Browsing by Author "Caklili, Ozge Telci"

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    The Influence of On-pump Versus Off-pump Surgery on Short- and Medium-term Postoperative Coronary Flow Reserve After Coronary Artery Bypass Grafting
    (2016) Ozulku, Mehmet; Caliskan, Mustafa; Saba, Tonguc; Aksu, Feyza; Ciftci, Ozgur; Gullu, Hakan; Guven, Aytekin; Kostek, Osman; Caklili, Ozge Telci; Aslamaci, Sait; 0000-0001-7566-5427; 0000-0002-9635-6313; 0000-0002-1901-5603; 27269474; AAT-7733-2020; AAG-8233-2020; AAA-3604-2019; AAJ-8546-2021
    Background Although several clinical trials have compared surgical outcomes between off-pump and on-pump coronary artery bypass grafting (CABG), whether there is a difference in the early- and medium-term postoperative coronary microvascular functions is not fully understood. We compared short- and medium-term coronary microvascular function after off-pump and on-pump CABG. Methods A prospective study of patients undergoing off-pump and on-pump CABG. Eighty-two patients scheduled for CABG were recruited: 38 underwent off-pump surgery and 44 on-pump surgery. Each participant's coronary flow reserve (CFR) and diastolic function were measured with transthoracic Doppler echocardiography six and 12 months after surgery. Results Baseline and hyperaemic diastolic peak flow velocity in the left anterior descending artery were similar in both groups, as was CFR (2.22 +/- 0.66) in the off-pump group compared with (2.13 +/- 0.61) in the on-pump group, (P = 0.54). Coronary flow reserve was significantly and inversely correlated with high sensitivity C-reactive protein concentration (r = -0.416; P < 0.001) and positively correlated with mitral E/ A-wave velocity ratio (r = 0.247; P = 0.02). Stepwise linear regression analysis revealed that only high sensitivity C-reactive protein concentration was independently correlated with CFR (beta = -0.272, P = 0.02). Conclusions Heart-lung bypass technique had no medium-term influence on the coronary microcirculation, despite a possible initial unfavourable effect. Serum hs-CRP concentration was an independent predictor of medium-term coronary microvascular dysfunction.
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    Previous Gestational Diabetes History is Associated with Impaired Coronary Flow Reserve
    (2015) Caliskan, Mustafa; Turan, Yasar; Caliskan, Zuhal; Gullu, Hakan; Ciftci, Faika Ceylan; Avci, Enver; Duran, Cevdet; Kostek, Osman; Caklili, Ozge Telci; Koca, Harun; Kulaksizoglu, Mustafa; 0000-0003-2579-9755; 26555575; IXD-5147-2023
    Background Gestational diabetes mellitus (GDM) is a prediabetic state that is known to increase the risk of cardiovascular diseases. We have investigated coronary flow velocity reserve (CFVR) and epicardial fat thickness (EFT), and left ventricular diastolic function in patients with a history of previous GDM (p-GDM). Methods Ninety-three women with GDM history and 95 healthy women without GDM history were recruited. We used transthoracic Doppler echocardiography to assess CFVR, EFT, and left ventricular diastolic function. Insulin resistance of each subject was assessed with homeostasis model assessment insulin resistance (HOMA-IR). Hemoglobin A1c and high-sensitivity C-reactive protein (hsCRP) were also measured in all patients. Results CFVR values were significantly lower (2.34 +/- 0.39 versus 2.80 +/- 0.24, p<0.001) and EFT values were significantly higher in patients with p-GDM than the control group (5.5 +/- 1.3 versus 4.3 +/- 1.1, p<0.001). E/E' ratio (7.21 +/- 1.77 versus 6.53 +/- 1.38, p = 0.003), hemoglobin A1c (5.2 +/- 0.4 and 5.0 +/- 0.3, p = 0.001), HOMA-IR (2.8 +/- 1.4 versus 1.7 +/- 0.9, p = 0.04), and hsCRP levels were significantly higher in the p-GDM group than the control group. Multivariate analysis revealed that gestational diabetes history is independently associated with CFVR. Conclusion Women with a GDM history may be at more risk regarding coronary microvascular dysfunction compared to the healthy ones.