Publications by authors named "Heinz-Joachim Buettner"

Background: The prognostic impact of contrast-associated acute kidney injury (CA-AKI) in patients undergoing chronic total occlusion (CTO) percutaneous coronary intervention (PCI) remains underestimated.

Methods: We examined 2707 consecutive procedures performed in a referral CTO center between 2015 and 2019. CA-AKI was defined as an increase in serum creatinine ≥ 0.

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Background: In percutaneous coronary interventions (PCI), the impact of prolonged fluoroscopy time (FT) on procedural outcomes is poorly studied.

Methods And Results: We analyzed the outcomes of 12,538 consecutive elective PCIs. The primary endpoint was procedure failure (PF), the composite of technical failure, and adverse in-hospital events including all-cause death, myocardial infarction, stroke, and target vessel revascularization (MACCE), as well as pericardial tamponade.

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Objectives: The aim of this study was to assess the prognostic impact of post-procedural troponin T increase and mortality in patients undergoing percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) to define the threshold at which procedure-related myocardial injury drives mortality.

Background: Coronary CTO recanalization represents the most technically challenging PCI. The complexity harbors a significant increased risk for complications with CTO PCI with compared with non-CTO PCI.

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Objectives: The aim was to establish a contemporary scoring system to predict the outcome of chronic total occlusion coronary angioplasty.

Background: Interventional treatment of chronic total coronary occlusions (CTOs) is a developing subspecialty. Predictors of technical success or failure have been derived from datasets of modest size.

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Objective: Percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) has undergone impressive progress during the last decade, both in strategies and equipment. It is unknown whether technical refinement has translated into improved outcomes in women undergoing CTO-PCI.

Method And Results: A total of 2002 consecutive patients (17% females, mean age 65.

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Background: Chronic kidney disease (CKD) adversely affects outcomes in patients with coronary artery disease. Data on the impact of renal impairment on prognosis of patients undergoing percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) are scarce.

Methods: A total of 2002 patients undergoing CTO PCI were stratified according to baseline renal function (group 1: estimated glomerular filtration rate [eGFR] ≥ 90 ml/min/1.

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Objectives: A single-centre, observational study was performed in order to investigate the relationship between anemia and outcomes after percutaneous coronary intervention (PCI) for chronic total occlusion (CTO).

Background: Anemia has been identified as adverse predictor in patients with coronary artery disease undergoing coronary revascularization. Data on the impact of anemia on outcomes in patients undergoing PCI for CTO lesions are lacking.

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Aims: Periprocedural myocardial injury (PMI) is frequently observed after percutaneous coronary interventions (PCI) for chronic total occlusion (CTO). We aimed to investigate the prognostic impact of PMI with the antegrade as compared to the retrograde crossing technique.

Methods And Results: A total of 1,909 patients undergoing CTO PCI were stratified according to the presence/absence of PMI (elevation of cardiac troponin T [cTnT] >5x99th percentile of normal), and divided according to tertiles of the difference between peak and baseline cTnT within 24 hours (∆cTnT).

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Successful recanalization of chronic total occlusions (CTO) has been associated with improved survival. Data on outcomes in patients with left ventricular (LV) systolic dysfunction undergoing percutaneous coronary intervention for CTO, however, are scarce. Between January 2005 and December 2013, a total of 2,002 consecutive patients undergoing elective CTO percutaneous coronary intervention at a tertiary care center were divided into patients with (LV ejection fraction ≤ 40%) and without (LV ejection fraction > 40%) LV systolic dysfunction as defined by transthoracic echocardiography.

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Aim: The prognostic value of coronary artery dominance pattern in patients with chronic total occlusions (CTO) is unknown. The aim of this study was to assess the influence of coronary vessel dominance on short and long-term outcomes in patients undergoing percutaneous coronary intervention (PCI) for CTO.

Methods And Results: Our study population consisted of 2002 consecutive patients (17% females, mean age 65.

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Background: Successful CTO recanalization has been associated with clinical benefit. Outcomes of patients with atrial fibrillation undergoing CTO PCI have not been investigated, yet.

Aims: This study sought to evaluate the association between atrial fibrillation and outcomes after percutaneous coronary intervention (PCI) for chronic total occlusions (CTO).

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Conflicting evidence exists on gender differences in outcomes after coronary stenting, and gender-based data in patients with chronic total occlusions (CTO) who underwent percutaneous coronary intervention (PCI) are scarce. Consecutive patients who underwent CTO PCI from January 2005 to December 2013 were included in the analysis and stratified according to gender. The primary outcome measure was all-cause mortality.

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Background: Successful chronic total occlusion (CTO) revascularization has been associated with prognostic benefits. Whether the extent of coronary artery disease interferes with these benefits has not been investigated yet.

Aims: We sought to compare the survival after percutaneous coronary intervention (PCI) for CTO between patients with multi- (MVD) and single-vessel disease (SVD).

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Aims: Few data are available on outcomes of percutaneous coronary intervention (PCI) for coronary chronic total occlusions (CTO) in very elderly patients in the drug-eluting stent (DES) era. We aimed to investigate long-term survival in a single-centre cohort of elderly patients following CTO PCI using DES.

Methods And Results: A total of 2,002 consecutive patients who underwent PCI of a CTO at our centre between January 2005 and December 2013 were followed for a median of 2.

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Background: After transcatheter aortic valve implantation, early leaflet thickening, presumably reflecting thrombus, has recently been described on computed tomography angiography (CTA) in ~10% of the patients. We sought to investigate the impact of the antithrombotic regimen on the course of leaflet thickening.

Methods: The study comprised 51 patients with leaflet thickening.

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Background: The obesity paradox has been described in different patient populations. Data on the relation between obesity and outcomes in patients undergoing percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) are lacking. Therefore, long-term mortality in patients undergoing CTO PCI was assessed according to different body mass index (BMI) categories.

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Background: There is limited data on prognosis after percutaneous coronary intervention (PCI) for coronary chronic total occlusions (CTO) in the era of drug-eluting stents (DES).

Aims: This study investigates the specific contribution of CTO recanalization to the survival benefit of complete revascularization.

Methods: Consecutive patients who underwent PCI of a CTO at our center between 01/2005 and 12/2013 were followed for a median of 2.

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Successful revascularization of chronic total occlusions (CTOs) has been associated with clinical benefit. Data on outcomes in patients with previous coronary artery bypass grafting (CABG) undergoing percutaneous coronary intervention (PCI) for CTO, however, are scarce. A total of 2,002 consecutive patients undergoing PCI for CTO from January 2005 to December 2013 were divided into patients with and without previous CABG, and outcomes were retrospectively assessed.

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Aims: To investigate the prognostic relevance of elevated Troponin T (cTnT) levels in patients with ST-segment elevation myocardial infarction (STEMI) without significant creatine kinase (CK) elevation on admission.

Methods And Results: From January 1, 2002 to December 31, 2006 patients with STEMI without significant CK elevation (<2-fold) on admission treated with percutaneous coronary intervention (PCI) were included and stratified according to cTnT plasma levels. Univariate and multivariate regression analyses were used to find independent predictors for mortality.

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Aims: We sought to evaluate the frequency of early hypo-attenuated leaflet thickening (HALT) of the SAPIEN 3 transcatheter aortic valve (S3).

Methods And Results: Of 249 patients who had undergone S3 implantation, we studied 156 consecutive patients (85 women, median age 82.2 ± 5.

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Background: There is increasing evidence that various types of drug-eluting stents (DES) may differ regarding the long-term safety and efficacy, particularly in complex lesion subsets.

Aims: In a cohort of consecutive patients undergoing bifurcation stenting, we sought to compare the 1-year efficacy and safety of the first-generation paclitaxel-eluting stents (PES), the first-generation sirolimus-eluting (SES) and the second-generation everolimus- or zotarolimus-eluting stents (EES/ZES).

Methods: We treated 2197 patients (mean age 67.

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Introduction: The presence of symptomatic or asymptomatic intravascular/intracardiac foreign body (FB) is underreported in the literature, but it is more commonly encountered in clinical practice. Nowadays, losing a coronary stent or a guidewire has become a rare event. However, due to the constant increase in the total number of worldwide performed coronary interventions (PCI) and especially due to an increase also in the technical difficulties of these procedures (i.

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Background: The purpose of this study was to assess the long-term risks and benefits of drug-eluting stents (DESs) compared with bare-metal stents (BMSs) for treatment of coronary bifurcation lesions.

Methods: Our registry comprised 1,038 patients treated for coronary bifurcation lesion according to the provisional T-stenting strategy who were followed up for 3 years.

Results: Target lesion revascularization rates were 24.

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New European Society of Cardiology/American College of Cardiology guidelines classify patients with acute coronary syndrome and increased cardiac troponins as non-ST-segment elevation myocardial infarction (NSTEMI) who would have been classified as unstable angina pectoris (UAP) using the older World Health Organization (WHO) definition. The optimal revascularization strategy in these patients is poorly defined. This prospective cohort study included 1,024 consecutive patients with acute coronary syndrome classified as UAP, NSTEMI according to the WHO definition (WHO NSTEMI), and NSTEMI additionally identified by the novel European Society of Cardiology/American College of Cardiology definition (additional NSTEMI).

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