissue damage. Recently, tissue sealing-cutting devices, which are easy to use and achieve simultaneous selective sealing and cutting with less production of heat, have been used. OBJECTIVE: The aim of this study was to investigate the effects of a tissue sealing-cutting device vs monopolar electrocautery on wound healing in the early postoperative period after pilonidal sinus surgery. DESIGN: This study was a prospective randomized clinical trial. SETTING: This study was conducted at Military Hospital, Eskisehir, Turkey. PATIENTS: In total, 128 patients with chronic pilonidal disease were randomly assigned into 2 clinically comparable groups between December 2009 and June 2010. INTERVENTION: Pilonidal sinus excision was performed with monopolar electrocautery in the control group (n = 64) and with a tissue sealing-cutting device in the study group (n = 64). Data regarding wound healing, demographic variables, history, physical examination findings, defect dimensions, and scores for a visual analog scale were recorded. MAIN OUTCOME MEASURES: The main outcomes measured were surgical site infection, early wound failure (dehiscence), and unhealed wound rate. RESULTS: Wound infection and dehiscence rates were significantly lower (P = .01 and .02), but the duration of surgery was significantly longer (P < .01) in the tissue sealing-cutting group. The unhealed wound rate was 12.5% in the electrocautery group and 4.7% in the tissue sealing-cutting group (P = .01). When the distance from the lowest margin to the anus was 5 cm or less, wound infection and dehiscence rates were lower in the tissue sealing-cutting group (P < .01 and .03). LIMITATIONS: We could not obtain data regarding the cost-effectiveness of the instruments. CONCLUSIONS: A tissue sealing-cutting device in pilonidal sinus surgery yields better wound healing than monopolar electrocautery.


Transplantation Proceedings | 2002

Gastrointestinal complications requiring surgical management in renal transplant recipients

H. Karakayali; Gokhan Moray; Kenan Caliskan; O. Basaran; Mehmet Haberal

HE incidence of gastrointestinal (GI) complications in renal transplant recipients is relatively high compared with that of the normal population. Even a minor GI complication in immunosuppressed individuals may become severe, leading to graft loss or even patient death. Reports in the literature note an increased risk for a wide range of GI disorders during the post-transplantation period. 1 Although most of the problems may be managed with appropriate medical treatment, some require surgery. The aim of this study was to retrospectively analyze the GI complications that require surgery in immunosuppressed patients post-transplantation. MATERIALS AND METHODS

Collaboration


Dive into the Kenan Caliskan's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge