Maciej Wybraniec

Dr. Maciej Wybraniec

First Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, 47 Ziołowa St., 40-635, Katowice, Poland
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Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 January 2018 in European Heart Journal
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PCPhilippe Charron
Philippe Charron
Perry ElliottPerry Elliott
Perry Elliott
Juan Ramón GimenoJuan Ramón Gimeno
Juan Ramón Gimeno
ACAlida L P Caforio
Alida L P Caforio
Juan Pablo KaskiJuan Pablo Kaski
Juan Pablo Kaski
EZEsther Zorio
Esther Zorio
The Cardiomyopathy Registry of the EURObservational Research Programme is a prospective, observational, and multinational registry of consecutive patients with four cardiomyopathy subtypes: hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), arrhythmogenic right ventricular cardiomyopathy (ARVC), and restrictive cardiomyopathy (RCM). We report the baseline characteristics and management of adults enrolled in the registry. A total of 3208 patients were enrolled by 69 centres in 18 countries [HCM (n = 1739); DCM (n = 1260); ARVC (n = 143); and RCM (n = 66)]. Differences between cardiomyopathy subtypes (P < 0.001) were observed for age at diagnosis, history of familial disease, history of sustained ventricular arrhythmia, use of magnetic resonance imaging or genetic testing, and implantation of defibrillators. When compared with probands, relatives had a lower age at diagnosis (P < 0.001), but a similar rate of symptoms and defibrillators. When compared with the Long-Term phase, patients of the Pilot phase (enrolled in more expert centres) had a more frequent rate of familial disease (P < 0.001), were more frequently diagnosed with a rare underlying disease (P < 0.001), and more frequently implanted with a defibrillator (P = 0.023). Comparing four geographical areas, patients from Southern Europe had a familial disease more frequently (P < 0.001), were more frequently diagnosed in the context of a family screening (P < 0.001), and more frequently diagnosed with a rare underlying disease (P < 0.001). By providing contemporary observational data on characteristics and management of patients with cardiomyopathies, the registry provides a platform for the evaluation of guideline implementation. Potential gaps with existing recommendations are discussed as well as some suggestions for improvement of health care provision in Europe.

9 June 2014 in Cardiology Journal
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Journal Article
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MWMaciej Wybraniec
Maciej Wybraniec
Katarzyna Mizia-StecKatarzyna Mizia-Stec
Katarzyna Mizia-Stec
Łukasz J. KrzychŁukasz J. Krzych
Łukasz J. Krzych
Background: The purpose of this review was to summarize the up-to-date knowledge on clinical presentation and management of neurocardiogenic injury and to deliver the evidence of common pathophysiology of this broad spectrum of disorders. Methods: Medline and EmBase databases were searched to obtain original research articles and review papers using the following key words: neurocardiogenic injury, stress cardiomyopathy,tako-tsubo, subarachnoid hemorrhage, ECG abnormalities, catecholamine toxicity, neuropulmonary edema. Results: Various forms of cerebral pathology, most importantly subarachnoid hemorrhage (SAH), are accompanied by transient cardiac dysfunction with ST-segment elevation and QT interval prolongation and T wave inversion with simultaneous release of cardiac troponin. In the past 20 years a great deal of data emerged concerning stress cardiomyopathy (‘tako-tsubo’) presenting as a rare transient apical ballooning syndrome following stressful life events with symptoms and signs resembling acute myocardial infarction (AMI), yet without significant coronary artery stenosis. Both forms of cardiac dysfunction are mediated by catecholamine toxicity, triggered by physical and psychological distress, leading to a specific type of neurogenic myocardial stunning reflected by histopathological image of contraction band necrosis. Conclusions: Neurocardiogenic injury should be carefully differentiated from AMI. Cardiac dysfunction in SAH heralds increased mortality. The criteria for the diagnosis of stress cardiomyopathy should be revised to comprise the diversity of its clinical symptomatology and to include cardiac dysfunction accompanying cerebral pathology. Background: The purpose of this review was to summarize the up-to-date knowledge on clinical presentation and management of neurocardiogenic injury and to deliver the evidence of common pathophysiology of this broad spectrum of disorders. Methods: Medline and EmBase databases were searched to obtain original research articles and review papers using the following key words: neurocardiogenic injury, stress cardiomyopathy,tako-tsubo, subarachnoid hemorrhage, ECG abnormalities, catecholamine toxicity, neuropulmonary edema. Results: Various forms of cerebral pathology, most importantly subarachnoid hemorrhage (SAH), are accompanied by transient cardiac dysfunction with ST-segment elevation and QT interval prolongation and T wave inversion with simultaneous release of cardiac troponin. In the past 20 years a great deal of data emerged concerning stress cardiomyopathy (‘tako-tsubo’) presenting as a rare transient apical ballooning syndrome following stressful life events with symptoms and signs resembling acute myocardial infarction (AMI), yet without significant coronary artery stenosis. Both forms of cardiac dysfunction are mediated by catecholamine toxicity, triggered by physical and psychological distress, leading to a specific type of neurogenic myocardial stunning reflected by histopathological image of contraction band necrosis. Conclusions: Neurocardiogenic injury should be carefully differentiated from AMI. Cardiac dysfunction in SAH heralds increased mortality. The criteria for the diagnosis of stress cardiomyopathy should be revised to comprise the diversity of its clinical symptomatology and to include cardiac dysfunction accompanying cerebral pathology.

1 June 2014 in Journal of Cardiothoracic and Vascular Anesthesia
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Journal Article
Closed access
Łukasz J. KrzychŁukasz J. Krzych
Łukasz J. Krzych
MWMaciej Wybraniec
Maciej Wybraniec
IKIrena Krupka-Matuszczyk
Irena Krupka-Matuszczyk
MSMichał Skrzypek
Michał Skrzypek
ABAnna Bolkowska
Anna Bolkowska
ABAndrzej A. Bochenek
Andrzej A. Bochenek

22 December 2013 in BioMed Research International
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Łukasz J. KrzychŁukasz J. Krzych
Łukasz J. Krzych
MWMaciej Wybraniec
Maciej Wybraniec
IKIrena Krupka-Matuszczyk
Irena Krupka-Matuszczyk
MSMichał Skrzypek
Michał Skrzypek
ABAnna Bolkowska
Anna Bolkowska
ABAndrzej A. Bochenek
Andrzej A. Bochenek
Background. Previous reports provided inconsistent data on the occurrence of postoperative delirium and emphasized its considerable impact on outcome. This study sought to evaluate the incidence and predictors of delirium, together with its relation to cerebral ischemia in a large cohort of cardiac surgery patients in a tertiary high-volume center.Methods and Results. Consecutive patients (n=8792) were prospectively enrolled from 2003 to 2008. Exclusion criteria were history of psychiatric disorders, use of psychoactive drugs, alcohol abuse, and data incompleteness. Finally, 5781 patients were analyzed in terms of 100 perioperative patient-specific and treatment variables. The incidence of postoperative delirium (DSM IV criteria) was 4.1% and it coexisted with cerebral ischemia in 1.1% of patients. In bivariate analysis, 49 variables were significantly linked to postoperative delirium. Multivariate analysis confirmed that delirium was independently associated with postoperative stroke (logistic odds ratio (logOR) = 2.862,P=0.004), any blood transfusions (logOR = 4.178,P<0.0001), age > 65 years (logOR = 2.417,P=0.002), carotid artery stenosis (logOR = 2.15,P=0.01), urgent/emergent surgery (logOR = 1.982,P=0.02), fasting glucose level, intraoperative oxygen partial pressure fluctuations, and hematocrit. Area under ROC curve for the model was 0.8933.Conclusions. Early identification of nonpsychiatric perioperative determinants of delirium facilitates its diagnosis and might help develop preventive strategies to improve long-term outcome after cardiac surgery procedures.

15 July 2023 in European Heart Journal
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Journal Article
Closed access
KPKonrad Pieszko
Konrad Pieszko
JHJarosław Hiczkiewicz
Jarosław Hiczkiewicz
KŁKatarzyna Łojewska
Katarzyna Łojewska
Beata Uziębło-ŻyczkowskaBeata Uziębło-Życzkowska
Beata Uziębło-Życzkowska
Paweł KrzesińskiPaweł Krzesiński
Paweł Krzesiński
PSPiotr J Slomka
Piotr J Slomka
Aims: Transoesophageal echocardiography (TOE) is often performed before catheter ablation or cardioversion to rule out the presence of left atrial appendage thrombus (LAT) in patients on chronic oral anticoagulation (OAC), despite associated discomfort. A machine learning model [LAT-artificial intelligence (AI)] was developed to predict the presence of LAT based on clinical and transthoracic echocardiography (TTE) features. Methods and results: Data from a 13-site prospective registry of patients who underwent TOE before cardioversion or catheter ablation were used. LAT-AI was trained to predict LAT using data from 12 sites (n = 2827) and tested externally in patients on chronic OAC from two sites (n = 1284). Areas under the receiver operating characteristic curve (AUC) of LAT-AI were compared with that of left ventricular ejection fraction (LVEF) and CHA2DS2-VASc score. A decision threshold allowing for a 99% negative predictive value was defined in the development cohort. A protocol where TOE in patients on chronic OAC is performed depending on the LAT-AI score was validated in the external cohort. In the external testing cohort, LAT was found in 5.5% of patients. LAT-AI achieved an AUC of 0.85 [95% confidence interval (CI): 0.82–0.89], outperforming LVEF (0.81, 95% CI 0.76–0.86, P < .0001) and CHA2DS2-VASc score (0.69, 95% CI: 0.63–0.7, P < .0001) in the entire external cohort. Based on the proposed protocol, 40% of patients on chronic OAC from the external cohort would safely avoid TOE. Conclusion: LAT-AI allows accurate prediction of LAT. A LAT-AI-based protocol could be used to guide the decision to perform TOE despite chronic OAC.

1 September 2021 in Circulation: Cardiovascular Interventions
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Journal Article
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WWWojciech Wańha
Wojciech Wańha
JBJacek Bil
Jacek Bil
Rafał JanuszekRafał Januszek
Rafał Januszek
NGNatasza Gilis-Malinowska
Natasza Gilis-Malinowska
TFTomasz Figatowski
Tomasz Figatowski
WWWojciech Wojakowski
Wojciech Wojakowski
Background: Data regarding the use of percutaneous coronary intervention with drug-eluting balloons (DEB) versus thin-strut drug-eluting stents (thin-DES) for treating DES in-stent restenosis in everyday clinical practice is scarce. Our goal was to evaluate the efficacy and safety profile of DEB versus thin-DES in DES in-stent restenosis. Methods: Consecutive patients with DES in-stent restenosis who underwent percutaneous coronary intervention between 2008 and 2019 entered the multicenter DEB-DRAGON Registry with a follow-up of 3 years. Patients who received DEB at the index procedure (n=557, 49.9%) were compared with those who received thin-DES (n=560, 50.1%). Results: Analysis of the unmatched cohort revealed lower rates of target lesion revascularization (9.1% versus 13.6%; hazard ratio [HR], 0.58 [95% CI, 0.41–0.83], P =0.003), target vessel revascularization (11.8% versus 16.7%; HR, 0.62 [95% CI, 0.45–0.84], P =0.003) and device-oriented composite end point, defined as a composite of cardiac death, target lesion revascularization, and target vessel myocardial infarction (12.7% versus 16.0%; HR, 0.69 [95% CI, 0.50–0.94], P =0.018) in the thin-DES group compared with the DEB group. The incidence of cardiac death, target vessel-myocardial infarction, and myocardial infarction were similar in both groups. However, after propensity score matching, there were no significant differences in target lesion revascularization (11.2% versus 11.2%; HR, 0.91 [95% CI, 0.55–1.51], P =0.707), target vessel revascularization (13.4% versus 14.2%; HR, 0.86 [95% CI, 0.55–1.36], P =0.523), and device-oriented composite end point (14.2% versus 14.2%; HR, 0.91 [95% CI, 0.58–1.42], P =0.667) between the thin-DES and DEB group, respectively. Conclusions: This analysis of a real-life registry revealed similar long-term outcomes of thin-DES and DEB in DES in-stent restenosis regarding target lesion revascularization, myocardial infarction, cardiac death, and device-oriented composite end point. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT04415216.