Browsing by Author "Keles, Telat"

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Association Between Electrocardiographic Parameters and Collateral Circulation in Patients With Chronic Total Occlusion
(2020) Karaduman, Bilge Duran; Ayhan, Hüseyin; Keles, Telat; Bozkurt, Engin
Aim: In patients with chronic total occlusion (CTO), negative cardiovascular outcomes (angina, more frequent ventricular arrhythmias, higher mortality) and reduced survival have been demonstrated. The association between several electrocardiogram (ECG) markers, revealing individuals at high risk for ventricular arrhythmia, and collateral has been investigated in different studies in coronaryartery disease patients. In this study, we aimed to investigate the association between the electrocardiographic parameters between good coronary collateral group and poor coronary collateral group in CTO patients with PCI.Material and Methods: Patients retrospectively implemented CTO PCI to those with symptomatic symptoms of myocardial ischemia or with the exact sign of ischemia in the CTO area. The patients were divided into 2 groups according to the Rentrop class: group 1 (Rentrop 0 and 1) and group 2 (Rentrop 2 and 3). Baseline characteristics, laboratory and ECGs, procedural data, and outcome data were retrospectively collected.Results: In this study included 59 CTO patients undergoing PCI. Mean age was 61.0±10.3 years and 43 (72.9%) of patients were male, and PCI success was 69.4%. While 22 (37.2%) of the patients were poor collateral group 1 (Rentrop 0 and 1), the remaining 37 (62.3%) of them were good collateral group 2 (Rentrop 2 and 3). There was a significant difference, in poor and good collateral groups, QT dispersion (77.2±27.9 vs 66.5±22.5, p: 0.041, respectively), QTc dispersion (82.1±26.9 vs 70.4±23.9, p: 0.034, respectively), and the presence of fQRS (63.6% vs 43.2, p: 0.027, respectively). But there was no statistically difference in P wave dispersion (48.0±9.5 vs 47.2±11.3, p: 0.796). Correlation analysis reported the association between Rentrop classification and Syntax score (r: -0.397, p: 0.002), LDL-C (r: -0.198, p: 0.025), QT dispersion (r: -0.156, p: 0.045), QTc dispersion (r: -0.176, p: 0.037), and the presence of fQRS (r: 0.234, p: 0.021) were statistically significant.Conclusion: We suggest that some ECG parameters are an important, easy, simple, and cost effective tool and can be beneficial in predicting the poor or good collateral in patients with CTO
Citation - WoS: 8
Citation - Scopus: 8
Association between monocyte to high-density lipoprotein cholesterol ratio and bicuspid\raortic valve degeneration
(Tubitak Scientific & Technological Research Council Turkey, 2020) Karaduman, Bilge Duran; Ayhan, Hüseyin; Keles, Telat; Bozkurt, Engin
Background/aim: From a pathophysiological point of view, inflammation is thought to be more dominant in bicuspid aortic valve\r(BAV) stenosis than tricuspid aortic valve (TAV) stenosis. Our study aimed to determine the association between monocyte to highdensity lipoprotein cholesterol (HDL-C) ratio (MHR), a new inflammatory marker, and the speed of progression of stenosis and\rpathophysiology of BAV stenosis.\rMaterials and methods: A total of 210 severe aortic stenosis patients (70 consecutive BAV patients, 140 matched TAV patients) were\rretrospectively enrolled in the study. Clinical and echocardiographic data and laboratory results related to our research were collected\rretrospectively from the patients’ records. MHR was measured as the ratio of the absolute monocyte count to the HDL-C value.\rResults: Seventy BAV (mean age: 72.0 ± 9.1 years, 42.9% female) and 140 TAV patients (mean age: 77.9 ± 8.3 years, 51.4% female)\rwith severe aortic stenosis were enrolled in this study. There was no difference between the two groups in terms of another baseline\rdemographic or clinic findings except age (P < 0.001). Monocyte count, hemoglobin level, mean platelet volume was significantly\rhigher, and HDL-C level was significantly lower in the BAV group, while other lipid and CBC parameters were found to be similar. In\rthe multivariate analysis, MHR (P = 0.005, 95% CI: 0.90–0.98) and, as expected, age (P = 0.001, 95% CI: 1.02–1.11) were found to be\rsignificant as the independent predictor of BAV, after adjusting for other risk factors.\rConclusion: Our study showed a significant correlation between increased MHR and BAV. MHR was determined as a significant\rindependent predictor for the speed of progression and diagnosis of severe BAV stenosis in multivariate analysis.
Association Between Rutherford Classification and Cha₂ds_{2< Chads₂ and Ascvd Scores in Peripheral Artery Disease Patients}
(Bmc, 2020) Karaduman, Bilge Duran; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
Background and Aim: The classification system is important in assessing the severity of Peripheral Artery Disease (PAD) and making the treatment decision. However, classification systems may not be sufficient and scoring systems developed to predict cardiovascular and cerebrovascular events can also be useful to assess the severity of PAD. In this study, our aim was to investigate the association of the Rutherford classification and CHADS(2), CHA(2)DS(2)-VASc and ASCVD scores in PAD patients. Method: A total of 65 consecutive patients with PAD (males 92.3%, mean age 63.0 +/- 9.2 years), who underwent percutaneous peripheral intervention were included in our retrospective study. Results: There were 16 patients in Category 2, 31 patients in Category 3, and 10 patients in Category 4 and eight patients in Category 5. The CHADS(2), CHA(2)DS(2)-VASc and ASCVD scores were found to be significantly different among the Rutherford categories and between each other. From Category 1 to 5, CHADS(2), CHA(2)DS(2)-VASc and ASCVD scores were significantly increased. When we grouped the scores as CHADS 2 <2 and <2 and CHA(2)DS(2)-VASc<4 and >= 4, it was determined that as the category increased the score group also increased. There was significantly correlation between CHADS(2), CHA(2)DS(2)-VASc and ASCVD scores with the Rutherford categories in correlation analyses. Conclusion: As far as we know, in this study which is the first study about the association of Rutherford classification and scoring systems, the major finding of the present study is that the CHADS(2), CHA(2)DS(2)-VASc and ASCVD scores was independently correlated with the severity of Rutherford Category in patients with PAD. (C) 2020 Association for Research into Arterial Structure and Physiology. Publishing services by Atlantis Press International B.V.
Citation - WoS: 4
Citation - Scopus: 4
Clinical Outcomes After Transcatheter Aortic Valve Implantation in Active Cancer Patients and Cancer Survivors
(Baycinar Medical Publ-baycinar Tibbi Yayincilik, 2021) Karaduman, Bilge Duran; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
Background: In this study, we aimed to evaluate the clinical characteristics, perioperative, and mid-term outcomes of patients with severe symptomatic aortic stenosis and active cancer disease and cancer survivors undergoing transcatheter aortic valve implantation. Methods: Between December 2011 and March 2019, a total of 550 patients (248 males, 302 females; mean age: 77.6 +/- 7.9 years; range, 46 to 103 years) who underwent transcatheter aortic valve implantation for severe symptomatic aortic stenosis in our center were retrospectively analyzed. Baseline demographic characteristics, cancer type, laboratory data, procedural data, and outcome data of the patients were collected. The primary outcome measure was all-cause mortality at 30 days and every six months up to maximally available follow-up. Follow-up was performed at 30 days, six months, and 12 months after the procedure and annually thereafter. Results: Of the patients, 36 had a cancer diagnosis-active (n=10) or cured (n=26). The most common types of cancer were colorectal (16.6%), prostate (13.8%), leukemia (11.1%), and bladder (11.1%) cancers. Post-procedural complication rates were similar between the two groups. No mortality was observed in the cancer group at one month of follow-up. During follow-up, seven patients died within one year due to non-cardiac reasons. Although mortality at one year was higher in cancer patients, it did not reach statistical significance (23.3% vs. 11.6%, respectively; p=0.061). The estimated cumulative survival rate was 71.0% in the non-cancer group and 58.3% in the cancer group. The multivariate Cox regression analysis revealed that cancer was independently associated with cumulative mortality after adjusting for age, sex, body mass index, and atrial fibrillation (p=0.008). Conclusion: Our study results show that transcatheter aortic valve implantation is safe and feasible in active cancer patients and cancer survivors with similar short-term and mid-term mortality and procedure-related complication rates, compared to non-cancer patients.
How To Define 30-Day Mortality?
(2021) Akyüz, Ali Rıza; Korkmaz, Levent; Karaduman, Bilge Duran; Ayhan, Hüseyin; Keles, Telat; Bozkurt, Engin
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How To Define 30-Day Mortality? Reply
(Turkish Soc Cardiology, 2021) Karaduman, Bilge Duran; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
[No Abstract Available]
Citation - WoS: 7
Citation - Scopus: 9
Impact of Coronary Revascularization on Outcomesof Transcatheter Aortic Valve Implantation
(Aves, 2021) Karaduman, Bilge Duran; Ayhan, Hüseyin; Keles, Telat; Bozkurt, Engin
Objective: Although the effect of coronary revascularization on clinical outcomes before and after transcatheter valve implantation (TAVI) is debatable, there is currently insufficient data to determine the most appropriate revascularization strategy. In this study, we present our single-center experience of percutaneous coronary intervention (PCI) and its effect on clinical outcomes and mortality in patients undergoing TAVI.Methods: We performed a retrospective analysis of 526 consecutive patients at our center, and 127 patients with obstructive coronary artery disease were included in the study. Patients were divided into two groups: the revascularization group (group 1) and the non-revascularization group (group 2). Procedural complications and long-term all-cause mortality rates were compared between the two groups.Results: Of the 526 patients, group 1 comprised 65 patients (12.3%) who underwent PCI, and group 2 comprised 62 patients (11.7%) who did not undergo revascularization. According to Valve Academic Research Consortium 2 criteria, post-procedural complications, including pericardial effusion, stroke, major vascular complications, major bleeding, and emerging arrhythmias, were similar between the groups. A Kaplan–Meier survival curve analysis showed no significant difference between the revascularization and non-revascularization groups (Overall: 40.0±2.8 month; 95% CI 34.4-45.6 month, p=0.959). After adjustment for basal SYNTAX score, chronic kidney disease stage, previous myocardial infarction, and baseline troponin levels, the long-term survival of group 1 was significantly longer when compared with group 2 (p=0.036). In 75.4% of cases, PCI was performed within 11.0±14.7 days before or after TAVI as a staged procedure. In 13.8% of cases, PCI was performed simultaneously with TAVI. While there was no significant difference in in-hospital, 6-month, and 1-year mortality rates between the simultaneous and staged PCI groups, there was a significant difference in 30-day mortality (11.1% vs. 0%, respectively; p=0.016).Conclusion: Peri-procedural and long-term safety outcomes and mortality rates are not significantly different between revascularized and non-revascularized patients, and neither staged nor simultaneous PCI have adverse outcomes in patients undergoing TAVI.
Karotis Arter Stentlemesinin Etkinliği ve Güvenliği: Tek Merkez Deneyimi
(Kare Publ, 2020) Karaduman, Bilge Duran; Karaduman, Bilge Duran; Ayhan, Hüseyin; Ayhan, Hüseyin; Keles, Telat; Bozkurt, Engin; Karaduman, Bilge Duran; Ayhan, Hüseyin
Amaç: İnternal karotis arterdeki orta ve şiddetli darlıklar tüm inmelerin %10–15’ine neden olmaktadır. Bu çalışmada, üçüncü basamak bir referans merkezde karotis arter stentlemesinin (KAS) güvenliğini ve kısa dönem etkinliğini değerlendirmeyi amaçladık. Yöntemler: Üçüncü basamak merkezimizde Ocak 2017 ile Mayıs 2018 arasında KAS uygulanan hastalar geriye dönük olarak değerlendirildi. KAS uygulanan 145 hasta çalışmaya dahil edildi. Bulgular: Hastaların ortalama yaşı 70.1±8.6 yıl idi ve tüm grubun %75.2’si erkek olup %37.9’unda hipertansiyon mevcuttu. Hastaların 81’i (%55.9) semptomatik, 64’ü (%44.1) asemptomatik olarak gruplandırıldı. Semptomatik hastalarda koroner girişimler daha çok KAS sonrası (%38.9) yapılırken, asemptomatik grupta ise KAS öncesi (%25.9) ve sonrasında (%25.9) benzer oranlarda yapıldığı görüldü ama gruplar arasında istatistiksel fark yoktu. Semptomatik hastalarda (%59.2), asemptomatik hastalarda (%78.7) olduğu gibi distal emboli koruyucu cihaz (EKC), proksimal EKC’ye göre daha fazla kullanıldı. Ancak proksimal EKC, semptomatik hastalarda asemptomatik hastalara kıyasla anlamlı olarak daha fazla kullanıldı. Hastane içi ölüm görülmedi ve tüm popülasyonda 5 (%3.4) hastada inme veya geçici iskemik atak (GİA) gözlendi. Asemptomatik grupta GİA veya inme gözlenmedi, semptomatik grupta 2 hastada (%2.4) inme ve 3 hastada (%3.7) GİA görüldü. Sonuç: Bu çalışma kabul edilebilir komplikasyon oranları ile KAS’ın güvenirliğini ve uygulanabilirliğini ortaya koymuştur. KAS prosedürü, deneyimli girişimciler tarafından optimal tıbbi tedavi altında, agresif risk modifikasyonu ile EKC kullanılarak, uygun hastalarda en az komplikasyonla gerçekleştirilmelidir.
Citation - WoS: 1
Citation - Scopus: 1
Left Ventricular Geometry as a Predictor of Carotid Artery Stenosis Severity in Patients Undergoing Carotid Artery Stenting
(Wiley, 2020) Karaduman, Bilge Duran; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
Background and Aim Cerebrovascular diseases are the second most common cause of death worldwide. Moderate and severe carotid artery stenosis causes nearly 10% of all strokes. LV geometry is a familiar prognostic and diagnostic factor in several populations; yet, data on its role in carotid artery stenosis are unknown. In our study, we investigated the prognostic value of LV geometry in predicting carotid artery stenosis severity in patients undergoing carotid artery stenting. Methods Patients who underwent carotid artery stenting between January 2012 and January 2016 at our tertiary care center were evaluated retrospectively. Two hundred fifty-five patients who underwent carotid artery stenting were included in the study. Accessible echocardiographic documentation of ninety-eight patients was accessed and evaluated. Results LV normal geometry was detected in 37 (37.7%) of the 98 carotid artery stenting (CAS) patients, concentric hypertrophy in 13 (13.2%), eccentric hypertrophy in 9 (9.1%), and concentric remodeling in 39 (39.7%). By a majority, distal filter was used in normal geometry and eccentric hypertrophy groups (82.9% vs 100%, P: .017). Considering the relationship between carotid artery stenosis severity and LV geometry, we determined that the stenosis severity was statistically significantly higher in the concentric hypertrophy group (p:0.012). However, although no complications were detected in the concentric hypertrophy group, it did not reach statistical significance between the groups (P: .058). LVMi and as expected, Doppler velocity showed a significant correlation with stenosis severity (r = .23 vs .54; P: .021, <.001, respectively). Conclusion Echocardiographic evaluation of LV geometry provided prognostic information in the development of carotid artery stenosis. Abnormal LV geometry is an independent predictor in detecting the severity of carotid artery stenosis undergoing carotid artery stenting.
Citation - WoS: 1
Citation - Scopus: 1
Outcomes of Transcatheter Aortic Valve Implantation in Patients With and Without Diabetes Mellitus
(Soc Brasil Cirurgia Cardiovasc, 2024) Ayhan, Huseyin; Guney, Murat Can; Keles, Telat; Bozkurt, Engin
Introduction: Diabetes mellitus (DM) in patients undergoing cardiac transcatheter or surgical interventions usually is correlated with poor outcomes. Transcatheter aortic valve implantation (TAVI) has been developed as a therapy choice for inoperable, high-, or intermediate-risk surgical patients with severe aortic stenosis (AS). Objective: To evaluate the impact of DM and hemoglobin A1c (HbA1c) on outcomes and survival after TAVI. Methods: Five hundred and fifty-two symptomatic severe AS patients who underwent TAVI, of whom 164 (29.7%) had DM, were included in this retrospective study. Follow-up was performed after 30 days, six months, and annually. Results: The device success and risks of procedural-related complications were similar between patients with and without DM, except for acute kidney injury, which was more frequent in the DM group (2.4% vs. 0%, P=0.021). In-hospital and first-year mortality were similar between the groups (4.9% vs. 3.6%, P=0.490 and 15.0% vs. 11.2%, P=0.282, respectively). There was a statistical difference between HbA1c >= 6.5 and HbA1c <= 6.49 groups in total mortality (34.4% vs. 15.8%, P<0.001, respectively). The only independent predictors were Society of Thoracic Surgeons score (hazard ratio [HR] 1.28, 95% confidence interval [CI] 1.09-1.51; P=0.003) and HbA1c level >= 6.5 (HR 10.78, 95% CI 2.58-21.50; P=0.003) in multivariable logistic regression analysis. Conclusion: In this study, we conclude that DM was not correlated with an increased mortality risk or complication rates after TAVI. Also, it was shown that mortality was higher in patients with HbA1c >= 6.5, and it was an independent predictor for long-term mortality.
Paravalvular Leak After Transcatheter Aortic Valve Implantation Reply
(Turkish Soc Cardiology, 2020) Karaduman, Bilge Duran; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
[No Abstract Available]
Citation - Scopus: 1
The Playmaker of the Mitral Valve Disease: Mitral Annulus
(Elsevier Ireland Ltd, 2020) Karaduman, Bilge Duran; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
[No Abstract Available]
Predictive Factors of Cardiac Function Recovery and Mortality in Patients With Reduced Ejection Fraction Undergoing Transcatheter Aortic Valve Implantation
(Mdpi, 2025) Guney, Murat Can; Suygun, Hakan; Polat, Melike; Ayhan, Huseyin; Keles, Telat; Ertop, Zeynep Seyma Turinay; Bozkurt, Engin
Background and Objectives: Patients with reduced left ventricular ejection fraction (LVEF) are reported to have unfavorable outcomes following transcatheter aortic valve implantation (TAVI). This study aims to evaluate outcomes and identify predictive factors for LVEF recovery following TAVI in patients with reduced LVEF. Materials and Methods: This retrospective study analyzed 114 patients with symptomatic severe aortic stenosis (AS) with LVEF < 40% who underwent TAVI between 2011 and 2023 at two centers. Echocardiographic parameters, including LVEF, ventricular dimensions, and relative wall thickness (RWT), were assessed at baseline and during follow-up. The outcomes and predictors of substantial LVEF improvement and mortality were analyzed using univariate and multivariate logistic regression methods. Results: Anemia (OR = 4.345, 95% CI: 1.208-15.626, p = 0.024), RWT (OR = 1.224, 95% CI: 1.064-1.407, p = 0.005), and early post-procedural changes in left ventricular end-systolic dimension (LVESD) (OR = 1.297, 95% CI: 1.037-1.622, p = 0.023) and left ventricular end-diastolic dimension (LVEDD) (OR = 1.346, 95% CI: 1.034-1.753, p = 0.027) at one-month follow-up were identified as significant factors associated with LVEF recovery at one year. Regarding factors related to mortality, higher baseline AVMG levels were associated with a lower probability of death after one year (OR = 0.926, 95% CI: 0.875-0.979, p = 0.007). Conversely, a more limited increase in LVEF from baseline to the final follow-up was linked to poor prognosis and higher mortality at one year (95% CI: 1.045-1.594, p = 0.018). Conclusions: This study demonstrated that TAVI in patients with AS and reduced LVEF can be performed with high procedural success, low mortality, and significant improvement in cardiac function during follow-up. Additionally, anemia, baseline RWT, and early post-procedural changes in LVESD and LVEDD were identified as factors associated with LVEF recovery. Baseline AVMG and changes in LVEF at the final follow-up were found to be significant predictors of total mortality.
Citation - Scopus: 1
Predictors and Prognostic Implications of Myocardial Injury After Transcatheter Aortic Valve Replacement
(Texas Heart inst, 2022) Guney, Murat Can; Keles, Telat; Karaduman, Bilge Duran; Ayhan, Huseyin; Suygun, Hakan; Kahyaoglu, Muzaffer; Bozkurt, Engin
Myocardial injury (MI) is not unusual after transcatheter aortic valve replacement (TAVR). To determine precipitating factors and prognostic outcomes of MI after TAVR, we retrospectively investigated relationships between MI after TAVR and aortic root dimensions, baseline patient characteristics, echocardiographic findings, and procedural features. Of 474 patients who underwent transfemoral TAVR for severe aortic stenosis in our tertiary center from June 2011 through June 2018, 188 (mean age, 77.7 +/- 7.7 yr; 96 women [51%]) met the study inclusion criteria. Patients were divided into postprocedural MI (PMI) (n=74) and no-PMI (n=114) groups, in accordance with high-sensitivity troponin T levels. We found that MI risk was associated with older age (odds ratio [OR]=1.054; 95% CI, 1.013-1.098; P=0.01), transcatheter heart valve type (OR=10.207; 95% CI, 2.861-36.463; P=0.001), distances from the aortic annulus to the right coronary artery ostium (OR=0.853; 95% CI, 0.731-0.995; P=0.04) and the left main coronary artery ostium (OR=0.747; 95% CI, 0.616-0.906; P=0.003), and baseline glomerular filtration rate (OR=0.985; 95% CI, 0.970-1.000; P= 0.04). Moreover, the PMI group had a longer time to hospital discharge (P=0.001) and a higher permanent pacemaker implantation rate (P=0.04) than did the noPMI group. Our findings may enable better estimation of which patients are at higher risk of MI after TAVR and thus improve the planning and course of clinical care.
Citation - WoS: 2
Citation - Scopus: 2
Prognostic Implications and Predictors of Mitral Regurgitancy Reduction After Transcatheter Aortic Valve Implantation
(Mdpi, 2024) Guney, Murat Can; Suygun, Hakan; Polat, Melike; Ayhan, Huseyin; Keles, Telat; Ertop, Zeynep Seyma Turinay; Bozkurt, Engin
Background: Mitral regurgitation (MR) is a common condition observed in patients undergoing transcatheter aortic valve implantation (TAVI) for the treatment of aortic stenosis (AS). However, the impact of TAVI on MR outcomes and the factors predicting MR improvement remains uncertain. Understanding these predictors can enhance patient management and guide clinical decisions. Methods: This retrospective cohort study included 156 patients with moderate to severe MR undergoing TAVI. MR severity was assessed via echocardiography at baseline, as well as 6 months and 1 year after TAVI. Patients were divided into groups based on MR reduction: no improvement or worsening, one-degree improvement, and at least two-degree improvement. Clinical, echocardiographic, and procedural characteristics were evaluated as predictive factors for MR improvement after TAVI. Results: MR reduction occurred in 68% of patients at 6 months and 81% at 1 year. Factors predicting a reduction of two grades or more in MR severity included lower baseline LVEDD (OR = 1.345, 95% CI: 1.112-1.628, p = 0.002) lower baseline LA (OR = 1.121, 95% CI: 1.015-1.237, p = 0.024), lower baseline LVMI (OR = 1.109, 95% CI: 1.020-1.207, p = 0.024), and higher baseline EF levels (OR = 1.701, 95% CI: 1.007-2.871, p = 0.047). No significant association was found between MR reduction at 6 months and one-year mortality. (p = 0.65). Conclusions: Baseline echocardiographic parameters are valuable in predicting MR improvement post-TAVI, with LVMI emerging as a novel predictor. However, MR reduction did not independently predict survival, underscoring the need for further research to optimize patient selection and management strategies in TAVI candidates.
Citation - WoS: 2
Citation - Scopus: 4
Semptomatik Çok Ciddi Aort Darlıklı Hastalarda Transkateter Aort Kapak İmplantasyonun Etkisi
(Kare Publ, 2021) Karaduman, Bilge Duran; Ayhan, Hüseyin; Keles, Telat; Bozkurt, Engin
Amaç: Aort darlığı (AD) ilerleyici bir hastalıktır ve tek tedavi seçeneği olan kapak replasmanı semptomatik hale geldikten sonra ve geri dönüşümsüz miyokardiyal hasar gelişmeden önce yapılmalıdır. Çok ciddi aort darlığı (ÇCAD) hastalarında cerrahi kapak replasmanı asemptomatik olsa bile önerilmektedir. Ancak ÇCAD hastalarında transkateter aortik kapak implantasyonunun (TAVI) etkisi hakkında ayrıntılı bir çalışma yoktur. Bu çalışmada amacımız, semptomatik ÇCAD hastalarında TAVI’nin uygulanabilirliğini ve güvenilirliğini göstermektir. Yöntemler: Merkezimizde TAVI uygulanan toplam 505 ardışık semptomatik AD hastası retrospektif olarak incelendi. Hastaların ortalama yaşı 77.8±7.6 yıl ve %56.4 kadın idi. Hastalar ÇCAD grubu (n: 134 hasta) ve yüksek gradyentli AD grubu (YGAD, n: 371 hasta) olarak iki gruba ayrıldı. Bulgular: ÇCAD grubunda daha fazla kadın cinsiyet, daha yüksek sol ventrikül ejeksiyon (SV) fraksiyonu, daha fazla küçük SV, hipertrofik SV, daha fazla normal koronerler ve daha az koroner arter hastalığı, bypas cerrahisi, miyokard enfarktüsü ve atriyal fibrilasyon öyküsü vardı. Predilatasyon ve Edwards SAPIEN 3 ÇCAD grubunda olarak daha az kullanıldı. VARC-2 kriterlerine göre majör komplikasyonlar ve hastane içi mortalitede (ÇCAD grubu; 5 hasta, YG AD grubu; 16 hasta, p: 0.769) istatistiksel fark saptanmadı. İki grup arasında Cox regresyon modeli sağ kalım eğrisinde ÇCAD lehine istatistiksel olarak anlamlı fark vardı (p<0.001). Sonuç: Bu çalışmamız ile semptomatik çok ciddi aort darlığında TAVI’nin kabul edilebilir komplikasyon ve daha yüksek sağ kalım oranları ile uygulanabilir ve güvenli olduğu gösterilmiştir. Hâlihazırda cerrahi kapak replasmanı endikasyonu olan asemptomatik ÇCAD hastalarında TAVI uygulanabilmesi için daha fazla randomize büyük çalışma gereklidir.
Citation - Scopus: 1
Stenotic Double-Orifice Mitral Valve After Surgical Repaired Partial Atrioventricular Septal Defect
(Wiley, 2020) Duran Karaduman, Bilge; Torun, Ayse Nur; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
Double-orifice mitral valve (DOMV) is an uncommon congenital anomaly account for 1% of congenital heart disease. However, accurate diagnosis and evaluation of valve stenosis or regurgitation and other concomitant congenital anomalies due to DOMV are required to obtain suitable treatment. Two- and three-dimensional echocardiography can contribute valuable functional and anatomic information that can support to reach this goal. Here, we present a case of complete bridge-type DOMV that causes mitral stenosis after surgical repair of the partial atrioventricular septal defect in childhood.
Citation - WoS: 2
Citation - Scopus: 2
Transcarotid Transcatheter Aortic Valve Implantation With a Novel Balloon Expandable Myval® Thv Under the Local Anesthesia
(Tsinghua Univ Press, 2022) Ayhan, Huseyin; Karaduman, Bilge Duran; Keles, Telat; Uguz, Emrah; Boysan, Emre; Bozkurt, Engin
[No Abstract Available]
Transcatheter Aortic Valve Implantation in Bicuspid Aortic Valve Patients With Coagulation Factor 7 and 11 Deficiency and Atrial Fibrillation
(Kare Publ, 2023) Guney, Murat Can; Karaduman, Bilge Duran; Ayhan, Huseyin; Keles, Telat; Bozkurt, Engin
[No Abstract Available]
Citation - WoS: 2
Citation - Scopus: 2
Transcatheter Aortic Valve Implantation in Patients With Connective Tissue Disease
(Taiwan Soc Cardiology, 2021) Ayhan, Huseyin; Karaduman, Bilge Duran; Keles, Telat; Bozkurt, Engin
Background: There is still no consensus on the treatment of patients with connective tissue disease (CTD) with severe symptomatic aortic stenosis (AS). The aim of this study was to evaluate the feasibility and safety of transcatheter aortic valve implantation (TAVI) in patients with CTD. Methods: Five hundred and fifty consecutive symptomatic severe AS patients who underwent TAVI between 2011 and 2019 were included in this retrospective study, of whom 14 had CTD. Follow-up was performed 30 days, 6 months, and 1 year after the procedure. Results: Of the 14 (2.5%) patients who had CTD, most had rheumatoid arthritis (n = 10), followed by lupus erythematosus (n = 2), scleroderma (n = 1) and mixed (n = 1) CTD. The mean age was 77.6 +/- 7.9 years, and there was no statistical difference between the CTD and no-CTD groups. In addition, significantly more of the CTD patients (85.7%) were female compared to the no-CTD group (p = 0.018). None of the patients in the CTD group had acute kidney injury, stroke, major bleeding, or pericardial effusion. However, significantly more patients in the CTD group (n = 4) needed permanent pacemaker implantation than in the no-CTD group (p = 0.008). There were no significant differences between the two groups in terms of mean discharge time (CTD 4.6 +/- 2.0, no-CTD 4.5 +/- 2.3 days, p = 0.926) and in-hospital mortality [CTD 1 (7.1%), no-CTD 21 (3.9%); p = 0.542]. Conclusions: In this study, we presented the results of TAVI in patients with and without CTD. The TAVI procedure had similar mid-term outcomes in the two groups, and the CTD group had numerically lower rates of major complications at the cost of a higher incidence of pacemaker implantation.