scholarly journals Velocity Vector Imaging Assessment of Functional Change in the Right Ventricle during Transcatheter Closure of Atrial Septal Defect by Intracardiac Echocardiography

2020 ◽  
Vol 9 (4) ◽  
pp. 1132
Author(s):  
Se Yong Jung ◽  
Jae Il Shin ◽  
Jae Young Choi ◽  
Su-Jin Park ◽  
Nam Kyun Kim

The functional change of the right ventricle (RV) after atrial septal defect (ASD) via transcatheter closure is well known. We assessed the immediate RV functional change using velocity vector imaging (VVI) with intracardiac echocardiography (ICE). Seventy-four patients who underwent transcatheter closure of an ASD were enrolled. VVI in the “home view” of ICE showing the RV was obtained before and after the procedure. Velocity, strain, strain rate (SR), and longitudinal displacement were analyzed from VVI data, and the changes of these parameters before and after the procedure were compared. The velocity of the RV decreased after ASD transcatheter closure (3.97 ± 1.48 to 3.56 ± 1.4, p = 0.024), especially in the RV inlet and outlet. The average strain decreased (−19.21 ± 5.79 to −16.87 ± 5.03, p = 0.002), as did the average SR (−2.28 ± 0.64 to −2.03 ± 0.61, p = 0.006). The average longitudinal displacement did not differ. With the VVI technique, we could clearly observe RV functional change immediately after transcatheter closure of the ASD. RV functional change with regional difference may reflect the heterogeneity of volume reduction and suggest subclinical RV dysfunction. These findings can enhance our understanding of the physiologic changes in the RV during reverse remodeling.

2003 ◽  
Vol 42 (9) ◽  
pp. 1677-1682 ◽  
Author(s):  
Mario Zanchetta ◽  
Eustaquio Onorato ◽  
Gianluca Rigatelli ◽  
Luigi Pedon ◽  
Marco Zennaro ◽  
...  

2021 ◽  
pp. 16-21
Author(s):  
Kaldarbek Abdramanov ◽  
◽  
Emilbek Kokoev ◽  
Emir Alimbekov ◽  
Parida Arzibaeva ◽  
...  

The article gives a comparative assessment of the results of surgery for atrial septal defect (ASD) surgery in patients living in low and high altitude conditions. sizes of the right ventricle were practically equal, but at the same time higher than the norm. Objective. To conduct a comparative analysis of the direct results of ASD plastic in patients living in low, medium and high mountains Material and methods. The study material included 30 patients with ASD living in highlands; the control group consisted of 30 patients living in flat areas. Using clinical methods and instrumental studies, an analysis of operated patients, ASD plastic in adult patients with complicated pulmonary hypertension, heart failure, cardiac arrhythmias and functional tricuspid insufficiency was performed. Results. The authors studied pulmonary arterial pressure (PAP) indices between the groups both in the preoperative and postoperative periods, the analysis showed significant differences. The parameters of the right ventricle (RV) in the preoperative period had significant differences, however, in the postoperative period, the sizes of the right ventricle were practically equal, but at the same time higher than the norm. Conclusion. Our observation data show a significant decrease in PAP in patients living in high altitude conditions. However, the decrease in the PAP indicators remained slightly higher than the standard indicators.


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