Karabela Y.,Medipol University |
Muftuoglu O.,Vehbi Koc Vakf Amerikan Hospital |
Kaya F.,Medipol University
Clinical Ophthalmology | Year: 2017
Purpose: This study aimed to evaluate the accuracy and consistency of corneal flap thickness in laser-assisted in situ keratomileusis (LASIK) with the Moria M2 single-use head 90 microkeratome. Methods: The central corneal thickness of 72 (37 right, 35 left) eyes of 37 patients was measured by ultrasonic pachymetry preoperatively and intraoperatively after flap cut. The Moria M2 single-use head 90 microkeratome was used to create a superior hinged flap in all eyes. The right eyes were always operated on before the left eyes in each patient, using the same blade in all bilateral cases. All patients underwent LASIK for myopia and/or myopic astigmatism using VISX Star S4 platform. Results: The mean preoperative spherical equivalent refraction was -3.55±2.30 D (range: -0.625 to -11.00 D), preoperative central corneal thickness by ultrasonic pachymetry was 541±26.82 µm (490–600 µm) and steepest K was 44.08±1.49 D (40–46.75 D) in all eyes. The mean flap thickness was 136.97±20.07 µm (106–192 µm), 131.2±19.5 µm (91–192 µm), and 134.16±19.85 µm (91–192 µm) in the right, left, and both eyes, respectively. A positive significant relationship was found between flap thickness and preoperative ultrasonic pachymetry thickness. No significant relationship was found between flap thickness and the age, preoperative spherical equivalent, and preoperative steepest K. The difference between the first and second eyes was not significant. There were no major intraoperative and postoperative complications in all eyes. Conclusion: The Moria M2 single-use head 90 microkeratome cut relatively thicker flaps than were intended. The flap thickness range was quite wide. This was a disadvantage for the accuracy and consistency of corneal flap thickness. © 2017 Karabela et al.
News Article | May 22, 2017
Ankara Yildirim Beyazit University | Auria Biobank | Bayer Pharma | BioKryo GmbH | Biostor Ireland | BWB | Cambridge Blood and Stem Cell Biobank | European Commission | European Sperm Bank | Ghent University | Institute Of Child Health | Istanbul Medipol University | Karadeniz Technical University | King Abdullah International Medical Research Center | LifelinesNL | Merck Research Laboratories | National Institute for Biological Standards and Control | Nottingham University Hospital NHS Trust | Scientist.com | Thermo Fisher Scientific | Ugent | UK Biocentre | University of Nottingham The preliminary attendee list is available to read in event website's download centre. Opening with a keynote address on regulatory considerations by the European Commission, the two day agenda will cover topics in key areas surrounding ethics, data management, biomedical research, human specimen acquisition and sample quality. Further information including a detailed agenda and full speaker line-up is available at www.bio-banking-event.com For all media inquiries contact Teri Arri on Tel: +44 (0)20 7827 6162 / Email: firstname.lastname@example.org Established since 1993, the SMi Group is a global event-production company that specializes in Business-to-Business Conferences, Workshops, Masterclasses and online Communities. We create and deliver events in the Defence, Security, Energy, Utilities, Finance and Pharmaceutical industries. We pride ourselves on having access to the world's most forward thinking opinion leaders and visionaries, allowing us to bring our communities together to Learn, Engage, Share and Network. More information can be found at http://www.smi-online.co.uk To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/attendee-list-released-for-biobanking-2017-300461235.html
Oguz Ahmet S.,Medipol University |
Mutluay M.M.,Medipol University |
Seyfioglu Polat Z.,Medipol University |
Seseogullari Dirihan R.,Medipol University |
And 2 more authors.
Acta odontologica Scandinavica | Year: 2014
OBJECTIVE: The clinical survival rates of the adhesive restorations are limited due to the deterioration of resin-dentin bonds over time, partly due to the endogenous enzymatic activity of dentin. Recently, benzalkonium chloride (BAC) has been shown to effectively inhibit endogenous protease activity of dentin. This study evaluated the effect of different concentrations of benzalkonium chloride (BAC) on the degree of conversion (DC), vickers hardness (VH), setting time (ST) and biaxial flexural strength (FS) of two self-adhesive resin luting cements (RC).METHODS: Two RC SpeedCEM (Ivoclar-Vivadent) and BisCem (Bisco) were modified by addition of 0.1, 0.5, 1, 1.5, 2 wt% BAC. The luting cements without the addition of BAC served as control. The DC (FT-IR/ATR from the bottom of the resin disc), vickers hardness (from top and bottom of the light-cured specimen), setting time (ISO 4049) and biaxial flexural strength (0.6 × 6 mm discs) of the specimens were tested. Data were analyzed using ANOVA and Tukeys HSD.RESULTS: DC results were in the range of 70-80%, with some significant changes in BisCem (p < 0.05). VH values of both materials increased significantly compared to control, with no significant change as the BAC percentage increases. BAC addition influenced the ST differently for both materials. For BisCem, a gradual decrease (p < 0.05) was observed whereas, for SpeedCEM, a gradual increase was observed until 1% BAC (p < 0.05). For FS values, a gradual decrease was observed for both materials with increased amounts of BAC (p < 0.05), compared to the control group.CONCLUSIONS: BAC addition of up to 1% seems to be acceptable considering the properties tested. Clinical significance. Incorporation of benzalkonium chloride to self-adhesive resin luting cements during the mixing procedure does not significantly affect the degree of conversion or flexural strength of the luting agent and may be a good option to improve the durability of adhesive interface.
Atalay F.O.,Uludag University |
Ozgun G.,Medipol University |
Tolunay S.,Uludag University |
Bekar A.,Uludag University
Journal of Nippon Medical School | Year: 2014
Intracranial chondroma is a rare benign neoplasm that occurs most often at the skull base. In extremely rare instances, it arises from the dura mater of the convexity or from the falx cerebri. The tumor cells are thought to originate from meningeal fibroblasts, perivascular mesenchymal tissue, or ectopic chondrocytes. Because the clinical presentation of such cases is nonspecific and because neuroimaging findings are not pathognomonic, intracranial chondromas mimic other intracranial tumors. Herein, we report a chondroma originating from the dura mater in the frontal region. The patient had been followed-up radiologically for 3 years after a preliminary diagnosis of meningioma until the correct diagnosis of chondroma was established with postoperative histological examination.
Muftuoglu O.,Medipol University |
Ayar O.,Kudret Eye Hospital |
Ozulken K.,Kudret Eye Hospital |
Ozyol E.,Unye Devlet Hastanesi |
Akinci A.,Kudret Eye Hospital
Journal of Cataract and Refractive Surgery | Year: 2013
Purpose: To evaluate posterior corneal elevation and back difference corneal elevation in patients with keratoconus in 1 eye and forme fruste keratoconus in the fellow eye. Setting: Kudret Eye Hospital, Ankara, Turkey. Design: Case-control study. Methods: This study retrospectively reviewed patients with keratoconus in 1 eye and forme fruste keratoconus in the fellow eye and eyes of normal subjects. All subjects were evaluated with a rotating Scheimpflug imaging system (Pentacam), including sagittal and tangential anterior curve analysis, keratometry, and posterior elevation. The back difference elevation values were extrapolated from the difference maps of the Belin-Ambrosió enhanced ectasia display of the Scheimpflug system. The receiver operating characteristic (ROC) curves were analyzed to evaluate the sensitivity and specificity of the parameters. Results: The corneal power, pachymetric progression index, and posterior corneal elevation (posterior elevation and back difference elevation) measurements were statistically significantly higher in eyes with keratoconus or forme fruste keratoconus than in eyes of normal control subjects (P<.05). Using ROC analysis, the area under the curve values of mean keratometry, steepest point on the tangential curve, minimum corneal thickness, pachymetric progression index, Ambrósio's relational thickness, posterior elevation, and back difference elevation to distinguish forme fruste keratoconus from control subjects were 0.51, 0.84, 0.65, 0.81, 0.72, 0.68, and 0.76, respectively. Conclusions: Back difference elevation was better than posterior elevation in diagnosing forme fruste keratoconus. However, as sole parameters, both had limited sensitivity and specificity to differentiate between forme fruste keratoconus eyes and normal control eyes. Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned. © 2013 ASCRS and ESCRS Published by Elsevier Inc.
Muftuoglu O.,Istanbul University |
Ayar O.,Bülent Ecevit University |
Hurmeric V.,Dunya Eye Hospital |
Orucoglu F.,Medipol University |
Kilic I.,Istanbul Egitim Arastirma Hastanesi
Journal of Cataract and Refractive Surgery | Year: 2015
Purpose To compare the multimetric D index and other keratoconus-screening parameters in patients with clinical keratoconus in 1 eye and subclinical keratoconus in the fellow eye. Setting Medipol University Hospital and Birinci Eye Hospital, Istanbul, Turkey. Design Retrospective case-control study. Methods Patients with clinical keratoconus in 1 eye and subclinical keratoconus in the fellow eye and eyes of normal subjects were evaluated with a rotating Scheimpflug imaging system (Pentacam). Parameters included anterior curve analysis, keratometry (K) values, minimum corneal thickness, pachymetric progression index, Ambrósio relational thickness, posterior elevation, back difference elevation, and D-index values. The receiver operating characteristic (ROC) curves were analyzed to evaluate the area under curve (AUC), sensitivity, and specificity of each parameter. Results Forty-five patients and 67 normal subjects were evaluated. The pachymetric progression indices, posterior elevation, and the D-index measurements were statistically significantly higher whereas corneal thickness and Ambrósio relational thickness measurements were significantly lower in eyes with keratoconus or subclinical keratoconus than in eyes of normal subjects (P <.05). Using the ROC analysis, the AUC values of the mean steep K, minimum corneal thickness, pachymetric progression index minimum, Ambrósio relational thickness maximum, posterior elevation, back difference elevation, and D index to distinguish between subclinical keratoconus from control subjects were 0.52, 0.64, 0.71, 0.72, 0.71, 0.76, and 0.83, respectively. Conclusion The new multimetric D index seems to be better than other single-metric parameters in diagnosing keratoconus and subclinical keratoconus with good specificity. However, the sensitivity levels of all parameters were relatively limited in the diagnosis of subclinical keratoconus. Financial Disclosure No author has a financial or proprietary interest in any material or method mentioned. © 2015 ASCRS and ESCRS.
PubMed | Ondokuz Mayis University, Samsun Training and Research Hospital and Medipol University
Type: Journal Article | Journal: Journal of orthopaedic surgery (Hong Kong) | Year: 2016
To compare the 6-week and 6-month outcome in 60 patients who received a single-dose injection of platelet-rich plasma (PRP) or steroid for subacromial impingement syndrome (SIS).22 men and 38 women (mean age, 49.7 years) opted to receive a single-dose injection of PRP (n=30) or steroid (n=30) for SIS that had not responded to conservative treatment for >3 months. The PRP or a mixture of 1 ml 40 mg methylprednisolone and 8 ml prilocaine was administered via a dorsolateral approach through the interval just beneath the dorsal acromial edge. Both groups were instructed to perform standard rotator cuff stretching and strengthening exercises for 6 weeks. The use of non-steroid anti-inflammatory drugs was prohibited. Patients were evaluated before and 6 weeks and 6 months after treatment using the Constant score, visual analogue scale (VAS) for pain, and range of motion (ROM) of the shoulder.No local or systemic complication occurred. Improvement in the Constant score and VAS for pain at week 6 and month 6 was significantly better following steroid than PRP injection. The difference in the Constant score was greater than the mean clinically important difference of 10.4. Nonetheless, the 2 groups were comparable for improvement in ROM of the shoulder.Steroid injection was more effective than PRP injection for treatment of SIS in terms of the Constant score and VAS for pain at 6 weeks and 6 months.
PubMed | Istanbul University, Bilim University and Medipol University
Type: Journal Article | Journal: Paediatrics and international child health | Year: 2016
Periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis (PFAPA) syndrome is a common disorder in children but there is little or no consensus on its optimal diagnosis and management.To compare the outcome of different management approaches - medical therapy or tonsillectomy.The medical records of children diagnosed with PFAPA between 2008 and 2013 were retrospectively reviewed according to the modified Thomas test criteria. Patients were divided into two groups: group 1 for medical treatment - corticosteroids, a single intramuscular injection of methylprednisolone, and group 2 for surgery - tonsillectomy alone or tonsillectomy plus adenoidectomy .The course of the disease including the number and duration of episodes and the presence of remission, was documented.105 patients (30 in group 1, 75 in group 2) met the studys inclusion criteria. Groups 1 and 2 were followed up for a mean (SD) of 23.6 (11.0) and 24 (10.3) months, respectively. At the end of the follow-up period, the number of episodes was 5.8 (6.3) vs 1.8 (1.9) (P<0.01) and their duration was 2.2 (1.3) vs 1.1 (0.8) days (P=0.03), both of which were significantly lower in group 2.The need for hospitalization during this period was significantly lower for group 2 at 1.1 (2.0) vs 0.1 (0.3) (P<0.01) and the remission rate in group 2 was significantly higher than in group 1 (98.6% vs 56.6%, P<0.01).This study demonstrated that surgery is superior to medical treatment for PFAPA in terms of increased remission rates and a decrease in the number and duration of episodes.
PubMed | Bagclar Teaching Hospital, Yedikule Teaching Hospital for Chest Diseases and Thoracic Surgery and Medipol University
Type: | Journal: Archivos de bronconeumologia | Year: 2016
Chronic obstructive pulmonary disease (COPD) increases the risk of cardiovascular disease (CVD). Red blood cell distribution width (RDW) is accepted as a powerful predictor of outcomes in patients with CVD.To study RDW in patients with COPD, and to compare the value of this measurement with clinical, echocardiographic, nutritional and laboratory status. Secondly, we aimed to determine the effect of smoking on RDW values in healthy subjects.One hundred and seventy-five patients with stable COPD and 210 healthy controls were enrolled in the study. Demographic, clinical, nutritional status, echocardiographic, and laboratory characteristics, RDW values were recorded and compared.RDW values were higher in the COPD group than in controls (152.3% vs. 13.82.5%, p<0.001). In COPD patients, RDW levels positively correlated with CRP levels (r=0.27, P<.001), albumin levels (r=0.23, P=.04), right ventricular dysfunction (RVD) (r=0.24, P=.001), pulmonary hypertension (PAH) (r=0.1, P=.02), and presence of CVD (r=0.24, P=.02). In multivariable logistic regression suggested that presence of CVD (4.3; 95% CI: 1.3 to 11; P=.01), and presence of RVD (3.1; 95% CI: 1.7 to 8.3; P=.02) were independently related to elevated RDW levels in COPD patients. In the healthy population, correlations analysis showed only a significant correlation between RDW and cigarette smoking years (r=0.57, P<.001).RDW is independently associated with CVD and RVD in patients with COPD. In the healthy population, RDW is also associated with smoking status.
PubMed | Hospital Universitario Maternal Zekai Tahir Burak, Ankara University, Hospital Universitario Investigacion En Ginecologia Etlik Zubeyde Hanim and Medipol University
Type: Journal Article | Journal: Archivos argentinos de pediatria | Year: 2015
In our clinical practice, we observed high interleukin-6 (IL-6) levels in gram-negative sepsis.To investigate the relationship between IL-6 and C-reactive protein (CRP) levels and early determination of neonatal sepsis of gram-negative or gram-positive aetiology.White blood cell count, IL-6 and CRP levels were compared among different groups.Gram-negative, gram-positive and fungal infection groups consisted of 73, 82 and 15 patients, respectively. The optimal cut-off levels of IL-6 between gram-negative and gram-positive fungal infection groups were 202 and 57 pg/ml. The fungal infection group had higher CRP levels than gram-negative and positive infection groups.To our knowledge, this is the largest reported study aiming at determining of IL-6 cut-off levels to differentiate neonatal sepsis aetiology. Gram-negative microorganisms led to 10 fold higher IL-6 production. The evaluation of IL-6 and CRP is useful to diagnose and also differentiate neonatal sepsis aetiology.