Abnormal Left Ventricular Geometry Research Articles

Differential associations between abnormal cardiac left ventricular geometry types and cerebral white matter disease

ObjectivesReduced cardiac outflow due to left ventricular hypertrophy has been suggested as a potential risk factor for development of cerebral white matter disease. Our study aimed to examine the correlation between left ventricular geometry and white matter disease volume to establish a clearer understanding of their relationship, as it is currently not well-established. MethodsConsecutive patients from 2016 to 2021 who were ≥18 years and underwent echocardiography, cardiac MRI, and brain MRI within one year were included. Four categories of left ventricular geometry were defined based on left ventricular mass index and relative wall thickness on echocardiography. White matter disease volume was quantified using an automated algorithm applied to axial T2 FLAIR images and compared across left ventricular geometry categories. ResultsWe identified 112 patients of which 34.8 % had normal left ventricular geometry, 20.5 % had eccentric hypertrophy, 21.4 % had concentric remodeling, and 23.2 % had concentric hypertrophy. White matter disease volume was highest in patients with concentric hypertrophy and concentric remodeling, compared to eccentric hypertrophy and normal morphology with a trend-P value of 0.028. Patients with higher relative wall thickness had higher white matter disease volume (10.73 ± 10.29 cc vs 5.89 ± 6.46 cc, P = 0.003), compared to those with normal relative wall thickness. ConclusionOur results showed that abnormal left ventricular geometry is associated with higher white matter disease burden, particularly among those with abnormal relative wall thickness. Future studies are needed to explore causative relationships and potential therapeutic options that may mediate the adverse left ventricular remodeling and its effect in slowing white matter disease progression.

Routine first-trimester pre-eclampsia screening and maternal left ventricular geometry.

Pre-eclampsia (PE) is a pregnancy complication associated with premature cardiovascular disease morbidity and mortality (i.e. before 60 years of age or in the first year postpartum). PE is associated with adverse left ventricular (LV) remodeling in the peri- and postpartum periods, an independent risk factor for cardiovascular disease. This study aimed to compare LV geometry by LV mass (LVM) and LVM index (LVMI) between participants with a high vs low screening risk for preterm PE in the first trimester. This was a prospective cohort study of singleton pregnancies between 11 + 0 and 13 + 6 weeks' gestation that underwent screening for preterm PE as part of their routine first-trimester ultrasound assessment at a tertiary center in London, UK, from February 2019 until March 2020. Screening for preterm PE was performed using the Fetal Medicine Foundation algorithm. Participants with a screening risk of ≥ 1 in 50 for preterm PE were classified as high risk and those with a screening risk of ≤ 1 in 500 were classified as low risk. All participants underwent two-dimensional and M-mode transthoracic echocardiography. A total of 128 participants in the first trimester of pregnancy were included in the analysis, with 57 (44.5%) participants screened as low risk and 71 (55.5%) participants as high risk for PE. The risk groups did not vary in maternal age and gestational age at assessment. Maternal body surface area and body mass index were significantly higher in the high-risk group (all P < 0.05). The high-risk participants were significantly more likely to be Afro-Caribbean, nulliparous and have a family history of hypertensive disease in pregnancy as well as other cardiovascular disease (all P < 0.05). In addition, mean arterial blood pressure (P < 0.001), mean heart rate (P < 0.001), median LVM (130.06 (interquartile range, 113.62-150.50) g vs 97.44 (81.68-114.16)g; P < 0.001) and mean LVMI (72.87 ± 12.2 g/m2 vs 57.54 ± 12.72 g/m2 ; P < 0.001) were significantly higher in the high-risk group. Consequently, those in the high-risk group were more likely to have abnormal LV geometry (37.1% vs 7.0%; P < 0.001). Early echocardiographic assessment in participants at high risk of preterm PE may unmask clinically healthy individuals who are at increased risk for future cardiovascular disease. Adverse cardiac remodeling in the first trimester of pregnancy may be an indicator of decreased cardiovascular reserve and subsequent dysfunctional cardiovascular adaptation in pregnancy. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.

Association of major adverse cardiovascular events and all-cause mortality with left ventricular geometry in elderly

Abstract Objective To investigate the association of major adverse cardiovascular events and mortality with left ventricular geometry in elderly. Methods We prospectively recruited 3363 community-dwelling elderly (43.6% male, aged 71.1±5.9 years; 56.4% female, aged 71.1±6.1 years) from local community. Echocardiographic parameters were collected, left ventricular mass index (LVMi) above 115 g/m2 in male or 95 g/m2 in female, relative wall thickness (RWT) above 0.42 were considered as abnormal. Participants then were classified into 4 mutually exclusive groups as: normal geometry (normal LVMi and normal RWT), concentric remodeling (normal LVMi and increased RWT), eccentric hypertrophy (increased LVMi and normal RWT), concentric hypertrophy (increased LVMi and increased RWT). Cardiovascular death, non-fatal myocardial infarction including non-fatal ischemic stroke were recorded as incident MACE. Adjusted Cox regression models were used to evaluate the hazard ratios of MACE and all-cause mortality. Results Mean LVMi and RWT were 87.0 ± 28.4 g/m2 and 0.39 ± 0.08. During a median follow-up of 5.4 years, we identified 224 incident MACE cases and 233 deaths. All-cause mortality was significantly greater in participants with eccentric hypertrophy (adjusted hazard ratio [HR]: 1.649; 95% confidence interval [CI]: 1.143-2.379) compared with normal geometry in multivariate analyses after adjusting for baseline covariates. Incident MACE was significant both in concentric hypertrophy (HR:1.982; 95% CI: 1.239-3.170) and eccentric hypertrophy (HR:1.846; 95% CI: 1.266-2.692) but not in concentric remodeling (HR:1.101; 95% CI: 0.759-1.597). Baseline LVMi was a significant predictor of all-cause mortality (HR:1.047 per 10g/m2 increase in LVMi; 95% CI: 1.004-1.093). Similar results were observed with non-fatal myocardial infarction, non-fatal ischemic stroke and cardiovascular death. Conclusion Increased baseline LVMi and abnormal left ventricular geometry portend an increased risk for incident MACE and all-cause mortality in community dwelling elderly. From the pathophysiology point of view, per 10 g/m2 increase in LVMi add 5% risk for all-cause mortality.TablesFigures

Echocardiographic Assessment of the Left Ventricle in Young Prehypertensive Nigerians.

Prehypertension is associated with an increased risk of cardiovascular morbidity and mortality. This risk could partly be explained by the early compromise in left ventricular (LV) structure and function. This study investigated the LV geometry and function in young black prehypertensive subjects. This cross-sectional descriptive study was conducted at the Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria. Echocardiography-derived LV geometry and function were assessed using standardized methods. Prehypertensive subjects had higher mean systolic blood pressure (BP) (130.78 ± 3.57 mmHg vs 111.42 ± 3.54 mmHg, P<0.001), diastolic BP (79.32 ± 4.13 mmHg vs 66.39 ± 4.42 mmHg, P<0.001), body mass index (BMI) (26.24 ± 3.45 kg/m2 vs 22.20 ± 2.21 kg/m2, P<0.001), waist circumference (WC) (86.93 ± 8.73 cm vs 76.73 ± 6.66 cm, P<0.001), fasting blood glucose (FBG) (93.84 ± 7.28 mg/dl vs 90.08 ± 6.26 mg/dl, P<0.001), and dyslipidemia (21.5% vs 6%. P<0.001) compared to normotensive subjects. LV mass index (LVMI) was greater in prehypertensive subjects compared to normotensive subjects {male (106.84 ± 12.34 g/m2 vs 76.07 ± 10.25 g/m2, P<0.001); female (92.06 ± 8.80 g/m2 vs 66.53 ± 7.21 g/m2, P<0.001)}, with abnormal LV geometry recorded in 17.5%. Linear regression analysis showed that waist circumference, systolic BP, serum creatinine level, and urea level were determinants of LVMI. The prevalence of LV diastolic dysfunction was higher in prehypertensive subjects than in normotensive subjects (14.5% vs. 0.5%, P<0.001), with systolic BP {odds ratio (OR) 0.928, confidence interval (CI) 0.834 - 0.969; P=0.016)} and diastolic BP (OR 0.832, CI 0.722 - 0.958; P=0.011) being independent predictors. This study showed that prehypertension in young Black subjects was associated with altered LV geometry and impaired diastolic function, and these changes demonstrated linear progression with increasing systolic BP.

LEFT VENTRICULAR GEOMETRY AMONG CHRONIC KIDNEY DISEASE PATIENTS: THE ROLE OF ANEMIA

BACKGROUND: Anaemia and abnormal left ventricular (LV) geometric pattern are common findings in Chronic Kidney disease (CKD) patients.&#x0D; OBJECTIVES: To assess LV geometric pattern and its relationship with anaemia among CKD patients.&#x0D; METHODS: A cross sectional study of 163 subjects (102 and 61 CKD subjects with and without anaemia respectively). Echocardiography determined the LV geometric pattern while packed cell volume (PCV) levels determined anaemia.&#x0D; RESULTS: The mean age of subjects with and without anaemia was 54.04 ± 14.47 and 54.92 ± 15.67 years respectively (p = 0.717) while the prevalence of LVH among the two groups was 68.8% and 57.9% respectively (p = 0.174). The most frequent LV geometry in both groups was concentric LVH (53.8% and 43.9% respectively). Prevalence of LV systolic dysfunction was 45%, higher among anaemic subjects (58(61.7%) vs 10(17.5%)) p &lt; 0.001. There was a strong negative correlation between PCV and left ventricular mass index (r = -0.345, p = 0.001) among anaemic subjects, but weak positive correlation among patients without anaemia (r = 0.001, p = 0.993).&#x0D; CONCLUSION: Anaemic CKD patients had a high prevalence of abnormal LV geometry with significant contribution from anaemia. Early management of anaemia may thus improve cardiovascular outcomes.

LEGACY OF ARTERIAL HYPERTENSION OF WOMEN WITH A PAST HISTORY OF PREECLAMPSIA

Objective: Preeclampsia increases the longterm risk of cardiovascular disease. Some of the women affected by this condition remain hypertensive after delivery. Hypertensive phenotypes can be detected with ambulatory BP monitoring (ABPM). This study aimed to determine the prevalence of hypertension using ABPM and office measurements. Design and method: We conducted a cross- sectional study which included women who delivered between January 2015 and June 2021 and were diagnosed and followed up for preeclampsia in three major obstetrical and gynaecologic units in Yaounde. We excluded from the study all women who had a history of chronic hypertension or a known Cardiopathy. Sociodemographic data and past history were recorded, a physical exam,ecg, an ultrasound and ABPM was performed to all participants. Results: 101 participants were included. The mean age was 30.56 years. 40.6% of women had hypertension (sustained hypertension, with sometime masked hypertension) with ABPM. Sustained hypertension was most common (26.7%), followed by masked hypertension (11.9%) and white-coat hypertension (2%). With office BP measurement, only 28.7% of women would have been diagnosed hypertensive. 29.8% of women had a disadvantageous dipping pattern. Among those that develop chronic hypertension, 18.8% had LVH at electrocardiography, 7.9% had both LVH and an abnormal left ventricular geometry on ultrasound while in normotensive women 1.9% had LVH at Ecg with 1% having both LVH and abnormal geometry at ultrasound. 20.8% of these women were obese during the follow up compared to 11.9% in the normotensive group. We had 26 patients (25,74%) with severe office hypertension and 32,3% were obeses. The fundus was normal in the majority of cases and we had no signs of neurological deficits or impaired cognition. Renal function was always normal or subnormal. Finally, we had two cases of heart failure. Conclusions: Many women affected by preeclampsia remain hypertensive after delivery. Masked hypertension and white-coat hypertension are risk factors for future cardiovascular disease and can only be diagnosed with ABPM. It is important to provide adequate follow-up for these women in order to intervene on the factors leading to this outcome.

ASSOCIATION OF MAJOR ADVERSE CARDIOVASCULAR EVENTS AND ALL-CAUSE MORTALITY WITH LEFT VENTRICULAR GEOMETRY IN ELDERLY: THE NORTHERN SHANGHAI STUDY

Objective: To investigate the association of major adverse cardiovascular events and mortality with left ventricular geometry in elderly. Design and method: We prospectively recruited 3363 community-dwelling elderly (43.6% male, aged 71.1 ± 5.9 years; 56.4% female, aged 71.1 ± 6.1 years) from local community. Echocardiographic parameters were collected, left ventricular mass index (LVMi) above 115 g/m2 in male or 95 g/m2 in female, relative wall thickness (RWT) above 0.42 were considered as abnormal. Participants then were classified into 4 mutually exclusive groups as: normal geometry (normal LVMi and normal RWT), concentric remodeling (normal LVMi and increased RWT), eccentric hypertrophy (increased LVMi and normal RWT), concentric hypertrophy (increased LVMi and increased RWT). Cardiovascular death, non-fatal myocardial infarction including non-fatal ischemic stroke were recorded as incident MACE. Adjusted Cox regression models were used to evaluate the hazard ratios of MACE and all-cause mortality. Results: Mean LVMi and RWT were 87.0 ± 28.4 g/m2 and 0.39 ± 0.08. During a median follow-up of 5.4 years, we identified 224 incident MACE cases and 233 deaths. All-cause mortality was significantly greater in participants with eccentric hypertrophy (adjusted hazard ratio [HR]: 1.649; 95% confidence interval [CI]: 1.143-2.379) compared with normal geometry in multivariate analyses after adjusting for baseline covariates. Incident MACE was significant both in concentric hypertrophy (HR: 1.982; 95% CI: 1.239-3.170) and eccentric hypertrophy (HR: 1.846; 95% CI: 1.266-2.692) but not in concentric remodeling (HR:1.101; 95% CI: 0.759-1.597). Baseline LVMi was a significant predictor of all-cause mortality (HR: 1.047 per 10g/m2 increase in LVMi; 95% CI: 1.004-1.093). Similar results were observed with non-fatal myocardial infarction, non-fatal ischemic stroke and cardiovascular death. Conclusions: Increased baseline LVMi and abnormal left ventricular geometry portend an increased risk for incident MACE and all-cause mortality in community dwelling elderly. From the pathophysiology point of view, per 10 g/m2 increase in LVMi add 5% risk for all-cause mortality.

Heart failure with preserved ejection fraction is the most frequent but commonly overlooked phenotype in patients on chronic hemodialysis.

Heart failure (HF) is a serious complication of end-stage kidney disease (ESKD). However, most data come from retrospective studies that included patients on chronic hemodialysis at the time of its initiation. These patients are frequently overhydrated, which significantly influences the echocardiogram findings. The primary aim of this study was to analyze the prevalence of heart failure and its phenotypes. The secondary aims were (1) to describe the potential of N-terminal pro-brain natriuretic peptide (NTproBNP) for HF diagnosis in ESKD patients on hemodialysis, (2) to analyze the frequency of abnormal left ventricular geometry, and (3) to describe the differences between various HF phenotypes in this population. We included all patients on chronic hemodialysis for at least 3 months from five hemodialysis units who were willing to participate, had no living kidney transplant donor, and had a life expectancy longer than 6 months at the time of inclusion. Detailed echocardiography together with hemodynamic calculations, dialysis arteriovenous fistula flow volume calculation, and basic lab analysis were performed in conditions of clinical stability. Excess of severe overhydration was excluded by clinical examination and by employing bioimpedance. A total of 214 patients aged 66.4 ± 14.6 years were included. HF was diagnosed in 57% of them. Among patients with HF, HF with preserved ejection fraction (HFpEF) was, by far, the most common phenotype and occurred in 35%, while HF with reduced ejection fraction (HFrEF) occurred only in 7%, HF with mildly reduced ejection fraction (HFmrEF) in 7%, and high-output HF in 9%. Patients with HFpEF differed from patients with no HF significantly in the following: they were older (62 ± 14 vs. 70 ± 14, p = 0.002) and had a higher left ventricular mass index [96(36) vs. 108(45), p = 0.015], higher left atrial index [33(12) vs. 44(16), p < 0.0001], and higher estimated central venous pressure [5(4) vs. 6(8), p = 0.004] and pulmonary artery systolic pressure [31(9) vs. 40(23), p = 0.006] but slightly lower tricuspid annular plane systolic excursion (TAPSE): 22 ± 5 vs. 24 ± 5, p = 0.04. NTproBNP had low sensitivity and specificity for diagnosing HF or HFpEF: with the use of the cutoff value of 8,296 ng/L, the sensitivity of HF diagnosis was only 52% while the specificity was 79%. However, NTproBNP levels were significantly related to echocardiographic variables, most significantly to the indexed left atrial volume (R = 0.56, p < 10-5) and to the estimated systolic pulmonary arterial pressure (R = 0.50, p < 10-5). HFpEF was by far the most common heart failure phenotype in patients on chronic hemodialysis and was followed by high-output HF. Patients suffering from HFpEF were older and had not only typical echocardiographic changes but also higher hydration that mirrored increased filling pressures of both ventricles than in those of patients without HF.

Cardiovascular organ damage in relation to hypertension status in patients with ankylosing spondylitis

PurposeHypertension is a major cardiovascular (CV) risk factor in ankylosing spondylitis (AS) patients. Less is known about the prevalence of CV organ damage in relation to hypertension status in AS patients.Materials and MethodsCV organ damage was assessed by echocardiography, carotid ultrasound and pulse wave velocity (PWV) by applanation tonometry in 126 AS patients (mean age 49 ± 12 years, 39% women) and 71 normotensive controls (mean age 47 ± 11 years, 52% women). CV organ damage was defined as presence of abnormal left ventricular (LV) geometry, LV diastolic dysfunction, left atrial (LA) dilatation, carotid plaque or high pulse wave velocity (PWV).ResultsThirty-four percent of AS patients had hypertension. AS patients with hypertension were older and had higher C-reactive protein (CRP) levels compared to AS patients without hypertension and controls (p < 0.05). The prevalence of CV organ damage was 84% in AS patients with hypertension, 29% in AS patients without hypertension and 30% in controls (p < 0.001). In multivariable logistic regression analyses, having hypertension was associated with a fourfold increased risk of CV organ damage independent of age, presence of AS, gender, body mass index, CRP, and cholesterol (odds ratio (OR) 4.57, 95% confidence interval (CI) 1.53 to 13.61, p = 0.006). In AS patients, presence of hypertension was the only covariable significantly associated with presence of CV organ damage (OR 4.40, 95% CI 1.40 to 13.84, p = 0.011).ConclusionsCV organ damage in AS was strongly associated with hypertension, pointing to the importance of guideline-based hypertension management in AS patients.

Elevated bile acids are associated with left ventricular structural changes in biliary atresia.

In children with biliary atresia (BA), pathologic structural changes within the heart, which define cirrhotic cardiomyopathy, are associated with adverse perioperative outcomes. Despite their clinical relevance, little is known about the pathogenesis and triggers of pathologic remodeling. Bile acid excess causes cardiomyopathy in experimental cirrhosis, but its role in BA is poorly understood. Echocardiographic parameters of left ventricular (LV) geometry [LV mass (LVM), LVM indexed to height, left atrial volume indexed to BSA (LAVI), and LV internal diameter (LVID)] were correlated with circulating serum bile acid concentrations in 40 children (52% female) with BA listed for transplantation. A receiver-operating characteristic curve was generated to determine optimal threshold values of bile acids to detect pathologic changes in LV geometry using Youden index. Paraffin-embedded human heart tissue was separately analyzed by immunohistochemistry for the presence of bile acid-sensing Takeda G-protein-coupled membrane receptor type 5. In the cohort, 52% (21/40) of children had abnormal LV geometry; the optimal bile acid concentration to detect this abnormality with 70% sensitivity and 64% specificity was 152µmol/L (C-statistics=0.68). Children with bile acid concentrations >152µmol/L had ∼8-fold increased odds of detecting abnormalities in LVM, LVM index, left atrial volume index, and LV internal diameter. Serum bile acids positively correlated with LVM, LVM index, and LV internal diameter. Separately, Takeda G-protein-coupled membrane receptor type 5 protein was detected in myocardial vasculature and cardiomyocytes on immunohistochemistry. This association highlights the unique role of bile acids as one of the targetable potential triggers for myocardial structural changes in BA.

Abnormal Left Ventricular Geometry is Associated with Cerebral White Matter Disease (S36.005)

<h3>Objective:</h3> To evaluate the association between left ventricular (LV) geometry and cerebral white matter disease (WMD). <h3>Background:</h3> WMD is a type of cerebral small vessel disease shown to increase risk of stroke and dementia. Reduced cardiac outflow due to left ventricular hypertrophy has been suggested as a potential risk factor for the development of WMD. The relationship between the LV geometry and the WMD volume has not been well established. <h3>Design/Methods:</h3> Consecutive patients from 2016–2022 who are ≥18 years who underwent an echocardiogram, Cardiac MRI, NT-proBNP test, and a brain MRI within one year were included. Four categories of LV geometry were defined: normal, eccentric hypertrophy, concentric remodeling, and concentric hypertrophy. WMD volume was quantified using an automated algorithm applied to axial T2 FLAIR images. Multivariable regression analyses were performed to evaluate the relationship between LV geometry and WMD volume. <h3>Results:</h3> A total of 112 patients were identified. Mean age was 63 ± 16 years, 48.2% were females, 68.8% had hypertension and 67.9% had coronary heart disease. WMD volume was highest in patients with concentric remodeling (11.34 ± 10.12cc) and concentric hypertrophy (10.08 ± 10.66cc) compared to eccentric hypertrophy (6.39 ± 6.06cc) and normal morphology (5.66 ± 6.74cc) with a trend-P value of 0.028. Patients with relative wall thickness (RWT) &gt;42% had higher WMD volume (10.73 ± 10.29cc vs 5.89 ± 6.46cc, P=0.003), compared to those with RWT≤42%. Patients with fibrosis on cardiac MRI appeared to have higher WMD volume but did not achieve statistical significance (10.30 ± 10.59cc vs 7.41 ± 8.02cc, P=0.144). <h3>Conclusions:</h3> Our results showed that abnormal LV geometry is associated with higher WMD burden. Future studies are needed to explore whether the control of hypertension with specific class of antihypertensive medication may mediate the adverse left ventricular remodeling in slowing WMD progression. <b>Disclosure:</b> Mr. Salem has nothing to disclose. Mr. Mateti has nothing to disclose. Dr. Demirer has nothing to disclose. Dr. Anisetti has nothing to disclose. Mr. Youssef has nothing to disclose. Dr. Elkhair has nothing to disclose. An immediate family member of Demilade Adedinsewo has received personal compensation for serving as an employee of Apple Inc. The institution of Demilade Adedinsewo has received research support from NIH. The institution of Demilade Adedinsewo has received research support from Miami Heart Research Institute. The institution of Dr. Meschia has received research support from NINDS. The institution of Dr. Meschia has received research support from NINDS. Dr. Lin has nothing to disclose.

Visceral adiposity index and the risk of heart failure, late-life cardiac structure and function in ARIC Study.

It is well established that obesity is associated with the risk of heart failure (HF). However, the data about relationship between visceral fat and the risk of HF are limited. We aim to evaluate the association between visceral obesity assessed by visceral adiposity index (VAI) and incident HF and left ventricular (LV) structure and function in Atherosclerosis Risk in Communities (ARIC) Study. We included 12,161 participants (aged 54.1 ± 5.8years) free of history of HF and coronary heart disease at baseline (1987-1989) in ARIC Study. We used multivariable Cox hazard regression models to assess the association between the VAI and incident HF. We further explored the effects of the VAI on LV geometry and function among 4,817 participants with echocardiographic data using multivariable linear regression analysis and multinomial logistic regression. During a median follow-up of 22.5 years, a total of 1,904 (15.7%) participants developed HF. After adjustment for traditional HF risk factors, one unit increase in the baseline VAI was associated with an 8% higher risk of incident HF [hazard ratio (HR): 1.08, 95% confidence interval (CI):1.06-1.11]. Results were similar when participants were categorized by VAI tertiles. Compared with participants in the lowest tertile of VAI, those in the second tertile and third tertile had a greater risk of incident HF [HR (95%CI) :1.19 (1.05-1.34), 1.42 (1.26-1.61), respectively]. For the analyses of the HF subtypes, the higher VAI was only associated with the risk of HF with preserved ejection fraction, not with HF with reduced ejection fraction. In addition, the greater VAI was associated with worse LV diastolic function and abnormal LV geometry including concentric remodeling, concentric hypertrophy and eccentric Hypertrophy. This study shows that higher VAI was independently associated with the increased risk of incident HF and abnormal LV geometry and LV diastolic dysfunction.

Étude de la géométrie ventriculaire gauche chez des hypertendus Noirs Africains

AimTo determine the prevalence and determinants of different types of echocardiographic left ventricular remodeling in African black hypertensive patients. Patients and methodsA transversal descriptive study was conducted from January 1, 2015, to March 31, 2016, in the external explorations department of the Abidjan Heart Institute-Côte d'Ivoire. Transthoracic cardiac echo-graphs were performed in 524 (251 women) hypertensive subjects according to the American Society of Echocardiography convention. ResultsTwenty-nine percent of hypertensive patients had cardiac remodeling (in women and men, respectively, concentric remodeling 14.7 % and 15.7 %; concentric hypertrophy 6 % and 10.3 %; eccentric hypertrophy 7.6 % and 3.7 %). Only systolic and diastolic blood pressure levels were significantly correlated with left ventricular mass indexed to body surface area. ConclusionThis study showed a significant proportion of hypertensives with abnormal left ventricular geometry and confirmed the relationship between blood pressure level and left ventricular geometry change.

Serum uric acid is related to left ventricular geometry and function in patients with obstructive sleep apnea.

Serum uric acid (SUA) is an oxidative stress-related biomarker of cardiovascular risk. We sought to discover whether or notSUA was related to left ventricular geometry (LVG) and function among individuals with obstructive sleep apnea (OSA). Patients with OSAand healthy controls were assessed for clinical features, echocardiography, polysomnography, and blood biochemical data. Patients withOSA were divided into four groups: normal geometry (NG), concentric remodeling (CR), eccentric hypertrophy (EH), and concentric hypertrophy (CH). Correlations of SUA with left ventricular (LV) structure and function were examined through Pearson correlation analysis. The risk variables of LVG were investigated using a multivariate logistic regression model. Compared to controls, patientswith OSA had greater SUA levels. The eccentric hypertrophy (EH) and concentric hypertrophy (CH) groups showed substantially greater SUA levels than the normal geometry (NG) and concentric remodeling (CR) groups (p < 0.05). SUA correlated positively with left ventricular mass index (LVMI) and relative wall thickness (RWT) but negatively with the E/A ratio, according to the Pearson correlation analysis. SUA independently affected EH (OR = 1.021, 95%CI = 1.015-1.028, p < 0.001) and CH (OR = 1.034, 95%CI = 1.025-1.043, p < 0.001) in patients withOSAby the multivariate logistic regression model. Patientswith OSA had elevated levels ofSUA, which were seen to be closely linked with abnormal LVG and function. The findingssuggest that SUA may raise the risk of LV structural and functional impairment in patients with OSA.

Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes.

Limited data are available on athlete's heart for rugby athletes. This study aimed to investigate cardiac structure and its relationship with cardiorespiratory fitness in young Japanese rugby athletes. A prospective cross-sectional study using echocardiography and cardiopulmonary exercise testing (CPET) was conducted on 114 male collegiate rugby players. There was a higher prevalence of increased left ventricular (LV), atrial, and aortic dimensions in the young athletes than that in previously published reports, whereas the wall thickness was within the normal range. Anthropometry and CPET analyses indicated that the forwards and backs presented muscular and endurance phenotypes, respectively. Indexed LV and aortic dimensions were significantly larger in the backs than in the forwards, and the dimensions significantly correlated with oxygen uptake measured by CPET. On the four-tiered classification for LV hypertrophy, abnormal LV geometry was found in 16% of the athletes. Notably, the resting systolic blood pressure was significantly higher in athletes with concentric abnormal geometry than in the other geometry groups, regardless of their field positions. Japanese young athletes may exhibit unique phenotypes of cardiac remodeling in association with their fitness characteristics. The four-tiered LV geometry classification potentially offers information regarding the subclinical cardiovascular risks of young athletes.

Assessment of left ventricular geometry in normotensive type II diabetic patients.

Abnormalities of glucose metabolism are associated with abnormal left ventricular geometry (LV) independent of atherosclerosis. Abnormal LV geometry, a predictor of premature cardiovascular events, indicates presence of subclinical target organ damages. Screening for abnormal LV geometry in diseases of abnormal glucose metabolism is desirable as part of their management protocol. To assess the left ventricular geometry in normotensive type II diabetic patients. Cross-sectional, descriptive, hospital-based study. One hundred normotensive type II diabetic patients drawn from the Endocrinology and Family Medicine Clinics of a tertiary hospital were age- and gender-matched with 100 apparently healthy controls. Participants meeting the criteria and informed consent proceeded for clinical evaluation, biochemical assessment, electrocardiography, and echocardiography using the American Society of Echocardiography guideline. Data were analyzed using the Statistical Package for Social Sciences [SPSS] version 25.0 (Chicago Illinois, USA). Mean age of study and control groups was (55.56 ± 9.89 versus 55.47 ± 10.7) years (χ2 = 0.062, P = 0.951). The mean duration of diabetes illness was 6.57 ± 6.26 years. Prevalence of abnormal LV geometry was 51% (study) versus 18% (control) FT, P < 0.001). Concentric remodeling was the predominant geometry in 36% of study versus 11% of controls, followed by eccentric hypertrophy in 11% (study) versus 4% (control) and concentric hypertrophy in 4% (study) versus 3% (control). Geometry was normal in 49% of study against 82% in the controls (FT, P < 0.001). Significant association existed between LV geometry and duration of diabetes (χ2 = 10.793, P = 0.005). Abnormal LV geometry is highly prevalent in normotensive diabetic patients.

PS-C10-1: BLOOD PRESSURE PROFILE AND CARDIO-VASCULAR FEATURES OF WOMEN WITH A PAST HISTORY OF PREECLAMPSIA

Introduction: Preeclampsia increases the longterm risk of cardiovascular disease. Some of the women affected by this condition remain hypertensive after delivery. Hypertensive phenotypes such as masked hypertension, sustained hypertension, white coat hypertension and an adverse systolic night-today blood pressure (BP) ratio are often unnoticed and can only be detected with ambulatory BP monitoring (ABPM). This study aimed to determine the prevalence of hypertension using ABPM and office measurements. Methods: We conducted a cross- sectional study which included women who delivered between January 2015 and June 2021 and were diagnosed and followed up for preeclampsia in three major obstetrical and gynaecologic units in Yaounde. We excluded from the study all women who had a history of chronic hypertension or a known Cardiopathy. Sociodemographic data and past history were recorded, a physical exam,ecg, an ultrasound and ABPM was performed to all participants. Results: 101 participants were included. The mean age was 30.56 years. 40.6% of women had hypertension (sustained hypertension, with sometime masked hypertension) with ABPM. Sustained hypertension was most common (26.7%), followed by masked hypertension (11.9%) and white-coat hypertension (2%). With office BP measurement, only 28.7% of women would have been diagnosed hypertensive. 29.8% of women had a disadvantageous dipping pattern. Among those that develop chronic hypertension, 18.8% had LVH at electrocardiography, 7.9% had both LVH and an abnormal left ventricular geometry on ultrasound while in normotensive women 1.9% had LVH at Ecg with 1% having both LVH and abnormal geometry at ultrasound. 20.8% of these women were obese during the follow up compared to 11.9% in the normotensive group. We had 26 patients (25,74%) with severe office hypertension and 32,3% were obeses. The fundus was normal in the majority of cases and we had no signs of neurological deficits or impaired cognition. Renal function was always normal or subnormal. Finally, we had two cases of heart failure. Conclusion: Many women affected by preeclampsia remain hypertensive after delivery. Masked hypertension and white-coat hypertension are risk factors for future cardiovascular disease and can only be diagnosed with ABPM. It is important to provide adequate follow-up for these women in order to intervene on the factors leading to this outcome.

Detection of left ventricular hypertrophy on the ECG through machine learning with a focus on obesity

Abstract Background Cardiac remodeling, an important aspect of cardiovascular disease (CVD) progression, is emerging as a significant therapeutic target. The electrocardiogram (ECG) is of paramount importance in the initial evaluation of a patient. However, the ECG is not a sensitive method of detecting left ventricular hypertrophy (LVH), and as far as we know, it cannot detect changes in left ventricular geometry (LVG) at early stages, especially before LVH is present. Its sensitivity is particularly low for obese patients. Purpose To use a machine learning (ML) classifier to detect abnormal LVG from ECG parameters/markers, even before it becomes LVH, and to propose some indicative markers useful for practitioners. We also looked at the results of our model for obese patients to test the markers in this population. Methods We enrolled consecutive subjects, aged 30 years or older (mean age: 61.6±12 years old) with and without essential hypertension and no indications of CVD. All patients underwent a full echocardiographic evaluation and were classified into 2 groups; those with normal geometry (NG) vs. those with concentric remodeling (CR) or LVH defined as concentric hypertrophy (CH) and eccentric hypertrophy (EH). Abnormal LVG was identified as increased relative wall thickness (RWT) and/or left ventricular mass index (LVMi). We analyzed the EKG waveforms deduced to single beat averages for each lead using custom software and extracted 70 markers. We then trained a Random Forest machine learning model to classify subjects with abnormal LVG and calculated SHAP values to perform feature importance and interaction. Results After screening 1120 individuals, we enrolled 594 subjects, aged 30 years or older (mean age: 61.6±12 years old). The percentage of women was 56.5%, while 71.3% of all patients were hypertensive. Hypertension, age, body mass index divided by the Sokolow-Lyon voltage (BMI/S-L), QRS-T angle, and QTc duration were among the most important parameters (Figure, left panel) identified by the model as being predictive of abnormal LVG (AUC/ROC = 0.84, sensitivity = 0.94, specificity 0.61). Specifically for obese patients, whose prevalence in our population was 60.3%, our model performed well (sensitivity = 0.71, specificity = 0.92. When we tried our model without the the BMI/S-L parameter, the specificity dropped to 0.88. We also found that a cut-off point of 18 for the BMI/S-L marker predicted the patients who were more probable to have developed abnormal LVG. Conclusions This study is the first to demonstrate the promising potential of ML modeling for the efficient and cost-effective diagnostic screening of abnormal LVG and cardiac remodeling through ECG. We found specific clinical and ECG parameters that can predict early pathological changes of LVG in patients without established CVD and detect the population who will benefit from a detailed echocardiographic evaluation. Funding Acknowledgement Type of funding sources: None.

Atrial Fibrillation in Heart Failure with Preserved Left Ventricular Systolic Function: Distinct Elevated Risk for Cardiovascular Outcomes in Women Compared to Men.

Background: Heart failure with preserved ejection fraction (HFpEF) is prevalent in women and is associated with atrial fibrillation (AF). However, sex associations in AF-related HFpEF are not well explored. Aim: We studied differences between men and women with and without AF-related HFpEF symptoms on left ventricular (LV) geometry and diastolic dysfunction (DD) and their effect on cardiovascular events. Methods: Retrospectively, HFpEF patients with and without a history of AF referred for echocardiography were studied. Echocardiographic assessments were focused on LV geometry and diastolic functions. Patients were followed for the occurrence of cardiac events defined as death and cardiac hospitalization. Results: We studied 556 patients [age: 66.7 ± 17 years, 320 (58%) women, 91 (16%) AF]. Compared to HFpEF without AF (HFpEF-AF), HFpEF with AF patients (HFpEF+AF) were older (76 ± 13.8 vs. 64.9 ± 17.3 years, p &lt; 0.001), had more risk factors, comorbidities, left ventricular hypertrophy (32 vs. 13%, p &lt; 0.001), higher relative wall thickness (0.50 ± 0.14 vs. 0.44 ± 0.15, p &lt; 0.001), and DD (56 vs. 30%, all p &lt; 0.001). HFpEF+AF women had the worst clinical, LV geometric, and diastolic functional profiles and highest rates of cardiovascular outcomes compared to HFpEF+AF men and were the only group to predict outcomes (HR: 2.7, 95%CI: 1.4-5.1), while HFpEF-AF women were a low-risk group; HFpEF+AF and HFpEF-AF men had intermediate cardiovascular outcomes which were confirmed after propensity score matching. Conclusions: Among patients with HFpEF, women with AF had more abnormal LV geometry and diastolic function and had an increased risk of adverse cardiovascular outcomes independent of traditional risk factors, comorbidities, and baseline diastolic function.

Inflammatory cytokines and their correlations with different left ventricular geometries and functions in PHT patients.

To investigate relationships between hypersensitive C-reactive protein (hs-CRP), tumor necrosis factor -α (TNF-α), interleukin-17A (IL-17A), and interferon -γ (IFN-γ), with left ventricular geometry (LVG) and function in patients with primary hypertension (PHT). A total of 396 PHT patients were assigned into four groups: Normal Geometry (NG), Concentric Remodeling (CR), Eccentric Hypertrophy (EH), and Concentric Hypertrophy (CH). The correlation between hs-CRP, TNF-α, IL-17A, IFN-γ, and clinical, biochemical parameters were analyzed by Pearson correlation analysis and Logistic regression. Receiver Operating Characteristic (ROC) curve was used to analyze the clinical values of hs-CRP, TNF-α, IL-17A, and IFN-γ for abnormal LVG prediction. NG, CR, EH, and CH group all presented increasingly higher levels of Hs-CRP, TNF-α, IL-17A, and IFN-γ, and the increase was the most prominent in the CH group. Pearson correlation analysis showed that hs-CRP, IL-17A, and IFN-γ were all positively correlated with LASct. Hs-CRP, TNF-α, and IL-17A were all negatively correlated with GLS, LASr, and LAScd. However, IFN-γ was only negatively correlated with GLS and LAScd. Logistic regression analysis showed that hs-CRP and IL-17A were independently correlated with CR; hs-CRP, TNF-α, IFN-γ, and IL-17A were independently correlated with EH and CH. ROC curve analysis showed that the area under the curve (AUC) of hs-CRP was 0.816. When the optimal diagnostic threshold of hs-CRP was 3.04mg/L, the sensitivity and specificity of the abnormal LVG were 72.1% and 81.5%, respectively. In PHT patients, hs-CRP, TNF-α, IL-17A, and IFN-γ were correlated with abnormal LVG and left ventricular function, suggesting that inflammatory cytokines may be involved in the process of PHT-induced abnormal left ventricular structure and function. In addition, hs-CRP can be used as a health screening index for patients at high risk of abnormal LVG.