RETRACTED ARTICLE: Evaluation of macular thickness and visual pathways using optic coherence tomography and pattern visual evoked potential in different clinical stages of obstructive sleep apnea syndrome.

AIM: The present study aimed to investigate and compare possible changes in amplitude and latency of pattern visual evoked potentials (PVEP) and thickness of quadrants of the macula (TQM) using optic coherence tomography (OCT). MATERIALS AND METHODS: According to polysomnography examinations, 30 mild, 30 severe, 30 controls were included in the study after approval from the ethics committee. RESULTS: No significant difference was found in age and gender between the groups (p = 0.184 and p = 0.954). Significant difference was found between external and internal superior TQM, mean thickness of ganglion cell layer in comparison of all three groups (p = 0.011, p = 0.047, p = 0.030). In comparison between severe OSAS and control groups, significant difference was found in internal nasal, internal superior and external superior TQM (p = 0.048, p = 0.033, p = 0.014) while no significant difference was found TQM in comparison between the mild OSAS and control groups. In comparison between the group of severe OSAS and controls, significant increase was found in P100 as well as N145 latencies whereas only P100 latency was found to increase when mild OSAS was compared with controls. No significant correlation was found between TQM and PVEP parameters in mild and severe OSAS patients. DISCUSSION: Latency and amplitude of PVEP altered in OSAS because edema and inflammation was remarkable in mild as well as severe stages of the disease. Furthermore, thinning in the macula was observed only in severe stages of the disease, explained with level of atrophy and exposure to extended hypoxia.

Use of Tobacco Products in Turkish Children and Young People: Is there an Alarm for Hookah Use?

OBJECTIVES: In the recent years, it has been observed that the use of hookah, a tobacco product, has increased in children and young people in Turkey. This study was conducted to determine the prevalence of cigarette and hookah use in children and young people specific to age and gender and to define the factors relevant to the use of hookah. MATERIALS AND METHODS: The study was conducted with secondary/high school students between 11 and 17 years of age (Survey 1, n=4718) and with university students between 18 and 23 years of age (Survey 2, n=1588) as two groups, which made a total of 6306 students. The students were asked to fill in a questionnaire which consisted of questions about socio-demographic data and the use of tobacco and tobacco products. RESULTS: It was determined that the use of cigarette and hookah was high in males, and it increased as the age increased in both genders (p<0.05). It was also determined that parents and friends using cigarette and hookah affected the use of cigarette and hookah in the study groups in both surveys (p<0.05). Additionally, it was determined that the educational level of the parents and being of a high social class were the social determiners of hookah use (p<0.05). CONCLUSION: It is important that we fight against the use of all tobacco products, especially in young people. Education about the damages of tobacco and applying tobacco products should start at an early age, and accurate tobacco control models may provide support in this field.

Evaluation of effects of positive airway pressure treatment on retinal fiber thickness and visual pathways using optic coherence tomography and visual evoked potentials in the patients with severe obstructive sleep apnea syndrome.

INTRODUCTION: Hypoxia during sleep in obstructive sleep apnea syndrome (OSAS) increases intracranial pressure, decreases cerebral perfusion pressure, and alters vascular supply to the optic nerve. Pattern visual evoked potential (pVEP) has revealed that it causes alterations in the optic nerve, and optic coherence tomography has shown that it causes alterations in the retinal and macular layers. OBJECTIVES: To detect and compare possible alterations in macula and peripapillary retinal nerve fiber thickness (pRNFL) using OCT and in the optic nerve pathways using pVEP before and after positive airway pressure (PAP) in the patients with severe OSAS. MATERIALS AND METHODS: Thirty patients who were diagnosed as having severe OSAS in the neurology-sleep outpatient clinic and 30 healthy control subjects were included in the study. Ophthalmic examinations were performed prior to (month 0) and after (month 6) PAP treatment, and pVEP (peak time [PT] and amplitude) and OCT parameters (peripapillary retinal-macular layers) were compared. RESULTS: In the comparison between the severe OSAS (before treatment) and control groups, thinning was found in pRNFL (average, nasal, inferior) and in the macular layers (external and internal superior quadrants) (p < 0.05). pVEP investigation revealed increased PT in P100 and N145 waves and decreased amplitude of N75-P100 waves. In the comparisons before and after PAP treatment, a decrease in PT of N75 and P100 waves and increase in N75-P100 amplitudes were found. In the pRNFL, significant thickening was found in the layers with thinning before treatment, whereas no significant thickening was found in macular layers, except for the fovea. DISCUSSION: It was shown that PAP treatment in patients with severe OSAS prevents hypoxia without causing alterations in intraocular pressure and thus reduces inflammation and causes thickening in the pRNFL and macular layers.

Evaluation of retinal fiber thickness and visual pathways with optic coherence tomography and pattern visual evoked potential in different clinical stages of obstructive sleep apnea syndrome.

PURPOSE: To investigate the possible changes in retinal nerve fiber layer (RNFL) by optic coherence tomography and in the amplitudes and peak times (PTs) in pattern visual evoked potential (pVEP) and to compare them in obstructive sleep apnea syndrome (OSAS). METHODS: This prospective study included patients with mild OSAS (n = 30), severe OSAS (n = 30), and 30 control subjects. All patients were assessed after obtaining the approval from our hospital's ethics committee. RESULTS: There was no difference in age and gender between the groups (p = 0.184, p = 0.954). By analysis of variance, there was a significant difference in RNFL values among patients with mild OSAS, severe OSAS, and control for three measures of RNFL (average p = 0.044, nasal p = 0.003, inferior p = 0.027). In severe OSAS group, nasal and inferior quadrants of the RNFL were found to be thinner than the control group (p = 0.008, p = 0.031). We showed that the PT of P100 and N145 was prolonged in severe OSAS compared to the control group (p < 0.001) and that PT of P100 was prolonged in mild OSAS compared to the control group (p < 0.05). The amplitude of N75-P100 was significantly decreased in patients with both severe OSAS and mild OSAS compared to the control group (p < 0.001). Correlation of RNFL and pVEP values showed that the inferior quadrant RNFL thickness is correlated with both P100 and N145 PTs (r = 0.271*, p = 0.036 and r = 0.290*, p = 0.043, respectively) and N75-P100 amplitude (r = 0.378**, p = 0.003) in severe OSAS group. CONCLUSIONS: In mild and severe stages of the disease, edema and inflammation were evident and VEP PT and amplitudes were affected in both groups. Furthermore, thinning in RNFL in the severe stage of the disease might be associated with higher atrophy levels and prolonged exposure to hypoxia.

[Smoking prevalence of elementary school students in Manisa]. / Manisa ili ilkögretim ögrencilerinde sigara içme prevalansi.

INTRODUCTION: In this study it is aimed to evaluate the prevalence of smoking, factors affecting smoking status, and the attitudes of the elementary school students towards the smoking prohibition law which was approved in July 2009, in city. MATERIALS AND METHODS: The universe of this descriptive study was 6th-7th-8th class, 8236 urban and 4937 semi-urban, total 13.173 elementary schools students in city center. Study population was determined on the basis of a previous study in which the smoking trial prevalence was found 17.5%, 831 students in 6 urban 3 semi-urban, total 9 schools were chosen randomly. A questionnaire was prepared investigating smoking status, the effects of smoking and family history. Among the 9 chosen schools, the questionnaire was applied to 615 students. SPSS 14.0 statistical package was used. RESULT: Forty-seven percentages of the students were female. Prevalence of smoking trial was found 23.5% (16% in urban, 35% in semi-urban schools) while the prevalence of smoking was 7.1% (1.7% in urban, 15.7% in semi-urban schools). Mean age of first smoking trial was 10.04 ± 2.3. The smoking prohibition law was supported by 86.6% of the students, the warnings on the cigarette package was thought to be effective by 43.3% students and 35.2% of the students were exposed to passive smoke. Male gender, social status, education level of the family, smoker family member or close friends were found to be important risk factors for smoking prevalence of the students. CONCLUSIONS: The early onset of smoking should guide the smoking struggle be concentrated in elementary school especially in semi-urban areas where the smoking prevalence is high.

The validity and reliability of the Turkish version of the Leicester Cough Questionnaire in COPD patients

Background/aim: The reliability and validity of the Turkish version of the Leicester Cough Questionnaire (LCQ) have been evaluated before. This study aimed to validate the Turkish version of the LCQ in chronic obstructive pulmonary disease (COPD) patients with cough. Materials and methods: COPD (GOLD B, C, D) patients over age 40 (n = 75) and healthy volunteers as a control group (n = 75) were included. A sociodemographic data form, the LCQ, the Short Form-36 (SF-36) quality of life questionnaire, and the World Health Organization Quality of Life Brief Form for Turkish people were completed. The internal reliability of the LCQ was determined using the Cronbach alpha coefficient (>0.6) and its repeatability by the intraclass consistency coefficient (P < 0.05) was accepted as significant. Results: For internal consistency, Cronbach alpha coefficients of all subscales of the LCQ, physical, psychological, and social, were found as 0.72, 0.86, and 0.83, respectively, with 0.92 for the total index. There was significant internal consistency for all subscales and the total index (Cronbach alpha coefficients of >0.6). In test­retest reliability, the correlation coefficient ranged between 0.71 and 0.80 for each question and was calculated as r = 0.89 for total LCQ score (P < 0.001). Conclusion: The Turkish version of the LCQ has been found to have acceptable reliability and validity for use in Turkish COPD patients with chronic cough.

[Evaluation of physians, patients, relatives and society of opinions on the told lung cancer diagnosis]. / Hekimlerin, hasta yakinlarinin ve toplumun akciger kanseri tanisinin söylenmesine iliskin görüslerinin degerlendirilmesi.

INTRODUCTION: In our country, this is usually done by patient relatives. In this study, we aimed to investigate the thought of doctors who done the diagnosis, doctors who arrange the treatment, first degree relatives of patients with lung cancer, and population as a control. MATERIALS AND METHODS: 310 subjects (100 doctors, 110 first degree realtives of patients, and 100 subjects as a control) were included to the study. The mean age was 39.77 ± 11.44 years and there was 170 females. 46% of doctors were giving cancer treatment (chemotheraphy/radiotheraphy). RESULT: 84.5% of subjects were answered the question (Do you want to know the diagnosis of lung cancer if you are lung cancer?) as "yes" and the answers were not different between groups (p> 0.05). 72 of doctors were giving information about diagnosis of patients. This ratio was 89.1% in doctors who arrange lung cancer treatment whereas it was 57.4% in doctors who do not arrange cancer treatment. The percent age of learning of diagnosis of lung cancer throughout the time in doctors, population, and patient's relatives were 19%, 34%, and 59% respectively (p< 0.05). Information about quality of life was more important in relatives of patients (87%) than population (65%) and doctors (63%) (p< 0.05). Quality of life was more important for doctors who arrange lung cancer treatment (76.7)% than doctors who did not (48.8%) (p< 0.05). Patients who were more children wanted to stay with their family at end stage of disease (p< 0.05). CONCLUSIONS: According to this study we think that doctors should say the diagnosis of lung cancer in the form of they understand, inform the patients and relatives about treatment, and quality of life and this can increase patient trust to doctor and compliance of patients to the treatment.

The Role of Endobronchial Biopsy in the Diagnosis of Pulmonary Sarcoidosis.

OBJECTIVES: This study aimed to investigate the additional diagnostic value of endobronchial biopsy (EBB) in the diagnosis of pulmonary sarcoidosis. MATERIALS AND METHODS: This retrospective cross-sectional study included 59 patients with a preliminary diagnosis of sarcoidosis who were admitted to the Pulmonary Diseases Outpatient Clinic of a tertiary healthcare center between January 2005 and October 2012. The socio-demographic characteristics of the patients as well as clinical and radiological findings were recorded. All patients, irrespective of the presence of an endobronchial lesion (EBL), underwent fiberoptic bronchoscopy (FOB); two to four specimens were taken using EBB from the carina of the right middle lobe in the patients with EBL. RESULTS: Of the patients, 39 (66.1%) had normal bronchoscopic findings, while 5 had EBL. Diagnosis was based on EBB in 11 patients (18.6%). Six patients (15.3%) with normal bronchial mucosae were pathologically diagnosed by EBB. There was no statistically significant relationship between the diagnostic ratio of EBB and disease stage, extrapulmonary involvement, FOB findings, elevated lymphocyte rate in bronchoalveolar lavage (≥ 13%), a CD4/CD8 ratio of ≥ 3.5, and serum angiotensin-converting enzyme (ACE) level (p> 0.05). CONCLUSION: EBB not only offers the advantage of a high diagnostic ratio in patients with mucosal abnormalities but also contributes to pathological diagnosis in patients with normal mucosa. We recommend using EBB to support diagnosis with a low complication rate for patients undergoing FOB with a preliminary diagnosis of sarcoidosis in healthcare centers, where endobronchial ultrasound (EBUS) is unavailable.

Knowledge Level of the Primary Healthcare Providers on Chronic Obstructive Pulmonary Disease and Pulmonary Rehabilitation.

INTRODUCTION: Awareness of the healthcare providers on chronic obstructive pulmonary disease (COPD), which is an important cause of mortality and morbidity in our country and all over the world, and on pulmonary rehabilitation (PR) which plays an important role in its nonpharmacological treatment will provide effectiveness in diagnosis and treatment of COPD. The present study aimed at determining knowledge level of the healthcare providers about COPD and PR. MATERIALS AND METHODS: In this cross-sectional study, family practitioners and staff of home-care in central county of Manisa City were applied a questionnaire in order to determine their knowledge level on COPD and pulmonary rehabilitation during the in-service training on "pulmonary rehabilitation, home-care services for the pulmonary diseases, and respiratory exercises." RESULTS: 65.5% of the healthcare providers responded to the survey. Rate of those correctly knowing at least one of four items was 97.2%. No responder knew all items correctly. Average value for correct answers was 5.30 ± 2.1 (range: 1-10). The physicians, men, and those working in family health centers had higher level of knowledge on COPD compared to nonphysician healthcare providers (p = 0.006), women (p = 0.002), and those working in other practices (p = 0.019), respectively. CONCLUSION: Knowledge level of the primary healthcare providers on COPD and PR remains inadequate. Dynamic postgraduate training on this topic will be useful in referring the patients to centers giving service for this condition.

Varenicline disrupts prepulse inhibition only in high-inhibitory rats.

Varenicline, a widely used smoking cessation drug, has partial agonistic activity at α4ß2 nicotinic receptors, and full agonistic activity at α7 nicotinic receptors. Thus it may interact with cognitive processes and may alleviate some of the cognitive disturbances observed in psychotic illnesses such as schizophrenia. We aimed to test the effects of varenicline on sensorimotor gating functioning, which is crucial for normal cognitive processes, especially for the integration of sensory and cognitive information processing and the execution of appropriate motor responses. Prepulse inhibition (PPI) of the acoustic startle reflex was used to test the sensorimotor gating functioning. First, the effects of varenicline and nicotine on rats having high or low baseline PPI levels were evaluated; then, varenicline was applied prior to apomorphine (0.5 mg/kg), and MK-801 (0.15 mg/kg), which are used as comparative models of PPI disruption. Varenicline (0.5-3 mg/kg) did not change PPI when given alone in naïve animals. When rats were selected according to their baseline PPI values, varenicline (1 mg/kg) significantly decreased PPI in high-inhibitory (HI) but not in low-inhibitory (LI) rats. Nicotine (1 mg/kg; tartrate salt) produced a similar activity in LI and HI groups. In combination experiments, varenicline did not reverse either apomorphine or the MK-801-induced disruption of PPI. These results demonstrate that the effects of both varenicline and nicotine on sensorimotor gating are influenced by the baseline PPI levels. Moreover, varenicline has no effect on apomorphine or the MK-801-induced disruption of PPI.

Effect of smoke-free legislation on smoking cessation rates in teachers in Manisa, Turkey.

OBJECTIVE: This study investigated the attitudes of Turkish adults towards the ban on smoking in public areas and compared annual smoking cessation rates before (pre-2009) and after (post-2009) the ban became law, using data from a survey of teachers. METHODS: A self-reported questionnaire was used to collect data from teachers in Manisa, Turkey. Annual smoking rates were calculated. Joinpoint regression analysis was used to identify when a significant change occurred in the annual smoking cessation rate. RESULTS: Questionnaire response rate was 79.6% (579/727); 47.8% (277) of respondents were male. Smoking prevalence among men and women was 32.7% and 24.7%, respectively, and 97.3% of nonsmokers and 75.5% of current everyday smokers supported the law changes. Results of the Joinpoint analysis showed no significant change in annual smoking cessation rate between 2001-2002 and 2006-2007; but there were significant reductions in smoking rates between 2007-2008 and 2010-2011. CONCLUSIONS: Teachers in Turkey have a positive attitude to the law on smoking. The smoking cessation rate in teachers was significantly increased by changes in legislation.

[A health survey in the workers of municipality]. / Belediye çalisanlarinda akciger sagligi taramasi

INTRODUCTION: Internal and external air pollution that is gradually increasing due to urbanization and industrialization has a negative impact on the lung health. A health survey has been applied to evaluate the respiratory symptoms, respiration functions and smoking habbits of the workers of Izmir Konak Municipality whom have been reported to have a high rate of smoking habbit and be affected by the external air pollution due to their being working in the field by the Municipality's doctor. MATERIALS AND METHODS: Questionnaire that are composed of the topics of work anamnesis, environmental anamnesis, curriculum vitae, symptoms (coughing, sputum, wheezing, dyspnea, hemoptysis) and smoking have been executed to 301 workers by face to face interview and their chest X-rays have been reviewed. RESULTS: Dyspnea on exertion, sputum in the morning, wheezing and morning cough have been the most frequently observed complaints (respectively 37.2%, 32.2%, 27.9% and 24.9%). Sanitary workers have reported sputum in the morning more while maintanance shop workers have reported wheezing more (p values respectively 0.009, 0.008). No significance has been observed while the workers are evaluated one by one regarding to their work groups. No significant difference was identified between the addiction of smoking and nicotin addiction or pulmonary function test and chest X-rays (p> 0.05) but active smoking was much more seen in drivers (p= 0.047). CONCLUSION: Although working on the hazardous work branch does not institute a sharp distinction, it becomes significant to trace and lead the workers in order to obtain their lung health protection in long term. Informing and influencing the workers about the harms of smoking and the ways to quit has been the most considerable acquisition of this survey.

Does high-frequency chest wall oscillation therapy have any impact on the infective exacerbations of chronic obstructive pulmonary disease? A randomized controlled single-blind study.

OBJECTIVE: To investigate the impact of high-frequency chest wall oscillation in chronic obstructive pulmonary disease patients with infective exacerbation. DESIGN: Clinical randomized controlled trial. SETTING: Patients received high-frequency chest wall oscillation therapy at the Department of Pulmonology. SUBJECTS: Stage III-IV chronic obstructive pulmonary disease patients hospitalized with acute infective exacerbation who had received high-frequency chest wall oscillation therapy were studied. INTERVENTIONS: Patients were randomized into two groups, which were classified as I and II. All patients have been treated with bronchodilators, antibiotics, if necessary oxygen and patient education, as part of acute chronic obstructive pulmonary disease exacerbation protocol. Group II patients received additional high-frequency chest wall oscillation therapy. MAIN MEASURES: Body mass index (B), forced expiratory volume in the first second (O), modified Medical Research Council dyspnea scale (D) and 6-minute walking test (E) (BODE) index, forced expiratory volume in the first second, dyspnea, exercise capacity, oxygenation parameters and hospitalization of duration were recorded at baseline and at three-days and five-days follow-up. RESULTS: From April 2009 to July 2011, a total of 99 patients were assessed for eligibility, 50 patients were enrolled and randomized into two groups. A total of 50 (100%) patients (25 in Group I and 25 in Group II) were followed up for five days. Application of high-frequency chest wall oscillation therapy resulted in no significant advantage in all outcomes (p > 0.05). Mean (SD) baseline BODE index value in Group I was 7.72 (1.76), in Group II was 7.72(1.89) (p = 0.55). On the fifth-day assessment, mean (SD) BODE index value in Group I was 7.24 (1.83), in group II was 6.44 (2.46) (p = 0.18). CONCLUSIONS: The application of high-frequency chest wall oscillation therapy offers no additional advantages on infective exacerbations in chronic obstructive pulmonary disease.

An unusual presentation of bronchial rupture.

Persistent hydropneumothorax was diagnosed in a 62-year-old female with a history of blunt trauma, although she was treated with chest tube and closed underwater seal drainage. Computed tomography and fiberoptic bronchoscopy findings were consistent with "fallen lung" syndrome. Fiberoptic bronchoscopy also found a cavitary lesion at the right tracheobronchial angle. Forceps biopsy of the cavitary lesion indicated bronchogenic carcinoma. Our final diagnosis was tracheobronchial complete rupture and fallen lung syndrome secondary to malignancy.

Validity and reliability of "Asthma Quality of Life Questionnaire" in a sample of Turkish adult asthmatic patients.

We aimed to investigate the validity and reliability and of "Asthma Quality of Life Questionnaire (AQLQ)" in Turkish adult asthmatic patients. New or previously diagnosed [according to Global Initiative for Asthma (GINA) 2008] symptomatic 118 consecutive stable asthmatic patients between 18 and 55 years old were included. Asthma severity was determined and Turkish adaptation of the AQLQ was administered. Lara asthma symptom scales (LASS), pulmonary function tests, Turkish adaptation of Medical Outcomes Survey Short Form-36 (SF-36) were evaluated. All assessments were done twice at recruitment and after 10 weeks. During this period patients were allowed to make modifications on their medication when necessary. Among the recruited 118 patients 95 were female and 14 were lost in the follow-up. Sixty-two percentages of the patients had mild and 38% moderate asthma. The internal consistency of AQLQ was high (Cronbach's alpha 0.81-0.87) and item-total score correlations were ranging from 0.75-0.89. The cross-sectional and longitudinal correlations between AQLQ total and domain scores and SF36 domain scores were in a range of little or fair degree (r= 0.241-0.626, p< 0.005). Total AQLQ scores were observed significantly different according to disease severity and LASS both in the first (p< 0.001, both) and 10 weeks follow-up visits (p= 0.006, p< 0.001 respectively). A statistical significant change was observed in AQLQ symptom score as in total LASS changed (p< 0.001, both) in the follow-up. Our results demonstrated that Turkish version of AQLQ is feasible, reliable, valid and sensitive to changes in adult asthmatics.

[Level of smoking of 3rd and 4th grade students studying health and related factors: follow-up study]. / Saglik egitimi alan 3 ve 4. sinif ögrencilerinde sigara kullanimi ve etkileyen faktörler: Izlem arastirmasi.

The levels of smoking of 1st and 2nd year students at Faculty of Medicine and Manisa School of Health at Celal Bayar University were investigated in 2006-2007. This study is carried out in order to see if there is a change in the same students' level of smoking while they are in 3rd and 4th year. In addition, the study aimed to examine the factors affecting the level of use and attitudes towards the law effectuated in July 19, 2009. This is a follow-up study with 80.42% return rate. A 26-item structured questionnaire was administered. The participants filled out the questionnaires under supervision of the researchers in their classrooms. The University Institutional Review Board approved the study. The total of participants (263) of the follow-up study included 189 female and 74 male. The rate of experimenting with smoking was 49% with the mean age of 15.7 (SD= 4.01 years). The mean age of experimenting with smoking was the earliest on male students studying at faculty of medicine. The level of smoking was found to be the most on females, studying at faculty of medicine and staying at the dormitory, with smoking parents (p< 0.05). The most important reason to begin smoking was curiosity (55.2%) while bad breath and yellowing of teeth were the reasons to quit (91.7%). 83.3% of the students thought that the law will be effective on quit smoking. The level of both experimenting and use of smoking has been increased over time. It is suggested that medical students' awareness about the danger of smoking should be raised at earlier grades. In addition, lectures should be offered to students at School of Health and they should be encouraged to unite in order to fight with smoking.