Cadaveric investigation of the spread of the thoracoabdominal nerve block using the perichondral and modified perichondral approaches

Ciftci Bahadir,Alici Haci Ahmet,Ansen Gamze,Sakul Bayram Ufuk,Tulgar Serkan 대한마취통증의학회 2022 Korean Journal of Anesthesiology Vol.75 No.4

.

Ultrasound-guided rhomboid intercostal block provides effective pain control after video-assisted thoracoscopic surgery: a brief report of three cases

Çiftçi Bahadir,Ekinci Mursel,Atalay Yunus Oktay 대한마취통증의학회 2021 Korean Journal of Anesthesiology Vol.74 No.4

.

The Relations between Enuresis in Childhood and Nocturnal Polyuria Syndrome in Adult Life

Halil Ciftci,Murat Savas,Adem Altunkol,Halil Öncel,ErcanYeni,AyhanVerit 대한배뇨장애요실금학회 2012 International Neurourology Journal Vol.16 No.1

Purpose: The aim of this study, to investigate whether there is any association between enuresis in childhood and nocturnal polyuria syndrome (NPS) in adult life. Methods: The study consisted of thirty five patients with nocturnal polyuria, and thirty five healthy people without nocturnal polyuria in adult life, were asked to assess their enuresis in childhood. Results: There was a history of enuresis in childhood in 18 (51.42%) of 35 of men with nocturnal polyuria and in 4 (11.42%) of 35 without nocturnal polyuria. Enuresis in childhood was significantly more common in men with nocturnal polyuria than without nocturnal polyuria. The difference was significant (P<0.0001). The prevalence of enuresis in the nocturnal polyuria (51.42%) was more than two-fold higher than reported prevalence in general populations. Conclusions: The results of this study suggest that the history of enuresis in childhood seems to increase the risk of having NPS in adult life. This relationship should be taken into account in the evaluation of men with complaints from NPS in adult life and the possible common pathophysiology should be considered in the treatment planning.

Can the Mean Platelet Volume Be a Risk Factor for Vasculogenic Erectile Dysfunction?

Halil Ciftci,ErcanYeni,Mehmet Demir,Ismail Yagmur,Kemal Gümüş,Hakim Celik,Murat Savas,Mehmet Gulum 대한남성과학회 2013 The World Journal of Men's Health Vol.31 No.3

Purpose: The mean platelet volume (MPV) is a marker of the platelet activity and is reported to increase in vascular diseases. We aimed to investigate the association between MPV and vasculogenic erectile dysfunction (ED). Materials and Methods: MPV and platelet (PLT) levels were measured in 50 cases of ED and 40 healthy controls. The diagnosis of vasculogenic ED was based on a detailed sexual history, physical examination, laboratory assessment, and color Doppler ultrasonography. The results are given as mean±standard deviation of the mean. Results: The mean ages of the patient and the control groups were 53.70±12.39 years (range 24∼77 years) and 53.85±9.5 years (range 30∼73 years), respectively (p=0.947). The MPV and PLT values were significantly higher in the patients with ED than those of the controls (7.49±1.4), (6.85±1.2), (262.97±68), (252.89±82) respectively, p<0.001). However, the MPV values were not statistically significantly different in the patients with severe ED according to the International Index of Erectile Function than in those with mild ED, p>0.05), and there was no correlation between MPV and either age of patients (p=0.905) or duration of ED (p=0.583). Conclusions: The platelet count and MPV was detected to be increased in patients with vasculogenic ED. This finding suggests a role for platelets in the pathogenesis of vascular complications and that the MPV would be useful in monitoring disease progression.

Effects of cholesterol and Lactobacillus acidophilus on testicular function

Gülay Çiftci,Elif Tuna 대한생식의학회 2021 Clinical and Experimental Reproductive Medicine Vol.48 No.3

Objective: In this study, the effects of Lactobacillus acidophilus on testosterone (TES), follicle-stimulating hormone (FSH), luteinizing hormone (LH), androgen-binding protein (ABP), factor-associated apoptosis (FAS), and total cholesterol (TC), as well as histopathological changes, were investigated in male rats fed a high-cholesterol diet. Methods: The study included three groups. The control (C) group was fed standard-diet for 8 weeks. The hypercholesterolemia (HC) group was fed a 2% cholesterol-diet for 8 weeks. The therapeutic group (HCL) was fed a 2% cholesterol-diet for 8 weeks and administered L. acidophilus for the last 4 weeks. FSH, TES, and FAS levels in testicular tissue were determined using an enzyme-linked immunosorbent assay (ELISA), while another sample was examined histopathologically. LH and ABP levels were determined using ELISA, and serum TC levels were assessed via an autoanalyzer. Results: In the HC group, the TC levels were significantly higher and the LH levels were lower (p<0.05) than in the C group. The ABP levels were lower (p>0.05). In the HCL group, the LH and ABP levels were higher (p>0.05) and the TC level significantly lower (p<0.05) than in the HC group. The TES and FSH levels were lower, and the FAS levels were higher, in the HC than in the C group (p<0.05). In the HCL group, levels of all 3 resembled control levels. Histologically, in the testicular tissue of the HC group, the cells in the tubular wall exhibited atrophy, vacuolization, and reduced wall structure integrity. However, in the HCL group, these deteriorations were largely reversed.Conclusion: Supplementary dietary administration of an L. acidophilus to hypercholesterolemic male rats positively impacted testicular tissue and male fertility hormone levels.

Incomplete Isolated C7 Root Injury Caused by Gunshot Wound: A Case Report

Ulvi Çiftçi,Ahmet Tolgay Akıncı,Emre Delen,Doğan Güçlühan 대한신경손상학회 2017 Korean Journal of Neurotrauma Vol.13 No.1

Gunshot wounds to the spine cause severe neurological and/or internal organs damages. Although most of publications in the literature are realized on military injuries, increased civilian arming which raises civilian gunshot injuries is a new social danger causing serious health problems. In gunshot injuries to the spine; vertebral column, spinal cord and nerve roots are damaged with direct, indirect and transient cavitation related mechanisms. In this case report, we present 24 years old male patient who had severe pain and monoparesis in left upper extremity followed by gunshot injury to the spine with clinical, radiological and postoperative follow-up fndings.

Update on polycystic ovary syndrome

Gülay Çiftci 대한생식의학회 2021 Clinical and Experimental Reproductive Medicine Vol.48 No.3

Polycystic ovary syndrome (PCOS) is a common disorder in reproductive-age women. In 2018, an international evidence-based guideline announced recommendations spanning a wide range of issues on the assessment and management of PCOS. From the 166 recommendations, the present study reviews those that are of particular clinical relevance for daily practice and introduces other relevant studies that have been published since the global guideline. The 2018 guideline increased the antral follicle count cutoff for the diagnosis of PCOS from 12 to 20 when using a high-frequency probe. Hirsutism was defined as having a score of ≥4–6 based on a lower percentile of 85%–90% or cluster analysis, which was lower than the traditionally used 95th percentile-based cutoff. The diagnosis of PCOS in adolescents is challenging, and irregular menstruation was defined carefully according to years from menarche. The use of ultrasonography for the diagnosis of PCOS was restricted to those 8 years after menarche. As medication for non-fertility indications, combined oral contraceptives are the first-line drug. Metformin, in addition to lifestyle modifications, should be considered for adult patients with a body mass index ≥25 kg/m2 for the management of weight and metabolic outcomes. An aromatase inhibitor is the recommended first-line medication for ovulation induction, a subsequent individual patient data meta-analysis also reported the same conclusion. Whether the new global guideline will be fully adopted by many specialists and change clinical practice is open to question. Further studies are needed to better understand and manage PCOS patients well.

Settling characteristics of coal preparation plant fine tailings using anionic polymers

Hasan Ciftci,Serhat Isık 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.8

The objective of solid-liquid separation in thickeners in coal preparation plants is to obtain both a clear supernatant liquid with a low turbidity for reuse and a dense slurry. It is important for the smooth operation of the plant to produce good-quality recirculation water. In this study, settling characteristics of coal tailings (d80=70 μm) taken from the thickener feed of Derekoy Coal Preparation Plant (Manisa, Turkey) were investigated with the use of anionic polymers. In the tests we determined the effects of the process parameters including polymer type, polymer dosage, temperature, suspension pH, and pulp density on the flocculation of the fine tailings of the coal preparation operation. Minefloc anionic polymer showed a better flocculation performance in comparison with other polymers. An optimum settling rate of 300mm/min was reached at a dosage of 30 g/t-solids, a pulp density of 5%, pH 7.9, and temperature 25 oC using Minefloc polymer.

PRODUCTION AND MACHINABILITY OF SiCp-REINFORCED AL-2014 ALLOY MATRIX COMPOSITES

I. CIFTCI,Y. SAHIN 한국트라이볼로지학회 2002 한국트라이볼로지학회 학술대회 Vol.2002 No.10

SiCp-reinforced metal matrix composites (MMCs) containing 8 wt% and 16 wt% of SiCp-reinforced with 30 and 45 ㎛ in sizes were prepared by a melt stirring-squeeze casting technique. Microstructural observation showed that particle distributions were reasonably well. Turning experiments were carried out on the composites using uncoated and triple-layer coated carbide tools at various cutting speeds under a constant feed rate and depth of cut. Coated tools indicated better performance than uncoated tools for all the materials while the poor surface finish was obtained for coated tools.

Modelling coupled density-dependent flow and solute transport with the differential quadrature method

Emin Ciftci 한국지질과학협의회 2017 Geosciences Journal Vol.21 No.5

The salt water intrusion phenomenon endangering the groundwater sources, particularly in coastal aquifers, is modeled by the coupled density-dependent flow and solute transport equations. This study focuses on the solution of these interdependent equations by means of the polynomial based Differential Quadrature Method (DQM). The Lagrange interpolation polynomials were selected as basis functions to obtain weighting coefficients for approximating the spatial derivatives and the 4-stage, 4th order Strong Stability Preserving linear Runge Kutta (SSP-RK) algorithm was employed as the time integrator. Two well-known benchmark cases; Henry and Elder problems were examined to test the accuracy and the reliability of the proposed numerical model. Apart from these theoretical benchmark problems, the numerical model was tested with real experimental data from a laboratoryscale study in the literature. The DQM model was observed to provide stable and highly precise results regarding the current semianalytical and numerical solution schemes.