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Dive into the research topics where Cihan Uras is active.

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Featured researches published by Cihan Uras.


Digestive Surgery | 1998

Laparoscopic Approach to Hepatic Hydatid Disease

Metin Ertem; Cihan Uras; Tayfun Karahasanoglu; Sabri Erguney; Kemal Alemdaroglu

Background: The aim of this paper is to present our brief experience on laparoscopic hydatid cyst surgery; we estimated the reproducibility of used techniques in conventional surgery with this relatively recent and attractive method. Methods: Fifteen cysts in 12 selected hydatid disease patients were treated laparoscopically. Cystotomy, partial cystectomy and drainage were performed in 9 patients. Omentoplasty was added to the procedure in the remaining 3 cases. Results: The mean postoperative hospital stay was 4.9 days. There was no mortality, and 1 patient developed bile leakage. Mean follow-up is 18 months. No recurrence was observed during this period. Conclusion: We suggest that laparoscopic treatment of hydatid disease is feasible in selected patients respecting the principles of open surgery and seems beneficial concerning postoperative comfort, hospital stay and return to daily activities.


Maturitas | 2001

Mammographic density increase in women receiving different hormone replacement regimens.

Cemal Tamer Erel; Gul Esen; Hakan Seyisoglu; Koray Elter; Cihan Uras; Erdogan Ertungealp; Mehmet Feridun Aksu

OBJECTIVE we investigated effects of different regimens of hormone replacement therapy (HRT) on mammographic density. METHODS ninety-five postmenopausal women, who were on different HRT regimens and completed their 4-year mammographic follow-up, were included into this retrospective and comparative study. Twenty-three of these women, who had surgical menopause, received conjugated equine estrogens (CEE) (Group I) only, 26 of them received CEE and continuous medroxyprogesterone acetate (MPA) (Group II), 21 women received CEE and cyclic MPA (Group III), and the remaining 25 women received tibolone (Group IV) therapy. Before commencing on HRT, a baseline high-resolution mammography was performed, and repeated at 6-12-month intervals during the period of 4-year follow-up. All mammographies were evaluated according to the Wolfe classification. RESULTS a diffuse increase in mammographic density was detected in five women (22%) in group I, nine women (35%) in group II, four women (19%) in group III, and two women (8%) in group IV. The increase in mammographic density was more common among women in group II than those in the other three groups. However, a statistically significant difference was found only between groups II and IV. CONCLUSIONS different HRT regimens have different effects on breast parenchymal density on mammography. Continuous combination HRT may be more commonly associated with an increase in breast density than other forms of HRT.


Surgical Laparoscopy Endoscopy & Percutaneous Techniques | 2013

What have we gained by performing robotic rectal resection? Evaluation of 64 consecutive patients who underwent laparoscopic or robotic low anterior resection for rectal adenocarcinoma.

Ilknur Erguner; Erman Aytac; Deniz Eren Boler; Banu Atalar; Bilgi Baca; Tayfun Karahasanoglu; Ismail Hamzaoglu; Cihan Uras

Background: Robotic surgery is thought to be a solution to overcome the limitations of laparoscopy in sphincter-saving resections. In this study, we present our results on patients undergoing robotic and laparoscopic low anterior resection (LAR) consecutively for rectal adenocarcinoma. Materials and Methods: Between February 2008 and June 2011, consecutive patients who underwent laparoscopic or robotic LAR by a single surgical team for rectal cancer were evaluated. The patients’ demographic, operative, postoperative short-term follow-up, and histopathologic data were analyzed. Results: Twenty-seven patients underwent robotic LAR, whereas 37 patients underwent laparoscopic LAR. The operation time of the laparoscopy group was significantly shorter than that of the robotic group (P=0.02). The complete total mesorectal excision rate was significantly higher in the robotic group (P=0.02). The overall complication rates were 11.11% and 21.62% in the robotic and laparoscopy groups, respectively (P=0.45). Conclusions: Good quality of resected specimens could be achieved with robotic LAR. Further prospective studies including long-term oncologic outcomes and costs with higher patient number are definitely needed to assess the benefits of robotic resection in rectal cancer treatment.


Maturitas | 1996

Mammographic changes in women on hormonal replacement therapy

Cemal Tamer Erel; Hakan Seyisoglu; Mehmet Levent Şentürk; Canan Akman; Gul Esen Ersavasti; Ali Benian; Cihan Uras; Ayca Altug; Erdogan Ertungealp

OBJECTIVES In the present retrospective study, we aimed to determine the frequency and the types of mammographic changes of breast parenchyma in women receiving hormone replacement therapy (HRT). We also investigated whether there was an association between mammographic changes and some clinical and hormonal characteristics of the women on HRT. METHODS One-hundred and eight women were included into the study. Of the 108 women, 19 were climacteric, four premature menopause, 50 spontaneous menopause and 35 surgical menopause. Prior to the start of HRT, an initial mammography was performed and it was repeated at 6- to 18-month intervals according to the womens status. Estrogen alone was started for 35 surgical menopause women and a combination of estrogen plus progesterone for the remaining 73 women. RESULTS Group I consisted of 96 women with no parenchymal changes or a decrease in parenchymal density on mammography, whereas group II consisted of 12 women with an increase in parenchymal density (11%) during the mean period of 24 months. Endogenous E2 levels were significantly higher in group II than in group I (52.4 +/- 42.3 pg/ml vs. 32.3 +/- 29.3 pg/ml, P < 0.05). Climacterium or types of menopause did not affect the mammographical density changes. Neither the type nor the duration of HRT had an effect on mammographic density increase. CONCLUSIONS We concluded that the endogenous E2 level might be an important role in screening the women mammographically. Long-term follow-up studies were concluded to be needed in order to evaluate the effects of HRT on mammographic changes.


Surgical Laparoscopy Endoscopy & Percutaneous Techniques | 2002

Enteroclysis-guided laparoscopic adhesiolysis in recurrent adhesive small bowel obstructions.

Salih Pekmezci; Ediz Altinli; Kaya Saribeyoglu; Sinan Çarkman; Ismail Hamzaoglu; Melih Paksoy; Cihan Uras; Ugur Korman; Feridun Sirin

The aim of this study was to point out the efficiency of enteroclysis assay in localization of intraabdominal adhesions that impede small bowel transit in patients with recurrent adhesive small bowel obstruction who underwent laparoscopic partial adhesiolysis. Between January 1998 and June 2001, 15 selected patients with recurrent adhesive small bowel obstructions were treated successfully by medical means and evaluated with enteroclysis to define the pathologic adhesive site that impeded bowel transit. If the results of enteroclysis were indicative, they underwent laparoscopic partial adhesiolysis. The mean duration of the laparoscopic procedure was 99 minutes. In one patient conversion to laparotomy occurred because of excessive adhesions, and in another patient a small bowel injury occurred and enterorrhaphy was performed laparoscopically. Mean postoperative hospital stay was 4 days. During a mean follow-up of 17.2 months (range, 6–39), there was no delayed morbidity or recurrence. Identification of the small bowel site of recurrent obstruction with enteroclysis permits limited laparoscopic adhesiolysis. This approach may be a rational alternative to not only open procedures but also complete laparoscopic adhesiolysis without enteroclysis.


The Breast | 2010

Radioguided occult lesion localization (ROLL) for non-palpable breast cancer: A comparison between day-before and same-day protocols

Fatih Aydogan; Volkan Ozben; Varol Celik; Cihan Uras; Gulgun Tahan; Ertugrul Gazioglu; Ali Cengiz; Mehmet Ferahman; Ali Cercel; Mehmet Yilmaz; Metin Halac; Hilal Unal

BACKGROUND Although radioguided occult lesion localization (ROLL) has become a widely accepted technique, the optimal time interval between the radioisotope injection and surgery has not yet been determined. AIM To delineate the effects of time from the injection of the radionuclide until surgery on the ROLL success rate in a patient population diagnosed as having non-palpable breast cancer. METHODS Between December 2004 and May 2009, 75 patients underwent ROLL procedure. The day-before protocol and same-day protocols included 50 and 25 breast cancer patients respectively. RESULTS The two study groups were comparable in terms of age, localization technique, radiological findings and the type of surgical procedures (P > 0.05). No statistically significant difference was noticed in the pathological diagnosis, cancer size and the surgical margin clearance between the two groups (P > 0.05). CONCLUSIONS Same-day injection of the radiotracer was not superior to the day-before injection in ROLL. The day-before protocol can be scheduled for the convenience of both patients and hospital staff.


Breast Care | 2008

Axillary Web Syndrome after Sentinel Node Biopsy.

Fatih Aydogan; Ahmet Korkut Belli; Semih Baghaki; Kağan Karabulut; Gulgun Tahan; Cihan Uras

Background: Axillary web syndrome (AWS) is a self-limiting cause of morbidity in the early postoperative period after axillary surgery, but it is encountered also after sentinel lymph node biopsy. The syndrome is characterized by cords of subcutaneous tissue extending from the axilla into the medial arm. Case Report: Here, we report a patient presenting with AWS several weeks after sentinel lymph node biopsy. Conclusion: AWS has been reported to be resolved spontaneously in all patients 8–16 weeks after axillary surgery, and shoulder movements improve in this period. There is no definitive treatment modality for AWS. Patients should be reassured and informed that this condition will improve even without treatment.


Breast Care | 2009

Nodular Fasciitis of the Breast Previously Misdiagnosed as Breast Carcinoma.

Volkan Ozben; Fatih Aydogan; Fatih Can Karaca; Sennur Ilvan; Cihan Uras

Background: Nodular fasciitis of the breast is a rare be-nign pathology that can mimic breast cancer clinically, radiologically, and histopathologically. Case Report: An 18-year-old female patient had first visited a physician in a different center with the complaint of a lump in her left breast. Breast examination had revealed a palpable mass located in the left upper outer quadrant. Ultrasonography had demonstrated a hypo-echoic lesion. Excisional biopsy of the lump had been performed and histopathologic examination misdiagnosed this lump as a mesenchymal tumor. The patient was then referred to our clinic for further investigations. Pathologic revision was performed and the diagnosis of nodular fasciitis of the breast was established. Conclusion: Awareness of this rare clinical entity, nodular fasciitis, in the breast eliminates the misdiagnosis of breast cancer.


Obesity Surgery | 2002

Anthropometric Measurements in Male Breast Cancer

Ediz Altinli; Emre Gorgun; Ilhan Karabicak; Cihan Uras; Hilal Unal; Tarik Akcal

Background: 1% of breast cancers occur in men.The etiology is obscure. An elevated BMI has been postulated to be a cause. Methods: All male breast cancer patients operated from January 1990 to May 2001 were retrospectively reviewed. Relation between BMI and male breast cancer was examined. Results: 43 males underwent breast surgery for breast cancer during this period. 3 patients were excluded from the study because of other risk factors for breast cancer.The average BMI of 40 patients was 26.54 kg/m2, which is mildly above the level for normal weight. Conclusions: Excessive adipose tissue may increase risk of male breast cancer.


International Scholarly Research Notices | 2012

Sentinel Lymph Node Biopsy in Pure DCIS: Is It Necessary?

Deniz Eren Boler; Neslihan Cabioglu; Umit Ince; Gul Esen; Cihan Uras

Introduction. Sentinel lymph node biopsy (SLNB) in patients with pure ductal carcinoma in situ (DCIS) has been a matter of debate due to very low rate of axillary metastases. We therefore aimed to identify factors in a single institutional series to select patients who may benefit from SLNB. Material and Methods. Patients, diagnosed with pure DCIS (n = 63) between July 2000 and March 2011, were reviewed. All the sentinel lymph nodes were examined by serial sectioning (50 μm) of the entire lymph node and H&E staining, and by cytokeratin immunostaining in suspicious cases. Results. Median age was 51 (range, 30–79). Of 63 patients, 40 cases (63.5%) with pure DCIS underwent SLN, and 2 of them had a positive SLN (5%). In both 2 cases with SLN metastases, only one sentinel lymph node was involved with tumor cells. Patients who underwent SLNB were more likely to have a tumor size >30 mm or DCIS with intermediate and high nuclear grade or a mastectomy in univariate and multivariate analyses. Conclusion. In our series, we found a slightly higher rate of SLNB positivity in patients with pure DCIS than the large series reported elsewhere. This may either be due to the meticulous examination of SLNs by serial sectioning technique or due to our patient selection criteria or both.

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