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17
result(s) for
"Mayir, Burhan"
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Colonoscopy findings in patients who have positive fecal occult blood test for colorectal cancer screening
by
Mayir,Burhan
,
Durhan,Abdullah
,
Ensari,Cemal Özben
in
Blood tests
,
Colonoscopy
,
Colorectal cancer
2018
Aim: To determine the rate of colonoscopies performed in patients referred for colonoscopy due to positive fecal occult blood test in colorectal cancer
screening, and the rates of cancer, polyps, and other colorectal diseases detected in those who underwent colonoscopy.
Method: Colonoscopy results of the patients were recorded prospectively.
Results: Of the 300 consecutive patients scheduled for colonoscopy, only 127 (42.3%) underwent the procedure. Normal colonoscopy findings were
seen in 47 (37%) of the patients. Forty patients (31.5%) had benign polyps, 24 (18.9%) had diverticulosis, and 40 (31.5%) had hemorrhoids or anal
fissures. One patient (0.8%) had mild dysplasia and one patient (0.8%) had malignant polyp in histopathologic examination of polypectomy specimen.
Conclusion: The colonoscopy rate and the rate of detection of malignancy were very low in patients who had positive fecal occult blood test in
the present study. Informing patients about the need for colonoscopy and encouraging them to have colonoscopy will be helpful for the success of
colorectal screening programs.
Journal Article
The Effect of Ultrasound-Guided Erector Spinae Plane Block on Postoperative Opioid Consumption and Respiratory Recovery in Laparoscopic Sleeve Gastrectomy: A Randomized Controlled Study
by
Karaveli, Arzu
,
Kaplan, Serdar
,
Kosar, Mehmet Nuri
in
Adult
,
Analgesics, Opioid - administration & dosage
,
Analgesics, Opioid - therapeutic use
2025
Background
The aim of this prospective, randomized, controlled study was to evaluate the effect of ultrasound (US)-guided bilateral erector spinae plane (ESP) block on postoperative opioid consumption and respiratory recovery in patients with obesity undergoing laparoscopic sleeve gastrectomy (LSG).
Methods
The study was conducted on 40 patients scheduled for LSG. The patients were randomly allocated into either the ESP block group or the control group. The US-guided bilateral ESP block was performed preoperatively. The control group received no intervention.
Results
Postoperative median [IQR] tramadol consumption was significantly lower in the ESP block group [150.0 [100–200] mg vs 450.0 [400–500] mg,
p
< 0.0001]. Postoperative spirometric variables were significantly impaired in both groups, compared with preoperative variables (
p
< 0.0001). Intraoperative median [IQR] fentanyl consumption was 200.0 [200–200] µg in the ESP block group, and 350.0 [300–400] µg in the control group (
p
< 0.0001). Postoperative mean pain scores at rest and during movement were significantly lower in the ESP block group, at all time points (
p
< 0.05). In terms of mean arterial PH, Horowitz ratio, and PaCO
2
, there was no statistically significant difference between the groups (
p
> 0.05). None of the patients experienced postoperative respiratory adverse events and/or block-related complications.
Conclusions
US-guided bilateral ESP block significantly reduced both intraoperative and postoperative analgesic consumptions and provided effective postoperative pain control for patients with obesity undergoing bariatric surgery. Following bariatric surgery, all patients’ postoperative pulmonary functions deteriorated. The effect of US-guided bilateral ESP block on postoperative respiratory recovery could not be clearly demonstrated. Randomized controlled studies with a larger patient population are necessary.
Journal Article
Efficacy of Methylene Blue in Sentinel Lymph Node Biopsy for Early Breast Cancer
2014
Objective:Sentinel lymph node biopsy is the recommended approach in the evaluation of axilla during breast cancer surgery. In this study, results of patients who underwent methylene blue sentinel lymph node biopsy were evaluated.Materials and Methods:The study included 32 female patients with T1 and T2 tumors. 5 ml of 1% methylene blue was injected into the peritumoral area or around the cavity. The axillary sentinel lymph node was found and removed, and then axillary dissection was performed. The sentinel lymph node and axillary dissection specimen were histopathologically examined and the results were compared.Results:The sentinel lymph node was found in 30 (94%) patients. Lymph node metastasis was not observed in 17 patients in both the sentinel lymph node and axilla. Two patients had metastasis in the axilla although this was not detected in sentinel lymph node. Eleven patients had metastasis both in the sentinel lymph node and in the axilla . The accuracy rate was 93%, and the false negativity rate was identified as 15%.Conclusion:Sentinel lymph node biopsy by methylene blue is a method that can be applied with high accuracy. Methylene blue can be considered as an alternative to isosulphane blue in sentinel lymph node biopsy.
Journal Article
Carcinosarcoma of the Breast: Case Report
by
Tuna Bilecik
,
Mayir, Burhan
,
Ensari, Cemal Özben
in
breast cancer
,
carcinosarcoma
,
metaplastic cancer
2014
Carcinosarcoma of the breast represents less than 1% of primary breast mailgnancies. Both malign epithelial and malign mesenchymal elements exist together in the breast. A 59 year old postmenopausal women presents with a bloody nipple discharge and mass in breast. In left breast 2x1 cm mss detected and excisied. At pathological examination breast carcinosarcoma was detec-ted. Then modified radical mastectomy was performed. Tumor measured 4x4x3.5 cm. Tumor cells were negative for estrogen, progesteron. C-erb-B2 was negative. There was no metastasis in axillary lymph node metastasis. Carcinosarcoma of breast is rare tumor. It mass be consider in diagnosis of patients with large breast mass.
Journal Article
The potential effects of Ankaferd blood stopper and fibrin sealent on sleeve gastrectomy staple-line healing: An experimental study
2019
Staple-line bleeding and leakage is a life-threatening complication in obese patients following laparoscopic sleeve gastrectomy. The aim of this study was to examine the potential effects of Ankaferd blood stopper (ABS) and Fibrin Sealant (FS; Tisseel®) on sleeve gastrectomy staple-line healing in an experimental animal model. A total of 30 Wistar albino female rats were divided into three groups and were subjected to sleeve gastrectomy with linear stapling. Group A (control group) had nothing administered, Group B was administered FS on the staple-line, and Group C was administered ABS on the staple-line following sleeve gastrectomy. After sacrifice on postoperative day 5, anastomotic burst pressure, tissue hydroxyproline levels and histopathological parameters were measured. The results revealed that group C had the highest mean bursting pressure level. However, the values of this parameter were not found to differ significantly between the groups (P>0.05). Group B and C had a similar hydroxyproline levels but increased compared with group A (P<0.001). Histopathological parameters were similar between the groups, except macrophage scores in group C. In the present experimental study, ABS was demonstrated to improve gastric-sleeved staple-line healing compared with FS. ABS may be used as a novel reinforcement agent in bariatric surgery.
Journal Article
Laparoscopic appendectomy with hand-made loop
2014
Acute appendicitis is the most common abdominal pathology requiring emergent surgical procedure. For treatment, laparoscopic surgery is commonly performed. For appendix stump closure different procedures are used.
Evaluation of the results of patients in whom the stump of the appendix was closed with a hand-made loop during laparoscopic appendectomy (LA).
Patients in whom the stump of the appendix was closed with a hand-made loop during LA were included in the study. Reports of patients were collected from patient files retrospectively. Laparoscopic appendectomy was applied through 3 ports. Two loops were placed in the stump of the appendix. Loop was a modification of the Roeder loop that has been described in the literature and has been shown to be safe.
Sixty-one patients were included in the study. Twenty-four of them (39%) were female, 37 of them (61%) were male. The age range is from 13 to 60 (average age is 30) years. During the postoperative period, one surgical wound infection and two intraabdominal abscesses were detected. There was no leakage from the stump of the appendix in any patients.
One of the most important components of cost of LA is the technique of closure of the stump. Stapler, endoloop, various clips or a hand-made loop could be used for closure. We recommend using a hand-made loop for closure as an easy, safe and cheap method.
Journal Article
Protective effects of amifostine on ischemia-reperfusion injury of rat kidneys
by
Erdogan, Okan
,
Colak, Taner
,
Mayir, Burhan
in
Amifostine
,
Amifostine - administration & dosage
,
Amifostine - therapeutic use
2015
Amifostine is a drug which can eliminate free oxygen radicals that appear in the body after radiation or chemotherapeutic agent exposure. It is used to decrease the renal toxicity of cisplatin. The aim of this study was to determine the role of amifostine in warm ischemia kidney model for prevention of ischemia/reperfusion injury and also to find out the mechanism for prevention from ischemia/reperfusion injury if such an effect does exist.
Adult female rats (n = 40) that used in our study were divided into three groups. Group 1: Control (n = 8), group 2: Ischemia-control (n = 16), group 3: Amifostine treated (n = 16). The effect of amifostine on ischemia/reperfusion injury investigated in rat kidneys.
At the 7(th) day, blood urea nitrogen level was statistically significantly higher in ischemia-control group than all groups (P = 0.001) and mean serum creatinine levels were found to be the highest in ischemia-control group (P = 0.091). Mean malondialdehyde levels in left kidneys removed on the 7(th) day were not significantly different (P = 0.105) at all three groups. Between ischemia-control group and amifostine group, there was a significant difference in reduced glutathione (GSH) levels (P = 0.001). In amifostine group, grade 4 necrosis was not detected neither on 7(th) day nor day 0.
Amifostine could decrease the degree and severity of necrosis after reperfusion. Amifostine could not prevent membrane lipid peroxidation caused by superoxide anion radicals in kidney but they could protect tissues from the harmful effects of ischemia/reperfusion injury by increasing the level of reduced GSH which is a well-known oxygen radical eliminator.
Journal Article
Analysis of the publishing rate and the number of citations of general surgery dissertations
2017
Objective: A dissertation is a scientific document. However, if it is not published in a scientific journal, it will gain access to only a limited audience and thus will be unable to achieve its objective. Nevertheless, the rate of publishing in journals is not high among dissertations. In this study, we aimed to investigate the publishing rates of general surgery dissertations in journals and the total number of citations. Material and Methods: All medical dissertations that have been prepared at general surgery departments of university hospitals and presented between the years 2006 and 2008 were analyzed. The authors checked whether the dissertations were published in a journal or not, by searching the dissertation in 4 different resources with the name of their authors. Results: Two hundred and thirty-two dissertations were included. Half of those dissertations were experimental animal studies. Seventy dissertations were published in various journals. Fifty one (22%) of these were published in Science Citation Index Expanded journals, while 19 (8.1%) of them were published in Turkish non-Science Citation Index Expanded journals. There was no significant difference in terms of publishing rates between study types. The number of annual citations per article was 1.1. The writer of the dissertation was the first author in 35 (68,6%) articles. Conclusion: The publishing rates of dissertations in general surgery is low, with only 22% being published in Science Citation Index Expanded journals. The citation rate was also detected to be low in our study. Consequently, a dissertation should be considered as a scientific research study and planned as such, not as obligatory assignments. The publishing rates of dissertations should be increased, and authors should be led and encouraged to publish their dissertations.
Journal Article