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Dive into the research topics where Ayhan Hilmi Cekin is active.

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Featured researches published by Ayhan Hilmi Cekin.


International Journal of Medical Sciences | 2013

The Role of Serum Procalcitonin Levels in Predicting Ascitic Fluid Infection in Hospitalized Cirrhotic and Non-cirrhotic Patients

Yesim Cekin; Ayhan Hilmi Cekin; Adil Duman; Ustun Yılmaz; Bayram Yeşil; Basak Oguz Yolcular

Objective: To determine the role of serum procalcitonin levels in predicting ascites infection in hospitalized cirrhotic and non-cirrhotic patients. Methods: A total of 101 patients (mean age: 63.4±1.3, 66.3% were males) hospitalized due to cirrhosis (n=88) or malignancy related (n=13) ascites were included in this study. Spontaneous bacterial peritonitis (SBP, 19.8%), culture-negative SBP (38.6%), bacterascites (4.9%), sterile ascites (23.8%) and malign ascites (12.9%) groups were compared in terms of procalcitonin levels in predicting ascites infection. Receiver operating characteristic (ROC) curves were used to evaluate the diagnostic performance of procalcitonin levels and predicting outcome of procalcitonin levels was compared with C-reactive protein (CRP). Results: Culture positivity was determined in 26.7% of overall population. Serum procalcitonin levels were determined to be significantly higher in patients with positive bacterial culture in ascitic fluid compared to patients without culture positivity (median (min-max): 4.1 (0.2-36.4) vs. 0.4 (0.04-15.8), p<0.001). Using ROC analysis, a serum procalcitonin level of <0.61 ng/mL in SBP (area under curve (AUC): 0.981, CI 95%: 0.000-1.000, p<0.001), <0.225 ng/mL in culture-negative SBP (AUC: 0.743, CI 95%: 0.619-0.867, p<0.001), <0.42 ng/mL in SBP and culture-negative SBP patients (AUC: 0.824, CI 95%: 0.732-0.916, p<0.001), and <1.12 ng/mL in bacterascites (AUC: 0.837, CI 95%: 0.000-1.000, p=0.019) were determined to accurately rule out the diagnosis of bacterial peritonitis. Predictive power of serum procalcitonin levels in SBP + culture-negative SBP group (AUCs: 0.824 vs 0.622, p=0.004, Fig 4), culture-positive SBP (AUCs: 0.981 vs 0.777, p=0.006, Fig 5) and (although less powerfull) in culture-negative SBP (AUCs: 0.743 vs 0.543, p=0.02, Fig 6) were found significantly higher than CRP. Conclusion: According to our findings determination of serum procalcitonin levels seems to provide satisfactory diagnostic accuracy in differentiating bacterial infections in hospitalized patients with liver cirrhosis related ascites.


The American Journal of Gastroenterology | 2002

Gastroesophageal reflux disease in chronic renal failure patients with upper GI symptoms: multivariate analysis of pathogenetic factors.

Ayhan Hilmi Cekin; Sedat Boyacioglu; Murat Gursoy; Banu Bilezikçi; Gürden Gür; Ebru Akin; Nurhan Ozdemir; Ugur Yilmaz

OBJECTIVE:The association between gastroesophageal reflux disease and end-stage renal disease remains unclear. We aimed to assess the prevalence of gastroesophageal reflux disease and also to identify possible pathogenetic factors in the development of reflux in symptomatic end-stage renal disease patients.METHODS:The study involved 42 end-stage renal disease patients with upper GI symptoms (group I) and 46 age- and sex-matched controls who did not have renal disease but had the same symptoms (group II). Endoscopy, endoscopic biopsies, and 24-h esophageal pH studies were used to diagnose gastroesophageal reflux disease. Subjects were also investigated for Helicobacter pylori gastritis and GI amyloidosis.RESULTS:The prevalences of gastroesophageal reflux disease in the two groups were similar (81% vs 84.8%, p = 0.423). The prevalence of H. pylori infection was significantly lower in group I than in group II (38.1% vs 67.4%, p = 0.01). There were 11 cases of GI amyloidosis in group I. Multivariate logistic regression analysis in group I showed that GI amyloidosis (OR = 7.28, 95% CI = 1.13–46.93), chronic ambulatory peritoneal dialysis treatment (OR = 5.54, 95% CI = 1.01–30.43), and absence of H. pylori infection (OR = 3.75, 95% CI = 1.01–13.9) were significantly associated with reflux esophagitis.CONCLUSIONS:Upper GI symptoms are important in predicting gastroesophageal reflux disease in end-stage renal disease patients. Chronic ambulatory peritoneal dialysis, GI amyloidosis, and absence of H. pylori infection seem to be risk factors for the development of gastroesophageal reflux disease in end-stage renal disease patients.


Experimental Diabetes Research | 2016

Assessment of the Relationship between Diabetic Retinopathy and Nailfold Capillaries in Type 2 Diabetics with a Noninvasive Method: Nailfold Videocapillaroscopy

Seyit Uyar; Ayşe Balkarlı; Muhammet Kazım Erol; Bayram Yeşil; Abdullah Tokuç; Doğan Durmaz; Suheyla Gorar; Ayhan Hilmi Cekin

Background and Objectives. Nailfold capillaroscopy is an easy and noninvasive technique used to investigate dermal microvasculature. Traditional investigations of vascularity do not detect changes until they are well-established in type 2 diabetics. The objective of the current study was to evaluate nailfold capillaries in type 2 diabetes mellitus patients and to determine the association of retinopathy with changes in the nailfold capillaries. Materials and Methods. Capillaroscopic findings by nailfold capillaroscopy and fundoscopic examinations were assessed in 216 patients with type 2 diabetes mellitus and 101 healthy controls included in this prospective study. Results. Retinopathy was detected in 43.05% of diabetic patients (n = 93). Capillaroscopic findings including tortuosity (p < 0.001), bushy capillary (p < 0.001), neoformation (p < 0.001), bizarre capillary (p < 0.001), microhemorrhage (p = 0.001), capillary ectasia (p = 0.002), and aneurysm (p = 0.004) were significantly higher in diabetic group than control group. In logistic regression analysis, only tortuosity was shown significant (OR, 2.16; p = 0.036). There was also a significant relation between diabetes duration and most of the capillaroscopic findings. Conclusion. Capillaroscopic changes were found to be correlated with diabetic retinopathy, in particular with longer disease duration in our study. Capillaroscopic imaging could be a useful new technique for assessment of diabetic microvascular changes.


Gastroenterology Research and Practice | 2012

The Role of Helicobacter pylori and NSAIDs in the Pathogenesis of Uncomplicated Duodenal Ulcer

Ayhan Hilmi Cekin; Muharrem Taskoparan; Adil Duman; Cem Sezer; Yesim Cekin; Basak Oguz Yolcular; Hasan Can; Fatma Seher Pehlivan; Mine Cayirci

Background/Aim. To identify the etiological role of Helicobacter pylori (Hp) and nonsteroidal anti-inflammatory drugs (NSAIDs) in endoscopically diagnosed duodenal ulcers (DUs). Methods. Patients undergoing esophagogastroduodenoscopy in two major hospitals in Antalya and Adiyaman were included in this study and assigned as duodenal ulcer (n = 152; median age: 41.0 (16–71) years; 58.6% males) or control group (n = 70; median age: 41.0 (18–68) years; 57.1% males). Patient demographics, risk factors, and NSAID/acetylsalicylic acid (ASA) use were recorded. Results. HP was more commonly located in the corpus (75.0 versus 50.0%; odds ratio [OR] = 3.00; 95% confidence interval [CI]: 1.66–5.44; P < 0.001), incisura (75.7 versus 60.0%; OR = 2.07; 95% CI: 1.13–3.79; P = 0.017), and antrum (80.3 versus 60.0%; OR = 2.71; 95% CI: 1.45–5.05; P = 0.001) among DU patients than controls. Hp positivity was 84.9% while Hp was negative in 15.1% of patients including those accompanied with NSAID and/or ASA use (9.2%), and those were negative for all three etiological factors (5.9%). Conclusion. Our findings indicate the substantial role of Hp in the pathogenesis of DU disease as identified in 84.9% of DU patients compatible with the background prevalence of 61.4% among age-matched control subjects. Hp was the single causative factor in 44.1% of our patients, while NSAID/ASA exposure was in 9.2%.


The Turkish journal of gastroenterology | 2017

Use of probiotics as an adjuvant to sequential H. pylori eradication therapy: impact on eradication rates, treatment resistance, treatment-related side effects, and patient compliance

Ayhan Hilmi Cekin; Yasin Sahinturk; Ferda Akbay Harmandar; Seyit Uyar; Basak Oguz Yolcular; Yesim Cekin

BACKGROUND/AIMS To evaluate the effect of probiotics administered as an adjuvant to sequential Helicobacter pylori (H. pylori) eradication therapy on treatment outcome and patient compliance. MATERIALS AND METHODS In total, 159 patients with H. pylori infection receiving sequential H. pylori eradication therapy were included in this randomized placebo-controlled study. Starting from day 0 of sequential eradication therapy (ERA), patients in the ERA+probiotic group [n=53, mean (SD) age: 47.7 (14.0) years, 54.7% were females] also received a probiotic supplement with Bifidobacterium animalis subsp. lactis B94 (1 capsule/day), patients in the ERA+placebo group [n=52, mean (SD) age: 46.4 (13.4) years, 51.9% were males] received placebo treatment (1 capsule/day), and patients in the ERA-only group [n=54, mean (SD) age: 46.3 (11.9) years, 55.6% were females] received no additional treatments. Eradication rates, patient compliance, and side effects of eradication therapy were recorded in each treatment group. RESULTS Significantly higher eradication rates were noted in the ERA+probiotic group (86.8% vs. 70.8%, p=0.025) than in the combined ERA (ERA-only and ERA-placebo) group. Non-compliance with anti-H. pylori treatment was noted in 24 (15.1%) of 159 patients. Lower rates of first week treatment non-compliance due to diarrhea (1.88% vs. 12.26%, p=0.036) were noted in the ERA+probiotic group than in the combined ERA (ERA-only and ERA-placebo) group. Treatment resistance (p: 0.389) was similar between the groups, indicating pure antibiotic resistance without any compliance problems. The number needed to treat for an additional beneficial outcome (NNTB) was 6.2 (CI 95%, 3.5 to 28.9) for probiotic use. CONCLUSION In conclusion, adjuvant administration of probiotic (B. animalis subsp. lactis) in 2-week sequential H. pylori eradication therapy is associated with a higher H. pylori eradication rate, lower first week diarrhea-related treatment discontinuation rates, less common self-reported side effects, and higher treatment compliance.


Korean Circulation Journal | 2016

Assessment of Aortic Elasticity in Patients with Celiac Disease

Nermin Bayar; Ayhan Hilmi Cekin; Şakir Arslan; Göksel Çağırcı; Selçuk Küçükseymen; Serkan Cay; Ferda Akbay Harmandar; Bayram Yeşil

Background and Objectives Celiac disease (CD) is a chronic autoimmune disorder induced by dietary gluten intake by individuals who are genetically sensitive. Many studies report an increased risk of cardiovascular diseases in such patients. The aim of this study is to assess aortic elasticity properties in patients with CD that may be associated with an increased risk of cardiovascular disease. Subjects and Methods Eighty-one patients diagnosed with CD by antibody test and biopsy and 63 healthy volunteers were included in this prospective study. Electrocardiographic and echocardiographic examinations were performed. Results The CD group did not have any differences in the conventional echocardiographic parameters compared to the healthy individuals. However, patients in the CD group had an increased aortic stiffness beta index (4.3±2.3 vs. 3.6±1.6, p=0.010), increased pressure strain elastic modulus (33.6±17.0 kPa vs. 28.5±16.7 kPa, p=0.037), decreased aortic distensibility (7.0±3.0×10-6 cm2/dyn vs. 8.2±3.6×10-6 cm2/dyn, p=0.037), and similar aortic strain (17.9±7.7 vs. 16.0±5.5, p=0.070) compared to the control group. Patients with CD were found to have an elevated neutrophil/lymphocyte ratio compared to the control group (2.54±0.63 vs. 2.24±0.63, p=0.012). However, gluten-free diet and neutrophil/lymphocyte ratio were not found to be associated with aortic elasticity. Conclusion Patients with CD had increased aortic stiffness and decreased aortic distensibility. Gluten-free diet enabled the patients with CD to have a reduction in the inflammatory parameters whereas the absence of a significant difference in the elastic properties of the aorta may suggest that the risk of cardiovascular disease persists in this patient group despite a gluten-free diet.


Asian Pacific Journal of Cancer Prevention | 2014

Implementation of Screening Colonoscopy amongst First-Degree Relatives of Patients with Colorectal Cancer in Turkey: a Cross-Sectional Questionnaire Based Survey

Yesim Adakan; Muharrem Taskoparan; Ayhan Hilmi Cekin; Adil Duman; Ferda Akbay Harmandar; Vildan Taskin; Ustun Yılmaz; Bayram Yeşil

OBJECTIVE To evaluate the implementation of screening colonoscopy amongst first-degree relatives (FDRs) of patients with colorectal cancer (CRC) in Turkey. MATERIALS AND METHODS A total of 400 first-degree relatives (mean(SD)age: 42.5(12.7) years, 55.5% were male) of 136 CRC patients were included in this cross-sectional questionnaire based survey. Data on demographic characteristics, relationship to patient and family history for malignancy other than the index case were evaluated in the FDRs of patients as were the data on knowledge about and characteristics related to the implementation of screening colonoscopy using a standardized questionnaire form. RESULTS The mean(SD) age at diagnosis of CRC in the index patients was 60.0(14.0) years, while mean(SD) age of first degree relatives was 42.5(12.7) years. Overall 36.3% of relatives were determined to have knowledge about colonoscopy. Physicians (66.9%) were the major source of information. Screening colonoscopy was recommended to 19.5% (n=78) of patient relatives, while 48.7% (n=38) of individuals participated in colonoscopy procedures, mostly (57.9%) one year after the index diagnosis. Screening colonoscopy revealed normal findings in 25 of 38 (65.8%) cases, while precancerous lesions were detected in 26.3% of screened individuals. In 19.0% of FDRs of patients, there was a detected risk for Lynch syndrome related cancer. CONCLUSIONS In conclusion, our findings revealed that less than 20% of FDRs of patients had received a screening colonoscopy recommendation; only 48.7% participated in the procedure with detection of precancerous lesions in 26.3%. Rise of awareness about screening colonoscopy amongst patients with CRC and first degree relatives of patients and motivation of physicians for targeted screening would improve the participation rate in screening colonoscopy by FDRs of patients with CRC in Turkey.


International Journal of Occupational Medicine and Environmental Health | 2013

The level of knowledge of, attitude toward and emphasis given to HBV and HCV infections among healthcare professionals: Data from a tertiary hospital in Turkey

Ayhan Hilmi Cekin; Yesim Cekin; Aygül Özdemir

ObjectivesTo evaluate the level of knowledge of, to investigate the attitudes toward, and to determine the emphasis given to the national prevalence of HBV/HCV infections among healthcare professionals.Materials and MethodsA total of 206 healthcare professionals (mean (SD) age: 37.0 (6.3) years; 86.9% — females) including medical laboratory technicians (N = 54) and nurses (N = 152) employed in the Antalya Training and Research Hospital, Antalya, Turkey. Laboratory (N = 53), operating room (N = 41) and in-patient clinic (N = 112) staff were included in this descriptive study. A 33-item questionnaire composed of questions related to their level of knowledge and attitudes toward HBV/HCV infections, the sources of their knowledge of HBV/HCV infections and the emphasis given to the national and global importance of the diseases was administered via a face-to-face interview method with each subject; participation was volunteer based.ResultsThe participants working in the in-patient clinic (18.0 (3.2)) had the highest mean (SD) knowledge level compared to the laboratory (16.4 (3.1), p < 0.05) and operating room (17.0 (2.8), p < 0.05) staff. The participants from the in-patient clinic (44.6%) had a more advanced level of knowledge compared to the participants working in the laboratory (27.8%, p < 0.05) and the operating room (30.0%, p < 0.05). Most of the subjects (60.7%) had education concerning HBV/HCV infections in the past. There was no significant difference between the hospital units in terms of the attitudes of healthcare workers (HCWs) toward HBV/HCV infections and the level of education concerning them.ConclusionsOur findings revealed a moderate level of knowledge in most HCWs, regardless of their exposure to risk. While the highest knowledge scores and vaccination rates were noted among the in-patient clinic staff, there was no significant difference between the hospital units in terms of the attitudes of HCWs towards a patient or a colleague with an HBV/HCV infection.


Turkish Journal of Medical Sciences | 2017

Primary Sjögren's syndrome in patients with celiac disease

Funda Erbasan; Deniz Turgut Coban; Uğur Karasu; Yesim Cekin; Bayram Yeşil; Ayhan Hilmi Cekin; Dinç Süren; Mustafa Ender Terzioğlu

BACKGROUND/AIM Many autoimmune diseases occur concomitantly with celiac disease (CD). We aimed to determine the frequency of Sjögrens syndrome (SS) in CD patients based on SS-specific serology verified by minor labial salivary biopsy. MATERIALS AND METHODS Eight-two patients with CD were included in the study. After examination for objective evidence of sicca complex, all patients were tested for serological presence of rheumatoid factor (RF) and antinuclear antibodies (ANAs) and for ANA profile. Minor labial salivary biopsy was performed for patients with positive serology and/or clinical signs of SS. RESULTS Of the patients included, 24 (29.3%) had dry eye symptoms while 20 (24.4%) had dry mouth symptoms. Dry eye was detected by Schirmer test in 10 patients (12.2%) and by ocular staining score in only 2 patients (2.4%). All samples were negative for RF while 12 (14.6%) samples were positive for ANAs. Of 82 patients with CD, the diagnosis of SS was established in only one patient (1.2%), while one patient (1.2%) was diagnosed with morphea and 4 patients (4.9%) were classified as having undifferentiated connective tissue disease. CONCLUSION The prevalence of SS in CD is low, so there is no need for serologic screening of all patients with CD for SS.


Pakistan Journal of Medical Sciences | 2017

The Frequency of Primary Sjogren’s Syndrome and Fibromyalgia in Irritable Bowel Syndrome

Funda Erbasan; Yesim Cekin; Deniz Turgut Coban; Uğur Karasu; Dinç Süren; Ayhan Hilmi Cekin

Objective: To determine the frequency of sicca complex, Sjogren’s Syndrome (SS) and Fibromyalgia (FM) in patients with Irritable Bowel Syndrome (IBS). Methods: Seventy seven IBS patients who fulfilled the Rome-III criteria were included in the study. All patients were assessed for FM according to the American College of Rheumatology (ACR) 2010 criteria. After examination for objective evidence of sicca complex by Schirmer test, TBUT and Ocular Staining Score (OSS), serological tests were performed. And the diagnosis of SS was made according to the American College of Rheumatology (ACR) classification criteria for SS – 2012. Results: Thirteen (16.9%) of IBS patients had FM. Dry eye was detected in 20(26.0%), 7(9.1%) and 29(37.7%) patients by OSS, Schirmer test and TBUT, respectively. Of 77 patients with IBS, the diagnosis of SS was established in two patients (2.6%). Conclusion: The frequency of Sjogren’s Syndrome among patients with IBS is relatively higher than the general population. All IBS patients should be questioned for dryness of the mouth and eyes, and if necessary, should be evaluated for SS.

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