Person: GÖKDEMİR, YASEMİN
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GÖKDEMİR
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YASEMİN
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Publication Metadata only Bronchoscopic evaluation of unexplained recurrent and persistent pneumonia in children(WILEY-BLACKWELL, 2013) KARADAĞ, BÜLENT TANER; Gokdemir, Yasemin; Cakir, Erkan; Kut, Arif; Erdem, Ela; Karadag, Bulent; Ersu, Refika; Karakoc, Faziletd Background: Persistent or recurrent pneumonia in children can pose a significant challenge to paediatricians and respiratory physicians. Aim: The aim of this study is to determine the role of flexible bronchoscopy (FB) in evaluation of recurrent or persistent pneumonia that remain otherwise unexplained by non-invasive diagnostic tests in children. Methods: Retrospective evaluation of patients who underwent FB with an indication of recurrent or persistent pneumonia from 1997 to 2011. Results: Among 2600 FB procedures, 434 (17%) were performed with the indication of recurrent or persistent pneumonia. There were 237 (54%) boys. Median age at presentation was 84 months, and median duration of symptoms was 9 months. FB led to specific diagnosis in 33% of the cases. The most common diseases diagnosed by FB were malacia disorders (n: 32, 7%), aspirated foreign body (n: 30, 7%), endobronchial tuberculosis (n: 20, 5%), congenital airway anomalies (n: 14, 3%), mucus plugs (n: 14, 3%), pulmonary haemosiderosis (n: 12, 3%) and middle lobe syndrome (n: 11, 3%). During FB, only 6% of the patients had minor complications such as transient hypoxia, stridor and tachycardia. Conclusions: In our study, FB proved to be a safe and effective tool in evaluation of children with persistent or recurrent pneumonia. FB is indicated for children with recurrent or persistent pneumonia where the underlying diagnosis remains unclear even after non-invasive diagnostic tests.Publication Metadata only Ev ventilatörlü hastaların ağız ve diş sağlığının değerlendirilmesi pilot çalışma(2016-04-14) KARADAĞ, BÜLENT TANER; GÖKDEMİR, YASEMİN; ŞEN YAVUZ, BETÜL; KARGÜL, BETÜL; GÜNYÜZ E., BAŞ İKİZOĞLU N., ŞEN B., GÖKDEMİR Y., KARADAĞ B. T., ÖZBAY G., KULAN P., KARGÜL B.Publication Metadata only Polisomnografi aracılığıyla tanı alan bir nöroblastom olgusu(2019-10-11) ERGENEKON, ALMALA PINAR; ERDEM ERALP, ELA; GÖKDEMİR, YASEMİN; EKER, NURŞAH; TOKUÇ, AYŞE GÜLNUR; KARADAĞ, BÜLENT TANER; YILMAZ YEĞİT C., ERGENEKON A. P., ERDEM ERALP E., GÖKDEMİR Y., EKER N., TOKUÇ A. G., KARADAĞ B. T.Publication Metadata only Comparison of Conventional Pulmonary Rehabilitation and High-Frequency Chest Wall Oscillation In Primary Ciliary Dyskinesia(WILEY-BLACKWELL, 2014) KARADAĞ, BÜLENT TANER; Gokdemir, Yasemin; Karadag-Saygi, Evrim; Erdem, Ela; Bayindir, Ozun; Ersu, Refika; Karadag, Bulent; Sekban, Nimet; Akyuz, Gulseren; Karakoc, FaziletBackgroundEnhancement of mucociliary clearance by pulmonary rehabilitation (PR) is advocated in primary ciliary dyskinesia (PCD). Our primary aim was to compare the efficacy and safety of postural drainage, percussion and vibration [conventional PR (CPR)], and high frequency chest wall oscillation (HFCWO) by studying change in pulmonary function. Our secondary aim was to evaluate patient preferences regarding the two methods. MethodsThis was a controlled randomized crossover study. PCD patients between the ages of 7 and 18 years were assigned to two groups, first group performed airway clearance with CPR at hospital for 5 days and after a 2-day washout period HFCWO was applied to the same group at home. HFCWO was applied first to the other group and then these patients were hospitalized for CPR. The primary outcome measure of the study was pulmonary function test (PFT). The secondary outcomes were pulse arterial oxygen saturation (SpO(2)) and the perceived efficiency and comfort level. ResultsPFT values of patients increased significantly after both PR methods (before/after): CPR: FVC: 77.014.1/81.8 +/- 13.0 (P=0.002); FEV1: 72.9 +/- 14.8/78.7 +/- 13.5 (P=0.001); PEF: 73.8 +/- 14.5/82.5 +/- 14.5 (P=0.001); FEF25-75: 68.6 +/- 27.6/74.9 +/- 29.3 (P=0.007). HFCWO: FVC: 75.1 +/- 15.3/80.3 +/- 13.9 (P=0.002); FEV1: 71.4 +/- 16/77.4 +/- 14.6 (P=0.001); PEF: 70.9 +/- 18.0/78.3 +/- 17.7 (P=0.002); FEF25-75: 70.5 +/- 23.4/76.4 +/- 25.6 (P=0.006). There were no significant differences in % predicted FVC, FEV1, PEF, and FEF25-75 increased values with CPR and HFCWO. HFCWO was found more comfortable (P=0.04). Two PR methods were found efficient and no desaturation occurred during PR. ConclusionsPFTs were significantly increased after both PR methods. There were no differences in PFTs and SpO(2) between the CPR and HFCWO groups. Both PR methods were found efficient. HFCWO was found more comfortable. HFCWO may be an option in patients with chronic pulmonary disease and low adherence to PR. Pediatr Pulmonol. 2014; 49:611-616. (c) 2013 Wiley Periodicals, Inc.Publication Metadata only Novel mutations and deletions in cystic fibrosis in a tertiary cystic fibrosis center in Istanbul(WILEY, 2019) KARADAĞ, BÜLENT TANER; Atag, Emine; Ikizoglu, Nilay Bas; Ergenekon, Almala Pinar; Gokdemir, Yasemin; Eralp, Ela Erdem; Ata, Pinar; Ersu, Refika; Karakoc, Fazilet; Karadag, BulentBackgroundCystic fibrosis (CF) genotyping has garnered increased attention since the discovery of the cystic fibrosis transmembrane conductance regulator (CFTR) gene in 1989 led to the identification of over 1700 mutations on chromosome 7. Yet, little is known about the genetic profile of CF patients in Turkey. This study sought to determine the mutation distribution among CF patients seeking care at Marmara University. MethodsTwo hundred fifty previously diagnosed CF patients were included in the study. CFTR gene exons 1 to 27 were amplified by a polymerase chain reaction and whole DNA sequencing was performed. Duplications and deletions were investigated by the multiplex ligation-dependent probe amplification (MLPA) technique in patients with one or two unidentified mutations in sequence analysis. ResultsCFTR mutation analysis revealed 80 mutations and five large deletions were present in our study population. The five most common mutations were (delta) F508 (c.1521-1523delCTT) (28.4%), 1677delTA (c.1545-1546delTA) (6.4%), 2789+5G->A (c.2657+5G>A) (5.8%), N1303K (c.3909C>G) (2.4%), and c.2183AA->G (c.2051-2052delAAinsG) (4.0%). Large deletions were found in 16 patients. Four novel mutations and two novel deletions were detected in this study. ConclusionsWe have identified four novel mutations and two novel deletions using next-generation DNA sequencing and the MLPA technique and obtained an overall mutation detection rate of 91.4%. Detection of novel variants in CF patients will assist in genetic counseling and in determining appropriate patients for new therapies.Publication Metadata only Sleep disordered breathing and sleep quality in children with bronchiolitis obliterans(WILEY, 2016) KARADAĞ, BÜLENT TANER; Uyan, Zeynep S.; Turan, Ihsan; Ay, Pinar; Cakir, Erkan; Ozturk, Ersin; Gedik, Ahmet H.; Gokdemir, Yasemin; Erdem, Ela; Sen, Velat; Karadag, Bulent; Karakoc, Fazilet; Ersu, RefikaThe incidence of sleep-disordered breathing (SDB) increases in chronic lung diseases. Our aim was to evaluate SDB and sleep quality in children with postinfectious bronchiolitis obliterans (BO) and assess associated risk factors. We hypothesized that children with BO are at increased risk for SDB and have impaired sleep quality. We also hypothesized that severity of SDB and impairment of sleep quality is related to the severity of lung disease. Sleep Related Breathing Disorder (SRBD) subscale of the Pediatric Sleep Questionnaire (PSQ) and Pittsburgh Sleep Quality Index (PSQI) questionnaires; spirometry, impulse oscillometry (IOS), and overnight polysomnography (PSG) were performed. Twenty-one patients (14 male, median age: 8.3 years) were enrolled. Five patients (25%) had a PSQ score of >0.33, predictive of a SDB. Ten patients (48%) had poor sleep quality. Four patients (19%) had an OAHI of >1/hr. Nineteen patients (90%) had a high desaturation index. Four patients (19%) had a mean oxygen saturation of <93%. Median central apnea time was 7.5 (IQR: 6.9-9.1) seconds. Central apnea index of the patients correlated positively with R5, R10, R15, R20, Z5, and negatively with X10 and X15 at IOS. There was a positive correlation between the lowest oxygen saturation and FVC, FEV1, X5, X10, X15, X20 while there was a negative correlation between lowest saturation and the central apnea index at PSG, R5, R10, and Z5 at IOS. Mean oxygen saturation during PSG correlated positively with FVC, FEV1, FEF25-75, X5, X10, X15, X20 results. The risk of nocturnal hypoxia is increased in patients with BO and correlated to the severity of lung disease determined by pulmonary function tests. Although BO patients have a shorter duration of central apneas, they are more prone to desaturate. Pediatr Pulmonol. 2016;51:308-315. (c) 2015 Wiley Periodicals, Inc.Publication Open Access An unusual case of childhood sarcoidosis(SOC ARGENTINA PEDIATRIA, 2013-10-01) KARADAĞ, BÜLENT TANER; Gokdemir, Yasemin; Ersu, Refika; Karadag, Bulent; Karakoc, Fazilet; Kiyan, Gursu; Kaya, Handan; Kasapcopur, Ozgur; Erdem, Ela; Dagli, ElifSarcoidosis is a systemic granulomatous disease of unknown etiology that may affect many systems, mainly lungs. Most of the patients present at stages I and II lung involvement. Pulmonary infiltrates without hilar lymphadenopathy (state III) rarely occurs. Extrapulmonary organ involvement is common in pediatric sarcoidosis. The aim of this report is to present an unusual case of childhood sarcoidosis with stage III lung involvement without any extrapulmonary organ involvement. A 7-year-old girl presented with the complaints of malaise, fatigue, weight loss and dyspnea. There was patchy, bilateral ground glass view at high resolution computer tomography. Video assisted thoracoscopic lung biopsy was performed and histopathological examination showed nonnecrotising epitheloid-cell granulomas with giant cells. She did not have any hilar or extrapulmonary organ involvement and pulmonary sarcoidosis at stage III was diagnosed. Sarcoidosis should be considered in the differential diagnosis of children with interstitial lung disease.Publication Open Access Performance Evaluation of a New Coulometric Endpoint Method in Sweat Testing and Its Comparison With Classic Gibson&Cooke and Chloridometer Methods in Cystic Fibrosis(FRONTIERS MEDIA SA, 2018-05-22) KARADAĞ, BÜLENT TANER; Gokdemir, Yasemin; Vatansever, Pinar; Karadag, Bulent; Seyrekel, Tuncay; Baykan, Ozgur; Ikizoglu, Nilay Bas; Ersu, Refika; Karakoc, Fazilet; Haklar, GoncagulBackground: The objective of the study was to assess the diagnostic efficacy of the coulometric endpoint method and compare it with classic Gibson&Cooke and chloridometer methods. Methods: This study is a prospective clinical study comparing two conventional sweat testing methods with the coulometric endpoint method in previously diagnosed cystic fibrosis (CF) patients and a non-CF control group. All individuals underwent two simultaneous sweat collections. One sample of sweat, collected by the CF Delta collector coil system, was analyzed by two methods: the titrimetric Cl- measurement (Sherwood (R) Chloridometer 926S, Sherwood Scientific Ltd., Cambridge, UK) and the coulometric endpoint method (CF Delta Collection System (R), UTSAT/Turkey); the second sample was collected from the other forearm by the Gibson&Cooke method and the collected sweat was analyzed by manual titration in accordance with the Schales&Schales method. Within-run and between-run imprecisions were evaluated via Cl- concentrations of 40, 70, and 130 mmol/L samples. Results: One hundred and seventy (60 CF and 110 controls) subjects were included in the study. All three sweat test methods discriminated CF subjects from the healthy individuals. The mean difference between the coulometric endpoint and titrimetric Cl - measurement methods was -1.5 mmol/L, (95% confidence limits of agreement, ranging from -8.9 to 15.9 mmol/L); the mean difference between manual titration vs. coulometric endpoint methods was 12.8 mmol/L, (95% confidence limits of agreement ranging from -9.7 to 45.3 mmol/L) and the mean difference between the manual titration and titrimetric Cl - measurement methods was 11.3 mmol/L, (95% confidence limits of agreement ranging from -7.8 to 40.5 mmol/L) based on a Bland-Altman analysis. In the Receiver operating characteristic (ROC) analysis, made on the basis that Cl- concentration values <40 mmol/L exclude the CF diagnosis, the coulometric endpoint method resulted in 96.7% sensitivity and 100% specificity for a cut-off value of 58.5 mmol/L (AUC: 0.994; 95% CI = 0.986-1.000; p < 0.001). Conclusions: The coulometric endpoint method can be as reliable as quantitative sweat Cl- analysis and may be considered as a definitive diagnostic tool for CF.Publication Metadata only Related factors of dental caries and molar incisor hypomineralisation in a group of children with cystic fibrosis(Springer Verlag, 2014) KARGÜL, BETÜL; Peker S., Mete S., Gokdemir Y., Karadag B., Kargul B.Aim: To investigate dental caries and molar incisor hypomineralisation (MIH)-related factors such as treatment, diet, brushing and salivary factors in children with cystic fibrosis (CF) compared with healthy peers. Study design: A cohort study was performed. Methods: This study was performed on 30 CF children comprising patients at the Faculty of Medicine and 30 control children recruited from the Dental School. Salivary factors, dental caries, MIH, daily diet, brushing habits were analysed. Statistical analysis was calculated by SPSS for Windows. Results: Decay missing filled teeth (DMF-T) score was 4.6 ± 4.0 in CF and 7.7 ± 2.7 in control (p = 0.001). 43 % of CF children with MIH were found to use antibiotics, but no significant difference in the caries experience was found with antibiotic usage (p > 0.05). DMF-T of CF adolescents (23 %) who use Tobramycin was 7 ± 3.5. DMF-T of CF children (20 %) who take other antibiotics was 2.5 ± 3.5, but no statistical difference was found (p = 0.054). Saliva pH, salivary flow rate, and buffering capacity were not found statistically significant (p > 0.05). Statistics: Percentage arithmetic mean value, standard deviation, independent sample t test, Fisher's exact test, Chi-square test and Mann-Whitney U test were used, while a p value of <0.05 was considered statistically significant. Conclusions: Medication and diet could be considered as a risk factor for dental caries and factors such as salivary pH, good oral hygiene could play a protective role for oral health CF children. MIH frequency and lower caries experience seen in CF children could be due to salivary factors or pharmacological treatment they take. The multidisciplinary approach team would be advantageous in the management of children with CF and oral health should be under control during early years of life by paediatric dentists. © 2014 European Academy of Paediatric Dentistry.Publication Metadata only Flexible bronchoscopy as a valuable tool in the evaluation of infants with stridor(SPRINGER, 2013) KARADAĞ, BÜLENT TANER; Erdem, Ela; Gokdemir, Yasemin; Unal, Fusun; Ersu, Refika; Karadag, Bulent; Karakoc, FaziletThe aim is to determine clinical characteristics, flexible bronchoscopy (FB) findings including associated airway abnormalities and other conditions, treatment modalities and long term follow-up of children with congenital stridor. Medical records of children, who underwent FB for the evaluation of stridor between 1 January 2004 and 31 December 2009 were retrospectively reviewed. Demographic characteristics, symptoms and physical examination findings at presentation, FB findings, follow-up data including the time to resolution of symptoms and treatment modalities, presence of associated conditions were assessed. 109 children were enrolled to the study. Laryngomalacia was the most common etiology for stridor. Laryngomalacia was isolated in 37 patients and 54 patients had secondary airway lesions (SALs). Diagnoses other than laryngomalacia such as subglottic hemangioma, subglottic web, isolated tracheomalacia were found in 18 patients. In 90 % of patients, stridor resolved before 3 years of age without any surgical intervention and there was no significant difference in terms of the persistence of stridor between patients with isolated laryngomalacia and associated SALs. Duration of stridor was significantly longer in both patients with neurological abnormalities and reflux symptoms. Surgical procedure was performed in 19 of the patients. There is a high incidence of SALs in patients with laryngomalacia. FB is helpful for identifying anomalies requiring surgical treatment.
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