Assessment of left atrial function using speckle tracking echocardiography in ankylosing spondylitis: a case-control study

A meta-analysis of left ventricular dysfunction in ankylosing spondylitis

Ankylosing spondylitis (AS) is a chronic inflammatory arthritis affecting the spine, presenting a considerable morbidity risk. Although evidence consistently indicates an elevated risk of ischemic heart disease among AS patients, debates persist regarding the likelihood of these patients developing left ventricular dysfunction (LVD). Our investigation aimed to determine whether individuals with AS face a greater risk of LVD compared to the general population. To accomplish this, we identified studies exploring LVD in AS patients across five major databases and Google Scholar. Initially, 431 studies were identified, of which 30 met the inclusion criteria, collectively involving 2933 participants. Results show that AS patients had: (1) poorer Ejection Fraction (EF) [mean difference (MD): -0.92% (95% CI: -1.25 to -0.59)], (2) impaired Early (E) and Late (atrial-A) ventricular filling velocity (E/A) ratio [MD: -0.10 m/s (95% CI: -0.13 to -0.08)], (3) prolonged deceleration time (DT) [MD: 12.30 ms (95% CI: 9.23-15.36)] and, (4) a longer mean isovolumetric relaxation time (IVRT) [MD: 8.14 ms (95% CI: 6.58-9.70)] compared to controls. Though AS patients show increased risks of both systolic and diastolic LVD, we found no significant differences were observed in systolic blood pressure [MD: 0.32 mmHg (95% Confidence Interval (CI): -2.09 to 2.73)] or diastolic blood pressure [MD: 0.30 mmHg (95% CI: -0.40 to 1.01)] compared to the general population. This study reinforces AS patients' susceptibility to LVD without a notable difference in HTN risk.

Systolic and Diastolic Cardiac Functions in Juvenile Spondyloarthropathies

BACKGROUND/OBJECTIVE

Juvenile spondyloarthropathies (JSpAs) are a group of inflammatory diseases characterized by asymmetric peripheral arthritis (especially in lower extremities), axial skeleton involvement, and enthesitis. Although cardiovascular findings of inflammatory diseases such as juvenile systemic lupus erythematosus (SLE) and juvenile scleroderma (SD) are well documented, there are only a few studies assessing the cardiovascular consequences of JSpA in the literature.

METHODS

Forty patients with JSpA and 20 healthy controls were included into this cross-sectional study. Cardiac functions of the participants were evaluated by conventional echocardiography and pulse-wave (PW) tissue Doppler.

RESULTS

The patients with JSpA had higher mitral lateral S (p = 0.005) and E' wave (p < 0.001), tricuspid A' wave (p = 0.03), ejection fraction (p = 0.03) and shortening fraction (p = 0.01) than the control patients. In contrast, the patients with JSpA had lower left ventricle MPI (p = 0.01) and the ratio of tricuspid E'/A' waves (p = 0.05). Patients with enthesitis detected on magnetic resonance imaging had lower ejection fraction (p = 0.05), the ratio of E/A waves (p = 0.03) and had higher Mitral lateral A' wave (p = 0.01) than those without. There was a significant inverse correlation between the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and PW transmitral A velocity (r = -0.256, p = 0.03), the BASDAI score and tricuspid annular plane systolic excursion (r = -0.301, p = 0.04), the BASDAI score and the ratio of E/E' waves (r = -0.276, p = 0.02), and the Juvenile Spondyloarthritis Disease Activity Index and PW transmitral A velocity (r = -0.246, p = 0.04).

CONCLUSIONS

In this study, we report the possible early signs of RV diastolic dysfunction and possible association between magnetic resonance imaging-confirmed enthesitis and lower LV systolic functions. Early identification of cardiac dysfunctions can help with prevention of long-term cardiovascular complications.

Heart Involvement in a Moroccan Population with Spondyloarthritis: A Cross-sectional Study

Objectives

The aim of this study was to investigate the prevalence of cardiac manifestations and their predictive factors in Moroccan patients with spondyloarthritis (SpA).

Methods

We have conducted a cross-sectional study over four months at the Department of Rheumatology in Mohammed VI University Hospital of Oujda, Morocco. All SpA patients fulfilled the 2009 Assessment SpondyloArthritis international Society (ASAS) criteria. Every patient had a cardiac check up including clinical examination, 12-lead electrocardiogram (ECG) and transthoracic echocardiography (TTE). Multiple logistic regression was used to analyze the associated factors with cardiac manifestations.

Results

We included 64 men and 30 women with a mean age of 37.32 ± 12.65 years old. The mean disease duration was 10.60 ± 7.61 years. Patients had a mean Ankylosing Spondylitis Disease Activity Score (ASDAS) CRP of 2.25 ± 1.38, a mean Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) of 2.88 ± 2.26 and a mean Bath Ankylosing Spondylitis Functional Index (BASFI) of 33.52 ± 30.49. Traditional cardiovascular risk factors (CVRF) included dyslipidemia in 14.9%, hypertension in 9.6% and type 2 diabetes in 7.4% of the cases. Eight patients (8.5%) smoked and 3 patients (3.2%) used alcohol whereas 20 patients (21.3%) had a history of smoking and 5 patients (6.3%) a history of alcohol. Cardiac manifestations were found in 12 patients (13.3%): 3.3% had aortic regurgitation (AR), 1.1% had aortic dilatation, 1.1% had aortic valve thickening (AVT), 2.2% had mitral thickening, 1.1% had mitral regurgitation (MR), 1.1% had mitral stenosis (MS), 3.3 had pericarditis and 2.2% had complete right bundle branch block (RBBB). In multivariate analysis, cardiac involvement was significantly associated with extra-articular manifestations (OR = 6.05; 95% CI: 1.197-30.607, p = 0.029).

Conclusion

Based on these results, cardiac involvement was common and associated with the severity of the disease; hence, early detection of cardiac abnormalities and targeted treatment strategies of SpA and comorbidities are necessary to control the systemic inflammation and improve the excess of cardiovascular mortality in this group of patients.

Left atrial myocardial dysfunction in patients with primary aldosteronism as assessed by speckle-tracking echocardiography

BACKGROUND

We investigated the left atrial myocardial deformation in patients with primary aldosteronism using the speckle-tracking echocardiographic (STE) strain imaging technique.

METHODS

Our study included 107 primary aldosteronism patients [52 aldosterone-producing adenoma (APA) and 55 idiopathic hyperaldosteronism (IHA)] and 50 primary hypertensive patients. We performed conventional echocardiography to measure left atrial volume and ejection fraction, and STE to estimate left atrial myocardial deformation including peak velocity, strain and strain rate and calculate the ratio of E/e' to left atrial strain during left ventricular systole as the left atrial stiffness index.

RESULTS

Patients with APA, compared with those with IHA and primary hypertension had a significantly (P < 0.001) lower serum potassium concentration and higher 24-h urinary aldosterone excretion and plasma aldosterone-to-renin ratio. Patients with APA had a significantly (P < 0.01) larger maximal, precontraction, and minimal left atrial volumes and lower total, active and passive left atrial emptying fractions than those with IHA and primary hypertension. Among the three groups, patients with APA showed lowest left atrial velocity, strain, and strain rate during ventricular systole, early diastole and late diastole (P < 0.05) and highest left atrial stiffness index (P < 0.001). In unadjusted analysis, the left atrial strain, strain rate and stiffness index were significantly (P < 0.05) associated with plasma aldosterone concentration and urinary aldosterone excretion. After adjustment for various confounding factors, these associations remained statistically significant for urinary aldosterone excretion (P < 0.05) but not plasma aldosterone concentration (P ≥ 0.05).

CONCLUSION

Patients with primary aldosteronism, especially APA, had impaired left atrial deformation mechanics and increased left atrial stiffness, providing a promising insight into early detection of subclinical left atrial dysfunction by strain echocardiography.