[Prevalence and evolution of left ventricular insufficiency in patients undergoing severe aortic insufficiency].

Introduction: Aortic insufficiency (AR) evolves during follow-up with dilation of the left chambers and eventually with deterioration of the ejection fraction (EF). Treatment as well as evolution of EF after the procedure remains uncertain. The objective of the following work was to establish the prevalence of ventricular dysfunction and evaluate the evolution of EF at 6 months in patients with aortic valve replacement (AVR) due to AR.

[Cardiogenic shock assisted with venoarterial extracorporeal membrane oxygenation: experience of an Argentine institution].

Introduction: Cardiogenic shock carries a mortality rate of 40-50%. In cases that progress unfavorably despite pharmacological treatment, ventricular assist devices such as venoarterial extracorporeal membrane oxygenation play a prominent role. Although two recent controlled clinical trials have been published, the primary source of information remains observational studies, which are notably scarce in Argentina.

Surgical aortic valve replacement in patients with reduced ejection fraction. Prevalence and follow-up.

Introduction: Limited information exists on the prevalence and outcomes of patients undergoing surgical aortic valve replacement (SAVR) for aortic stenosis (AS) with reduced left ventricular ejection fraction (LVEF). This study aims to describe the number of AS patients undergoing SAVR with LVEF less than 55 % and quantify LVEF improvement at follow-up.

Material And Methods: We analyzed patients undergoing SAVR with LVEF less than 55 % and the number of patients that improved the LVEF at 6 months.

[Etiology and evolution of anemia in patients submitted to cardiovascular surgery].

Introduction: Anemia is associated with increased mortality in patients undergoing major surgeries.

Objective: The aim of this study is to evaluate the prevalence of anemia in the preoperative period of cardiovascular surgery, its postoperative incidence and its evolution during the first month in our setting.

Methods: A prospective cohort study was carried out in which all patients undergoing central cardiovascular surgery operated during the period 09/01/2021-09/01/2022 in a university hospital were included.

[Extracorporeal membrane oxygenation in COVID-19].

Introduction: The role of the use of Extracorporeal Membrane Oxygenation (ECMO) in patients with coronavirus disease (COVID-19) is under discussion. Whereas in patients with Acute Respiratory Distress Syndrome (ARDS) the ECMO is a usual rescue measure used to optimize the oxygenation as a bridge to pulmonary rehabilitation, in patients that have refractory hypoxemic respiratory failure with recovery potential, the use of ECMO could also be beneficial.

Objective: The purpose of this work is to report the first case of COVID-19 that required ECMO in Argentina, with a good response.

[Five-year outcomes of elective infrarenal abdominal aortic aneurysm repair at a university hospital in Argentina].

Objective: Few data about outcomes of elective infrarenal abdominal aortic aneurysm (AAA) repair in Latin America have been published. The objective of the present study is to address this aspect in our population.

Method: Retrospective cohort, in which patients with infrarenal AAA undergoing elective surgical or endovascular repair from January 2011 to May 2017 at a university hospital in Autonomous City of Buenos Aires were consecutively included.

Common Femoral Artery Stenting: Computed Tomography Angiography Based Long-Term Patency.

Background: Despite considerable morbid-mortality rates, common femoral endarterectomy is still considered the gold standard for atherosclerotic common femoral artery (CFA) disease. The aim of this study was to demonstrate computed tomography angiography based long-term patency after CFA stent placement and to analyze associated risk factors for restenosis.

Methods: A retrospective and observational study was carried out in consecutive patients treated with endovascular stent placement in CFA lesions.

Additive prognostic value of carbohydrate antigen-125 over frailty in patients undergoing transcatheter aortic valve replacement.

Background: To evaluate the additive prognostic value of myocardial, inflammatory, and renal biomarkers according to frailty status in patients undergoing transcatheter aortic valve replacement (TAVR) for aortic stenosis (AS).

Methods: A total of 111 subjects who underwent TAVR at Hospital Italiano de Buenos Aires, Argentina between January 2016 and December 2018 were retrospectively reviewed. Plasma levels of N-terminal pro-B-type natriuretic peptide (NT-proBNP), high sensitivity troponin T (hs-cTnT), C-reactive protein (CRP), cystatin-c (Cys-C) and carbohydrate antigen-125 (CA-125) were assessed prior to TAVR.

Prognostic impact of myocardial contraction fraction in patients undergoing transcatheter aortic valve replacement for aortic stenosis.

Background: Myocardial contraction fraction (MCF), a volumetric measurement of myocardial shortening, may help to improve risk stratification in patients with severe aortic stenosis (AS) referred for transcatheter aortic valve replacement (TAVR) especially in those with preserved left ventricular ejection fraction (LVEF). We investigated the association between MCF and 1-year all-cause mortality in patients with severe AS who underwent TAVR.

Methods: MCF was calculated as the ratio of stroke volume (SV) to myocardial volume.

How to create patient-specific loops for correcting mitral valve prolapse through a minimally invasive approach.

A 72-year-old woman with a 6-month history of severe mitral valve regurgitation presented at our institution with dyspnea (NYHA II-III) and left ventricular impairment (LVEF 50%). Echocardiography showed P2-P3 prolapse with chordal rupture. A posterior mitral valve repair was performed using the loop technique through a minimally invasive approach.

How to remove multiple mediastinal and pericardial hydatid cysts.

A 61-year-old male who lived for 30 years in a rural area presented chest pain of 3 months duration. Multiple hydatid cysts (Echinococcus granulosus) were diagnosed in the pericardium and the mediastinum by echocardiography and computed tomography. The cysts were removed successfully with the patient on cardiopulmonary bypass and beating heart.

[Bilateral single sesion whole lung lavage under venous-venous ECMO in a case of severe pulmonary alveolar proteinosis: five years follow up].

Unlabelled: Introduction: Pulmonary alveolar proteinosis (PAP) is a rare disease caused by accumulation of proteinaceous material in the alveolar spaces. The most common mechanism implied is the development of antibodies directed to granulocyte macrophage colony stimulating factor (GM-CSF). which inhibits activation of alveolar macrophage, thereby causing accumulation of surfactant.

Situation Awareness for Circumflex Artery Injury During Mitral Valve Surgery.

Injury of the circumflex artery (Cx) during mitral valve surgery is a rare and underrecognized life-threatening complication. A retrospective analysis of patients undergoing mitral valve operations at 2 centers was conducted. Five mitral valve operations are described.

Old Solutions for New Troubles in Complications after Thoracic Endovascular Aortic Repair.

 The authors present two cases with type B aortic dissection initially treated by endovascular stent graft who developed aortic complications posttreatment and required surgical treatment.  A 50-year-old woman and a 65-year-old man underwent endovascular treatment for thoracic aortic aneurysm associated with type B dissection and -both of them evolved with endoleak type 1. The first case was related to aortobronchial fistula, and the second one was associated with ascending aortic aneurysm.

Complex Reoperation for Late Complications After Acute Type A Aortic Dissection Surgery.

The correct management of acute Type A dissection continues to be a challenge. The primary goal is to save the patient´s life. However, the decision regarding the surgical approach determines possible later complications.

Aortic Endoprosthesis for the Treatment of Native Aortic Coarctation and Concomitant Aneurysm in an Octogenarian Patient.

We report a case of an 82-year-old female patient with native coarctation of the aorta and poststenotic aneurysm of the descending thoracic aorta. On consultation, she was receiving 4 antihypertensive drugs, and physical examination revealed nonpalpable lower-limb pulses with intermittent claudication at 50 min. Because of her age, high surgical risk and combination of lesions, endovascular treatment was suggested.