Objective: The transplantation of hearts from donors who experienced intracranial bleeding (ICB) has been associated with inferior long-term survival in both single-center analyses and, more recently, with the United Network for Ogan Sharing Registry. The purpose of this study was to further explore this relationship through propensity score matching in recipients receiving donor hearts from ICB and non-ICB donors in a large national registry.
Methods: We performed a retrospective cohort analysis of the United Network for Organ Sharing Registry Organ Procurement and Transplantation Network between 2006 and 2018 for adult candidates wait-listed for isolated heart transplantation.
Allograft rejection, accompanied by a rise in proinflammatory cytokines, is a leading cause of morbidity and mortality after lung transplantation. Immunosuppressive treatments are routinely employed as an effective way to prevent rejection, however, there is still an unmet need to develop new strategies to reduce the damage caused to transplanted organs by innate inflammatory responses. Recent research has shown that activating the vagus nerve's efferent arm regulates cytokine production and improves survival in experimental conditions of cytokine excess, such as sepsis, hemorrhagic shock, ischemia-reperfusion injury, among others.
View Article and Find Full Text PDFBackground: Cardiac surgery involving cardiopulmonary bypass induces a significant systemic inflammatory response, contributing to various postoperative complications, including pulmonary dysfunction, myocardial and kidney injuries.
Objective: To investigate the effect of Nitric Oxide delivery via the cardiopulmonary bypass circuit on various postoperative outcomes.
Design: A prospective, single-centre, double-blinded, randomised controlled trial.
This study investigated modifications to the ubiquitin proteasome system (UPS) in a mouse model of type 2 diabetes mellitus (T2DM) and their relationship to heart complications. mice heart tissues were compared with mice tissues using RNA sequencing, qRT-PCR, and protein analysis to identify cardiac UPS modifications associated with diabetes. The findings unveiled a distinctive gene profile in the hearts of mice with decreased levels of mRNA and increased levels of , indicating potential cardiac dysfunction.
View Article and Find Full Text PDFAllograft rejection is a major challenge in the treatment of heart transplant recipients. The rejection is pathophysiological categorized into cellular rejection, mediated by lymphocytes and antibody-medicated rejection (AMR). We will focus on this case report on AMR, mediated by recipient antibodies, directed against donor antigens on the allograft's vascular endothelium, mostly HLA-group antigens.
View Article and Find Full Text PDFBackground: Patients with a left ventricular assist device with right ventricular failure are prioritized on the heart transplant waitlist; however, their post-transplant survival is less well characterized. We aimed to determine whether pretransplant right ventricular failure affects postoperative survival in patients with a left ventricular assist device as a bridge to transplant.
Methods: We performed a retrospective review of the 2005-2018 Organ Procurement and Transplantation Network/United Network for Organ Sharing registry for candidates aged 18 years or more waitlisted for first-time isolated heart transplantation after left ventricular assist device implantation.
Ventricular fibrillation, a life-threatening ventricular arrhythmia, may result in pulselessness, loss of consciousness and sudden cardiac death. In this case report, we describe our experience in managing a 54-year-old man with HeartMate3 left ventricular assist device (LVAD) as a bridge to transplantation due to dilated non-ischemic cardiomyopathy, presenting with incessant ventricular arrhythmia for 35 days despite multiple attempts to restore normal rhythm with external direct current cardioversion and anti-arrhythmic medications. The patient remained stable in ventricular arrhythmia with no progression to asystole, but hemodynamic collapse due to right heart failure occurred in the third week.
View Article and Find Full Text PDFObjectives: The immunogenicity of two-dose severe acute respiratory syndrome coronavirus 2 vaccine is lower among heart transplant (HTx) recipients, compared with the general population. Our aim was to assess the immunogenicity of a third-dose vaccine in HTx recipients.
Methods: This is a prospective cohort study of HTx recipients who received a third dose of the BNT162b2 vaccine.
Aims: To assess the 6 months immunogenicity to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mRNA vaccine in a population of heart transplanted (HTx) recipients and left ventricular assist device (LVAD)-supported patients.
Methods And Results: A prospective single-centre cohort study of HTx recipients and LVAD-supported patients who received a two-dose SARSCoV-2 mRNA vaccine (BNT162b2, Pfizer-BioNTech). Whole blood for anti-spike IgG (S-IgG) antibodies were drawn at 6 months after the first vaccine dose.
We aimed to describe the natural history of left ventricular assist device (LVAD)-supported patients with preimplantation significant tricuspid regurgitation (TR) in a single-center retrospective analysis of LVAD-implanted patients (2008-2019). TR severity was assessed semiqualitatively using color-Doppler flow: insignificant TR (iTR) was defined as none/mild TR and significant TR (sTR) as ≥moderate TR. Included were 121 LVAD-supported patients of which 53% (n = 64) demonstrated sTR preimplantation.
View Article and Find Full Text PDFAims: To assess the short-term immunogenicity to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mRNA vaccine in a population of heart transplant (HTx) recipients. A prospective single-centre cohort study of HTx recipients who received a two-dose SARS-CoV-2 mRNA vaccine (BNT162b2, Pfizer-BioNTech).
Methods And Results: Whole blood for anti-spike IgG (S-IgG) antibodies was drawn at days 21-26 and at days 35-40 after the first vaccine dose.
Background: Diabetic and obese patients are at higher risk of severe disease and cardiac injury in corona virus 2 (SARS-CoV-2) infections. Cellular entry of SARS-CoV-2 is mainly via the angiotensin-converting enzyme 2 (ACE2) receptor, which is highly expressed in normal hearts. There is a disagreement regarding the effect of factors such as obesity and diabetes on ACE2 expression in the human heart and whether treatment with renin-angiotensin system inhibitors or anti-diabetic medications increases ACE2 expression and subsequently the susceptibility to infection.
View Article and Find Full Text PDFAims: This study aimed to evaluate the different health-related quality of life (HR-QoL) aspects in patients with both short-term and long-term duration LVAD support at pre-specified time intervals.
Methods And Results: We performed a single-centre HR-QoL analysis of short-term and long-term LVAD-supported patients using the short version of the Kansas City Cardiomyopathy Questionnaire (KCCQ-12) and the Changes in Sexual Functioning Questionnaire along with a survey to evaluate patients' social and driving routines. Data were collected at baseline and at 6 or 12 month follow-up.
The limited regenerative capacity of the injured myocardium leads to remodeling and often heart failure. Novel therapeutic approaches are essential. Induced pluripotent stem cells (iPSC) differentiated into cardiomyocytes are a potential future therapeutics.
View Article and Find Full Text PDFBackground: Left ventricular assist devices (LVADs) are used more commonly in patients with advanced-stage heart failure. Some of these patients may require elective or urgent abdominal surgical procedures.
Objectives: To determine the outcomes of the management of LVAD-supported patients who underwent elective and urgent abdominal surgical procedures in our institution.
Background: Post-pericardiotomy syndrome (PPS) is a major cause of pericarditis, yet data on the risk of recurrence are limited, and the impact of steroids and colchicine in this context is unknown.
Objectives: To examine the effect of prednisone and colchicine on the rate of recurrence of PPS.
Methods: Medical files of patients diagnosed with PPS were reviewed to extract demographic, echocardiographic, X-ray imaging, and follow-up data.
Background: Current guidelines for choosing between revascularization modalities may not be appropriate for young patients.
Objectives: To compare outcomes and guide treatment options for patients < 40 years of age, who underwent percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) between 2008 and 2018.
Methods: Outcomes were compared for 183 consecutive patients aged < 40 years who underwent PCI or CABG between 2008 and 2018, Outcomes were compared as time to first event and as cumulative events for non-fatal outcomes.
Objectives: In this study, we aimed to determine the comparative outcomes of patients supported with continuous-flow left ventricular assist devices (LVADs): HeartMate 2 (HM2), HeartWare (HW) and HeartMate 3 (HM3) in a real-world setting.
Methods: The study was an investigator-initiated comparative retrospective analysis of patients who underwent continuous-flow LVAD implantation at our institution between 2008 and 2017. The follow-up duration was 18 months after implantation.
Unlabelled: Type 2 diabetes mellitus (DM2) leads to cardiomyopathy characterized by cardiomyocyte hypertrophy, followed by mitochondrial dysfunction and interstitial fibrosis, all of which are exacerbated by angiotensin II (AT). SIRT1 and its transcriptional coactivator target PGC-1α (peroxisome proliferator-activated receptor-γ coactivator), and heme oxygenase-1 (HO-1) modulates mitochondrial biogenesis and antioxidant protection. We have previously shown the beneficial effect of caloric restriction (CR) on diabetic cardiomyopathy through intracellular signaling pathways involving the SIRT1-PGC-1α axis.
View Article and Find Full Text PDFThe original article [1] contained an error whereby all authors' names were mistakenly inverted. This error has now been corrected.
View Article and Find Full Text PDFIntroduction: Advanced non-small cell lung cancer (NSCLC) is still a therapeutic challenge as the 5-year survival is under 30%. The optimal treatment regimen is still under debate.
Hypothesis: Neo adjuvant (NA) treatment given pre-pneumonectomy does not increase surgical complexity or peri-OP mortality while it has a potential to increase long term survival.