Infective Endocarditis by Species-A Narrative Review.

Infective endocarditis (IE) is a disease that may cause significant morbidity and mortality. IE is classically caused by Gram-positive microorganisms; however, Gram-negative bacteria may seldom also be the cause. species cause zoonosis and may also infect humans, mainly causing gastrointestinal infection by or invasive disease by , such as bacteremia, sepsis, meningitis, or vascular infection.

Prolonged survival with mitral valve plasty for acute mitral regurgitation due to mitral valve dysplasia and chordal rupture in a young small dog: A case report.

Unlabelled: : We aimed to report the second case of mitral valve plasty (MVP) for acute mitral regurgitation (MR) due to mitral valve dysplasia in a young small dog.

Case Description: A 5-month-old female Jack Russell, weighing 3.5 kg, presented with dyspnea and collapse upon excitation.

Presurgery and postsurgery: advancements in artificial intelligence and machine learning models for enhancing patient management in infective endocarditis.

Infective endocarditis (IE) is a severe infection of the inner lining of the heart, known as the endocardium. It is characterized by a range of symptoms and has a complicated pattern of occurrence, leading to a significant number of deaths. IE poses significant diagnostic and treatment difficulties.

F-FDG PET CT in cardiac device infections - A Case series.

With the increasing number of interventional cardiology procedures, the number of cardiac device infections (including pacemakers, prosthetic valves, coronary and aortic stents) have also increased. These infections can cause significant morbidity and can even lead to mortality if not managed promptly. If suspected clinically the first-line imaging modality is Trans-Thoracic Echocardiography, while Transesophageal Echocardiography is also used in selected cases.

Retrograde coronary venous ethanol ablation for ventricular tachycardia in a patient with inaccessible substrate due to previous surgery.

Introduction: Catheter-based radiofrequency (RF) ablation is generally regarded as the standard approach for patients with ventricular tachycardia (VT) refractory to antiarrhythmic drug therapy and may be considered as a first-line approach when there is a preference to avoid these agents. Patients with a history of cardiac surgery may have VT substrate inaccessible to catheter ablation due to intervening prosthetic materials or scar.

Methods And Results: This article describes a 55-year-old patient with a history of surgically repaired subvalvular aortic stenosis and subsequent valve-sparing root replacement who presented with sustained VT.

Hemodynamic effects of pulsatile frequency of right ventricular assist device (RVAD) on pulmonary perfusion: a simulation study.

Right ventricular assist devices (RVADs) have been extensively used to provide hemodynamic support for patients with end-stage right heart (RV) failure. However, conventional in-parallel RVADs can lead to an elevation of pulmonary artery (PA) pressure, consequently increasing the right ventricular (RV) afterload, which is unfavorable for the relaxation of cardiac muscles and reduction of valve complications. The aim of this study is to investigate the hemodynamic effects of the pulsatile frequency of the RVAD on pulmonary artery.

Impact of Extracellular Matrix Injury on the Calcification of Artificial Bovine Pericardial Leaflets: An Experimental Study.

To investigate the role of extracellular matrix (ECM) injury in bioprosthetic valve calcification, we constructed an ECM damage model by applying a 15 N stress to the bovine pericardium sample in both transverse and longitudinal directions after tissue cross-linking, whereas no stress was applied in the control group. Then we implanted two pieces of bovine pericardium on both sides of the dorsal midline in Wistar rats from both groups and measured the calcium content of the implanted bovine pericardium. The results showed that the calcium content of experimental group was significantly higher than that of control group ( p < 0.

Infective Endocarditis Caused by in a Patient with Bioprosthetic Aortic Valve: A Case Report and Literature Review.

Background: Infective endocarditis caused by is exceedingly rare, with only limited cases reported. Here, we present the first documented case of prosthetic valve endocarditis attributed to .

Case Presentation: A 40-year-old Chinese female was admitted with a 45-day history of intermittent fever.

Computational haemodynamics for pulmonary valve replacement by means of a reduced fluid-structure interaction model.

Pulmonary valve replacement (PVR) consists of substituting a patient's original valve with a prosthetic one, primarily addressing pulmonary valve insufficiency, which is crucially relevant in Tetralogy of Fallot repairment. While extensive clinical and computational literature on aortic and mitral valve replacements is available, PVR's post-procedural haemodynamics in the pulmonary artery and the impact of prosthetic valve dynamics remain significantly understudied. Addressing this gap, we introduce a reduced Fluid-Structure Interaction (rFSI) model, applied for the first time to the pulmonary valve.

Aortic valved homograft degeneration: surgical or transcatheter approach for repeat aortic valve replacement?

Objectives: Aortic valved allografts (homografts) have been used alternatively to mechanical or biological valve prostheses in expectation of better durability; however, homograft valves do degenerate, and redo procedures have proven challenging due to heavy wall calcification. The aim of the study was to compare the outcome of open surgical (SAVR) and transcatheter aortic valve replacement (TAVR) in degenerated homografts.

Methods: Between 1993 and 2022, 81 patients underwent repeat aortic valve procedures having previously received an aortic homograft.

The double barrel Impella exchange: A reliable method for uninterrupted mechanical circulatory support.

Classic Impella exchange interrupts flow when the old device is pulled into the aorta before advancing the new device across the aortic valve, threatening circulatory collapse and loss of left ventricular access. In "double barrel," uninterrupted Impella exchange, the new device is placed into the ventricle alongside the old, where flow is first transitioned completely. Of 31 consecutive patients undergoing this procedure, none experienced intraoperative cardiac arrest, and 96.

Artificial Chordae Implantation vs Posterior Leaflet Preservation: A Comparison of Midterm Results After Mitral Valve Replacement.

Background: Various techniques have been proposed for the preservation of the subvalvular apparatus (SVA) in mitral valve replacement. This study aimed to compare the midterm results of posterior leaflet preservation with the results of selective preservation of the SVA involving artificial chordae implantation in terms of left ventricular performance in patients undergoing mitral valve replacement.

Methods: In total, 127 patients were included in this study.

Material modeling and recent findings in transcatheter aortic valve implantation simulations.

Background And Objective: Transcatheter aortic valve implantation (TAVI) has significantly transformed the management of aortic valve (AV) diseases, presenting a minimally invasive option compared to traditional surgical valve replacement. Computational simulations of TAVI become more popular and offer a detailed investigation by employing patient-specific models. On the other hand, employing accurate material modeling procedures and applying basic modeling steps are crucial to determining reliable numerical results.

Comparison of Patient Outcomes Between Leadless vs Transvenous Pacemakers Following Transcatheter Aortic Valve Replacement.

Background: Evidence is limited regarding the effectiveness of leadless pacemaker implantation for conduction disturbance following transcatheter aortic valve replacement (TAVR).

Objectives: This study sought to examine the national trends in the use of leadless pacemaker implantation following TAVR and compare its performance with transvenous pacemakers.

Methods: Medicare fee-for-service beneficiaries aged ≥65 years who underwent leadless or transvenous pacemakers following TAVR between 2017 and 2020 were included.

Prosthetic valve infective endocarditis caused by : a case report.

Background: While is well known for its potential to cause acne vulgaris, postsurgical infections, and other human infections, few reports have described infections. Thus, the clinical characteristics of as an infectious disease are not well understood. Herein, we describe the characteristics of a case of prosthetic valve infective endocarditis caused by .

Epidemiological and microbial trends of infective endocarditis in western Norway: a 7-year prospective observational study.

Background: In this prospective, observational study, we aimed to investigate epidemiologic and microbial trends of infective endocarditis in western Norway.

Methods: Clinical and microbiological characteristics of 497 cases of infective endocarditis from 2016 through 2022 were investigated. Categorical data were analysed using Chi-squared tests.

Parvimonas micra-induced prosthetic valve endocarditis: a challenging case report and literature review.

Parvimonas micra, a gram-positive anaerobic bacterium, has garnered increased attention due to its role in infective endocarditis. We present a challenging prosthetic valve endocarditis caused by Parvimonas micra in a patient with a complex cardiac history involving multiple surgeries. The case highlights the difficulties in diagnosis and treatment, emphasizing the importance of advanced diagnostic techniques, including metagenomics next-generation sequencing (mNGS).

Rapid deployment aortic valve implantation in complex patients with infective endocarditis or aortic valve insufficiency.

Background: New prosthetic valves and surgical approaches that shorten operation time and improve the outcome of patients with aortic valve (AV) infective endocarditis (IE) and AV insufficiency (AVI) are crucial. The aim of this study was to evaluate the outcome of patients with AV IE or AVI treated with the EDWARDS INTUITY Rapid-Deployment AV prosthesis for this off-label indication.

Methods: This single-centre retrospective study analyzed data from patients who underwent AV replacement with the EDWARDS INTUITY Rapid-Deployment AV prosthesis for AV IE or regurgitation.