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Anterior Segment Changes during Accommodation in Accommodative Esotropia
Mustafa Koç,Hakan Halit Yaşar,Mehmet Murat Uzel,Salih Çolak,Irfan Durukan,Pelin Yılmazbaş 대한안과학회 2018 Korean Journal of Ophthalmology Vol.32 No.1
To evaluate the anterior segment biometric parameters of non-accommodative and accommodativerefractive accommodative esotropia (RAE). Methods: Eighty-one eyes of 81 patients were included in this prospective, case-control study. The patientswere divided into three groups as follows: the RAE group (n = 31), the hypermetropia group (n = 25), and theemmetropia group (n = 25). Measurements were obtained in the non-accommodative (0.0 diopters) and accommodativestatus (-5.0 diopters) using a Pentacam HR. The anterior chamber depth (ACD), anterior chambervolume (ACV), pupil diameter (PD), and anterior chamber angle (ACA) were evaluated at all four quadrants. Results: The ACD, ACV and PD values in the RAE group were lower than those of the other groups in bothstates (p < 0.05). The ACD values were lower in the hypermetropia group than in the emmetropia group for thenon-accommodative status (p = 0.024) but were similar for the accommodative status (p = 0.225). PD and ACVvalues were lower in the hypermetropia group than in the emmetropia group in both states (non-accommodativestatus, p = 0.011 and p = 0.022; accommodative status, p = 0.026 and p = 0.034, respectively). Changes inACD, ACV and PD during accommodation (Δ) were not significant in the RAE group but were significant for theother groups (hypermetropia: ΔACD, p = 0.001; ΔACV, p = 0.001; ΔPD, p = 0.002; emmetropia: ΔACD, p < 0.001;ΔACV, p = 0.001; ΔPD, p < 0.001). These changes were significantly lower in the hypermetropia group than inthe emmetropia group (ΔACD, p = 0.012; ΔACV, p = 0.031; ΔPD, p = 0.034). Conclusions: The anterior chamber in RAE patients was shallower and the increase in convexity of the anteriorsurface or forward movement of the crystalline lens was more limited during accommodation in RAE.
Serum Inflammatory Biomarkers in Patients with Nonarteritic Anterior Ischemic Optic Neuropathy
Nurullah Koç,ak,Bilge Eraydın,Mustafa Turunç,,Volkan Yeter,İ,nci Gü,ngö,r 대한안과학회 2020 Korean Journal of Ophthalmology Vol.34 No.6
Purpose: To evaluate the neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyteratio (PLR), and systemic immune-inflammation index (SII) in patients with non-arteritic anterior ischemic optic neuropathy(NAION). Methods: Fifty-six patients with NAION and 60 age-sex matched healthy controls were included in the study. Demographiccharacteristics and laboratory findings of the patients and the controls were obtained from the electronic medical records. NLR, PLR, MLR, and SII were calculated and compared between the groups. Cutoff values were also determined. Results: Neutrophil, monocyte and platelet counts were higher in the NAION group than in the control group, but the differencewas not statistically significant (p > 0.05). The mean NLR and SII were higher in the NAION group than in the controlgroup (p = 0.004 and p = 0.011, respectively). In the receiver operating characteristic curve analysis, the areas under thecurve for NLR were 0.67, and NLR >1.79 predicted NAION with a sensitivity of 71% and specificity of 59%. The areas under thecurve for SII was 0.66, and SII of >417 predicted NAION with a sensitivity of 71% and specificity of 49%. There was no significantdifference in PLR and MLR between the groups (p = 0.105 and p = 0.347, respectively). Conclusions: The current study demonstrated that NAION patients had increased NLR and SII levels compared with controlsubjects. Elevated NLR and SII might serve as readily available inflammatory predictors in NAION patients.
M. Mustafa Önal,Bas¸ak Zengin,Ali Koçak,Bilge Doran 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.7
In in many earthquake-prone regions and countries including Mediterranean area, India, the Middle East, Southeast Asia, existing buildings with its structural elements such as Reinforced Concrete (RC) beams and columns, which show little ductility, have consistently exhibited poor performance during past earthquakes and consequently unavoidable earthquake damages on these structures led to a significant loss of world cultural heritage. Therefore, appropriate strengthening techniques have to be implemented in order to improve load carrying capacities and overall ductility. This paper summarizes experimental investigations of damaged and undamaged RC beams. In this context, twenty-seven beams were tested under combined bending and shear. Eighteen RC beams were damaged and then strengthened with four different methods while nine were kept undamaged. The behavior of damaged and undamaged RC beams is discussed with emphasis on the load deflection and strain characteristics. The results indicate that the specimens strengthened with full jacketing had slightly higher load carrying capacity than the reference beams strengthened with other techniques. The experimental results can also be used for understanding the most convenient strengthened technique for damaged beams.
Çelik Hale Kefeli,Tulgar Serkan,Bük Ömer Faruk,Koç Kadem,Ünal Murat,Genç Caner,Süren Mustafa 대한마취통증의학회 2024 Korean Journal of Anesthesiology Vol.77 No.2
Background: Open inguinal hernia repair (OIHR) surgery is a common surgical procedure, and ultrasound guided interfascial plane blocks can also be included in current approaches to postoperative multimodal analgesia regimens. This study aimed to compare the postoperative analgesic efficacy of the erector spinae plane block (ESPB) and transversalis fascia plane block (TFPB) in patients undergoing OIHR.Methods: This prospective, randomized, assessor-blinded comparative study was conducted in the postoperative recovery room and ward of a tertiary hospital. A total of 80 patients with American Society of Anesthesiologists physical status I–III were enrolled and allocated equally to either the ESPB or TFPB group. The patients received standard multimodal analgesia in addition to an ultrasound-guided ESPB or TFPB. During the first 24 h postoperatively, tramadol consumption was assessed and pain levels at rest and during movement were compared using numeric rating scale (NRS) scores at 1, 3, 6, 9, 12, 18, and 24 h postoperatively.Results: The results showed no difference in NRS scores at any time point between the groups, except for NRS at rest in the third hour. However, tramadol consumption was lower in the TFPB group than in the ESPB group overall (88 ± 75.2 vs. 131 ± 93.7 mg, respectively; P = 0.027, mean difference: −43, 95% CI [−80.82, −5.18]).Conclusions: The TFPB leads to lower tramadol requirements in the first 24 h postoperatively than the ESPB in patients undergoing OIHR.