Browsing by Author "Tuzcu, Volkan"
Now showing items 1-20 of 41
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Acute outcomes of three-dimensional mapping for fluoroscopy reduction in paediatric catheter ablation for supraventricular tachycardia
Anderson, Chris; Rahman, Maryam; Bradley, David J.; Breedlove, Kristen; Dick, Macdonald; Lapage, Martin J.; Martinez, Alaina R.; McNinch, Neil L.; Moore, Jeremy P.; Papagiannis, John; Razminia, Mansour; Shannon, Kevin M.; Shauver, Lisa M.; Tuzcu, Volkan; Clark, John M. (Cambridge University Press, 2021)Background: Catheter ablation is a safe and effective therapy for the treatment of supraventricular tachycardia in children. Current improvements in technology have allowed progressive reduction in radiation exposure ... -
Ani kardiyak ölümlerde moleküler otopsinin önemi
Şahin, Yavuz; Fedakar, Recep; Kök, Ertuğrul; Şen, Aşkın; Akdeniz, Celal; Tuzcu, Volkan; Demircan, Kadir (2016)Ani kardiyak ölümler, sağlıklı genç yaştaki kişilerdeki ölümlerin önemli bir nedenidir. Adli otopsi uygulamaları ile ani kardiyak ölümün nedeni sıklıkla saptanamamaktadır. Ölüm sonrası [post mortem] yapılan genetik testler ... -
Assessment of atrioventricular conduction following cryoablation of atrioventricular nodal reentrant tachycardia in children
Kıplapınar, Neslihan; Ergül, Yakup; Akdeniz, Celal; Saygı, Murat; Özyılmaz, İsa; Gül, Enes Elvin; Tuzcu, Volkan (Wiley-Blackwell, 2014)Background Early-onset transient atrioventricular block (AVB) is a rare occurrence following cryoablation of atrioventricular nodal reentrant tachycardia (AVNRT), despite lack of any AVB at the end of the procedure. The ... -
Brucella infection associated with complete atrioventricular block
Bilici, Meki; Demir, Fikri; Yılmazer Muhtar, Murat; Bozkurt, Fatma; Tuzcu, Volkan (Aves, 2016)Background: The clinical spectrum of Brucella infection is quite diverse and characterized by multi-system involvement. Patients present with myocarditis, endocarditis, or pericarditis. Infective endocarditis is the most ... -
Can flecainide totally eliminate bidirectional ventricular tachycardia in pediatric patients with Andersen-Tawil syndrome?
Ergül, Yakup; Özgür, Senem; Onan, Sertaç Hanedan; Tuzcu, Volkan (Turkish Society of Cardiology, 2018)Andersen-Tawil syndrome (ATS) is a disorder that causes episodes of muscle weakness (periodic paralysis), changes in heart rhythm, and developmental abnormalities. QT prolongation and ventricular arrhythmias, including ... -
Cardiac interventions in pregnant patients without fluoroscopy
Tuzcu, Volkan; Gül, Enes; Erdem, Abdullah; Kamalı, Hacer; Sarıtaş, Türkay; Karadeniz, Cem; Akdeniz, Celal (Springer, 2015)Cardiac interventions with fluoroscopy during pregnancy carry significant risks for the fetus. This report reviews three pregnant patients: two of them requiring pacemaker implantation and one underwent diagnostic cardiac ... -
Catheter ablation for supraventricular tachycardia in children 20kg using an electroanatomical system
Koca, Serhat; Akdeniz, Celal; Tuzcu, Volkan (Springer, 2019)PurposeCatheter ablation is the only choice of treatment in some small children with medically refractory supraventricular tachycardia (SVT). Electroanatomical mapping systems (EMS) are more commonly utilized in ... -
Catheter ablation of idiopathic right ventricular arrhythmias in children with limited fluoroscopy
Akdeniz, Celal; Gül, Enes Elvin; Çelik, Nida; Karacan, Mehmet; Tuzcu, Volkan (Springer, 2016)Introduction Definitive therapy of idiopathic right ventricular arrhythmias (VA) remains a challenge in interventional electrophysiology. The aim of this study was to evaluate the utility of EnSite Velocity system in the ... -
Catheter ablation of left posterior fascicular ventricular tachycardia in children with limited fluoroscopy exposure
Koca, Serhat; Akdeniz, Celal; Karacan, Mehmet; Tuzcu, Volkan (Cambridge University Press, 2019)Introduction:Catheter ablation of left posterior fascicular ventricular tachycardia in the pediatric population remains challenging, and most studies about this topic have been conducted on adult patients. This study aimed ... -
Comparison of 6-mm versus 8-mm-tip cryoablation catheter for the treatment of atrioventricular nodal reentrant tachycardia in children: A prospective study
Tuzcu, Volkan; Gül, Enes Elvin; Karacan, Mehmet; Kamalı, Hacer; Çelik, Nida; Akdeniz, Celal (Springer, 2017)Due to its safety profile, cryoablation (Cryo) for atrioventricular nodal reentrant tachycardia (AVNRT) is more commonly preferred over radiofrequency (RF) ablation in children in recent years. Recent studies demonstrated ... -
Cryoablation of septal accessory pathways in children: Midterm results
Karadeniz, Cem; Akdeniz, Celal; Turan, Özlem; Tuzcu, Volkan (Wiley-Blackwell, 2014)Background: Radiofrequency (RF) catheter ablation in the septal arrhythmia substrates has an increased risk of irreversible atrioventricular block. Despite its safety profile, several studies reported a lower acute success ... -
Cryoablation with an 8-mm-Tip -catheter for right-sided accessory pathways in children
Tanıdır, İbrahim Cansaran; Ergül, Yakup; Öztürk, Erkut; Dalgıç, Fuheda; Kıplapınar, Neslihan; Tola, Hasan Tahsin; Akdeniz, Celal; Tuzcu, Volkan (Wiley-Blackwell, 2016)BackgroundCryoablation is increasingly utilized in children because of its safety profile. Recently, larger catheter tips have been more widely used to improve long-term success rates. The aim of this study was to assess ... -
Çocuklarda elektroanatomik haritalama eşliğinde sınırlı floroskopi ile supraventriküler taşikardilerin ablasyonu
Elkıran, Özlem; Akdeniz, Celal; Tuzcu, Volkan (Logos Medical Publishing, 2018)Amaç: Çocuklarda supraventriküler taşikardi (SVT)’lerin tedavisinde kateter ablasyon başarılı olarak uygulanmakla birlikte, geleneksel yöntemleyapılan ablasyon işlemlerinde X-ışınları kullanılmaktadır. Son dönemlerde, ... -
Deriving cryptographic keys from physiological signals
Karaoğlan Altop, Duygu; Levi, Albert; Tuzcu, Volkan (Elsevier Siences Bv, 2017)Biosensors aim at providing pervasive healthcare by collecting and communicating highly sensitive medical information. Due to their extreme limitations, lightweight and secure key management infrastructures are required. ... -
Effects of carvedilol therapy on cardiac autonomic control, QT dispersion, and ventricular arrhythmias in children with dilated cardiomyopathy
Oflaz, Mehmet Burhan; Ballı, Şevket; Kibar, Ayşe Esin; Ece, İbrahim; Akdeniz, Celal; Tuzcu, Volkan (2013)The purpose of this study was to examine the effects of carvedilol therapy on autonomic control of the heart and QT-interval dispersion (QTd) among children with idiopathic dilated cardiomyopathy (DCM) whose symptoms were ... -
Electroanatomic mapping guided cryoablation of Mahaim pathways in children with limited fluoroscopy exposure
Öztürk, Erkut; Ergül, Yakup; Cansaran Tanıdır, İbrahim; Akdeniz, Celal; Tola, Hasan Tahsin; Tuzcu, Volkan (Blackwell Publishing, 2015)BackgroundThe presence of Mahaim accessory pathways (MAP) with anterograde decremental conduction is a disorder that leads to antidromic atrioventricular reentrant tachycardia. There are rare reports of cryoablation use ... -
Electroanatomic mapping-guided catheter ablation of atrial tachycardia in children with limited/zero fluoroscopy
Elkıran, Özlem; Akdeniz, Celal; Karacan, Mehmet; Tuzcu, Volkan (Wiley, 2019)Introduction Atrial tachycardia (AT) is an uncommon cause of supraventricular tachycardia in children and it is often resistant to medical therapy. Catheter ablation can be curative in children with AT. However, experience ... -
Electroanatomic mapping-guided catheter ablation of supraventricular tachycardia in children with ebstein's anomaly
Ergül, Yakup; Koca, Serhat; Akdeniz, Celal; Tuzcu, Volkan (Springer, 2018)In Ebstein's anomaly (EA), tachycardia substrates are complex, and accessory pathway (AP) ablations are often challenging. This study demonstrates the utility of the EnSite Velocity system (St. Jude Medical, St Paul, MN) ... -
Electrocardiogram interpretation among pediatricians: Assessing knowledge, attitudes, and practice
Ebrahim, Mohammad A.; Alseid, Reem K.; Aleinati, Raghad; Tuzcu, Volkan (Wolters Kluwer Medknow Publications, 2020)Objectives: This study assesses the competency of pediatricians in interpreting electrocardiograms (ECGs).Methods: A cross-sectional study involving 125 pediatricians comprised of 71 general pediatricians, 15 pediatric ... -
Feature-level fusion of physiological parameters to be used as cryptographic keys
Altop Karaoğlan, Duygu; Levi, Albert; Tuzcu, Volkan (Institute of Electrical and Electronics Engineers Inc., 2017)In this paper, we propose two novel feature-level fused physiological parameter generation techniques: (i) concat-fused physiological parameter generation, and (ii) xor-fused physiological parameter generation, output of ...
