Sex differences in transaortic flow rate and association with all-cause mortality in patients with severe aortic stenosis

Abstract Aims It is not known whether transaortic flow rate (FR) in aortic stenosis (AS) differs between men and women, and whether the commonly used cut-off of 200 mL/s is prognostic in females. We aimed to explore sex differences in the determinants of FR, and determine the best sex-specific cut-offs for prediction of all-cause mortality. Methods and results Between 2010 and 2017, a total of 1564 symptomatic patients (mean age 76 ± 13 years, 51% men) with severe AS were prospectively included. Mean follow-up was 35 ± 22 months. The prevalence of cardiovascular disease was significantly higher in men than women (63% vs. 42%, P < 0.001). Men had higher left ventricular mass and lower left ventricular ejection fraction compared to women (both P < 0.001). Men were more likely to undergo an aortic valve intervention (AVI) (54% vs. 45%, P = 0.001), while the death rates were similar (42.0% in men and 40.6% in women, P = 0.580). A total of 779 (49.8%) patients underwent an AVI in which 145 (18.6%) died. In a multivariate Cox regression analysis, each 10 mL/s decrease in FR was associated with a 7% increase in hazard ratio (HR) for all-cause mortality (HR 1.07; 95% CI 1.03–1.11, P < 0.001). The best cut-off value of FR for prediction of all-cause mortality was 179 mL/s in women and 209 mL/s in men. Conclusion Transaortic FR was lower in women than men. In the group undergoing AVI, lower FR was associated with increased risk of all-cause mortality, and the optimal cut-off for prediction of all-cause mortality was lower in women than men.

Download Full-text

P93 The usefulness of dual cardiac autonomic nervous modulation assessment for prediction of mortality in patients with relatively preserved left ventricular ejection fraction

European Heart Journal ◽

10.1093/ehjci/ehz872.041 ◽

2020 ◽

Vol 41 (Supplement_1) ◽

Author(s):

T Kinoshita ◽

H Yuzawa ◽

R Wada ◽

S Yao ◽

K Yano ◽

...

Keyword(s):

Regression Analysis ◽

Heart Disease ◽

Primary Endpoint ◽

Cox Regression ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Ventricular Ejection Fraction ◽

Cox Regression Analysis ◽

Autonomic Nervous ◽

All Cause Mortality

Abstract Background Recent guidelines have stated that reduced left ventricular ejection fraction (LVEF) is the gold standard marker for identifying patients at risk for cardiac mortality. Although reduced LVEF identifies patients at an increased risk of cardiac arrest, sudden cardiac deaths (SCDs) occur considerably more often in patients with relatively preserved LVEF. Current guidelines on SCDs risk stratification do not adequately cover this general population pool. Heart rate variability (HRV) and heart rate turbulence (HRT) are non-invasive electrocardiography (ECG)-based techniques capable of providing relevant information on the cardiac autonomic nervous modulation. Although a large body of evidence about autonomic nervous modulation markers has been reported, the usefulness of HRV and HRT parameters for risk stratification in such patients with relatively preserved LVEF has not yet been elucidated. Purpose This study aimed to evaluate HRV and HRT parameters for predicting cardiac mortality in patients with structural heart disease (SHD), including ischemic heart disease, dilated cardiomyopathy and valvular heart disease, who have mid-range left ventricular dysfunction (LVD). Methods We prospectively enrolled 229 patients (187 men, age 63 ± 13 years) with SHD who have mid-range LVD (LVEF > 40%). HRV and HRT parameters based on 24-hour ambulatory ECG recordings (Fukuda Denshi Co., Ltd., Tokyo, Japan) were evaluated as follows; SDNN, triangular index, high and low frequency HRV, turbulence onset and slope. The primary endpoint was all-cause mortality. Univariate and multivariate Cox regression analysis were used to assess the association between these cardiac autonomic nervous modulation and mortality. Results During a mean follow-up of 21 ± 11 months, all-cause mortality was seen in 11 (4.8%) patients. Univariate Cox regression analysis showed that reduced SDNN (<50ms), reduced triangular index (<20ms) and HRT category 2 were significantly associated with the primary endpoint (P < 0.05). When HRT category 2 combined with reduced SDNN, Multivariate Cox regression analysis revealed that this combination more strongly associates with the primary endpoint (hazard ratio =7.91, 95%CI, 1.82-34.2; P = 0.006). Conclusion Dual cardiac autonomic nervous modulation assessment which combined HRT and HRV could be a superior technique to predict mortality in patients with relatively preserved LVEF.

Download Full-text

566 Myocardial left ventricular mechanical uniformity and adverse cardiac events following myocardial infarction

European Heart Journal - Cardiovascular Imaging ◽

10.1093/ehjci/jez319.296 ◽

2020 ◽

Vol 21 (Supplement_1) ◽

Author(s):

T Stiermaier ◽

S J Backhaus ◽

T Lange ◽

A Koschalka ◽

J L Navarra ◽

...

Keyword(s):

Myocardial Infarction ◽

Cox Regression ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Cardiac Events ◽

Prognostic Information ◽

Ventricular Ejection Fraction ◽

Cox Regression Analysis ◽

Multicenter Observational Study ◽

Adverse Cardiac Events

Abstract Background Despite limitations as a standalone parameter, left ventricular ejection fraction (LVEF) is the preferred measure of myocardial function and marker for post-infarction risk stratification. LV myocardial uniformity may provide superior prognostic information after acute myocardial infarction (AMI), which was subject of this study. Methods and Results: Consecutive patients with AMI (n = 1082; median age 63 years; 75% male) undergoing cardiac magnetic resonance (CMR) in median 3 days after infarction were included in this multicenter, observational study. Circumferential and radial uniformity ratio estimates (CURE and RURE) were derived from CMR feature-tracking as markers of mechanical uniformity (values between 0 and 1 with 1 reflecting perfect uniformity). The clinical endpoint was the 12-month rate of major adverse cardiac events (MACE), consisting of all-cause death, re-infarction, and new congestive heart failure. Patients with MACE (n = 73) had significantly impaired CURE [0.76 (IQR 0.67-0.86) versus 0.84 (IQR 0.76-0.89); p < 0.001] and RURE [0.69 (IQR 0.60-0.79) versus 0.76 (IQR 0.67-0.83); p < 0.001] compared to patients without events. While uniformity estimates did not provide independent prognostic information in the overall cohort, CURE below the median of 0.84 emerged as an independent predictor of outcome in post-infarction patients with LVEF >35% (n = 959) even after adjustment for established prognostic markers (hazard ratio 1.99; 95% confidence interval 1.06-3.74; p = 0.033 in stepwise multivariable Cox regression analysis). In contrast, LVEF was not associated with adverse events in this subgroup of AMI patients. Conclusions CMR-derived estimates of mechanical uniformity are novel markers for risk assessment after AMI and CURE provides independent prognostic information in patients with preserved or only moderately reduced LVEF.

Download Full-text

P6209Relationship between skin autofluorescence levels and clinical outcomes in heart failure patients undergoing cardiac rehabilitation

European Heart Journal ◽

10.1093/eurheartj/ehz746.0814 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

M Kunimoto ◽

K Shimada ◽

M Yokoyama ◽

A Honzawa ◽

M Yamada ◽

...

Keyword(s):

Heart Failure ◽

Cardiac Rehabilitation ◽

Cox Regression ◽

Left Ventricular ◽

University Hospital ◽

Left Ventricular Ejection ◽

Skin Autofluorescence ◽

Ventricular Ejection Fraction ◽

All Cause Mortality

Abstract Background Advanced glycation end-products, indicated by skin autofluorescence (SAF) levels, could be prognostic predictors of all-cause and cardiovascular mortality in patients with diabetes mellitus (DM) and renal disease. However, the clinical usefulness of SAF levels in patients with heart failure (HF) who underwent cardiac rehabilitation (CR) remains unclear. Purpose The purpose of this study was to investigate the prognostic value of SAF levels in patients with HF who underwent CR. Methods This study enrolled 204 consecutive patients with HF who had undergone CR at our university hospital between November 2015 and October 2017. Clinical characteristics and anthropometric data were collected at the beginning of CR. SAF levels were noninvasively measured with an autofluorescence reader. The major adverse cardiovascular event (MACE) was a composite of all-cause mortality and unplanned hospitalization for HF. Follow-up data concerning primary endpoints were collected until November 2018. Results Patients' mean age was 68.1 years, and 61% were males. Patients were divided into two groups according to the median SAF levels (high and low SAF groups). Patients in the high SAF group were significantly older, had a higher prevalence of chronic kidney disease, and histories of coronary artery bypass surgery; however, there were no significant between-group differences in sex, prevalence of DM, left ventricular ejection fraction, and physical function. During a median follow-up period of 623 days, 25 patients experienced all-cause mortality and 34 were hospitalized for HF. Kaplan–Meier analysis showed that patients in the high SAF group had a higher incidence of MACE (log-rank P<0.05), whereas when patients were divided into two groups according to the median hemoglobin A1c level, no significant between-group difference was observed for the incidence of MACE (Figure). After adjusting for confounding factors, Cox regression multivariate analysis revealed that SAF levels were independently associated with the incidence of MACE (hazard ratio: 1.74, 95% confidence interval: 1.12–2.65, P<0.05). Figure 1 Conclusion SAF levels were significantly associated with the incidence of MACE in patients with HF and may be useful for risk stratification in patients with HF who undergo CR.

Download Full-text

Association of Malnutrition, Left Ventricular Ejection Fraction Category, and Mortality in Patients Undergoing Coronary Angiography: A Cohort With 45,826 Patients

Frontiers in Nutrition ◽

10.3389/fnut.2021.740746 ◽

2021 ◽

Vol 8 ◽

Author(s):

Ziling Mai ◽

Zhidong Huang ◽

Wenguang Lai ◽

Huanqiang Li ◽

Bo Wang ◽

...

Keyword(s):

Left Ventricular Ejection Fraction ◽

Coronary Angiography ◽

Regression Models ◽

Cox Regression ◽

Density Lipoprotein ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Ventricular Ejection Fraction ◽

Risk Of Mortality ◽

All Cause Mortality

Background: The regulatory effect of the left ventricular ejection fraction (LVEF) categories on the association of malnutrition and all-cause mortality in patients undergoing coronary angiography (CAG) have not been adequately addressed.Methods: Forty-five thousand eight hundred and twenty-six patients consecutively enrolled in the Cardiorenal ImprovemeNt (CIN) study (ClinicalTrials.gov NCT04407936) from January 2008 to July 2018 who underwent coronary angiography (CAG). The Controlling Nutritional Status (CONUT) score was applied to 45,826 CAG patients. The hazard ratios of mortality across combined LVEF and/or malnutrition categories were estimated by Cox regression models. Variables adjusted for in the Cox regression models included: age, gender, hypertension (HT), DM, PCI, coronary artery disease (CAD), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglyceride (TRIG), chronic kidney disease (CKD), statins, atrial fibrillation (AF), anemia, and stroke. Population attributable risk (PAR) was estimated for eight groups stratified by nutritional status and LVEF categories.Results: In our study, 42,181(92%) of patients were LVEF ≥ 40%, of whom, 41.55 and 9.34% were in mild and moderate or severe malnutrition status, respectively, while 46.53 and 22.28% in mild and moderate or severe malnutritional status among patients with LVEF < 40%. During a median follow-up time of 4.5 years (percentile 2.8–7.1), 5,350 (11.7%) patients died. After fully adjustment, there is no difference of mortality on malnutrition in LVEF < 40% group (mild, moderate and severe vs. normal, HR (95%CI): [1.00 (0.83–0.98)], [1.20 (0.95–1.51)], [1.41 (0.87–2.29)], respectively, p for trend =0.068), but malnutrition was related to markedly increased risk of mortality in LVEF ≥ 40% group (mild, moderate, and severe vs. normal, HR (95%CI): [1.21 (1.12–1.31)], [1.56 (1.40–1.74)], and [2.20(1.67–2.90)], respectively, p for trend < 0.001, and p for interaction < 0.001). Patients with LVEF ≥ 40% had a higher malnutrition-associated risk of mortality and a higher PAR than those with LVEF < 40%.Conclusions: Malnutrition is common in CAG patients and it has a greater effect on all-cause mortality and a higher PAR in patients with LVEF ≥ 40% than LVEF < 40%.

Download Full-text

Relationship between skin autofluorescence levels and clinical events in patients with heart failure undergoing cardiac rehabilitation

Cardiovascular Diabetology ◽

10.1186/s12933-021-01398-0 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Mitsuhiro Kunimoto ◽

Miho Yokoyama ◽

Kazunori Shimada ◽

Tomomi Matsubara ◽

Tatsuro Aikawa ◽

...

Keyword(s):

Heart Failure ◽

Cardiac Rehabilitation ◽

Cox Regression ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Skin Autofluorescence ◽

Ventricular Ejection Fraction ◽

Patients With Heart Failure ◽

All Cause Mortality

Abstract Background Advanced glycation end-products, indicated by skin autofluorescence (SAF) levels, could be prognostic predictors of all-cause and cardiovascular mortality in patients with diabetes mellitus (DM) and renal disease. However, the clinical usefulness of SAF levels in patients with heart failure (HF) who underwent cardiac rehabilitation (CR) remains unclear. This study aimed to investigate the associations between SAF and MACE risk in patients with HF who underwent CR. Methods This study enrolled 204 consecutive patients with HF who had undergone CR at our university hospital between November 2015 and October 2017. Clinical characteristics and anthropometric data were collected at the beginning of CR. SAF levels were noninvasively measured with an autofluorescence reader. Major adverse cardiovascular event (MACE) was a composite of all-cause mortality and unplanned hospitalization for HF. Follow-up data concerning primary endpoints were collected until November 2017. Results Patients’ mean age was 68.1 years, and 61% were male. Patients were divided into two groups according to the median SAF levels (High and Low SAF groups). Patients in the High SAF group were significantly older, had a higher prevalence of chronic kidney disease, and more frequently had history of coronary artery bypass surgery; however, there were no significant between-group differences in sex, prevalence of DM, left ventricular ejection fraction, and physical function. During a mean follow-up period of 590 days, 18 patients had all-cause mortality and 36 were hospitalized for HF. Kaplan–Meier analysis showed that patients in the high SAF group had a higher incidence of MACE (log-rank P < 0.05). After adjusting for confounding factors, Cox regression multivariate analysis revealed that SAF levels were independently associated with the incidence of MACE (odds ratio, 1.86; 95% confidence interval, 1.08–3.12; P = 0.03). Conclusion SAF levels were significantly associated with the incidence of MACE in patients with HF and may be useful for risk stratification in patients with HF who underwent CR.

Download Full-text

Prognosis and NT-proBNP in heart failure patients with preserved versus reduced ejection fraction

Heart ◽

10.1136/heartjnl-2018-314173 ◽

2019 ◽

pp. heartjnl-2018-314173 ◽

Cited By ~ 8

Author(s):

Khibar Salah ◽

Susan Stienen ◽

Yigal M Pinto ◽

Luc W Eurlings ◽

Marco Metra ◽

...

Keyword(s):

Heart Failure ◽

Ejection Fraction ◽

Cox Regression ◽

Prognostic Significance ◽

Left Ventricular ◽

Percentage Change ◽

Left Ventricular Ejection ◽

Ventricular Ejection Fraction ◽

Cox Regression Analysis ◽

Reduced Ejection Fraction

BackgroundWe assessed the prognostic significance of absolute and percentage change in N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels in patients hospitalised for acute decompensated heart failure with preservedejection fraction (HFpEF) versus heart failure with reduced ejection fraction (HFrEF).MethodsPatients with left ventricular ejection fraction ≥50% were categorised as HFpEF (n=283), while those with <40% as were categorised as HFrEF (n=776). Prognostic values of absolute and percentage change in NT-proBNP levels for 6 months all-cause mortality after discharge were assessed separately in patients with HFpEF and HFrEF by multivariable adjusted Cox regression analysis. Comorbidities were compared between heart failure groups.ResultsDischarge NT-proBNP levels predicted outcome similarly in HFpEF and HFrEF: for any 2.7-factor increase in NT-proBNP levels, the HR for mortality was 2.14 for HFpEF (95% CI 1.48 to 3.09) and 1.96 for HFrEF (95% CI 1.60 to 2.40). Mortality prediction was equally possible for NT-proBNP reduction of ≤30% (HR 4.60, 95% CI 1.47 to 14.40 and HR 3.36, 95% CI 1.93 to 5.85 for HFpEF and HFrEF, respectively) and for >30%–60% (HR 3.28, 95% CI 1.07 to 10.12 and HR 1.79, 95% CI 0.99 to 3.26, respectively), compared with mortality in the reference groups of >60% reductions in NT-proBNP levels. Prognostically relevant comorbidities were more often present in patients with HFpEF than patients with HFrEF in low (≤3000 pg/mL) but not in high (>3000 pg/mL) NT-proBNP discharge categories.ConclusionsOur study highlights—after demonstrating that NT-proBNP levels confer the same relative risk information in HFpEF as in HFrEF—the possibility that comorbidities contribute relatively more to prognosis in patients with HFpEF with lower NT-proBNP levels than in patients with HFrEF.

Download Full-text

Significance of Preoperative Left Ventricular Ejection Fraction in 5-year Outcome After Isolated CABG

10.21203/rs.3.rs-727274/v1 ◽

2021 ◽

Author(s):

Aida Fallahzadeh ◽

Ali Sheikhy ◽

Ali Ajam ◽

Saeed Sadeghian ◽

Mina Pashang ◽

...

Keyword(s):

Ejection Fraction ◽

Total Population ◽

Cox Regression ◽

Artery Bypass ◽

Bypass Graft ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Ventricular Ejection Fraction ◽

Cox Regression Analysis ◽

Risk Of Mortality

Abstract Background: Pre-operative ejection fraction (EF) and comorbidities affect post-op outcomes. We aimed to compare the mortality and adverse events of patients with different baseline EF and also to evaluate the distribution of comorbidities in each EF group. Methods: A total of 20,937 patients who underwent isolated coronary artery bypass graft (CABG) surgery from January 2006 to December 2016 was included. Patients were divided into three groups based on their pre-operative left ventricular EF as follows; 1) Normal: EF ≥ 50%; 2) Mild to moderately reduced: 50% < EF ≤ 35%; and 3) Severely reduced: EF< 35%. The backward elimination method was considered for multivariate Cox-regression analysis to locate predictors of mortality and non-fatal cerebro-cardiovascular events (CCVEs). The median follow-up time was 5.61 [3.12- 8.0] years. Results: The mean age in the total population was 60.94 ± 9.51 years and 73.6% of the total population was male. Diabetes mellitus was the common risk factor of mortality and CCVE in all EF groups. Impaired renal function (GFR<60 ml/min) was associated with a higher risk of mortality after CABG regardless of EF level. The median 5-year mortality rate in patients with normal EF, mild-moderately reduced EF and severely reduced EF were 9.5%, 12.8%, and 22.7% respectively (P< 0.001). Although the trend of CCVEs was higher in severe left ventricle (LV) dysfunction, it was not statistically significant (p = 0.071). Conclusion: Patients with severely reduced EF are at higher risk of mortality after CABG compared to those with higher EF levels; however, the rate of CCVEs may not be necessarily higher after adjustment for multiple pre-operative comorbidities.

Download Full-text

Impact of aortic stenosis on layer-specific longitudinal strain: relationship with symptoms and outcome

European Heart Journal - Cardiovascular Imaging ◽

10.1093/ehjci/jez215 ◽

2019 ◽

Cited By ~ 4

Author(s):

Federica Ilardi ◽

Stella Marchetta ◽

Christophe Martinez ◽

Muriel Sprynger ◽

Arnaud Ancion ◽

...

Keyword(s):

Regression Analysis ◽

Aortic Stenosis ◽

Longitudinal Strain ◽

Left Atrial Volume ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Ventricular Ejection Fraction ◽

Cox Regression Analysis ◽

Myocardial Layers ◽

The Impact

Abstract Aims The present study sought to assess the impact of aortic stenosis (AS) on myocardial function as assessed by layer-specific longitudinal strain (LS) and its relationship with symptoms and outcome. Methods and results We compared 211 patients (56% males, mean age 73 ± 12 years) with severe AS and left ventricular ejection fraction (LVEF) ≥50% (114 symptomatic, 97 asymptomatic) with 50 controls matched for age and sex. LS was assessed from endocardium, mid-myocardium, and epicardium by 2D speckle-tracking echocardiography. Despite similar LVEF, multilayer strain values were significantly lower in symptomatic patients, compared to asymptomatic and controls [global LS: 17.9 ± 3.4 vs. 19.1 ± 3.1 vs. 20.7 ± 2.1%; endocardial LS: 20.1 ± 4.9 vs. 21.7 ± 4.2 vs. 23.4 ± 2.5%; epicardial LS: 15.8 ± 3.1 vs. 16.8 ± 2.8 vs. 18.3 ± 1.8%; P < 0.001 for all]. On multivariable logistic regression analysis, endocardial LS was independently associated to symptoms (P = 0.012), together with indexed left atrial volume (P = 0.006) and LV concentric remodelling (P = 0.044). During a mean follow-up of 22 months, 33 patients died of a cardiovascular event. On multivariable Cox-regression analysis, age (P = 0.029), brain natriuretic peptide values (P = 0.003), LV mass index (P = 0.0065), LV end-systolic volume (P = 0.012), and endocardial LS (P = 0.0057) emerged as independently associated with cardiovascular death. The best endocardial LS values associated with outcome was 20.6% (sensitivity 70%, specificity 52%, area under the curve = 0.626, P = 0.022). Endocardial LS (19.1 ± 3.3 vs. 20.7 ± 3.3, P = 0.02) but not epicardial LS (15.2 ± 2.8 vs. 15.9 ± 2.5, P = 0.104) also predicted the outcome in patients who were initially asymptomatic. Conclusion In patients with severe AS, LS impairment involves all myocardial layers and is more prominent in the advanced phases of the disease, when the symptoms occur. In this setting, the endocardial LS is independently associated with symptoms and patient outcome.

Download Full-text

Clinical and echocardiographic outcomes of patients with moderate to severe aortic stenosis and preserved, mid-range and reduced ejection fraction

European Heart Journal ◽

10.1093/ehjci/ehaa946.1982 ◽

2020 ◽

Vol 41 (Supplement_2) ◽

Author(s):

N Chew ◽

N Ngiam ◽

B.Y.Q Tan ◽

C.H Sia ◽

H.W Sim ◽

...

Keyword(s):

Heart Failure ◽

Aortic Valve ◽

Aortic Stenosis ◽

Ejection Fraction ◽

Severe Aortic Stenosis ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Aortic Valve Area ◽

Ventricular Ejection Fraction ◽

All Cause Mortality

Abstract Background Left ventricular ejection fraction (EF) plays an important role in risk stratifying and guiding therapy for patients with aortic stenosis (AS). This study aims to describe the clinical and echocardiographic outcomes of AS patients with preserved (ASpEF), mid-range (ASmrEF) and reduced (ASrEF) EF. Methods 713 consecutive patients with index echocardiographic diagnosis of moderate-severe AS (aortic valve area <1.5cm2) were allocated according to the EF into three groups: ASrEF (EF<40%), ASmrEF (EF 40–50%), and ASpEF (EF>50%). The study outcomes were defined as 5-year all-cause mortality, heart failure admissions, and aortic valve replacement (AVR). Results In comparison to patients with ASpEF, those with ASrEF were more frequently male, and systolic blood pressure was significantly lower on enrolment (p<0.001). Diabetes, ischemic heart disease and atrial fibrillation were more commonly seen in the ASrEF and ASmrEF groups, compared to ASpEF group. All-cause mortality rates were 30.5% for ASpEF, 50.8% for ASmrEF, 55.0% for ASrEF groups (p<0.001). Increased rates of heart failure admissions were seen in the ASmrEF and ASrEF groups (30.5% and 33.9%, respectively, vs. 14.9% in ASpEF group). Patients with ASrEF had significantly higher rates of AVR as compared to those in the ASmrEF and ASpEF groups (p=0.032). Conclusion Echocardiographic and clinical outcomes of ASmrEF patients resembled those of ASrEF more closely than the ASpEF patients. Stratifying AS patients according to the different EF groups may improve risk assessment and treatment strategies. Figure 1 Funding Acknowledgement Type of funding source: None

Download Full-text

The left atrium remodeling is associated with adverse outcomes in unoperated degenerative aortic stenosis

Clinical Practice ◽

10.17816/clinpract09212-19 ◽

2018 ◽

Vol 9 (2) ◽

pp. 12-19 ◽

Cited By ~ 1

Author(s):

V. I. Safaryan ◽

I. V. Zotova ◽

T. A. Tipteva ◽

O. S. Koroleva ◽

D. A. Zateyshchikov

Keyword(s):

Aortic Stenosis ◽

Left Atrium ◽

Roc Curves ◽

Left Ventricular ◽

Adverse Outcomes ◽

Left Ventricular Ejection ◽

Ventricular Ejection Fraction ◽

Kaplan Meier ◽

Increased Risk ◽

General Mortality

Degenerative aortic stenosis (DAS) may be accompanied by remodeling of the left atrium (LA). The aim of the study was to assess the effect of the morpho-functional parameters of the LA remodeling on the prognosis of patients with DAS. The prospective study included 383 patients (men – 33.9% of patients), aged 78.9 ± 0.40 years, with DAS (mild – 18.3%, moderate – 30.8%, severe – 50.9%). The patients did not undergo a surgical correction of the defect. The LA morpho-functional state was estimated by the LA size/volume and the ratio of the rate of the transmitral flow to the rate of the early diastolic movement of the fibrous mitral valve ring (E/e ratio). The average follow-up period was 603.9 ± 24.57 days. The general mortality was assessed. The information on the outcomes was collected by telephone contacts. Multivariate Сox-regression analyses showed that the LA remodeling was independently associated with the death risk: an increase in the LA size ≥45 mm (ОR 1.6, CI 1.06-2.37, р=0.026) and an increase in the Е/е ratio >15 (ОR 1.6, CI 1.08-2.39, р=0.021). Another risk factor was a decrease in the creatinine clearance <45 ml/min (ОR 1.7, CI 1.10-2.60, р=0.016), area of the aortic valve (ОR 0.4, CI 0.26-0.74, р=0.002) and a decrease in the left ventricular ejection fraction <40% (ОR 1.7, CI 1.02-2.71, р=0.042). The Kaplan-Meier survival analysis showed that the E/e ratio>15 and the LА size ≥45 mm were statistically significantly associated with an increased risk of the general mortality (р<0.0001, LogRank=14.5 and р<0.0001, LogRank=18.2, respectively). The areas under the ROC curves for the increased LA size ≥45 mm and the E/e ratio>15 were 0.62 and 0.61, respectively. Thus, the indices of the LA remodeling – the LA size ≥45 mm and the E/e ratio > 15 – are associated with a poor outcome in patients with DAS.

Download Full-text