Araştırma Çıktıları
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Item The predictors of COVID-19 mortality in a nationwide cohort of Turkish patients(W B SAUNDERS CO LTD, 2021-01-01) Kokturk, Nurdan; Babayigit, Cenk; Kul, Seval; Cetinkaya, Pelin Duru; Nayci, Sibel Atis; Baris, Serap Argun; Karcioglu, Oguz; Aysert, Pinar; Irmak, Ilim; Yuksel, Aycan Akbas; Sekibag, Yonca; Toprak, Oya Baydar; Azak, Emel; Mulamahmutoglu, Sait; Cuhadaroglu, Caglar; Demirel, Aslihan; Kerget, Bugra; Ketencioglu, Burcu Baran; Ozger, Hasan Selcuk; Ozkan, Gulcihan; Ture, Zeynep; Ergan, Begum; Oguz, Vildan Avkan; Kilinc, Oguz; Ercelik, Merve; Ciftci, Tansu Ulukavak; Alici, Ozlem; Temel, Esra Nurlu; Ataoglu, Ozlem; Aydin, Asena; Bahcetepe, Dilek Cetiner; Gullu, Yusuf Taha; Fakili, Fusun; Deveci, Figen; Kose, Neslihan; Tor, Muge Meltem; Gunluoglu, Gulsah; Altin, Sedat; Turgut, Teyfik; Tuna, Tibel; Ozturk, Onder; Dikensoy, Oner; Gulhan, Pinar Yildiz; Basyigit, Ilknur; Boyaci, Hasim; Oguzulgen, I. Kivilcim; Borekci, Sermin; Gemicioglu, Bilun; Bayraktar, Firat; Elbek, Osman; Hanta, Ismail; Okur, Hacer Kuzu; Sagcan, Gulseren; Uzun, Oguz; Akgun, Metin; Altinisik, Goksel; Dursun, Berna; Edis, Ebru Cakir; Gulhan, Erkmen; Eyuboglu, Fusun Oner; Gultekin, Okkes; Havlucu, Yavuz; Ozkan, Metin; Coskun, Aysin Sakar; Sayiner, Abdullah; Kalyoncu, Ali Fuat; Itil, Oya; Bayram, HasanThe COVID-19-related death rate varies between countries and is affected by various risk factors. This multi-center registry study was designed to evaluate the mortality rate and the related risk factors in Turkey. We retrospectively evaluated 1500 adults with COVID-19 from 26 centers who were hospitalized between March 11 and July 31, 2020. In the study group, 1041 and 459 cases were diagnosed as definite and highly probable cases, respectively. There were 993 PCR-positive cases (66.2\%). Among all cases, 1144 (76.3\%) were diagnosed with non-severe pneumonia, whereas 212 (14.1\%) had severe pneumonia. Death occurred in 67 patients, corresponding to a mortality rate of 4.5\% (95\% CI:3.5-5.6). The univariate analysis demonstrated that various factors, including male sex, age >= 65 years and the presence of dyspnea or confusion, malignity, chronic obstructive lung disease, interstitial lung disease, immunosuppressive conditions, severe pneumonia, multiorgan dysfunction, and sepsis, were positively associated with mortality. Favipiravir, hydroxychloroquine and azithromycin were not associated with survival. Following multivariate analysis, male sex, severe pneumonia, multiorgan dysfunction, malignancy, sepsis and interstitial lung diseases were found to be independent risk factors for mortality. Among the biomarkers, procalcitonin levels on the 3rd-5th days of admission showed the strongest associations with mortality (OR: 6.18Item The association of antiviral drugs with COVID-19 morbidity: The retrospective analysis of a nationwide COVID-19 cohort(FRONTIERS MEDIA SA, 2022-01-01) Babayigit, Cenk; Kokturk, Nurdan; Kul, Seval; Cetinkaya, Pelin Duru; Nayci, Sibel Atis; Baris, Serap Argun; Karcioglu, Oguz; Aysert, Pinar; Irmak, Ilim; Yuksel, Aycan Akbas; Sekibag, Yonca; Toprak, Oya Baydar; Azak, Emel; Mulamahmutoglu, Sait; Cuhadaroglu, Caglar; Demirel, Aslihan; Kerget, Bugra; Ketencioglu, Burcu Baran; Ozger, Hasan Selcuk; Ozkan, Gulcihan; Ture, Zeynep; Ergan, Begum; Oguz, Vildan Avkan; Kilinc, Oguz; Ercelik, Merve; Ciftci, Tansu Ulukavak; Alici, Ozlem; Temel, Esra Nurlu; Ataoglu, Ozlem; Aydin, Asena; Bahcetepe, Dilek Cetiner; Gullu, Yusuf Taha; Fakili, Fusun; Deveci, Figen; Kose, Neslihan; Tor, Muge Meltem; Gunluoglu, Gulsah; Altin, Sedat; Turgut, Teyfik; Tuna, Tibel; Ozturk, Onder; Dikensoy, Oner; Gulhan, Pinar Yildiz; Basyigit, Ilknur; Boyaci, Hasim; Oguzulgen, Ipek Kivilcim; Borekci, Sermin; Gemicioglu, Bilun; Bayraktar, Firat; Elbek, Osman; Hanta, Ismail; Kuzu Okur, Hacer; Sagcan, Gulseren; Uzun, Oguz; Akgun, Metin; Altinisik, Goksel; Dursun, Berna; Edis, Ebru Cakir; Gulhan, Erkmen; Eyuboglu, Fusun Oner; Gultekin, Okkes; Havlucu, Yavuz; Ozkan, Metin; Coskun, Aysin; Sayiner, Abdullah; Kalyoncu, A. Fuat; Itil, Oya; Bayram, HasanBackground and objectivesAlthough several repurposed antiviral drugs have been used for the treatment of COVID-19, only a few such as remdesivir and molnupiravir have shown promising effects. The objectives of our study were to investigate the association of repurposed antiviral drugs with COVID-19 morbidity. MethodsPatients admitted to 26 different hospitals located in 16 different provinces between March 11-July 18, 2020, were enrolled. Case definition was based on WHO criteria. Patients were managed according to the guidelines by Scientific Board of Ministry of Health of Turkey. Primary outcomes were length of hospitalization, intensive care unit (ICU) requirement, and intubation. ResultsWe retrospectively evaluated 1,472 COVID-19 adult patientsItem Relationship between serum sialic acid levels and prolidase activity with airflow obstruction in patients with COPD(LIPPINCOTT WILLIAMS \& WILKINS, 2022-01-01) Uysal, Pelin; Teksoz, Duygu; Aksan, Hulya; Durmus, Sinem; Uslu-Besli, Lebriz; Cuhadaroglu, Caglar; Gelisgen, Remise; Simsek, Gonul; Uzun, HafizeOur aim in this study was to evaluate the prognostic significance of sialic acid (SA) and prolidase activity and to evaluate the association between airflow obstruction severity and these parameters in chronic obstructive pulmonary disease (COPD) patients. Ninety-four patients (84 M, 10 F) and 34 healthy subjects (19 M, 15 F) were included into the study. COPD staging was performed to COPD patients according to new global initiative for chronic obstructive lung disease criteria which includes pulmonary function tests, symptoms and hospitalizationItem Evaluation of the relationship between serum ghrelin levels and cancer cachexia in patients with locally advanced nonsmall-cell lung cancer treated with chemoradiotherapy(WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2020-01-01) Uysal, Pelin; Afsar, Cigdem Usul; Sozer, Volkan; Inanc, Berrin; Agaoglu, Fulya; Gural, Zeynep; Fazlioglu, Nevin Gural; Cuhadaroglu, Caglar; Uzun, HafizeBackground: Ghrelin plays a role in mechanisms related to cancer progression - including cell proliferation, invasion and migration, and resistance to apoptosis in the cell lines from several cancers. We investigated the role of ghrelin levels in cancer cachexia-anorexia in patients with locally advanced nonsmall-cell lung cancer (NSCLC) treated with chemoradiotherapy (CRT). Materials and Methods: This study involved 84 NSCLC patients who had received concomitant CRT. Blood ghrelin levels were compared before and 3 months after CRT. Meanwhile, changes in body weight of the patients were also investigated with changes in ghrelin levels before and after CRT. Results: Ghrelin levels were significantly decreased in line with changes in patients' weights in patients receiving CRT (P < 0.001). Serum albumin levels and inflammatory-nutritional index were significantly decreased after radiotherapy (RT) (3.01 0.40 g/dL, 0.38 +/- 0.20) when compared with its baseline levels (3.40 +/- 0.55 g/dL,P < 0.001Item Evaluation of plasma antimicrobial peptide LL-37 and nuclear factor-kappaB levels in stable chronic obstructive pulmonary disease(DOVE MEDICAL PRESS LTD, 2019-01-01) Uysal, Pelin; Simsek, Gonul; Durmus, Sinem; Sozer, Volkan; Aksan, Hulya; Yurt, Sibel; Cuhadaroglu, Caglar; Kosar, Filiz; Gelisgen, Remise; Uzun, HafizeBackground: Antimicrobial peptides are effectors of host defence against infection and inflammation and can encourage wound repair. Objectives: The objectives of this study were to investigate the plasma antimicrobial peptide LL-37 and nuclear factor-kappaB (NF-kappa B) levels in patients with stable COPD compared with a control group and to highlight their importance in immune inflammation. Methods: One hundred and thirty-eight stable COPD patients and 33 control subjects were enrolled in the study. The COPD patients were classified into four groups based on FEV1 (groups I-IV) and also divided into ``low-risk and high-risk{''} groups (groups A-B {[}low risk], C-D {[}high risk]). Results: Plasma LL-37 levels were significantly lower while plasma NF-kappa B levels of the COPD patients were significantly higher than those of the control subjects (P<0.001, both). LL-37 levels were significantly lower in group IV than in groups I, II, and III (P<0.01, all). NF-kappa B levels were significantly higher in groups III and IV than in groups I and II (P<0.05, both). There was a positive correlation between FEV1 and FEV1/FVC in all COPD patients (r=0.742, P<0.001) and in group D (r=0.741, P<0.001). Furthermore, there was an inverse correlation between LL-37 and NF-kappa B in both the groups C (r=-0.566, P<0.001) and D (r=-0.694, P<0.001) and group C+ D combined (r=-0.593, P<0.001). Furthermore, in group C, LL-37 and FEV1 were positively correlated (r=0.633, P<0.001). Conclusion: Our study indicated that plasma LL-37 and NF-kappa B may play an important role in chronic immune inflammation. Decreased LL-37 levels may be particularly high risk for patients in stage IV disease. The role of LL-37 as a target for treatment of the immune system and COPD must be widely evaluated.Item Role of leukotriene antagonists and antihistamines in treatment of allergic rhinitis and asthma comorbidity(DERGIPARK AKAD, 2013-01-01) Baccioglu, Ayse; Yorgancioglu, Arzu; Cingi, Cemal; Cuhadaroglu, CaglarLeukotriene receptor antagonists and antihistamines are efficient in reducing symptoms of allergic rhinitis and asthma when used alone or in combination. In patients with allergic rhinitis, H1-antihistamines prevent and relieve the sneezing, itching, rhinorrhea, and nasal congestion that characterize the early and the late response to allergen. H1-antihistamines are not medications of choice in asthmatic patients, but controlling rhinitis will improve asthma concomitantly. Leukotriene antagonist such as montelukast may be an alternative treatment for mild persistent asthma as monotherapy where inhaled corticosteroid cannot be administered or alternative to long-acting beta agonist as an add-on therapy to ICS for moderate to severe persistent asthma. Although montelukast is an effective drug in allergic rhinitis indicated as monotherapy, but widely recommended as adjunct to antihistamine or intranasal corticosteroid. Antileukotriene agents are also widely used in the treatment of pediatric asthma. In children, maintenance treatment with inhaled corticosteroids in pure episodic ( viral) wheeze was ineffective, but maintenance as well as intermittent montelukast was shown to have an efficient role in both episodic and multi trigger wheeze. Furthermore, their advantage to inhaled corticosteroids is that leukotriene receptor antagonists do not affect short-term lower leg growth rate in prepubertal children.Item Importance of oxidative stress in the evaluation of acute pulmonary embolism severity(BMC, 2022-01-01) Sagcan, Gulseren; Konukoglu, Dildar; Uzun, Hafize; Arseven, Orhan; Okumus, Gulfer; Cuhadaroglu, CaglarBackground Pulmonary embolism (PE) is a common and potentially life-threatening disorder. Our study was aimed to investigate whether oxidative stress markers can be used as clinical markers in the evaluation of acute PE (APE) severity. Methods 47 patients with objectively documented diagnosis of APE were recorded. Of these patients, 14 had low-risk PE, 16 had moderate-risk PE, and 17 had high-risk PE. 21 healthy subjects were also enrolled in this study. Ischemia-modified albumin (IMA), prooxidants-antioxidants balance (PAB), advanced protein oxidation products (AOPPs), and ferric reducing antioxidant power (FRAP) were measured as oxidative stress parameters to evaluate the role of oxidative stress. Results In the low-risk and moderate-risk APE groups, AOPPs and PAB levels were significantly higher and FRAP levels were significantly lower than those in the control group. AOPPs and IMA levels in the patients with high-risk PE were significantly higher than those in both the low-risk and moderate-risk APE patients. There was a significant correlation between levels of AOPPs and the levels of both IMA (r: 0.462, p < 0.001) and PAB (r:0.378, p < 0.005). Serum FRAP levels were negatively correlated with PAB (r:- 0.683, p < 0.001) and AOPPs levels (r:- 0,384, p < 0.001). There was also a significant positive correlation between the serum IMA and PAB levels. Conclusions We clearly demonstrated that reactive oxygen species formation is significantly enhanced in APE. IMA and AOPPs may be used as clinical markers in the evaluation of APE severity in clinical practice. However, further studies with larger patient populations and longer follow-up periods are required to confirm the mechanisms underlying these findings.Item Burden of community-acquired pneumonia in adults over 18y of age(TAYLOR \& FRANCIS INC, 2017-01-01) Kosar, Filiz; Alici, Devrim Emel; Hacibedel, Basak; Yigitbas, Burcu Arpinar; Golabi, Pejman; Cuhadaroglu, CaglarThis study aimed to determine the economic burden and affecting factors in adult community-acquired pneumonia (CAP) patients (>= 18years) by retrospectively evaluating the data of 2 centers in Istanbul province, Turkey. Data of outpatients and inpatients with CAP from January 2013 through June 2014 were evaluated. The numbers of laboratory analyses, imaging, hospitalization days, and specialist visits were multiplied by the relevant unit costs and the costs of the relevant items per patient were obtained. Total medication costs were calculated according to the duration of use and dosage. The mean age was 61.56 +/- 17.87y for the inpatients (n = 211