<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-18T23:14:53Z</responseDate><request verb="GetRecord" identifier="oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/18403" metadataPrefix="oai_dc">https://ebyu-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/18403</identifier><datestamp>2026-10-18T20:56:32Z</datestamp><setSpec>openaire</setSpec><setSpec>driver</setSpec><setSpec>com_ebyu_10000</setSpec><setSpec>col_ebyu_10001</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>RELATIONSHIP BETWEEN SERUM ASYMMETRIC DIMETHYLARGININE LEVEL AND OBSTRUCTIVE SLEEP APNEA SYNDROME SEVERITY</dc:title><dc:creator>Balbay, Ege Gulec</dc:creator><dc:creator>Annakkaya, Ali Nihat</dc:creator><dc:creator>Arbak, Peri</dc:creator><dc:creator>Cangur, Sengul</dc:creator><dc:creator>Safçi, Sinem Berik</dc:creator><dc:creator>AYDIN, Leyla YILMAZ</dc:creator><dc:creator>Memişoğulları, Ramazan</dc:creator><dc:creator>Admış, Özlem</dc:creator><dc:creator>Ari, Betul</dc:creator><dc:subject>Solunum Sistemi</dc:subject><dc:subject>Genel ve Dahili Tıp</dc:subject><dc:description>Aim: The repetitive hypoxemia can induce oxidative stress mechanisms. Oxidative stress increases serum asymmetric dimethylarginine (ADMA) levels in patients with obstructive sleep apnea syndrome (OSAS). To in- vestigate the relationship between serumlevels of ADMA and OSAS severity. Methods: 330 patient’s records, who underwent overnight polysomnogra- phy (PSG) were retrospectively examined. The patients who had an abnor- mal serum glucose, lipid, thyroid, renal and liver function tests levels, had excluded. 72 patients had participating criteria. Patients were categorized into five groups according to apnea/hipopnea index (AHI). Measurement of ADMA levels were performed by ELISA kit. Results: The mean age was 44,19 ± 14,24 years. 31,9 % of the patients were female. Patients in normal group, severe, medium, mild and posi- tional–REM dependent OSAS group were 26,4%, 25%, 6,9 %, 16,7% and 25%; respectively. A significant positive correlation was found between AHI and ADMA (r= 0,483; p&lt;0,001). Appropriate cut-off criterion was set at 1,39 for ADMA. Sensitivity for this value was 73,58 % (95 % Confidence Interval (CI): 61,71- % 85,45 %) and specificity was 94,74 % (95 % CI: 84,70- % to 100%). Accuracy or correct classification rate was found to be 79,17 %. The positive predictive value was 97,5 % and negative predictive value was 56,25 %. The positive likelihood ratio (LR +) was 13,98 (LR + &gt; 10) and the negative likelihood ratio was (LR-) 0,28 (R- &lt;1). Conclusions: ADMA was found to be a strong and good diagnostic tool among patients with normal levels for glucose, lipid, TSH, creatinine and liver function tests.</dc:description><dc:date>2022</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/ebyu/18403</dc:identifier><dc:identifier>https://doi.org/10.36516/jocass.2022.99</dc:identifier><dc:language>en</dc:language><dc:relation>Çukurova Anestezi ve Cerrahi Bilimler Dergisi</dc:relation><dc:rights>info:eu-repo/semantics/openAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/18403</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>