mitral valvuloplasty
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2021 ◽  
Vol 27 (4) ◽  
pp. 53-59
Author(s):  
Elena Yordanova ◽  
Vasil Velchev ◽  
Arman Postadzhiyan ◽  
Nikolay Stoyanov ◽  
Blagorodna Karatancheva ◽  
...  

Besides the standart echcardiografic parameters for mitral stenosis assessment it is necessary to inquire the hemodynamic characteristics as well. The following article describes and illustrates step-by-step the invasive parameters and their significance in the assessment of mitral stenosis in patients who underwent percutaneous balloon mitral valvuloplasty.


2021 ◽  
Vol 8 ◽  
Author(s):  
Tomohiko Yoshida ◽  
Kazumi Shimada ◽  
Lina Hamabe ◽  
Tsuyoshi Uchide ◽  
Ryou Tanaka ◽  
...  

Background: Pulmonary arterial wave reflection provides novel information about pulmonary artery hemodynamics in pulmonary hypertension (PH). PH is common in dogs with myxomatous mitral valve disease (MMVD), though research examining the relationship between pulmonary arterial wave reflection and MMVD with PH is lacking.Hypothesis/Objective: This study investigated conventional echocardiographic parameters and pulmonary artery wave reflection parameters before and after mitral valvuloplasty in canine patients with PH due to MMVD. The parameters were backward pressure (Pb), forward pressure (Pf), and the reflection coefficient calculated as the ratio of peak Pb to peak Pf (RC).Animals: The study subjects were 10 client-owned dogs receiving mitral valvuloplasty for MMVD with PH.Methods: Conventional echocardiographic parameters and pulmonary artery wave reflection parameters were measured before and after mitral valvuloplasty. The relationships between pulmonary artery wave reflection parameters and echocardiographic parameters, estimation of pulmonary artery systolic pressure, and right atrium pressure (RAP) gained by catheter in mitral valvuloplasty were also investigated. Post-operative echocardiography and the measurement of pulmonary arterial wave reflection were performed 2 weeks after mitral valvuloplasty.Results: The parameters of normalized left ventricular internal diameter at end-diastole (LVIDDN), E velocity, and the estimation of pulmonary artery systolic pressure were significantly reduced post-operatively compared with baseline measurements (p < 0.05). Post-operative Pb decreased significantly compared with pre-operative measurements (8.8 ± 5.9 to 5.0 ± 3.2 mmHg, p = 0.037) as did RC (0.37 ± 0.15 to 0.22 ± 0.11, p < 0.01). A statistically significant positive correlation existed between wave reflection parameters and RAP, an estimation of pulmonary artery systolic pressure.Conclusions: Results demonstrate that mitral valvuloplasty can be used to treat secondary PH caused by MMVD, resulting in the improvement of post-operative echocardiographic and wave reflection parameters and a decrease in the right afterload. In some patients, some degree of vascular admittance mismatch persisted, despite the improvement of left atrial pressure. This may be indicative of residual pulmonary arterial disease, which may continue to adversely affect interactions between the right ventricle and the vasculature.


Author(s):  
Yoshiro Matsui ◽  
Suguru Kubota ◽  
Tatsuya Seki ◽  
Yasushige Shingu ◽  
Satoru Wakasa

Author(s):  
Omar Mohamed Raouf Mohamed Ahmed Elsaka ◽  
Omar Elsaka

Background: Percutaneous balloon mitral valvuloplasty is a procedure used to dilate the mitral valve in cases of rheumatic mitral stenosis. The catheter is inserted into the female vein to the right atrium and atrial septum. The mitral valve is then passed through the inflated balloon to facilitate effective integration of mitral adhesions, which increases the area of the mitral valve and decreases the rate of mitral stenosis. Mitral regurgitation is a potential problem, and thus balloon percutaneous mitral valvuloplasty (PBMV) is prevented in moderate to severe relapse. The Wilkins score studies mitral valve morphology and evaluation by echocardiography to assess the viability of PBMVs based on specific echocardiographic conditions. Conclusion: There are many factors in the immediate and long-term outcomes of patients undergoing PMV. Echo-Sc can be used in combination with other clinical and morphological predictions of PMV effects to identify patients who experience the best effects on PMV.


2021 ◽  
Author(s):  
Amiliana Mardiani Soesanto ◽  
Pangeran Akbar Syah ◽  
Rina Ariani ◽  
Doni Firman ◽  
Yovi Kurniawati ◽  
...  

Abstract Background: Several studies have reported left ventricular systolic dysfunction as measured by the global longitudinal strain (GLS) in patients with mitral stenosis. This study aims to determine left ventricular systolic function changes using global longitudinal strain early after balloon mitral valvuloplasty (BMV) and on long-term observation.Methods: Baseline echocardiography data and GLS were taken before BMV, followed up early after (2 to 7 days), and in the long-term (6 months to 1 year) after BMV.Result: Among 36 patients, the mean age was 43.41±10.04 y.o, female dominant (72%); the majority have atrial fibrillation (56%), with a median mitral valve area (MVA) before BMV of 0.6 (0.2-1.3) cm2 and mean mitral valve gradient before BMV of 12.95 ± 5.29 mmHg. GLS increased from -14.34 ± 3.05% to 15.84 ±3.11% and increased further to -17.29 ± 2.80% (p<0.05), at pre-BMV- early post-BMV, and long-term follow up, respectively. Conclusions: There is a significant improvement in LV GLS early after BMV compare to baseline. The GLS improved further at long-term evaluation (six months until one year) after BMV.


Author(s):  
Anupam Bhambhani ◽  
Amey Joshi

AbstractPercutaneous balloon venoplasty is widely employed for the management of central vein stenosis (CVS), a condition frequently encountered in patients on maintenance hemodialysis (MHD). The hypertrophied and fibrotic venous stenotic lesions often pose a challenge for interventionists, due to resistance to dilatation and high-elastic recoil. We report here successful utilization of mitral valvuloplasty balloon for percutaneous treatment of an unyielding brachiocephalic vein stenosis. Repeated failure of conventionally used peripheral balloon dilatation catheter prompted the use of a mitral valvuloplasty balloon that could exert higher radial pressure while preventing melon-seeding and hence successfully achieve stenosis dilatation. The mitral valvuloplasty balloon can be effectively and safely used for lesions resistant to repeated dilatations by conventional peripheral balloons. Rheological stress on central veins from ipsilateral arteriovenous fistula (AVF) may result in development of stenotic lesions, even in the absence of prior venous catheterization of the affected vein; therefore, in the presence of relevant symptoms, this diagnosis should not be excluded on the basis of absence of prior direct trauma at the stenosis site.


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