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AIMS: Assessing right heart function is challenging, particularly when significant tricuspid regurgitation (TR) is present. Among available echocardiographic techniques for assessment, literatures suggests that strain imaging may be more reliable and less susceptible to loading conditions. Thus, we aimed to assess the validity of RA and RV strain relative to conventional metrics as well as their utility in predicting patient outcomes in TR. METHODS: We studied 262 consecutive patients (mean age 74 ± 11.2 years, 53% male) who underwent same-day echocardiography and right heart catheterization between 2018 and 2023. We compared right heart strain to traditional metrics of RV function and subsequently correlated RA and RV strain to heart failure (HF)-related death or hospitalization, whichever came first. RESULTS: Over a mean follow-up of 34 ± 15 months, there were 103 deaths and HF hospitalizations. Both RA and RV strain were correlated with echocardiographic and invasive measures of right heart function. Across all patients, preserved RA strain was associated with lower risk of adverse outcomes (HR 0.763, 95% CI 0.618-0.943). Similarly, preserved RV strain was correlated with better outcomes, though this was only statistically significant in patients without severe TR or pulmonary hypertension (HR 2.450, 95% CI 1.244-4.825). Moreover, abnormal ratios of RV strain to pulmonary pressures and RV size were significantly correlated with adverse outcomes (p < 0.05 each). CONCLUSION: RA and RV strain are independently correlated with echocardiographic and invasive measures of cardiac function. Moreover, preserved RA and RV strain are likely associated with better clinical outcomes.
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Background: Previous literature suggests that patients with transthyretin amyloidosis (ATTR) experience a high burden of ventricular arrhythmias. Despite this evidence, optimal strategies for arrhythmia prevention and treatment remain subject to debate. Case summary: We report the case of a patient with hereditary ATTR cardiomyopathy who developed recurrent ventricular tachycardia prior to a decline in his left ventricular ejection fraction (LVEF). Although he ultimately received an intracardiac device (ICD) for secondary prevention of ventricular tachycardia, his clinical course begets the question of whether more aggressive arrhythmia prevention upfront could have prevented his global functional decline. Discussion: Given the advent of new disease-modifying therapies for ATTR, it is imperative to reconsider antiarrhythmic strategies in these patients. New decision tools are needed to decide what additional parameters (beyond LVEF ≤ 35%) may warrant ICD placement for primary prevention of ventricular arrhythmias in these patients.
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Péptidos Similares al Glucagón , Insuficiencia Cardíaca , Obesidad , Volumen Sistólico , Humanos , Insuficiencia Cardíaca/tratamiento farmacológico , Péptidos Similares al Glucagón/uso terapéutico , Obesidad/tratamiento farmacológico , Obesidad/complicaciones , Volumen Sistólico/efectos de los fármacosRESUMEN
AIMS: Aortic stenosis (AS) is causing myocardial damage and replacement is mainly indicated based on symptoms. Non-invasive estimation of myocardial work (MW) provides a less afterload-dependent too for assessing myocardial function. We sought to look at the impact of transcatheter aortic valve implantation (TAVI) on the myocardium at long-term follow-up and according to current indications. METHODS AND RESULTS: We conducted an observational, cross-sectional, single-centre study. Patients were selected based on the validated indication for a TAVI. Standardized echocardiographies were repeated. A total of 102 patients were included. The mean age was 85 years, 45% were female, 68% had high blood pressure, and 52% had a coronary disease. One-fifth was suffering from low-flow-low-gradient AS. A follow-up was performed at 22 ± 9.5 months after the TAVI. No TAVI dysfunction was observed. Left ventricular (LV) ejection fraction was stable (62 ± 8%), and global longitudinal strain had improved (-14.0 ± 3.7 vs. -16.0 ± 3.6%, P < 0.0001). No improvement of the MW parameters was noticed (LV global work index 2099 ± 692 vs. 2066 ± 706â mmHg%, P = 0.8, LV global constructive 2463 ± 736 vs. 2463 ± 676â mmHg%, P = 0.8). Global wasted work increased [214 (149; 357) vs. 247 (177; 394) mmHg%, P = 0.0008]. CONCLUSION: In a population of severe symptomatic AS patients who had undergone a TAVI, the non-invasive myocardial indices that assess the LV performance at long-term follow-up did not improve. These results are questioning the timing of the intervention and the need for more attention in the pharmacological management of these AS patients.
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Estenosis de la Válvula Aórtica , Ecocardiografía , Reemplazo de la Válvula Aórtica Transcatéter , Humanos , Femenino , Estenosis de la Válvula Aórtica/cirugía , Estenosis de la Válvula Aórtica/diagnóstico por imagen , Estenosis de la Válvula Aórtica/fisiopatología , Masculino , Reemplazo de la Válvula Aórtica Transcatéter/efectos adversos , Reemplazo de la Válvula Aórtica Transcatéter/métodos , Estudios de Seguimiento , Anciano de 80 o más Años , Estudios Transversales , Anciano , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Disfunción Ventricular Izquierda/diagnóstico por imagen , Disfunción Ventricular Izquierda/fisiopatología , Factores de Tiempo , Medición de RiesgoRESUMEN
AIMS: Wild-type transthyretin amyloid cardiomyopathy (ATTR-CM) is an increasingly recognized condition. It remains challenging to estimate the extent of disease and the prognosis for most patients. Myocardial work is a sensitive echocardiographic approach that improves the characterization of myocardial damage. We investigate the parameters of myocardial deformation and work in ATTR-CM patients and their changes over time. METHODS AND RESULTS: We analysed clinical, electrocardiographic, biological, and echocardiographic characteristics in 113 patients [median age 82 (77-85), 90.4% male] diagnosed with wild-type ATTR-CM based on international consensus at a single centre. We compared the data at baseline and 18-month follow-up. Thirty-four patients died and 12 were hospitalized for heart failure at a median follow-up of 935 days (interquartile range 691-1159 days). Left ventricular end-diastolic diameter, left atrial strain during reservoir phase (LASRES), left ventricular longitudinal strain, global work index (GWI), global constructive work significantly decreased from baseline to 18 months, while left ventricular wall thickness increased. Left ventricular ejection fraction, right ventricular free wall strain (FWS), global wasted work (GWW), and global work efficiency did not alter significantly. Strain parameters were identified as prognostic on baseline evaluation using a multivariate analysis: GWI, GWW, FWS, and LASRES. They were significantly associated with the risk of death and hospitalization for heart failure. CONCLUSION: Multi-chamber strain assessment may improve the surveillance of patients with ATTR-CM, and myocardial work parameters may improve clinical risk stratification in this population.
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Amiloidosis , Cardiomiopatías , Insuficiencia Cardíaca , Humanos , Masculino , Anciano de 80 o más Años , Femenino , Volumen Sistólico , Función Ventricular Izquierda , Pronóstico , PrealbúminaRESUMEN
BACKGROUND: Left ventricular end-systolic diameter (LVESD) and ejection fraction (LVEF) are the parameters to look for when discussing repair in asymptomatic patients with a primary mitral regurgitation (PMR). Loading conditions are altering LV-function quantification. LV-myocardial work (LVMW) is a method based on pressure-strain loops. HYPOTHESIS: We sought to evaluate the additive value of the LVMW for predicting clinical events in patients with PMR. METHODS: 103 patients (66% men, median age 57 years) with asymptomatic severe PMR were explored at rest and during an exercise stress echocardiography. LV myocardial global work index (GWI), constructive work (GCW), wasted work (GWW), and work efficiency (GWE) were measured with speckle-tracking echocardiography at rest and low workload. The indication for surgery was based on the heart teams' decision. The median follow-up was 670 days. RESULTS: Clinical events occurred for 50 patients (48.5%) with a median of event-free survival distribution of 289 days. Systolic pulmonary artery pressure (sPAP) at rest was 32.61 ± 8.56 mmHg and did not predict the risk of event like LVEF and LVESD. Changes in, GLS (hazard ratio [HR] 0.55; 95% confidence interval (Cl): 0.36-0.83; p = .005), GWI (HR 1.01; 95% Cl: 1.00-1.02; p = .002) and GCW (HR 1.85; 95% Cl: 1.28-2.68; p = .001) in addition to Left Atrial Volume Index (HR 1.73; 95% CI: 1.28 - 2.33; p < 0,001) were independent predictors of events. CONCLUSION: Changes in myocardial work indices related to low-dose exercise are relevant to best predict PMR patient prognosis It might help to better select patient's candidate for "early-surgery."
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Insuficiencia de la Válvula Mitral , Masculino , Humanos , Persona de Mediana Edad , Femenino , Insuficiencia de la Válvula Mitral/diagnóstico por imagen , Insuficiencia de la Válvula Mitral/cirugía , Función Ventricular Izquierda , Volumen Sistólico , Sístole , PronósticoRESUMEN
Introduction: Various definitions of very severe (VS) tricuspid regurgitation (TR) have been proposed based on the effective regurgitant orifice area (EROA) or tricuspid coaptation gap (TCG). Because of the inherent limitations associated with the EROA, we hypothesized that the TCG would be more suitable for defining VSTR and predicting outcomes. Materials and methods: In this French multicentre retrospective study, we included 606 patients with ≥moderate-to-severe isolated functional TR (without structural valve disease or an overt cardiac cause) according to the recommendations of the European Association of Cardiovascular Imaging. Patients were further stratified into VSTR according to the EROA (≥60â mm2) and then according to the TCG (≥10â mm). The primary endpoint was all-cause mortality and the secondary endpoint was cardiovascular mortality. Results: The relationship between the EROA and TCG was poor (R2 = 0.22), especially when the size of the defect was large. Four-year survival was comparable between patients with an EROA <60â mm2 vs. ≥60â mm2 (68 ± 3% vs. 64 ± 5%, p = 0.89). A TCG ≥10â mm was associated with lower four-year survival than a TCG <10â mm (53 ± 7% vs. 69 ± 3%, p < 0.001). After adjustment for covariates, including comorbidity, symptoms, dose of diuretics, and right ventricular dilatation and dysfunction, a TCG ≥10â mm remained independently associated with higher all-cause mortality (adjusted HR[95% CI] = 1.47[1.13-2.21], p = 0.019) and cardiovascular mortality (adjusted HR[95% CI] = 2.12[1.33-3.25], p = 0.001), whereas an EROA ≥60â mm2 was not associated with all-cause or cardiovascular mortality (adjusted HR[95% CI]: 1.16[0.81-1.64], p = 0.416, and adjusted HR[95% CI]: 1.07[0.68-1.68], p = 0.784, respectively). Conclusion: The correlation between the TCG and EROA is weak and decreases with increasing defect size. A TCG ≥10â mm is associated with increased all-cause and cardiovascular mortality and should be used to define VSTR in isolated significant functional TR.
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BACKGROUND: The noninvasive assessment of myocardial work (MW) allows for the evaluation of left ventricular (LV) performance by considering the effect of LV afterload. This study aims to evaluate the acute and chronic impact of transcatheter edge-to-edge repair (TEER) on MW parameters and LV remodeling in patients with severe primary mitral regurgitation (PMR). METHODS: A total of 71 patients (age: 77 ± 9 years, females: 44%) with moderate-to-severe or severe PMR (effective regurgitant orifice: 0.57 ± 0.31 cm2; regurgitant volume: 80 ± 34 mL; LV end-systolic diameter: 42 ± 12 mm) underwent TEER after a global assessment by the heart team. MW indices were evaluated before the procedure, at hospital discharge, and at 1-year follow-up. LV remodeling was described as the percentage variation in LVEDV between baseline and 1-year follow-up. RESULTS: TEER caused an acute reduction in LVEF, global longitudinal strain (GLS), global MW index (GWI), work efficiency (GWE), and mechanical dispersion (MD) and a significant increase in wasted work (GWW). One year after the procedure, GLS, GWI, GWE, and MD recovered, whereas GWW remained significantly impaired. Baseline GWW (ß = -0.29, p = 0.03) was an independent predictor of LV reverse remodeling at 1-year follow-up. CONCLUSIONS: In patients with severe PMR undergoing TEER, the acute reduction in LV preload causes significant impairment to all the parameters of LV performance. Baseline GWW was the only independent predictor of LV reverse remodeling, suggesting that a lower myocardial energetic efficiency in the context of chronic preload increase might impact the left ventricular response to mitral regurgitation correction.
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AIMS: Functional tricuspid regurgitation (TR) is a turning point in cardiac diseases. Symptoms typically appear late. The optimal timing for proposing a valve repair remains a challenge. We sought to analyse the characteristics of right heart remodelling in patients with significant functional TR to identify the parameters that could be used in a simple prognostic model predicting clinical events. METHODS AND RESULTS: We designed a prospective observational French multicentre study including 160 patients with significant functional TR (effective regurgitant orifice area > 30 mm2 ) and left ventricular ejection fraction > 40%. Clinical, echocardiographic, and electrocardiogram data were collected at baseline and at the 1 and 2 year follow-up. The primary outcome was all-cause death or hospitalization for heart failure. At 2 years, 56 patients (35%) achieved the primary outcome. The subset with events showed more advanced right heart remodelling at baseline, but similar TR severity. Right atrial volume index (RAVI) and the tricuspid annular plane systolic excursion to systolic pulmonary arterial pressure (TAPSE/sPAP) ratio, reflecting right ventricular-pulmonary arterial coupling, were 73 mL/m2 and 0.40 vs. 64.7 mL/m2 and 0.50 in the event vs. event-free groups, respectively (both P < 0.05). None among all the clinical and imaging parameters tested had a significant group × time interaction. The multivariable analysis leads to a model including TAPSE/sPAP ratio > 0.4 (odds ratio = 0.41, 95% confidence limit 0.2 to 0.82) and RAVI > 60 mL/m2 (odds ratio = 2.13, 95% confidence limit 0.96 to 4.75), providing a clinically valid prognostic evaluation. CONCLUSIONS: RAVI and TAPSE/sPAP are relevant for predicting the risk for event at 2 year follow-up in patients with an isolated functional TR.
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Insuficiencia de la Válvula Tricúspide , Humanos , Insuficiencia de la Válvula Tricúspide/diagnóstico , Volumen Sistólico , Función Ventricular Izquierda , Pronóstico , EcocardiografíaRESUMEN
AIMS: Atrial arrhythmia (AA) is considered a turning point for prognosis in patients with hypertrophic cardiomyopathy (HCM). We sought to assess whether the occurrence of AA and stroke could be estimated by an echocardiographic evaluation. METHODS AND RESULTS: A total of 216 patients with HCM (52 ± 16 years old) were analysed. All patients underwent transthoracic echocardiography for the evaluation of left atrial volume (LAV), peak left atrial strain (PLAS), and peak atrial contraction strain. The patients were followed for 2.9 years for the occurrence of a composite endpoint including AA and/or stroke and peripheral embolism. Among the 216 patients, 78 (36%) met the composite endpoint. These patients were older (57.1 ± 14.4 vs. 50.3 ± 16.7 years; P = 0.0035), had a higher prevalence of arterial hypertension (62.3 vs. 42.3%; P = 0.005), and had higher NT-proBNP. The LAV (47 ± 20 vs. 37.2 ± 15.7 mL/m²; P = 0.0001) was significantly higher in patients who met the composite endpoint, whereas PLAS was significantly impaired (19.3 ± 9.54 vs. 26.6 ± 9.12%; P < 0.0001). After adjustment, PLAS was independently associated with events with an odds ratio of 0.42 (95% confidence interval 0.29-0.61; P < 0.0001). Stroke occurred in 67% of the patients without any clinical AA. The PLAS with a cut-off of under 15.5% provided event prediction with 91% specificity. Using a 15% cut-off, PLAS also demonstrated a predictive value for new-onset of AA. CONCLUSION: The decrease in PLAS was strongly associated with the risk of stroke, even in patients without any documented AA. Its value for guiding the management of patients with HCM requires further investigation.
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Fibrilación Atrial , Cardiomiopatía Hipertrófica , Accidente Cerebrovascular , Humanos , Adulto , Persona de Mediana Edad , Anciano , Fibrilación Atrial/epidemiología , Ecocardiografía , Atrios Cardíacos/diagnóstico por imagenRESUMEN
TREATMENT OF HEART FAILURE WITH PRESERVED EJECTION FRACTION Heart failure with preserved ejection fraction (HFPEF) is a syndrome that includes entities that respond to different therapeutic modalities. The prognosis is poor and the challenge is twofold: diagnosis and treatment. Progress has been made for the diagnosis and notably concerning the fundamental role of echocardiography. Treatment is entering for its part a new area with the emergence of comprehensive care improving the functional and vital prognosis.
TRAITEMENT DE L'INSUFFISANCE CARDIAQUE À FRACTION D'ÉJECTION PRÉSERVÉE L'insuffisance cardiaque à fraction d'éjection préservée (ICFEP) est un syndrome regroupant des entités qui répondent à des modalités thérapeutiques différentes. Le pronostic est sombre et l'enjeu est double : diagnostiquer et traiter. Des progrès ont été réalisés pour le diagnostic, attribuant notamment un rôle fondamental à l'échocardiographie. Le traitement entre quant à lui dans une nouvelle ère avec l'émergence d'une prise en charge globale améliorant le pronostic fonctionnel et vital.
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Insuficiencia Cardíaca , Humanos , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/terapia , Volumen Sistólico , Función Ventricular Izquierda , Ecocardiografía , PronósticoRESUMEN
BACKGROUND: Functional tricuspid regurgitation (FTR) is an independent risk factor for morbidity and mortality. New pathophysiological concepts but also new therapeutic options are justifying new knowledges for characterizing FTRs and their prognoses. AIM: To study echocardiographic criteria associated with prognosis in FTR-patients using a clustering method in two cohorts. METHODS AND RESULTS: Two hundred forty-one patients with at least severe (≥grade 3) TR were enrolled: 92 in the retrospective cohort (mean age 77.9 ± 13 years) and 149 in the prospective validation cohort. Hierarchical clustering analysis was conducted. Four parameters explained the clustering categorization according to a multinomial regression (right ventricular (RV) end-diastolic mid-cavity diameter, RV free-wall strain, right atrial (RA) volume index, RA strain; p = 0.0039). Three clusters were identified in the retrospective cohort: Cluster 1 had better right ventricular, left ventricular, and right atrial function than Cluster 2 (reduced RV and RA strain despite similar sizes). Cluster 3 included patients with severely dilated heart chambers associated to RV and RA dysfunctions. When applying the model in the validation (external) cohort, the rate of the primary endpoint (hospitalization for heart failure and/or death from any cause) was lowest in Cluster 1 (30.8% versus 48% and 58.8% in Clusters 2 and 3, respectively; p < 0.05). CONCLUSION: In FTR patients, different profiles of RV and RA remodeling are associated with different outcomes. Therefore, the diagnostic work-up in this clinical setting should include RV and RA characteristics. Under noninterventional management, the phenotype corresponding to preserved RV size and preserved RA and RV functions appears to have a better prognosis.
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Insuficiencia de la Válvula Tricúspide , Análisis por Conglomerados , Ecocardiografía , Humanos , Fenotipo , Pronóstico , Estudios Retrospectivos , Insuficiencia de la Válvula Tricúspide/diagnósticoRESUMEN
AIMS: To compare the clinical significance of exercise echocardiography (ExE) and cardiopulmonary exercise testing (CPX) in patients with ≥moderate primary mitral regurgitation (MR) and discrepancy between symptoms and MR severity. METHODS AND RESULTS: Patients consulting for ≥moderate discordant primary MR prospectively underwent low (25 W) ExE, peak ExE, and CPX within 2 months in Lille and Rennes University Hospital. Patients with Class I recommendation for surgical MR correction were excluded. Changes in MR severity, systolic pulmonary artery pressure (SPAP), left ventricular ejection fraction (LVEF), and tricuspid annular plane systolic excursion were evaluated during ExE. Patients were followed for major events (ME): cardiovascular death, acute heart failure, or mitral valve surgery. Among 128 patients included, 22 presented mild-to-moderate, 61 moderate-to-severe, and 45 severe MR. Unlike MR variation, SPAP and LVEF were successfully assessed during ExE in most patients. Forty-one patients (32%) displayed reduced aerobic capacity (peak VO2 < 80% of predicted value) with cardiac limitation in 28 (68%) and muscular or respiratory limitation in the 13 others (32%). ME occurred in 61 patients (47.7%) during a mean follow-up of 27 ± 21 months. Twenty-five Watts SPAP [hazard ratio (HR) (95% confidence interval, CI) = 1.03 (1.01-1.06), P = 0.003] and reduced aerobic capacity [HR (95% CI) = 1.74 (1.03-2.95), P = 0.04] were independently predictive of ME, even after adjustment for MR severity. The cut-off of 55 mmHg for 25 W SPAP showed the best accuracy to predict ME (area under the curve = 0.60, P = 0.05). CONCLUSION: In patients with ≥moderate primary MR and discordant symptoms, 25 W exercise pulmonary hypertension, defined as an SPAP ≥55 mmHg, and poor aerobic capacity during CPX are independently associated with adverse events.
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Insuficiencia de la Válvula Mitral , Humanos , Insuficiencia de la Válvula Mitral/diagnóstico por imagen , Insuficiencia de la Válvula Mitral/cirugía , Prueba de Esfuerzo , Pronóstico , Volumen Sistólico , Función Ventricular Izquierda , EcocardiografíaRESUMEN
AIMS: Tricuspid regurgitation (TR) was long forgotten until recent studies alerting on its prognostic impact. Cardiac output (CO) is the main objective of heart mechanics. We sought to compare clinical and echocardiographic data of patients with TR from inclusion to 1-year follow-up according to initial CO. METHODS AND RESULTS: Patients with isolated secondary TR and left ventricular ejection fraction (LVEF) ≥40% were prospectively included. All patients had a clinical and echocardiographic evaluation at baseline and after 1 year. Echocardiographic measurements were centralized. The patients were partitioned according to their CO at baseline. The primary outcome was all-cause death. Ninety-five patients completed their follow-up. The majority of patients had normal CO (n = 64, 67.4%), whereas 16 (16.8%) patients had low-CO and 12 (12.6%) had high-CO. right ventricular function was worse in the low-CO group but with improvement at 1 year (30% increase in tricuspid annular plane systolic excursion). LVEF and global longitudinal strain were significantly worse in the low-CO group. Overall, 18 (19%) patients died during follow-up, of which 10 (55%) patients had abnormal CO. There was a U-shaped association between CO and mortality. Normal CO patients had significantly better survival (87.5% vs. 62.5% and 66.67%) in the low- and high-CO groups, respectively, even after adjustment (heart rate 2.23 for the low-CO group and 9.08 for high-CO group; P = 0.0174). CONCLUSION: Significant isolated secondary TR was associated with 19% of mortality. It is also associated with higher long-term mortality if CO is abnormal, suggesting a possible role for evaluating better and selecting patients for intervention.