The impact of the coronavirus pandemic on patients hospitalized due to acute coronary syndrome.

The coronavirus disease 2019 (COVID-19) pandemic significantly increased mortality worldwide. However, only part of the excess mortality is related directly to the infection. Local healthcare accessibility, time to reach medical care and patients' reluctance to seek medical aid strongly affected the treatment results in many fields.

Safety and feasibility of minimally invasive coronary artery bypass surgery early after drug-eluting stent implantation due to acute coronary syndrome.

Background: The evidence on performing minimally invasive coronary artery surgery early after drug-eluting stent (DES) implantation due to acute coronary syndrome (ACS) is limited.

Aim: The study aimed to determine the safety and feasibility of this approach.

Methods: This registry included 115 (78% male) patients treated from 2013 to 2018, who underwent non-left anterior descending (LAD) percutaneous coronary intervention (PCI) due to ACS with contemporary DES implantation (39% diagnosed with myocardial infarction at baseline), followed by endoscopic atraumatic coronary artery bypass (EACAB) surgery within 180 days, after temporary P2Y12 inhibitor discontinuation.

Incidence and course of acute coronary syndrome cases after the first wave of the COVID-19 pandemic.

Background: The collateral damage caused by the COVID-19 pandemic affected cardiovascular disease patients, mainly acute coronary syndrome (ACS) cases. Additionally, lockdown caused treatment-related concerns and reluctance to seek medical help, factors that can delay treatment.

Aim: We aimed to analyze the incidence and course of ACS after the first COVID-19 wave.

One-stage hybrid coronary revascularization for the treatment of multivessel coronary artery disease- Periprocedural and long-term results from the "HYBRID-COR" feasibility study.

Background: The constant growth of interest in hybrid coronary artery revascularization (HCR) is apparent. Yet, few studies report outcomes of the one-stage HCR. Consequently, the status of such procedures is not adequately supported in clinical guidelines.

The impact of first wave of the SARS-CoV-2 2019 pandemic in Poland on characteristics and outcomes of patients hospitalized due to stable coronary artery disease.

Background: An investigation of baseline characteristics, treatment, and outcomes in patients with stable coronary disease after the first wave of the severe acute respiratory syndrome coronavirus 2 (SARS- -CoV-2) pandemic may provide valuable data and is beneficial for public health strategy in upcoming years.

Methods: A multi-institutional registry, including 10 cardiology departments, was searched for patients admitted from June 2020 to October 2020. The baseline characteristics (age, gender, symptoms, comorbidities), treatment (non-invasive, invasive, surgical), and hospitalization outcome (mortality, myocardial infarction, stroke, composite endpoint - major adverse cardiac and cerebrovascular events [MACCE]) were evaluated.

Del Nido versus Bretschneider cardioplegic solution in valve replacement for severe aortic stenosis - a case-control pilot study.

Introduction: The adequate protection provided by the del Nido cardioplegia has already been proven in trials comparing the solution with blood cardioplegia. However, evidence regarding comparison to the Bretschneider HTK solution is limited.

Aim: To determine the efficacy of the del Nido cardioplegia when compared to Bretschneider HTK solution in patients undergoing aortic valve replacement for severe aortic stenosis.

One-shot cardioplegia for minimally invasive mitral valve repair-a comparison of del Nido and Bretschneider Histidine-Tryptophan-Ketoglutarate solutions.

Background: Minimally invasive procedures are demanding in terms of cardioprotection. In many leading centres Bretschneider HTK solution is used for mitral valve surgery. The study was designed to provide comparison of the del Nido and Bretschneider HTK protocol.

The impact of del Nido cardioplegia solution on blood morphology parameters.

Background: Crystalloid cardioplegic solutions are believed to reduce hemoglobin significantly and increase the transfusion rate. However, recent reports indicate that the del Nido cardioplegia may preserve blood morphology parameters.

Methods: In "The del Nido versus cold blood cardioplegia in aortic valve Replacement" trial patients undergoing aortic valve replacement were randomized into the del Nido (DN) or cold blood cardioplegia (CB) group.

Age- and gender-related differences in the del Nido cardioprotection protocol.

Background: The evidence regarding the impact of patient's age and gender on del Nido cardioplegia cadio-protection capability in adults is strongly limited.

Methods: A group of 75 patients undergoing aortic valve replacement (AVR) with del Nido cardioplegia was divided into Group 1 (male) and Group 2 (female). Creatine kinase (CK-MB isoenzyme) and high sensitivity troponin T (hs-TnT) values at 24 hours and 48 hours, occurrence of cardiac activity during crossclamp and ventricular fibrillation (VF) during reperfusion were compared.

Long-term echocardiographic evaluation of asymptomatic patients undergoing minimally invasive valve repair for severe primary mitral regurgitation.

Background: Asymptomatic patients with newly diagnosed severe primary mitral regurgitation (MR) may not be candidates for surgery according to clinical guidelines.

Aims: We aimed to determine whether asymptomatic patients with severe primary MR benefit from minimally invasive mitral valve repair.

Methods: This prospective registry study assessed consecutive asymptomatic patients who underwent mitral valve repair using right minithoracotomy.

Short and long-term results of endoscopic atraumatic coronary artery off-pump bypass grafting in patients with left anterior descending artery stenosis.

Background: To perform a retrospective analysis of patients who underwent endoscopic atraumatic coronary artery off-pump bypass grafting (EACAB) in a single center over a period of 11 years.

Methods: Data was acquired from the hospital registry and patient medical records. In order to determine changes in clinical profile, patients were subdivided into three groups regarding year of surgery: 1998-2002 (group 1), 2003-2005 (group 2), 2006-2009 (group 3).

Coronary endarterectomy in left anterior descending artery combined with coronary artery bypass grafting - midterm mortality and morbidity.

Introduction: Completeness of myocardial revascularization is essential in surgical treatment of coronary artery disease. The aim of this study is to determine the effectiveness of coronary endarterectomy as an adjunct to coronary artery bypass grafting (CABG) in the most difficult cases.

Material And Methods: Among 1559 patients who had CABG in our department, the cases of 17 who underwent an adjunct left anterior descending endarterectomy were analyzed.