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Featured researches published by Alpay Aribas.


Heart Lung and Circulation | 2014

Prognostic Value of Neutrophil to Lymphocyte Ratio in Patients with Acute Pulmonary Embolism: A Restrospective Study

Mehmet Kayrak; Halil İbrahim Erdoğan; Yalcin Solak; Hakan Akilli; Enes Elvin Gul; Oğuzhan Yıldırım; Murat Erer; Nezire Belgin Akıllı; Taha Tahir Bekçi; Alpay Aribas; Mehmet Yazici

BACKGROUND Acute pulmonary embolism (PE) is a serious clinical condition characterised by a high mortality rate. Previous studies showed that leukocytosis was associated with recurrences of venous thromboemboli, major bleeding and increased mortality. The aim of the present study was to investigate the prognostic value of neutrophil to lymphocyte ratio (NLR) in patients with acute PE during short term follow-up. METHOD A total of 640 patients were screened by I26 code of ICD-9 and 359 patients were included as cases of confirmed acute PE. Admission blood counts and clinical data were obtained from medical charts. The predictors of 30-day mortality were examined. RESULTS Fifty-one out of 359 patients (14.2%) included in the study died during 30 days follow-up. In multivariate Cox regression analysis systolic blood pressure (HR:0.97 (0.94-0.99 CI95%), p=0.019), diabetes mellitus (HR:3.3 (1.30-8.39 CI95%), p=0.012), CK-MB(HR:1.03 (1.01-1.06 CI95%), p=0.024) and NLR (HR:1.03 (1.01-1.06 CI95%), p=0.008) were predictors of 30-day mortality. An optimal cut-off value of NLR was determined as 9.2 by using ROC curve. Hazards ratio of NLR>9.2 was found to be 3.60 (1.44-9.18 CI95%, p=0.006). NLR>9.2 had a sensitivity, specificity, negative predictive value, and positive predictive value of 68.6%, 80.5%, 93.9% and 36.5%, respectively. CONCLUSION NLR on hospital admission may be a predictor of 30-day mortality in acute PE. Since complete blood count is a part of the routine laboratory investigation in the most hospitalised patients use and preliminary promising results of this study, NLR should be investigated in future prospective randomised trials regarding prognostic value in acute PE.


The Journal of Sexual Medicine | 2014

Uric acid level and erectile dysfunction in patients with coronary artery disease.

Yalcin Solak; Hakan Akilli; Mehmet Kayrak; Alpay Aribas; Abduzhappar Gaipov; Suleyman Turk; Santos E. Perez-Pozo; Adrian Covic; Kim McFann; Richard J. Johnson; Mehmet Kanbay

INTRODUCTION Erectile dysfunction (ED) is a frequent complaint of elderly subjects and is closely associated with endothelial dysfunction and cardiovascular disease (CVD). Uric acid is also associated with endothelial dysfunction, oxidative stress, and CVD, raising the hypothesis that an increased serum uric acid might predict ED in patients who are at risk for coronary artery disease (CAD). AIM This study aims to evaluate the association of serum uric acid levels with presence and severity of ED in patients presenting with chest pain of presumed cardiac origin. METHODS This is a cross-sectional study of 312 adult male patients with suspected CAD who underwent exercise stress test (EST) for workup of chest pain and completed a sexual health inventory for men survey form to determine the presence and severity of ED. Routine serum biochemistry (and uric acid levels) were measured. Logistic regression analysis was used to assess risk factors for ED. MAIN OUTCOME MEASURES The short version of the International Index of Erectile Function questionnaire diagnosed ED (cutoff score ≤ 21). Serum uric acid levels were determined. Patients with chest pain of suspected cardiac origin underwent an EST. RESULTS One hundred forty-nine of 312 (47.7%) male subjects had ED by survey criteria. Patients with ED were older and had more frequent CAD, hypertension, diabetes and impaired renal function, and also had significantly higher levels of uric acid, fibrinogen, glucose, C-reactive protein, triglycerides compared with patients without ED. Uric acid levels were associated with ED by univariate analysis (odds ratio = 1.36, P = 0.002); however, this association was not observed in multivariate analysis adjusted for estimated glomerular filtration rate. CONCLUSION Subjects presenting with chest pain of presumed cardiac origin are more likely to have ED if they have elevated uric acid levels.


Journal of Critical Care | 2013

Assessment of right ventricular functions in patients with sepsis, severe sepsis and septic shock and its prognostic importance: A tissue Doppler study

Atif Harmankaya; Hakan Akilli; Mehmet Gul; Nazire Belgin Akilli; Mehmet Ergin; Alpay Aribas; Basar Cander

PURPOSE This study aims to investigate the potential contributions of the right ventricle (RV) performance evaluated using tissue Doppler imaging (TDI) on the assessment of the severity and prognosis of sepsis. METHODS The study was completed with 55 patients (male/female 26/29, age 66.9 ± 20.3 years) and 28 healthy controls (male/female 14/14, age 59.4 ± 18.3 years). The RV-TDI parameters, mainly the RV myocardial peak systolic velocities (Sm, cm/s) and myocardial performance index (MPI) were recorded, in addition to the standard echocardiographic evaluation. RESULTS The patients were classified into 3 groups based on the severity of sepsis. The RV-Sm value was significantly lower in the severe sepsis-septic shock (n = 31) than that of the sepsis (n = 24) and the control groups (n = 28) (P = .001). The RV-MPI was high both in the severe sepsis-septic shock and the sepsis compared with the control group (P = .02). The patients were classified into 3 groups based on in-hospital mortality. The RV-Sm was lower in non-surviving (n = 27) than in the surviving (n = 28) and the control groups (n = 28) (P = .002). The RV-MPI was found to be higher in the non-surviving patients than the surviving and the control groups (P < .001). CONCLUSION Our study shows that the RV dysfunction evaluated using TDI, particularly the RV-Sm and MPI values, were related with the severity of sepsis and mortality.


Blood Pressure | 2014

The relationship between uric acid and erectile dysfunction in hypertensive subjects

Alpay Aribas; Mehmet Kayrak; Seref Ulucan; Ahmet Keser; Kenan Demir; Hayrudin Alibasic; Hakan Akilli; Yalcin Solak; Ahmet Avci; Yasar Turan; Zeynettin Kaya; Hüseyin Katlandur; Mehmet Kanbay

Abstract Background. Endothelial dysfunction plays a major role in erectile dysfunction (ED). Uric acid (UA) is a marker of endothelial dysfunction. We hypothesized that increased UA levels may be associated with ED and aimed to investigate whether there is a relationship between, UA and ED in hypertensive patients. Methods. A total of 200 hypertensive patients who have a normal treadmill exercise test were divided into two groups based on the Sexual Health Inventory for Men (SHIM) test (< 21 defined as ED n = 110, and ≥ 21 defined as normal erectile function n = 90). The differences between the ED and normal erectile function groups were compared and determinants of ED were analyzed. Main results. The prevalence of ED was found to be 55.0%. Office blood pressure level was comparable between groups. UA levels were significantly increased in the ED group (6.20 ± 1.56 vs 5.44 ± 1.32, p = 0.01). In a regression model, age [odds ratio (95% confidence interval): 1.08 (1.04–1.14), p = 0.001], smoking [odds ratio: 2.33 (1.04–5.20), p = 0.04] and UA [odds ratio: 1.76 (1.28–2.41), p = 0.04] were independent determinants of ED. An UA level of > 5.2 mg/dl had 76.2% sensitivity, 43.7% specificity, 62.9% positive and 59.4% negative predictive value for determining ED. Conclusion. UA is an independent determinant of ED irrespective of blood pressure control and questioning erectile function for hypertensive patients with increased UA levels may be recommended.


Journal of Clinical Laboratory Analysis | 2013

Serum and Saliva Levels of Ischemia-Modified Albumin in Patients with Acute Myocardial Infarction

Aysun Toker; Alpay Aribas; F. Hümeyra Yerlikaya; Erkan Tasyurek; Kürşat Akbuğa

Ischemia‐modified albumin (IMA) is a novel marker for diagnosis of myocardial ischemia and it is considered as a serum marker. The aim of the study was to evaluate salivary IMA levels in patients with acute myocardial infarction (AMI) and to determine the relation between serum and salivary IMA levels.


The Anatolian journal of cardiology | 2012

Can neutrophil/lymphocyte ratio predict recurrence of non-valvular atrial fibrillation after cardioversion?

Alpay Aribas; Hakan Akilli; Enes Elvin Gul; Mehmet Kayrak; Kenan Demir; Cetin Duman; Hajrudin Alibasiç; Mehmet Yazici; Kurtulus Ozdemir; Hasan Gök

OBJECTIVE High neutrophil/lymphocyte ratio (NLR) has been associated with post-operative AF development in patients who underwent cardiac surgery. In this study, effectiveness of NLR for prediction of recurrence after electrical cardioversion (CV) in non-valvular AF was investigated. METHODS A total of 149 patients who underwent a successful CV were included in this prospective cohort study. Baseline complete blood cell count, routine biochemical tests, high sensitive C-reactive protein (hs-CRP), and echocardiographic measurements were examined. After CV, patients were monitored over six months for recurrence. Baseline characteristics of recurrence group were compared with sinus rhythm group by using Student`s t -test. Logistic regression analysis was used to determine predictors of recurrence. RESULTS Recurrence occurred in a total of 46 patients (30.9%). Median AF duration [16 (IQR:14.25) vs. 12 (IQR:11) months, p=0.01], baseline hs-CRP [9.80 (IQR: 8.50) mg/dL vs. 4.28 (IQR: 5.65) mg/dL, p=0.002] and left atrium (LA) diameter (4.5±0.4 cm, 4.3±0.5 cm, p=0.023) were significantly higher in the recurrence group than sinus rhythm group. Median NLR was comparable in recurrence and sinus groups [2.38 (IQR: 2.09) vs. 2.23, (IQR: 1.23) p=0.96, respectively]. There was a weak correlation between NLR and hs-CRP (r=0.22, p=0.05) and age (r=0.24, p=0.02). In multiple logistic regression analysis, hs-CRP [OR: 1.34 (1.09-1.65 95% CI) p=0.006], LA diameter [OR: 11.92 (1.84-77.07 95% CI) p=0.01], spontaneous echo contrast positivity, [OR: 5.40 (1.04-12.02 95% CI) p=0.045] and systolic blood pressure [OR: 1.05 (1.01-1.10 95% CI) p=0.03] were independent predictors of AF recurrence. CONCLUSION NLR failed to predict AF recurrence after a successful electrical CV, but hs-CRP remained an inflammatory marker of AF recurrence.


Medical Principles and Practice | 2011

Atorvastatin given prior to electrical cardioversion does not affect the recurrence of atrial fibrillation in patients with persistent atrial fibrillation who are on antiarrhythmic therapy.

Kenan Demir; Ilknur Can; Fatih Koc; Mehmet Akif Vatankulu; Selim Ayhan; Hakan Akilli; Alpay Aribas; Yusuf Izzettin Alihanoglu; Bülent Behlül Altunkeser

Objective: In this study, our aim was to evaluate the effect of a higher dose of atorvastatin on the recurrence rate of atrial fibrillation (AF) after electrical cardioversion (EC) in addition to antiarrhythmic therapy. Subjects and Methods: 48 patients with persistent AF were included in this study. The patients were randomized to an atorvastatin 40-mg treatment group and a control group. Atorvastatin was started 3 weeks before EC and was continued for 2 months after EC. EC was performed using biphasic shocks after 3 weeks of treatment with the orally administered anticoagulant warfarin. Lipid and inflammatory parameters (high-sensitivity C-reactive protein, white blood cell count and fibrinogen level) were evaluated at the baseline and before EC. The endpoint of this study was electrocardiographically confirmed recurrence of AF of >10 min. Results: There were no significant differences in baseline characteristics and lipid and inflammatory marker levels between the treatment and control groups. Total cholesterol and low-density lipoprotein levels were significantly decreased in patients taking atorvastatin for 2 months compared with baseline values (174 ± 31 vs. 129 ± 25 mg/dl, p = 0.001, and 112 ± 23 vs. 62 ± 20 mg/dl, p = 0.001, respectively), while no significant change occurred in control patients (168 ± 26 vs. 182 ± 29 mg/dl, p = 0.07, and 99 ± 18 vs. 108 ± 26 mg/dl, p = 0.1, respectively). At the end of the 2-month follow-up period, 9 patients (20.5%) experienced AF recurrence, and there was no significant difference in AF recurrence rate between the treatment and control groups (26 vs. 13%; p = 0.2). Conclusion: Atorvastatin therapy prior to EC does not prevent the recurrence of arrhythmia in patients with persistent AF who are receiving antiarrhythmic therapy.


Pacing and Clinical Electrophysiology | 2013

Self-Reported Sleep Quality of Patients with Atrial Fibrillation and the Effects of Cardioversion on Sleep Quality

Mehmet Kayrak; Enes Elvin Gul; Alpay Aribas; Hakan Akilli; Hajrudin Alibasiç; Turyan Abdulhalikov; Oğuzhan Yıldırım; Mehmet Yazici; Kurtulus Ozdemir

Atrial fibrillation (AF) is the most common sustained cardiac rhythm disturbance encountered in clinical practice and is associated with impaired quality of life. Data from the previous studies have shown that sleep quality (SQ), as a component of life quality, may also deteriorate in patients with AF. However, it remains unclear; we do not know whether SQ improves after sinus rhythm is maintained. Therefore, we aimed to examine the relationship between SQ and AF, as well as the effects of sinus rhythm restoration with direct current cardioversion (DCC) on SQ among patients with persistent AF.


Hemodialysis International | 2013

Coenzyme Q10 supplementation and diastolic heart functions in hemodialysis patients: A randomized double-blind placebo-controlled trial

Suleyman Turk; Aysegul Baki; Yalcin Solak; Mehmet Kayrak; Huseyin Atalay; Abduzhappar Gaipov; Alpay Aribas; Hakan Akilli; Zeynep Biyik; Nilsel Okudan; Hakkı Gökbel

Coenzyme Q10 (CoQ10) supplementation has been shown to improve diastolic heart function in various patient cohorts. Systolic and diastolic dysfunctions are common in patients with end‐stage renal disease. Favorable effects of CoQ10 on cardiac functions are yet to be seen in hemodialysis patients. We aimed to evaluate effect of CoQ10 supplementation on diastolic function in a cohort of maintenance hemodialysis patients. This was a prospective, double‐blind, placebo‐controlled, crossover study in which all patients received placebo and oral CoQ10 200 mg/d during the 8 weeks in each phase, with a 4‐week washout period. Participants underwent conventional and tissue Doppler echocardiography before and after each study phase. Parameters characterizing left ventricle diastolic function and other standard echocardiographic measurements were recorded. Twenty‐eight patients were randomized, but 22 patients completed study protocol. Intraventricular septum (IVS) thickness and left ventricle mass were significantly decreased in CoQ10 group (P = 0.03 and P = 0.01, respectively). Myocardial peak systolic and early diastolic velocities derived from IVS were significantly increased (P = 0.048 and P = 0.04, respectively). Isovolumetric relaxation time and E/Em ratio calculated for IVS also significantly reduced in CoQ10 group (p = 0.02 and p = 0.04, respectively). There was no significant difference in any of the studied echocardiographic parameters in placebo group. The results of this study showed that CoQ10 supplementation did not significantly improved diastolic heart functions compared with placebo in maintenance hemodialysis patients.


Anatolian Journal of Cardiology | 2013

Management of right heart thrombi associated with acute pulmonary embolism: a retrospective, single-center experience

Hakan Akilli; Enes Elvin Gul; Alpay Aribas; Kurtulus Ozdemir; Mehmet Kayrak; Halil İbrahim Erdoğan

OBJECTIVE The mortality of right heart thrombi (RHT) associated with pulmonary embolism (PE) is increased about three to four times. The most devastating scenario is fragmentation of RHT and occurrence of recurrent PE. The reports regarding the management of RHT complicated with PE are very scarce in the current literature. Therefore, we report a single-center experience in this paper. METHODS From January 2006 to December 2011, data of all patients diagnosed with acute PE were analyzed retrospectively. Of the 312 acute PE cases confirmed with computed tomography, total 35 patients who were diagnosed with concomitant RHT (prevalence of 11%) by echocardiography were recruited. After excluding of six patients with metastatic malignancy a total 29 patients were accepted eligible for the analysis. In addition, catheter -induced thrombus (type B) were not included to the study. The difference between categorical variables was analyzed with Chi-square test and continuous variables were analyzed with Mann-Whitney U test. A p value of <0.05 was considered statistically significant. RESULTS Overall mortality was high (34%) in study population: among undergoing surgery-100%, therapy with thrombolytics -18%, and heparin -27%. Troponin levels were found significantly higher in died patients than that in survived patients (p=0.03). There was no significant difference regarding to clinical and echocardiographic characteristics of patients received heparin versus thrombolytic except for shock index (p=0.02). In addition, patients treated with heparin had increased duration of hospitalization compared to subjects treated with thrombolytic (median: 8 vs 3 days p<0.01). CONCLUSION Despite of the low incidence of RHT, a mortal course is still an important problem during PE. The decision on treatment modality should be performed based on the hemodynamic parameters, laboratory findings, and bleeding risk of the patients.

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