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Reunião Anual Conjunta dos Grupos de Estudo de Cirurgia Cardíaca, Doenças Valvulares e Ecocardiografia da SPC
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A. Basics
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01. History of Cardiology
02. Clinical Skills
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04. Arrhythmias, General
05. Atrial Fibrillation
06. Supraventricular Tachycardia (non-AF)
07. Syncope and Bradycardia
08. Ventricular Arrhythmias and Sudden Cardiac Death (SCD)
09. Device Therapy
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20. Congenital Heart Disease and Pediatric Cardiology
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22. Aortic Disease
23. Peripheral Vascular and Cerebrovascular Disease
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28. Risk Factors and Prevention
29. Rehabilitation and Sports Cardiology
30. Cardiovascular Disease in Special Populations
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32. Cardiovascular Nursing
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Abstract
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CLEAR FILTERS
Valve indices improvement is not followed by the longitudinal strain after aortic valve substitution
Session:
Painel 3 - Imagiologia Cardiovascular 4
Speaker:
SARA ISABEL LOPES FERNANDES
Congress:
CPC 2020
Topic:
B. Imaging
Theme:
03. Imaging
Subtheme:
03.1 Echocardiography
Session Type:
Posters
FP Number:
---
Authors:
Sara Lopes Fernandes; Beatriz Saldanha Santos; Margarida S. Cabral; Rita Ribeiro Carvalho; Luís Graça Santos; Fernando Montenegro Sá; Catarina Ferreira Ruivo; Francisco Soares; Hélia Martins; Joao Morais
Abstract
<p><strong>Introduction:</strong> There are few data regarding the impact of aortic valve intervention (AVI) in patients with severe symptomatic aortic stenosis (SAS) on left ventricular global longitudinal strain (LVGLS).</p> <p><strong>Aim: </strong>To access the impact of aortic valve intervention on valvular indices with special focus on LVGLS.</p> <p><strong>Methods:</strong> Retrospective study of patients with severe AS who underwent AVI (surgical aortic valve replacement- SAVR or transcatheter aortic valve implantation – TAVI). We collected clinical and demographical baseline characteristics and echocardiographic data pre and post AVI (mean interval of 16 ± 13 months). Normal distribution of data was assumed. Categorical variables are presented as frequencies and percentages and continuous variables as means and standard deviations. Paired samples Student T Test was used to compare means of categorical variables, and McNemar’s test was used to compare categorical variables.</p> <p><strong>Results: </strong>From a total of 74 patients with SAS, 70 (94%) underwent SAVR and 4 (6%) TAVI. Mean age was 70 ± 9 years and most patients were male (n=47, 64%). Persistent or paroxysmal atrial fibrillation was observed in 18 patients (24%) and concomitant coronary artery disease (stenosis >50%) was identified in 20 patients (27%). Dyspnoea and fatigue were the main symptoms pre intervention (77%). Mean NTproBNP before intervention was 1530 ± 5374 pg/mL. Following AVI, there was a reduction in left ventricular wall thickness (interventricular septum 15 ± 2.7 mm vs 13.3 ± 2.1 mm, p<0.001) and mass (167 ± 41 g/m2 vs 138 ± 41 g/m2, p=0.005), and expectedly a marked decrease in mean transvalvular gradient (50 ± 12 mmHg vs 12 ± 5 mmHg, p<0.001), peak velocity (4.5 ± 0.5 m/s vs 2.3 ± 0.4 m/s, p<0.001), as well as a marked improvement in aortic valve area (AVA 0.77 ± 0.17 cm2 vs 1.91 ± 1.56 cm2, p<0.001). E/e´ also improved post AVI (15 ± 5 vs 13 ± 5, p=0.043). There was no change in LV ejection fraction (57± 8 % vs 57± 7%, p=0.801) or left atrium volume (45 ± 12 ml/m2 vs 46 ± 12 ml/m2, p=0.961). LVGLS did not improve after AVI (-14.5 ± 4.3% vs -14.6 ± 4%, p=0.810), nor did LV basal longitudinal strain (-12.4 ± 3.6% vs -13 ± 5.9%, p=0.354).</p> <p><strong>Conclusions: </strong>In the current population, despite a significant reduction in valvular indices and left ventricular wall thickness, LVGLS did not improve after AVI. </p>
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