Researcher:
Çaltı, Hatice Kant

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Doctor

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Hatice Kant

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Çaltı

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Çaltı, Hatice Kant

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2020 - 20214

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    Immature platelet fraction: Is a novel early predictive marker for disease severity in patients with Covid-19 pneumonia?
    (De Gruyter Open Ltd, 2021) Tasdemir, Z.A.; Palaoğlu, K.E.; N/A; İncir, Said; Komesli, Zeynep; Baygül, Arzu Eden; Çaltı, Hatice Kant; Kapmaz, Mahir; Tekin, Süda; Kılıç, Alparslan; Dağel, Tuncay; Okan, Ayşe; Somay, Kayra; Akpınar, Timur Selçuk; Doctor; Doctor; Faculty Member; Doctor; Doctor; Doctor; Doctor; Doctor; Doctor; Doctor; Faculty Member; N/A; N/A; School of Medicine; N/A; N/A; N/A; N/A; N/A; N/A; N/A; School of Medicine; Koç University Hospital; Koç University Hospital; N/A; Koç University Hospital; Koç University Hospital; Koç University Hospital; Koç University Hospital; Koç University Hospital; Koç University Hospital; Koç University Hospital; N/A; 175430; N/A; 272290; N/A; N/A; 42146; N/A; N/A; N/A; N/A; 216646
    Objectives : In many diseases, immature platelet fraction (IPF%) is related to coagulopathy and poor outcome. This study aimed to investigate the predictive value of IPF% for the severity of pneumonia in patients with Coronavirus Disease 2019 (COVID-19). Methods : A total of 154 patients with COVID‐19 infections were included. The patients were divided into two groups according to the severity of pneumonia (severe and non-severe) regarding their oxygen demand. Results : Given laboratory parameters, the median IPF% was significantly higher in the severe group (11.9 vs. 3.9%, p<0.001). Mean platelet volume (p<0.001), platelet-large cell ratio (p=0.001), platelet distribution width (p=0.001), D-Dimer (p<0.001), INR (p=0.003), and aPTT (p=0.007) were also found to be significantly higher in the severe group. Moreover, IPF (p=0.014, Odds ratio = 2.000, 95%CI: 1.149-3.482) was an independent predictor for the severity. The curve value from receiver operating characteristics was 0.879 (p<0.001, 95%CI: 0.784-0.943) for determining the severity of pneumonia. IPF% had a sensitivity and specificity value of 69.5 and 92.4% to detect the disease’s severity. Conclusions : IPF% is an independent predictor for the severity of COVID-19 pneumonia. Assessment of IPF% may both help to early determine high-risk patients with COVID-19 and to alert the physicians. / Amaç : Pek çok hastalıkta, immatür platelet fraksiyonu (%İPF), koagülopati ve kötü sonuçla ilişkilidir. Bu çalışma, Coronavirus Hastalığı 2019 (COVID-19) olan hastalarda pnömoni şiddeti için %İPF’nin prediktif değerini araştırmayı amaçladı. Yöntem : COVID-19 enfeksiyonu olan toplam 154 hasta dahil edildi. Hastalar, oksijen ihtiyaçları göz önüne alınarak pnömoni şiddetine göre (ağır ve ağır olmayan) iki gruba ayrıldı. Bulgular : Laboratuvar parametrelerine bakıldığında, medyan İPF yüzdesi ağır grupta anlamlı olarak daha yüksekti (%11.9′a karşı %3.9, p<0.001). Ortalama trombosit hacmi (p<0.001), trombosit-büyük hücre oranı (p=0.001), trombosit dağılım genişliği (p=0.001), D-Dimer (p<0.001), İNR (p=0.003) ve aPTT (p=0.007) ağır grupta anlamlı olarak daha yüksek bulundu. Ayrıca, İPF (p=0.014, Odds oranı = 2.000, %95 CI: 1.149-3.482) hastalık şiddeti için bağımsız bir öngördürücü olarak bulundu. Algılayıcı işletim eğrisinden gelen eğri değeri, pnömoni şiddetini belirlemek için 0.879 (p<0.001, %95 CI: 0.784-0.943) idi. İPF, hastalığın şiddetini saptamak için %69.5′lik duyarlılık ve %92.4′lük özgüllük değerine sahipti. Sonuç : İPF, COVID-19 pnömonisinin şiddeti için bağımsız bir öngörücüdür. %İPF’nin değerlendirilmesi, hem COVID-19′lu yüksek riskli hastaları erken belirlemeye hem de hekimleri uyarmaya yardımcı olabilir.
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    Can immature granulocyte count and hemogram indices begood predictors of urinary tract infection in children?
    (Association of Clinical Biochemistry Specialists, 2021) Palaoğlu, Kerim Erhan; N/A; N/A; N/A; N/A; N/A; İncir, Said; Taşdemir, Mehmet; Çaltı, Hatice Kant; Baygül, Arzu Eden; Bilge, İlmay; Faculty Member; Faculty Member; Doctor; Faculty Member; Faculty Member; School of Medicine; School of Medicine; N/A; School of Medicine; School of Medicine; N/A; N/A; Koç University Hospital; N/A; N/A; 175430; 175867; N/A; 272290; 198907
    Objectives: A left shift in a complete blood count (CBC) indicates the presence of immature granulocytes (IGs), and an elevated count is associated with a bacterial infection. The aim of this study was to evaluate the role of the IG count and inflammatory CBC parameters and indices in children with a urinary tract infection (UTI). Methods: In this retrospective study, 55 children with a UTI (patient group) and 47 children with no infection matched for age and sex (control group) were enrolled. The symptoms, clinical findings, CBC parameters, and platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR), systemic immune-inflammatory index (SII), and urinalysis findings were recorded. The C-reactive protein (CRP) level, urine culture results, and radiological data for the UTI group were also noted and analyzed. Results: The IG count; leukocyte, platelet, and neutrophil counts; and the CRP value were higher in the patient group than in the control group (p=0.001, 0.001, 0.035, 0.001, and < 0.001, respectively). The NLR, PLR, SII, and mean platelet volume were not significantly different between the groups. The median hemoglobin level was significantly lower in the patient group than in the control group (10.9 g/dL vs. 12.2 g/dL; p=0.004). The area under the curve values for CRP, and counts of IG, leukocytes, and neutrophils were 0.851 (95% confidence interval [CI]: 0.761-0.917), 0.736 (95% CI: 0.633-0.823), 0.714 (95% CI: 0.609-0.804), and 0.670 (95% CI: 0.564-0.765), respectively. Conclusion: The IG count is an easily obtained measurement that can be utilized alongside the CRP value and other indicators to create better predictive value in the management of UTI.
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    The role of immature granulocytes and inflammatoryhemogram indices in the inflammation
    (Association of Clinical Biochemistry Specialists, 2020) Palaoğlu, Kerim Erhan; N/A; N/A; İncir, Said; Çaltı, Hatice Kant; Faculty Member; Doctor; School of Medicine; N/A; Koç University Hospital; Koç University Hospital; 175430; N/A
    Objectives: In this retrospective study, we aimed to assess the role of immature granulocyte percentage (IG%), inflammatory complete blood count (CBC) parameters and indices in investigating the severity of inflammation, to evaluate their correlation, and to determine their predictive ability in classifying inflammation. Methods: We obtained hematological and biochemical data of the 161 outpatients for this study. Patients were assigned to three groups according to their C-reactive protein (CRP) levels. Group I had a CRp-value of 9mg/L (clinically significant inflammatory group)(n=44). The between-group differences were evaluated concerning sex, age, CRP, procalcitonin, IG%, CBC parameters and indices, including Platelet-to-Lymphocyte Ratio (PLR), Neutrophil-to-Lymphocyte Ratio (NLR) and Systemic Immune-Inflammatory Index (SII). Results: In Group II, the levels of CRP (p0.2 were 75.3% and 52.5%, respectively. Conclusion: The findings obtained in this study suggest that to detect the severity of inflammation, it would be more reliable to evaluate the combination of CBC parameters with biochemical markers instead of looking at a single one.
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    PublicationOpen Access
    Immature platelet fraction: is a novel early predictive marker for disease severity in patients with Covid-19 pneumonia?
    (De Gruyter, 2021) Taşdemir, Zeynep Atam; Paloğlu, Kerim Erhan; İncir, Said; Komesli, Zeynep; Baygül, Arzu Eden; Çaltı, Hatice Kant; Kapmaz, Mahir; Tekin, Süda; Kılıç, Alparslan; Dağel, Tuncay; Okan, Ayşe; Somay, Kayra; Akpınar, Timur Selçuk; Faculty Member; Doctor; Doctor; Faculty Member; School of Medicine; Koç University Hospital; N/A; N/A; 272290; N/A; N/A; 42146; N/A; N/A; N/A; N/A; N/A
    Objectives: in many diseases, immature platelet fraction (IPF%) is related to coagulopathy and poor outcome. This study aimed to investigate the predictive value of IPF% for the severity of pneumonia in patients with Coronavirus Disease 2019 (COVID-19). Methods: a total of 154 patients with COVID-19 infections were included. The patients were divided into two groups according to the severity of pneumonia (severe and nonsevere) regarding their oxygen demand. Results: given laboratory parameters, the median IPF% was significantly higher in the severe group (11.9 vs. 3.9%, p<0.001). Mean platelet volume (p<0.001), platelet-large cell ratio (p=0.001), platelet distribution width (p=0.001), D-Dimer (p<0.001), INR (p=0.003), and aPTT (p=0.007) were also found to be significantly higher in the severe group. Moreover, IPF (p=0.014, Odds ratio = 2.000, 95%CI: 1.149-3.482) was an independent predictor for the severity. The curve value from receiver operating characteristics was 0.879 (p<0.001, 95%CI: 0.784-0.943) for determining the severity of pneumonia. IPF% had a sensitivity and specificity value of 69.5 and 92.4% to detect the disease's severity. Conclusions: IPF% is an independent predictor for the severity of COVID-19 pneumonia. Assessment of IPF% may both help to early determine high-risk patients with COVID-19 and to alert the physicians. / Amaç: pek çok hastalıkta, immatür platelet fraksiyonu (%İPF), koagülopati ve kötü sonuçla ilişkilidir. Bu çalışma, Coronavirus Hastalığı 2019 (COVID-19) olan hastalarda pnömoni şiddeti için %İPF’nin prediktif değerini araştırmayı amaçladı. Yöntem: COVID-19 enfeksiyonu olan toplam 154 hasta dahil edildi. Hastalar, oksijen ihtiyaçları göz önüne alınarak pnömoni şiddetine göre (ağır ve ağır olmayan) iki gruba ayrıldı. Bulgular: laboratuvar parametrelerine bakıldığında, medyan İPF yüzdesi ağır grupta anlamlı olarak daha yüksekti (% 11.9?a karşı %3.9, p<0.001). Ortalama trombosit hacmi (p<0.001), trombosit-büyük hücre oranı (p=0.001), trombosit dağılım genişliği (p=0.001), D-Dimer (p<0.001),İNR (p=0.003) ve aPTT (p=0.007) ağır grupta anlamlı olarak daha yüksek bulundu. Ayrıca, İPF (p=0.014, Odds oranı = 2.000, %95 CI: 1.149-3.482) hastalık şiddeti için bağımsız bir öngördürücü olarak bulundu. Algılayıcı işletim eğrisinden gelen eğri değeri, pnömoni şiddetini belirlemek için 0.879 (p<0.001, % 95 CI: 0.784-0.943) idi. İPF, hastalığın şiddetini saptamak için %69.5?lik duyarlılık ve %92.4?lük özgüllük değerine sahipti. Sonuç: İPF, COVID-19 pnömonisinin şiddeti için bağımsız bir öngörücüdür. %İPF’nin değerlendirilmesi, hem COVID-19? lu yüksek riskli hastaları erken belirlemeye hem de hekimleri uyarmaya yardımcı olabilir.