Publications by authors named "Giuseppe Maria Raffa"

Article Synopsis
  • The study looks at how the location where doctors put tubes in the arteries for heart support affects brain health after surgery.
  • They compared three methods: using the aorta, subclavian/axillary arteries, and femoral artery to see which had the least brain problems.
  • Results showed that patients using the subclavian/axillary method had more major brain issues compared to the others, and also had more seizures after the surgery.
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  • Left atrial appendage closure (LAAC) during heart surgery for atrial fibrillation (AF) patients may lower long-term stroke risk and mortality, but mixed evidence exists regarding its effectiveness in non-AF patients.
  • A review of 25 studies indicated that while LAAC reduced early stroke risk by 19% and late stroke risk by 13%, it showed no advantages for patients without AF.
  • Overall, LAAC appears beneficial in patients with preoperative AF, suggesting it could reduce long-term mortality and stroke rates, but there’s insufficient evidence to recommend it for those without AF.
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  • ECLS cannulation in post-cardiotomy patients is uncommon in general wards, with only 39 out of 2058 patients studied undergoing the procedure while at the hospital.
  • The majority of these patients faced complications like acute kidney injury and arrhythmias, with a high in-hospital mortality rate of 84.6%, predominantly due to persistent heart failure.
  • Findings suggest that ECLS cannulation mainly affects low-risk patients who experience cardiac arrest post-surgery, indicating a need for further research into improving outcomes.
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Detection of high glycated hemoglobin (A1c) is associated with worse postoperative outcomes, including predisposition to develop systemic and local infectious events. Diabetes and infectious Outcomes in Cardiac Surgery (DOCS) study is a retrospective case-control study aimed to assess in DM and non-DM cardiac surgery patients if a new screening and management model, consisting of systematic A1c evaluation followed by a specialized DM consult, could reduce perioperative infections and 30-days mortality. Effective July 2021, all patients admitted to the cardiac surgery of IRCCS ISMETT were tested for A1c.

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  • * Conducted across 34 centers globally from 2000 to 2020, the study included over 2,000 adult patients split into different ECMO duration groups, revealing higher complications and mortality rates associated with longer ECMO durations.
  • * The findings suggest that while most in-hospital complications increase with ECMO duration, post-discharge survival rates remain similar across groups, with specific risk factors like age and pre-existing conditions affecting long-term survival for those on ECMO longer than 7 days.
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Objectives: Although cardiogenic shock requiring extracorporeal life support after cardiac surgery is associated with high mortality, the impact of sex on outcomes of postcardiotomy extracorporeal life support remains unclear with conflicting results in the literature. We compare patient characteristics, in-hospital outcomes, and overall survival between females and males requiring postcardiotomy extracorporeal life support.

Methods: This retrospective, multicenter (34 centers), observational study included adults requiring postcardiotomy extracorporeal life support between 2000 and 2020.

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Despite evidence suggesting the benefit of prophylactic regional antibiotic delivery (RAD) to sternal edges during cardiac surgery, it is seldom performed in clinical practice. The value of topical vancomycin and gentamicin for sternal wound infections (SWI) prophylaxis was further questioned by recent studies including randomized controlled trials (RCTs). The aim of this systematic review and meta-analysis was to comprehensively assess the safety and effectiveness of RAD to reduce the risk of SWI.

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Background: Surgical ablation for atrial fibrillation at the time of isolated coronary artery bypass grafting is reluctantly attempted. Meanwhile, complete revascularization is not always possible in these patients. We attempted to counterbalance the long-term benefits of surgical ablation against the risks of incomplete revascularization.

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Article Synopsis
  • The study examines the use of extracorporeal membrane oxygenation (ECMO) in adults experiencing cardiogenic shock after heart surgery, noting significant in-hospital mortality rates (60.5%).
  • Conducted across 34 centers from 2000 to 2020, the research analyzes patient characteristics and factors affecting both in-hospital and long-term survival.
  • Despite high initial mortality, approximately 66% of hospital survivors can expect to live for a decade post-discharge, with age and certain postoperative complications influencing long-term outcomes.
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  • Routine use of topical vancomycin after cardiac surgery is often overlooked, despite it being recommended in guidelines and questioned in recent trials for its effectiveness against sternal wound infections.
  • An analysis of 20 studies, including both randomized controlled trials and observational studies, showed that topical vancomycin reduced the risk of sternal wound infections by nearly 70%, with benefits seen for both superficial and deep infections.
  • The treatment's effectiveness was particularly pronounced in patients with diabetes, and no resistance to vancomycin or methicillin was found, leading to a significant decrease in gram-negative cultures as well.
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  • Postcardiotomy venoarterial extracorporeal membrane oxygenation (VA ECMO) shows a gap between the rates of successful weaning from the device and actual survival after discharge, prompting an analysis of patient outcomes.
  • A study of 2058 adult patients revealed that 62.7% could be weaned off VA ECMO, but only 39.6% survived to be discharged; major causes of death included multiorgan failure and persistent heart failure, with significant differences in mortality rates during and after ECMO support.
  • Key risk factors for on-ECMO mortality included emergency surgery and preoperative cardiac issues, while postweaning mortality was linked to complications like diabetes and septic shock.
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  • * Out of 32 responding centers, half had dedicated ECLS specialists, and 81.3% utilized additional mechanical circulatory support, but anticoagulation protocols varied widely without consistent guidelines.
  • * Findings indicate a significant diversity in clinical practices for PC-ECLS management, highlighting the need for standardized protocols and better use of existing evidence to improve care.
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Objectives: Postcardiotomy extracorporeal membrane oxygenation (ECMO) can be initiated intraoperatively or postoperatively based on indications, settings, patient profile, and conditions. The topic of implantation timing only recently gained attention from the clinical community. We compare patient characteristics as well as in-hospital and long-term survival between intraoperative and postoperative ECMO.

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  • Obesity is a significant concern in cardiac surgery, particularly for patients needing postcardiotomy V-A ECMO, but its impact on their outcomes is uncertain.
  • The PELS-1 study analyzed data from 2046 patients across 36 centers over 20 years, categorizing them by BMI and measuring in-hospital mortality and other major adverse events.
  • Findings revealed no significant difference in in-hospital mortality rates among different BMI categories, suggesting BMI should not be used to assess risk in these patients undergoing V-A ECMO.
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  • Transcatheter aortic valve implantation (TAVI) is an alternative to traditional surgery for patients with aortic stenosis, with new valve designs like Medtronic's Evolut PRO aiming to improve patient outcomes.
  • A systematic review and meta-analysis compared the new Evolut PRO valve with its predecessor, the Evolut R, using data from 11 studies involving over 12,000 patients.
  • Findings revealed that both valves had similar overall outcomes, but the Evolut PRO significantly reduced the risk of moderate-to-severe paravalvular leaks and major bleeding compared to the Evolut R.
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Objective: Preoperative atrial fibrillation (AF) increases risk of stroke, heart failure, and all-cause mortality after cardiac surgery. Despite encouraging results and guideline recommendations, surgical ablation (SA) for AF concomitant with other heart surgery remains low. In the current study we aimed to address the long-term mortality after SA concomitant with cardiac surgery.

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Objectives: Although endorsed by international guidelines, complete revascularization (CR) with Coronary Artery Bypass Grafting (CABG) remains underused. In higher-risk patients such as those with pre-operative atrial fibrillation (AF), the effects of CR are not well studied.

Methods: We analyzed patients' data from the HEIST (HEart surgery In AF and Supraventricular Tachycardia) registry.

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Background: Hypertrophic obstructive cardiomyopathy (HOCM) is a heterogeneous disease with different clinical presentations, albeit producing similar dismal long-term outcomes if left untreated. Several approaches are available for the treatment of HOCM; e.g.

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Article Synopsis
  • Atrial fibrillation (AF) is a common condition among patients undergoing cardiac surgery, increasing the risk of postoperative arrhythmias and the need for permanent pacemaker (PPM) implantation.
  • A study of nearly 12,000 patients revealed that 2.5% required PPM after valve surgery, with higher rates in certain types of surgeries.
  • Long-term follow-up indicated that PPM implantation did not lead to higher mortality rates, while surgical ablation (SA) was associated with improved survival regardless of PPM status.
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Introduction: Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has recently and rapidly emerged and developed into a global pandemic. In SARS-CoV-2 patients with refractory respiratory failure, there may be a role for veno-venous extracorporeal membrane oxygenation (V-V ECMO) as a life-saving rescue intervention.

Methods: This review summarizes the evidence gathered until June 12, 2020; electronic databases were screened for pertinent reports on coronavirus and V-V ECMO.

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Introduction: Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has recently and rapidly emerged and developed into a global pandemic. Through the renin-angiotensin system, the virus may impact the lung circulation, but the expression on endothelium may conduct to its activation and further systemic damage. While precise mechanisms underlying these phenomena remain to be further clarified, the understanding of the disease, its clinical course, as well as its immunological and hematological implications is of paramount importance in this phase of the pandemic.

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Objectives: The aim of this study was to quantify and understand the unloading effect of percutaneous balloon atrial septostomy (BAS) in acute cardiogenic shock (CS) treated with venoarterial (VA) extracorporeal membranous oxygenation (ECMO).

Background: In CS treated with VA ECMO, increased left ventricular (LV) afterload is observed that commonly interferes with myocardial recovery or even promotes further LV deterioration. Several techniques for LV unloading exist, but the optimal strategy and the actual extent of such procedures have not been fully disclosed.

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