Laszlo Hadadi

Dr. Laszlo Hadadi

Emergency Institute for Cardiovascular Diseases and Transplantation, Târgu-Mureş, Mureş, Romania
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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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1 October 2022 in Diagnostics
Verified
Journal Article
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Dan Alexandru CozacDan Alexandru Cozac
Dan Alexandru Cozac
ELEva Katalin Lakatos
Eva Katalin Lakatos
ZDZoltan Demjen
Zoltan Demjen
ACAlexandru Ceamburu
Alexandru Ceamburu
PFPaul Ciprian Fișcă
Paul Ciprian Fișcă
Alina ScridonAlina Scridon
Alina Scridon
Arrhythmic and hemodynamic complications related to ST-segment elevation myocardial infarction (STEMI) represent a major clinical challenge. Several scores have been developed to predict mortality in STEMI. However, those scores almost exclusively include factors related to the acute phase of STEMI, and no score has been evaluated to date for its ability to specifically predict arrhythmic and hemodynamic complications. We, thus, aimed to assess the ability of chronic risk factors burden, as expressed by the CHA2DS2-VASc score, to predict STEMI-related arrhythmic and hemodynamic complications. Data were collected from 839 consecutive STEMI patients treated by primary percutaneous coronary interventions (pPCI). CHA2DS2-VASc and GRACE scores were calculated for all patients, and their ability to predict STEMI-related arrhythmic (i.e., new-onset atrial fibrillation (AF), ventricular tachycardia/fibrillation) and hemodynamic (i.e., cardiogenic shock, asystole) complications was assessed in univariate and multiple regression analysis. Arrhythmic and hemodynamic complications occurred in 14.8% and 10.2% of patients, respectively. Although the GRACE score outweighed the CHA2DS2-VASc score in the ability to predict STEMI-related hemodynamic complications (p < 0.0001), both scores had a similar predictive value for STEMI-related new-onset AF (p = 0.20), and both remained independent predictors of new-onset AF and of hemodynamic complications in the multiple regression analyses. A CHA2DS2-VASc score > 2 points independently predicted new-onset AF (p < 0.01) and hemodynamic complications (p = 0.04). Alongside the GRACE score, the CHA2DS2-VASc score independently predicted new-onset AF and hemodynamic complications in STEMI patients treated by pPCI. These data suggest that a combination of acute and chronic risk factors could provide additional benefit in identifying patients at risk of STEMI-related complications, who could benefit from closer follow-up and more intensive prophylactic and therapeutic strategies.

11 September 2023 in Diagnostics
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Journal Article
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ASAlexandru STAN
Alexandru STAN
PCPaul Calburean
Paul Calburean
DRDrincal Katalin Reka
Drincal Katalin Reka
MHMarius Harpa
Marius Harpa
AEAyman Elkahlout
Ayman Elkahlout
MMMarius Mărușteri
Marius Mărușteri
(1) Background: Although transcatheter aortic valve replacement (TAVR) significantly improves long-term outcomes of symptomatic severe aortic stenosis (AS) patients, long-term mortality rates are still high. The aim of our study was to identify potential inflammatory biomarkers with predictive capacity for post-TAVR adverse events from a wide panel of routine biomarkers by employing ML techniques. (2) Methods: All patients diagnosed with symptomatic severe AS and treated by TAVR since January 2016 in a tertiary center were included in the present study. Three separate analyses were performed: (a) using only inflammatory biomarkers, (b) using inflammatory biomarkers, age, creatinine, and left ventricular ejection fraction (LVEF), and (c) using all collected parameters. (3) Results: A total of 338 patients were included in the study, of which 56 (16.5%) patients died during follow-up. Inflammatory biomarkers assessed using ML techniques have predictive value for adverse events post-TAVR with an AUC-ROC of 0.743 and an AUC-PR of 0.329; most important variables were CRP, WBC count and Neu/Lym ratio. When adding age, creatinine and LVEF to inflammatory panel, the ML performance increased to an AUC-ROC of 0.860 and an AUC-PR of 0.574; even though LVEF was the most important predictor, inflammatory parameters retained their value. When using the entire dataset (inflammatory parameters and complete patient characteristics), the ML performance was the highest with an AUC-ROC of 0.916 and an AUC-PR of 0.676; in this setting, the CRP and Neu/Lym ratio were also among the most important predictors of events. (4) Conclusions: ML models identified the CRP, Neu/Lym ratio, WBC count and fibrinogen as important variables for adverse events post-TAVR.

30 August 2012 in Journal of Medical Case Reports
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Journal Article
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ITIoan Tilea
Ioan Tilea
LHLaszlo Hadadi
Laszlo Hadadi
RSRazvan C Serban
Razvan C Serban
BTBrindusa Tilea
Brindusa Tilea
Local aneurysms after surgical repair of coarctation of the aorta occur mainly in patients surgically treated by Dacron patch plasty during adulthood. The management of these patients is always problematic, with frequent complications and increased mortality rates. Percutaneous stent-graft implantation avoids the need for surgical reintervention.

1 December 2015 in Revista Romana de Medicina de Laborator
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Journal Article
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LHLaszlo Hadadi
Laszlo Hadadi
ISIoana Sus
Ioana Sus
ELEva Katalin Lakatos
Eva Katalin Lakatos
RSRazvan Constantin Serban
Razvan Constantin Serban
Alina ScridonAlina Scridon
Alina Scridon
DDDan Dobreanu
Dan Dobreanu
Coronary chronic total occlusion (CTO) is caused by organized thrombi or atherosclerotic plaque progression. The presence of a CTO is an independent predictor of mortality in patients presenting with ST-segment elevation myocardial infarction (STEMI). Platelets have a crucial role in the pathophysiology of atherosclerosis. The aim of this retrospective study was to investigate platelet indices as predictors of CTO in patients with STEMI treated with primary percutaneous coronary intervention (pPCI). A total number of 334 patients admitted for STEMI between January 2011 and December 2013 were included and divided in two groups based on the presence of CTO (48 patients in CTO+ group, 286 patients in CTO-group). Platelet count, mean platelet volume (MPV), platelet distribution width (PDW), platelet-large cell ratio (P-LCR), lymphocyte and neutrophil count determined on admission were analyzed. MPV was larger in patients with CTO compared with patients without CTO (p=0.02), as were PDW (p=0.03) and P-LCR (p=0.01). Platelet-to-lymphocyte ratio (PLT/LYM) was lower in patients with CTO: 105.2 (75.86-159.1) compared to 137 (97-188.1), p<0.01. Receiver-operator characteristic curve analysis identified an area under the curve of 0.61 (95%CI=0.57-0.67, p< 0.01) for PLT/LYM in predicting the presence of a CTO, with a cut-off value at 97.73. Lower values than this were independent predictors of a CTO in multivariate logistic regression analysis, with an Odds Ratio of 2.2 (95%CI=1.15-4.20, p=0.02). Our results support the use of platelet indices and PLT/LYM as predictors of CTO in patients presenting with STEMI.

HSHoratiu Suciu
Horatiu Suciu
AEAyman Elkahlout
Ayman Elkahlout
VNViorel Nicolae
Viorel Nicolae
FTFlavius Tomșa
Flavius Tomșa
ASAlexandru STAN
Alexandru STAN
MHMarius Harpa
Marius Harpa
Background: The aim of this study was to compare costs and clinical outcomes associated with transcatheter aortic valve implantation (TAVI) versus surgical aortic valve replacement (SAVR). A secondary analysis was performed in patients with coronary artery disease, and patients with TAVI and percutaneous coronary intervention (PCI) were compared with SAVR and coronary artery bypass grafting (CABG). Methods: All patients who underwent the TAVI or SAVR procedure for severe degenerative aortic stenosis between August 2013 and February 2025 at a tertiary cardiovascular center were selected for inclusion in the present study. Patients were excluded if there was no available follow-up or if there was a crossover between treatments (especially CABG undergoing TAVI or SAVR undergoing PCI within a 6-month timeframe). Results: A total of 2452 patients (1925 undergoing SAVR and 527 undergoing TAVI) were included. Of those, 400 underwent SAVR + CABG and 75 underwent TAVI + PCI. During a median follow-up of 2.88 (1.12–6.43) years, a total of 404 all-cause events occurred, corresponding to 4.18 deaths per 100 patient-years. TAVI was associated with higher hospitalization costs and fewer in-hospital deaths than SAVR. However, long-term survival was similar between TAVI and SAVR and between TAVI + PCI and SAVR + CABG. Interventional treatment was more cost-effective in patients with EuroSCORE > 10%, while surgical treatment was more cost-effective in patients with EuroSCORE < 10%. Conclusions: In patients who are at high surgical risk, TAVI is more cost-effective than SAVR, and TAVI + PCI is more cost-effective than SAVR + CABG. In patients who are not at high surgical risk, SAVR is more cost-effective than TAVI, and SAVR + CABG is more cost-effective than TAVI + PCI.

1 January 2017 in The Anatolian Journal of Cardiology
Verified
Journal Article
Open access
LHLaszlo Hadadi
Laszlo Hadadi
The predictive value of five risk score models containing clinical (PAMI-PMS, GRACE-GRS, and modified ACEF-ACEFm-scores), angiographic SYNTAX score (SXS) and combined Clinical SYNTAX score (CSS) variables were evaluated for the incidence of three procedural complications of primary percutaneous coronary intervention (pPCI): iatrogenic coronary artery dissection, angiographically visible distal embolization and angiographic no-reflow phenomenon. The mentioned scores and the incidence of procedural complications were retrospectively analyzed in 399 consecutive patients with acute ST-elevation myocardial infarction who underwent pPCI. Coronary dissection, distal embolization and no-reflow occurred in 39 (9.77%), 71 (17.79%), and 108 (27.07%) subjects, respectively. Coronary dissections were significantly associated with higher GRS, ACEFm, and CSS values (all p<0.05). PMS, GRS, ACEFm, and CSS were significantly higher in patients with no-reflow (all p<0.05), while distal embolization was not predicted by any of the calculated scores. In multiple logistic regression models, GRS and ACEFm remained independent predictors of both coronary dissections (OR 3.20, 95% CI 1.56-6.54, p<0.01 and OR 2.87, 95% CI 1.27-6.45, p=0.01, respectively) and no-reflow (OR 1.71, 95% CI 1.04-2.82, p=0.03 and OR 1.86, 95% CI 1.10-3.14, p=0.01, respectively). Whereas SXS failed to predict procedural complications related to pPCI, two simple, noninvasive risk models, GRS and ACEFm, independently predicted coronary dissections and no-reflow. Pre-interventional assessment of these scores may help the interventional cardiologist to prepare for procedural complications during pPCI.