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Publication Metadata only Interaction between cardioverter defibrillator and enhanced external counterpulsation device(2013) Çelik, Ömer Faruk; Aydin, Alper; Yılmazer, Mustafa Serdar; Sarıgül, Nedim Umutay; Gürol, Tayfun; Daǧdeviren, Bahadïr; Çelik, Ömer Faruk, Department of Cardiology, Training and Research Hospital, Istanbul, Turkey; Aydin, Alper, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Yılmazer, Mustafa Serdar, Department of Cardiology, T.C. Maltepe Universitesi Tip Fakültesi, Istanbul, Turkey; Sarıgül, Nedim Umutay, Department of Cardiology, T.C. Maltepe Universitesi Tip Fakültesi, Istanbul, Turkey; Gürol, Tayfun, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Daǧdeviren, Bahadïr, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, TurkeyBackground Potential interference between implanted cardiac devices and other medical instruments is an important concern. Therefore, we aimed to investigate the possible device interaction between implantable cardioverter defibrillators (ICDs) and external enhanced counterpulsation (EECP) treatment. Methods Twenty-one patients with an implanted ICD or cardiac resynchronization therapy with defibrillator (CRT-D) were enrolled into the study. EECP had applied as two sessions of 5 minutes. Data from device interrogations before and after the first EECP session and during second EECP session were recorded and analyzed for signs of possible device interaction. Results There was no sign of inappropriate sensing or noise during EECP session. There was no difference regarding electrode impedance, pacing, and sensing values before and after EECP. There was a statistically significant difference regarding heart rates during EECP therapy between rate response off and on modes (68.69 ± 5.92 beats/min and 90.32 ± 11.05 beats/min, respectively P = 0,001). In four patients with CRT-D and unipolar left ventricular pacing, counterpulsation could not be done because of QRS sensing problems. Conclusions EECP seems to be a safe treatment modality in patients with implanted ICD and CRT-D devices. It should be kept in mind that in those patients with CRT-D, rate responsive mode is on, inappropriate sinus tachycardia can be seen during EECP therapy. Also in patients with CRT-D using a unipolar sensing mode, problems of QRS complex sensing by the EECP may occur and, therefore, this effects synchronization and success of EECP therapy. ©2013, The Authors. Journal compilation ©2013 Wiley Periodicals, Inc. © 2013 Elsevier B.V., All rights reserved.Publication Metadata only Coronary aneurysm mimicking a five chamber heart(Oxford University Press, 2014) Aydin, Alper; Gürol, Tayfun; Soylu, Özer; Daǧdeviren, Bahadïr; Aydin, Alper, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Gürol, Tayfun, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Soylu, Özer, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Daǧdeviren, Bahadïr, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey[No abstract available]Publication Metadata only The morphologic and functional features of LAD myocardial bridging at multi-detector computed tomography coronary angiography: Correlation with coronary artery disease(Turkish Society of Cardiology [email protected], 2015) Aydin, Alper; Çubuk, Rahmi; Atasoy, Mehmet Mahir; Gürol, Tayfun; Soylu, Özer; Daʇdeviren, Bahadir; Aydin, Alper, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Çubuk, Rahmi, Department of Radiology, T.C. Maltepe Universitesi, Istanbul, Turkey; Atasoy, Mehmet Mahir, Department of Radiology, T.C. Maltepe Universitesi, Istanbul, Turkey; Gürol, Tayfun, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Soylu, Özer, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Daʇdeviren, Bahadir, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, TurkeyObjectives: The aim of this study was to retrospectively evaluate the morphologic and functional features of myocardial bridging (MB) and to investigate the impact of morphologic features on presence of atherosclerosis with multi-detector computed tomography (MDCT) coronary angiography. Study design: The study population consisted of 191 consecutive patients. Besides coronary lesions, morphologic features of the MB (depth, length and the distance of the tunneled artery from the left coronary ostium) were analyzed. Results: MDCT detected MB on left anterior descending artery in 41 patients (21.5%). The prevalence of atherosclerotic plaques proximal to the MB of LAD was 49% (20/41). There was a statistically significant correlation between percentage of systolic compression and depth of the tunneled segment (r=0.538, p<0.01). There was no relation between distance of the tunneled segment from the ostium and degree of systolic compression. No significant correlation was found between percentage of systolic compression and length of the tunneled segment (r=0.058, p=0.721). Morphologic features of MB were not related to the presence of CAD in proximal segments. Conclusion: MDCT coronary angiography depicts the morphologic and functional features of the MB in detail. The depth of MB segment was correlated with systolic compression of MB. There was no relationship between distance of the tunneled segment from the ostium and systolic compression. © 2015 Elsevier B.V., All rights reserved.Publication Metadata only Renal Transplantation after Thoracic Endovascular Repair of Type B Aortic Dissection - A Case Report(Elsevier Inc., 2015) Eroǧlu, Atilla; Turunç, Volkan; Şener, Tufan; Tabandeh, Babek; Oruʇ, Taner; Gürol, Tayfun; Aydin, Alper; Güven, Bahtisen; Eroǧlu, Atilla, Organ Transplantation Center, Medical Park Hospital, Bursa, Turkey; Turunç, Volkan, Organ Transplantation Center, Medical Park Hospital, Bursa, Turkey; Şener, Tufan, Department of Cardiovascular Surgery, Medical Park Hospital, Bursa, Turkey; Tabandeh, Babek, Department of General Surgery, Bahçeşehir Üniversitesi, Istanbul, Turkey; Oruʇ, Taner, Department of General Surgery, Bahçeşehir Üniversitesi, Istanbul, Turkey; Gürol, Tayfun, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Aydin, Alper, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Güven, Bahtisen, Organ Transplantation Center, Medical Park Hospital, Bursa, TurkeyBecause of the strong association between uremia and atherosclerosis, incidence of aortic aneurysms is increasing among renal failure patients awaiting renal transplantation (RT). Successful RTs have been performed in these patients after surgical repair of the aneurysms. Since Parodi et al introduced endovascular aortic aneurysm repair (EVAR) in patients with high risk for conventional surgery, a new era has begun. The 1st successful RT after EVAR was published in 2001. Herein we report the 1st successful RT after thoracic EVAR (TEVAR) reported to date. We performed RT in a 54-year-old man with end-stage renal failure due to diabetic nephropathy, who had undergone TEVAR for type B aortic dissection (TBAD) 6 months earlier. The postoperative period was uneventful and the patient was discharged from the hospital at postoperative day 6 with a serum creatinine of 0.9 mg/dL. At follow-up examination at postoperative 6 months, graft function was stable. Because of its advantages over open surgery, including low mortality and morbidity, TEVAR is becoming more common among renal failure patients with thoracic aortic aneurysms and TBAD. Our case shows that successful RT can be performed in renal failure patients who have undergone TEVAR. © 2021 Elsevier B.V., All rights reserved.Publication Metadata only Femoro-femoral Bypass for Graft Salvage in a Renal Transplant Patient with Aorto-iliac Occlusion: A Case Report(Elsevier Inc., 2015) Turunç, Volkan; Eroǧlu, Atilla; Tabandeh, Babek; Şarkişlali, Kamil Umut; Şener, Tufan; Aydin, Alper; Gürol, Tayfun; Oruʇ, Taner; Turunç, Volkan, Organ Transplantation Center, Medical Park Hospital, Bursa, Turkey; Eroǧlu, Atilla, Organ Transplantation Center, Medical Park Hospital, Bursa, Turkey; Tabandeh, Babek, Department of General Surgery, Bahçeşehir Üniversitesi, Istanbul, Turkey; Şarkişlali, Kamil Umut, Department of Cardiovascular Surgery, Medical Park Hospital, Bursa, Turkey; Şener, Tufan, Department of Cardiovascular Surgery, Medical Park Hospital, Bursa, Turkey; Aydin, Alper, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Gürol, Tayfun, Department of Cardiology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Oruʇ, Taner, Department of General Surgery, Bahçeşehir Üniversitesi, Istanbul, TurkeyAs vascular diseases are becoming more prevalent among renal transplant recipients, complications related to renal artery anastomosis are likely to occur more often. Here we report a renal transplant patient treated with femoro-femoral bypass who had renal allograft dysfunction due to aorto-iliac occlusive disease (AIOD) proximal to renal artery anastomosis. We performed living donor renal transplantation in the left iliac fossa of a 41-year-old male. At post-transplant 30 months, he was admitted with hypertension, increase in serum creatinine, and claudication of his left leg. Doppler ultrasonography showed poor flow characteristics of the renal allograft. Total occlusion of the left common iliac artery was diagnosed on angiography. Since endovascular approach was unsuccessful, we performed right-to-left femoro-femoral bypass to provide retrograde blood flow to the renal allograft. The patient was discharged at postoperative day 3 with decreased serum creatinine, normal blood pressure, no claudication, and normal flow characteristics in Doppler ultrasonography. AIOD should be suspected in renal transplant patients in case of hypertension, allograft dysfunction, and ipsilateral leg ischemia. Femoro-femoral bypass is a safe surgical procedure that may be performed in patients who cannot be treated using an endovascular approach. © 2021 Elsevier B.V., All rights reserved.Publication Metadata only Intermittent symptomatic functional mitral regurgitation illustrated by two cases(Clinics Cardive Publishing (PTY)Ltd PO Box 1013, Durbanville, 7551, 2015) Aydin, Alper; Gürol, Tayfun; Soylu, Özer; Daǧdeviren, Bahadïr; Aydin, Alper, Bahçeşehir Üniversitesi, Istanbul, Turkey; Gürol, Tayfun, Bahçeşehir Üniversitesi, Istanbul, Turkey; Soylu, Özer, Bahçeşehir Üniversitesi, Istanbul, Turkey; Daǧdeviren, Bahadïr, Bahçeşehir Üniversitesi, Istanbul, TurkeyFunctional mitral regurgitation may have different haemodynamic consequences, clinical implications and treatment options, such as surgical or percutaneous interventions or implanting a pacemaker. Here we present two cases with haemodynamically significant intermittent functional mitral regurgitation as the underlying mechanism of heart failure. The cases underline the importance of a high index of suspicion in patients with intermittent heart failure, and a careful analysis of echocardiographic images with simultaneous ECG, in order to delineate systolic and diastolic mitral regurgitation. © 2017 Elsevier B.V., All rights reserved.Publication Open Access Safety of radial coronary angiography with uninterrupted direct-acting oral anticoagulant treatment(Turkish Society of Cardiology [email protected], 2019) Tuǧba Kemaloǧlu, K.; Gürol, Tayfun; Sarıgül, Nedim Umutay; Arslan, Utku; Kobegenova, Maryam; Aydin, Alper; Soylu, Özer; Daǧdeviren, Bahadïr; Tuǧba Kemaloǧlu, K., Bahçeşehir Üniversitesi, Istanbul, Turkey; Gürol, Tayfun, Bahçeşehir Üniversitesi, Istanbul, Turkey; Sarıgül, Nedim Umutay,; Arslan, Utku, Bahçeşehir Üniversitesi, Istanbul, Turkey; Kobegenova, Maryam, Bahçeşehir Üniversitesi, Istanbul, Turkey; Aydin, Alper, Bahçeşehir Üniversitesi, Istanbul, Turkey; Soylu, Özer, Bahçeşehir Üniversitesi, Istanbul, Turkey; Daǧdeviren, Bahadïr, Bahçeşehir Üniversitesi, Istanbul, TurkeyObjective: It is not known whether direct-acting oral anticoagulants (DOACs), such as dabigatran, apixaban, and rivaroxaban increase the risk of bleeding complications during or after coronary catheterization. The aim of this study was to investigate the safety of uninterrupted DOAC treatment during diagnostic radial coronary angiography (CAG). Methods: This study included 160 patients who underwent diagnostic radial cardiac catheterization. The 60 patients in the group who were using a DOAC (apixaban, rivaroxaban, or dabigatran) were enrolled in a Group A. Post-procedure results from patients in Group A were compared with those of an ageand sex-matched control group (Group B) that included 100 patients who underwent radial CAG who did not use a DOAC. Results: There was no significant difference in the procedure and compression times, creatinine level, or presence of hypertension, diabetes mellitus, smoking, alcohol use, vascular disease, or congestive heart failure between the 2 groups. During the 1 -month follow-up period, only 1 radial occlusion was registered in the control group (Group B). There was no case of a large hematoma (>5 cm or extending to the forearm), dissection, fistula, perforation, or compartment syndrome. Hematomas smaller than 5 cm were seen in 2 patients (1 in each group). No thrombotic events were observed during follow-up examinations. Conclusion: Performing radial CAG with uninterrupted DOAC treatment appears to carry no risk of increased early or short-term complications. The simple, uninterrupted DOAC strategy is comfortable, easy, and safe. © 2019 Elsevier B.V., All rights reserved.