Publications by authors named "Alex Sagie"

: The prognostic significance of pulmonary venous (PV) flow reversal in degenerative mitral regurgitation (dMR) is not well-established. : We aimed to assess whether reversed PV flow is associated with adverse outcomes in patients with significant dMR. : We retrospectively analyzed consecutive patients referred to a tertiary center for evaluation of dMR of greater than moderate degree, who had normal sinus rhythm, had a left ventricular ejection fraction of above 60%, and did not suffer from any other major valvular disorders.

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: Persistent symptoms affect a subset of coronavirus disease 2019 (COVID-19) survivors. Some of these may be cardiovascular (CV)-related. : To assess the burden of objective CV morbidity among, and to explore the short-term course experienced by, COVID-19 patients with post-infectious symptomatology suspected as CV.

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Background: We have previously reported an increased risk for non-hematological malignancies in young patients with moderate or severe aortic stenosis (AS). These findings were the result of a post-hoc analysis from a large echocardiography database and needed verification. Our aim was to determine, using a different study population, whether young patients with AS are at increased risk for cancer.

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  • The study examines the incidence of fever after transcatheter aortic valve implantation (TAVI), highlighting its commonality due to inflammatory response, with significant outcomes.
  • A cohort of 802 patients from 2008-2018 was analyzed, revealing that 23.7% developed fever post-procedure, with only 32.1% linked to infections.
  • The incidence of fever decreased significantly over the years and was more common in patients with first-generation devices, vascular complications, and reduced kidney function.
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  • The study analyzed the impact of image quality on two-dimensional longitudinal strain (2DLS) measurements in diagnosing acute coronary syndromes (ACS) in emergency department patients.
  • Comparing high-quality (HighQ) and low-quality (LowQ) images from 605 patients, results showed that low image quality was linked to worse 2DLS outcomes and identified low-Q images as a predictor of abnormal 2DLS.
  • Despite higher accuracy in HighQ images, abnormal 2DLS did not prove useful for excluding ACS in either group, highlighting limitations of 2DLS in clinical settings.
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Transcatheter aortic valve implantation (TAVI) can potentially alter conduction system function due to the mechanical force applied to the conduction system by the proximal edge of the valve, particularly the CoreValve. Some reasons for post-TAVI advanced atrioventricular block have been identified. We investigated whether the degree of the motion of the basal left ventricular (LV) walls impacted the development of advanced atrioventricular block post-TAVI.

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  • The study investigates the effectiveness of left ventricular two-dimensional longitudinal strain (2DLS) analysis via echocardiography in triaging patients with chest pain suspected of acute coronary syndromes (ACS) in the emergency department.
  • Of the 605 patients analyzed, 74 were diagnosed with ACS, and while 2DLS showed some sensitivity in identifying ACS, it had low specificity and positive predictive value.
  • Ultimately, the findings indicate that 2DLS is not a reliable method for ruling out ACS in the emergency setting, suggesting the need for other diagnostic approaches.
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  • Earlier TAVI trials excluded intermediate- and low-risk patients with severe aortic stenosis, but this study assessed TAVI's safety and efficacy in this group.
  • A database of 1,327 patients treated with TAVI from 2008 to 2014 was analyzed, revealing differences in demographics and health conditions across risk levels.
  • Despite some differences in procedural complications, TAVI was found to be safe for intermediate- and low-risk patients, with significantly improved outcomes compared to high-risk patients.
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Mitral regurgitation is a common disease in patients with cardiomyopathies, constituting poor prognosis when present. In patients with an increased risk for surgery, a minimally-invasive, percutaneous procedure currently exists, in the form of an edge-to-edge repair technique using the MitraClip device. This approach allows for great flexibility in specific situations, such as in the addition of another clip when necessary, either during the procedure or after a follow-up period.

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Objectives: To investigate the in-hospital and long-term outcomes of patients at extreme age with severe symptomatic aortic stenosis (AS) who underwent transcatheter aortic valve implantation (TAVI).

Methods: A total of 276 consecutive patients with a mean age of 82.2 ± 5.

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Background And Aim Of The Study: Tricuspid valve replacement (TVR) is considered a high-risk operation. The study aim was to analyze the authors' eight-year experience with TVR and to characterize the specific risk factors for this operation.

Methods: Between January 2005 and August 2012, a total of 67 patients (46 females, 21 males; mean age 58 +/- 14 years; range: 25-86 years) underwent TVR at the authors' center.

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Objective: Transcatheter aortic valve implantation (TAVI) is occasionally associated with stroke and silent cerebral ischemia, which may affect cognitive and functional performance. The aim of this study was to evaluate the changes in cognitive performance and functional status following TAVI.

Methods: We performed a comprehensive prospective functional, cognitive and quality of life (QOL) evaluation in consecutive patients who underwent TAVI using the CoreValve device (Medtronic Inc.

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Objectives: This study sought to explore the frequency and prognostic implications of infectious and noninfectious fever following transcatheter aortic valve implantation (TAVI).

Methods: We performed a retrospective cohort study including 194 consecutive patients who underwent TAVI at our institution. We identified and characterized all patients who developed fever within the first 72 h following the procedure.

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Background And Aim Of The Study: Replacement of the aortic valve for moderate aortic regurgitation (AR) as an adjunct to another cardiac surgery, primarily for coronary artery bypass grafting (CABG) or mitral valve replacement or repair, remains the subject of much debate. The study aim was to monitor the progression rate of moderate AR by means of echocardiography, and to reveal the need for future surgical intervention.

Methods: A total of 262 consecutive patients (162 males, 100 females; mean age 65 +/- 15 years; range: 21-93 years) with moderate AR and no more than mild aortic stenosis, were followed for a mean of 42 +/- 31 months.

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In recent years, transcatheter aortic valve replacement (TAVR) has emerged as a revolutionary alternative for surgical aortic valve replacement (SAVR) for the treatment of severe symptomatic aortic stenosis in patients at high risk for surgery. Prosthetic aortic valve endocarditis is a serious complication after SAVR with high morbidity and mortality. Although numerous TAVR procedures have been performed worldwide, infective endocarditis (IE) after TAVR was reported in the literature in few cases only and in 0% to 2.

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Background And Aim Of The Study: Patient gender can affect not only the clinical manifestations of coronary artery disease (CAD) but also the clinician's interpretation of the symptoms and results of exercise stress tests for management decisions. This may be true also for aortic stenosis (AS), given its many shared features with CAD and similar symptom-based management. The study aim was to evaluate the effect of gender on the assessment of severe asymptomatic AS by exercise stress echocardiography (ESE).

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Background: We examined the feasibility of estimating left ventricular ejection fraction (LVEF) by a novel acoustic-based device [vibration response imaging (VRI); Deep Breeze].

Methods: One hundred and forty-one subjects (117 patients and 24 healthy volunteers; age 55 ± 15 years, 82% men) were examined by both VRI and echocardiography. LVEF was determined by echocardiography (echo-LVEF) using the biplane Simpson's method.

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Background: The prevalence of aortic stenosis increases with advancing age. Once symptoms occur the prognosis in patients with severe aortic stenosis is poor. The current and recommended treatment of choice for these patients is surgical aortic valve replacement.

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Background: Left atrial volume and exercise capacity are strong predictors of cardiovascular risk. Decreased exercise capacity is expected when LAV is increased due to its association with abnormal left ventricular filling pressure. However, LAV enlargement is expected in chronic mitral regurgitation as well.

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Cardiotoxicity associated with doxorubicin (DOX) treatment limits the therapeutic efficiency of this drug against cancer. 2-Chloro-N(6)-(3-iodobenzyl)adenosine-5'-N-methyluronamide (Cl-IB-MECA), a selective agonist of A(3) adenosine receptor (A(3)R), reduces DOX toxicity in newborn rat cultured cardiomyocytes. The study's aim was to determine whether the protection demonstrated by Cl-IB-MECA attenuates cardiac depression in vivo.

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Obstructive prosthetic valve thrombosis is a serious complication in patients with prosthetic heart valves. It should be suspected in patients with worsening functional class, embolic phenomena, and inadequate anticoagulation. TTE is very informative and the most frequent modality to begin with.

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Myocardial injury, developed after a period of ischemia/reperfusion (I/R) results in the destruction of functional heart tissue, this being replaced by scar tissue. Intracellular signaling pathways mediating cardiomyocyte death are partially understood and involve the activation of Ras. p38-MAPK, JNK and Mst-1 are downstream effectors of Ras protein.

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Article Synopsis
  • Hemolysis can be a serious complication of prosthetic heart valves, often linked to structural issues or leaks.
  • Mild hemolysis is common with mechanical valves, while severe cases are rare and suggest leaks around the valve.
  • Treatment options include medical therapies, transcatheter procedures, and surgery, with surgery being the preferred choice for severe cases.
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Tricuspid regurgitation (TR) in patients with mitral valve (MV) disease is associated with poor outcome and predicts poor survival, heart failure, and reduced functional capacity. It is common if left untreated after MV replacement mainly in rheumatic patients, but it is also common in patients with ischemic mitral regurgitation. It is less common, however, in those with degenerative mitral regurgitation.

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Synopsis of recent research by authors named "Alex Sagie"

  • - Recent research by Alex Sagie mainly focuses on cardiovascular conditions, including degenerative mitral regurgitation, aortic stenosis, and complications following transcatheter aortic valve implantation (TAVI), with an emphasis on the prognostic significance and associated risks in different patient populations.
  • - Findings indicate that pulmonary venous flow reversal may serve as a significant prognostic marker in patients with degenerative mitral regurgitation, while also revealing an increased risk of non-hematological cancers in young patients with aortic stenosis.
  • - Another aspect of Sagie's work addresses the impact of long COVID on cardiovascular health, stressing the importance of evaluating cardiovascular morbidity in patients post-COVID-19 and highlighting a gap in understanding clinical outcomes related to the virus.