scholarly journals Aortic Root Enlargement during Aortic Valve Replacement in Adults

2021 ◽  
pp. 56-62
Author(s):  
Miroslav M. Furman ◽  
Sergey V. Varbanets ◽  
Oleksandr M. Dovgan
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Aortic Root ◽  
Severe Aortic Stenosis ◽  
Aortic Root Replacement ◽  
Safe Procedure ◽  
Aortic Pathology ◽  
Aortic Root Enlargement

Aortic valve replacement is a gold standard in the treatment of patients with severe aortic stenosis or combined aortic pathology. However, aortic valve pathology is often associated with a narrow aortic orifice, particularly in patients with severe aortic stenosis. In 1978, Rahimtoola first described the term of prosthesis-patient mismatch. He noted that effective orifice area of the prosthesis is smaller than that of the native valve. To minimize this complication, there are several surgical strategies: aortic root enlargement (ARE), implantation of a frameless biological prosthesis in the native position, neocuspidalization procedure, Ross procedure, aortic root replacement with xenograft or homograft. ARE is an excellent option, however, some authors outline additional perioperative risks. The aim. To analyze immediate results of ARE during isolated aortic valve replacement and in cases when it is combined with other heart pathologies. Materials and methods. Our study included 63 patients who underwent ARE. Isolated aortic valve replacement was performed in the majority of cases, but often aortic root replacement procedure was combined with coronary artery bypass grafting. Results and discussion. One of 63 patients died (hospital mortality 1.6%) at an early hospital stage (30 postoperative days). Measurement of the aortic valve ring was performed by two methods, through preoperative echocardiography and perioperative measurement using a valve sizer. However, perioperative dimension was chosen as the basis for the calculations. In 62 patients, the perioperative diameter of the aortic valve ring ranged from 19 to 23 mm, only one patient had a diameter of 24 mm. According to our findings, ARE enabled to achieve an average aortic ring size increase of 2.68 cm2 (from 1.5 to 3.4 cm2) and to prevent prosthesis-patient mismatch in 42 (66.7%) cases. Conclusions. Prosthesis-patient mismatch is considered a serious complication in the postoperative period. Narrow aortic root is a common pathology that should be considered during surgery. ARE is a safe procedure and is not associated with an increased risk of mortality and complications.

Aortic Root Enlargement and Aortic Valve Replacement for Calcified Supravalvular and Valvular Aortic Stenosis in Homozygous Familial Hypercholesterolemia: A Case Report

2019 ◽  
Vol 11 (4) ◽  
pp. NP221-NP225 ◽  
Author(s):  
Ujjwal Kumar Chowdhury ◽  
Abhinavsingh Chauhan ◽  
Suruchi Hasija ◽  
Jhulana Kumar Jena ◽  
Lakshmi Kumari Sankhyan ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Aortic Root ◽  
Rare Condition ◽  
Mechanical Prosthesis ◽  
Valvular Aortic Stenosis ◽  
Aortic Root Enlargement ◽  
Familial Homozygous Hypercholesterolemia

Familial homozygous hypercholesterolemia is a rare disease with diverse clinical presentations ranging from premature ischemic heart disease to aortic root stenosis but rarely presents with anginal symptoms due to supravalvular and valvular aortic stenosis. We report a 19-year-old male patient with familial homozygous hypercholesterolemia with progressive supravalvular and valvular aortic stenosis that ultimately required aortic root enlargement and aortic valve replacement using a mechanical prosthesis, despite aggressive medical therapy. Surgical importance of this rare condition is highlighted.

scholarly journals Aortic valve function post-replacement of severe aortic stenosis by transcatheter procedure versus surgery: a systematic review and metanalysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Charbel Abi Khalil ◽  
Barbara Ignatiuk ◽  
Guliz Erdem ◽  
Hiam Chemaitelly ◽  
Fabio Barilli ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Randomized Clinical Trials ◽  
Severe Aortic Stenosis ◽  
Paravalvular Leak ◽  
Effective Orifice Area ◽  
Surgical Aortic Valve Replacement ◽  
Transcatheter Heart Valve

AbstractTranscatheter aortic valve replacement (TAVR) has shown to reduce mortality compared to surgical aortic valve replacement (sAVR). However, it is unknown which procedure is associated with better post-procedural valvular function. We conducted a meta-analysis of randomized clinical trials that compared TAVR to sAVR for at least 2 years. The primary outcome was post-procedural patient-prosthesis-mismatch (PPM). Secondary outcomes were post-procedural and 2-year: effective orifice area (EOA), paravalvular gradient (PVG) and moderate/severe paravalvular leak (PVL). We identified 6 trials with a total of 7022 participants with severe aortic stenosis. TAVR was associated with 37% (95% CI [0.51–0.78) mean RR reduction of post-procedural PPM, a decrease that was not affected by the surgical risk at inclusion, neither by the transcatheter heart valve system. Postprocedural changes in gradient and EOA were also in favor of TAVR as there was a pooled mean difference decrease of 0.56 (95% CI [0.73–0.38]) in gradient and an increase of 0.47 (95% CI [0.38–0.56]) in EOA. Additionally, self-expandable valves were associated with a higher decrease in gradient than balloon ones (beta = 0.38; 95% CI [0.12–0.64]). However, TAVR was associated with a higher risk of moderate/severe PVL (pooled RR: 9.54, 95% CI [5.53–16.46]). All results were sustainable at 2 years.

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