Left Atrial Size and Function Are Related to Pulmonary Hypertension in Coronary Artery Disease

2012 ◽  
Vol 29 (5) ◽  
pp. 535-540 ◽  
Author(s):  
Yoko Miyata-Fukuoka ◽  
Masaki Izumo ◽  
Yuichi Shimada ◽  
Eiji Kuwahara ◽  
Swaminatha V. Gurudevan ◽  
...  
Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Scott L Purga ◽  
Elizabeth A Penner ◽  
Elizabeth Mauer ◽  
Irina Sobol ◽  
Evelyn M Horn ◽  
...  

Objective: Left atrial (LA) enlargement and dysfunction have poor prognostic significance in heart failure and coronary artery disease. However, the correlation between LA diameter and World Health Organization (WHO) Group 2 pulmonary hypertension (PH) severity has not been well studied. Hypothesis: We hypothesized that LA enlargement as a marker of LA remodeling in response to pressure and volume overload may contribute to higher pulmonary arterial pressures (PAP) in this population, independent of comorbidities and left ventricular ejection fraction (LVEF). Methods: After exclusion for severe left-sided valvular disease, 100 patients with isolated or mixed WHO Group 2 PH defined by right heart catheterization were studied in a cross-sectional retrospective analysis at a single institution. Linear LA anteroposterior diameter was obtained from the parasternal long-axis view on two dimensional TTE. LVEF, LV E/A Ratio, and LV Mass Index were measured according to ASE guidelines. LV E/A and LV Mass Index was recorded in 80 subjects and 79 subjects, respectively. Mean PAP was assessed on RHC. TTE and RHC were performed within one year of each other. Results: LA diameter was significantly associated with mean PAP after adjustment for age, sex, body-mass index, presence of coronary artery disease, hypertension, atrial fibrillation, and LVEF in multivariable linear regression analysis. In this multivariable model, a one centimeter increase in LA diameter predicted an average increase in mean PAP of 2.78 mmHg (95% CI 0.10, 5.46, p = 0.0423). In a subset of this population, LVEF, LV E/A Ratio, and LV Mass Index were not significant predictors of mean PAP. Reduction in cardiac index was noted with increasing LA diameter but this trend did not reach statistical significance. Conclusion: LA enlargement is significantly associated with increased mean PAP in patients with WHO Group 2 PH. LA enlargement may be a proxy for LA dysfunction and our data suggests that increased LA diameter may be a predictor of WHO Group 2 PH severity. Further studies of LA dimension, volume, and function are warranted to further our understanding of the left atrium’s relationship to PH.


2014 ◽  
Vol 155 (41) ◽  
pp. 1624-1631 ◽  
Author(s):  
Attila Nemes ◽  
Tamás Forster

Left atrium is not a passive heart chamber, because it has a dynamic motion respecting heart cycle and, in accordance with its stretching, it releases atrial natriuretic peptides. Since in the course of certain invasive procedures the size of left atrium may change substantially, its exact measurement and functional characterization are essential. The aim of the present review is to summarize echocardiographic methods for the assessment of left atrial size and functional parameters. Orv. Hetil., 2014. 155(41), 1624–1631.


PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0129274 ◽  
Author(s):  
Bin Xiong ◽  
Dan Li ◽  
Jianling Wang ◽  
Laxman Gyawali ◽  
Jinjin Jing ◽  
...  

2020 ◽  
Vol 29 ◽  
pp. S174
Author(s):  
D. Makarious ◽  
A. Bhat ◽  
S. Khanna ◽  
H. Chen ◽  
A. Drescher ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Bingjie Wu ◽  
Jingjing Jiang ◽  
Minghui Gui ◽  
Lin Liu ◽  
Qiqige Aleteng ◽  
...  

The aim of this study was to evaluate the association between thyroid hormone levels, pulmonary hypertension (PH), and pulmonary artery systolic pressure (PASP) in euthyroid patients with coronary artery disease (CAD). A cross-sectional study was conducted in individuals who underwent coronary angiography and were diagnosed as CAD from March 2013 to November 2013. 811 subjects (185 women and 626 men) were included in this study. PASP was measured by transthoracic Doppler echocardiography. 86 patients were diagnosed as PH and had significantly higher free thyroxine (FT4) levels than those without PH. Multiple logistic regression analysis demonstrated an independent association of FT4 levels with PH after adjustment of gender, age, body mass index, systolic blood pressure, left ventricular ejection fraction, hypertension, and medication use of calcium channel blockers, ACE inhibitors, angiotensin II receptor antagonists, and nitrates. Serum-free triiodothyronine (FT3) and thyroid-stimulating hormone (TSH) were not associated with PH. Furthermore, multivariate linear regression analysis showed that FT4 levels emerged as an independent predictor for PASP, while FT3 and TSH levels were not associated with PASP. Our study demonstrated that, in euthyroid patients with CAD, FT4 was an independent risk factor for PH, and FT4 levels were independently associated with PASP.


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