Heterogeneous reduction in regional wall stress after aortic valve replacement for aortic regurgitation: a distinct feature from aortic stenosis

Author(s):  
Shusaku Maeda ◽  
Kazuhiro Taniguchi ◽  
Hidetsugu Asanoi ◽  
Koichi Toda ◽  
Toshihiro Funatsu ◽  
...  
2016 ◽  
Vol 44 (2) ◽  
pp. 105-108
Author(s):  
Redoy Ranjan ◽  
Md Mushfiqur Rahman ◽  
Omar Sadeque Khan ◽  
Md Aftabuddin ◽  
Asit Baran Adhikary

A bicuspid aortic valve (BAV) can be a serious disorder of heart valve in which the valve only has two leaflets or flaps that control blood flow through the heart. Between one and two percent of all people have this defect and it affects more men than women. This report presents a case of severe aortic stenosis with mild to moderate aortic regurgitation due to bicuspid aortic valve with hypertension. A 37 years old male presented with high record of blood pressure and occasional shortness of breath on exertion. Echocardiography (Color Doppler) revealed severe aortic stenosis with mild to moderate aortic regurgitation due to bicuspid aortic valve with moderately severe concentric LV wall hypertrophy. Surgical treatment (aortic valve replacement) was scheduled based on echocardiography findings. On surgical resection a well defined bicuspid aortic valve was found with calcification and friable valve leaflet. Histopathology of valve tissue shows large areas of calcification. Patient was discharged from hospital on 7th POD with an advice to attend cardiac surgery OPD after 1 month. Aortic valve replacement must be considered in this type of lesion.Bangladesh Med J. 2015 May; 44 (2): 105-108


2021 ◽  

Aortic valve neocuspidization with fixed autologous pericardium according to the Ozaki technique has been proven to be an effective therapy for the treatment of aortic valvulopathies of various entities (aortic stenosis, aortic regurgitation, aortic valve endocarditis) in both tricuspid and bicuspid aortic valves. Thus, aortic valve neocuspidization with fixed autologous pericardium represents a versatile alternative to complex aortic valve repair, with better hemodynamics compared to biological aortic valve replacement and without the need for lifelong anticoagulation, which characterizes mechanical aortic valve replacement. The authors meticulously describe all the technical steps of this highly reproducible, standardized procedure.


Cardiology ◽  
2018 ◽  
Vol 141 (3) ◽  
pp. 132-140 ◽  
Author(s):  
Jubo Jiang ◽  
Xianbao Liu ◽  
Yuxin He ◽  
Qiyuan Xu ◽  
Qifeng Zhu ◽  
...  

Background: Transcatheter aortic valve replacement (TAVR) is a recent and an effective treatment option for high- or extreme-surgical-risk patients with symptomatic severe aortic stenosis. However, pure severe native aortic valve regurgitation (NAVR) without aortic stenosis remains a contraindication to TAVR. The aim of our systemic review analysis was to evaluate TAVR in patients with pure NAVR. Methods: We searched the published articles in the PubMed and Web of Science databases (2002–2017) using the Boolean operators for studies of NAVR patients undergoing TAVR. Reference lists of all returned articles were searched recursively for other relevant citations. Pooled estimates were calculated using a random-effects meta-analysis. Results: Finally, a total of 10 studies were included in this analysis. The CoreValve was more frequently used with a lower rate of device success and a higher rate of residual aortic regurgitation. The new-generation transcatheter heart valves (THVs) performed a significantly higher rate with less residual aortic regurgitation and a success rate close to 100%. The 30-day all-cause mortality rates ranged from 0 to 30% with an estimate summary rate of 9% (95% CI: 5–15%; I2 = 33%). Cerebrovascular events, major or life-threatening bleeding, major vascular complications, acute kidney disease, and new permanent pacemaker implantation occurred similarly in both the new- and old-generation THV devices. Conclusions: Aortic regurgitation remains a challenging pathology for TAVR. TAVR is a feasible and reasonable option for carefully selected patients with pure aortic regurgitation.


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