scholarly journals AORTIC VALVE RECONSTRUCTION SURGERY USING AUTOLOGOUS PERICARDIUM: THE EXPERIENCE IN VIETNAM

2021 ◽  
Author(s):  
Thanh Hung Ngo ◽  
Cong Huu Nguyen ◽  
Duc Thinh Do ◽  
Hoang Long Luong ◽  
Thao Nguyen Phan ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Reoperation Rate ◽  
Effective Orifice Area ◽  
Aortic Cross Clamp Time ◽  
Area Index ◽  
Reconstruction Surgery ◽  
Replacement Surgery ◽  
Valve Reconstruction ◽  
The Mean

Objective: The study aimed to evaluate the indications and describe the aortic valve reconstruction techniques by Ozaki’s procedure in Vietnam and report mid-term outcomes of this technique in Vietnam. Methods: Between June 2017 and December 2019, 72 patients diagnosed with isolated aortic valve disease, with a mean age of 52.9 (19 – 79 years old), and a male:female ratio of 3:1 underwent aortic valve reconstruction surgery by Ozaki’s technique at Cardiovascular Center, E Hospital, Vietnam. Results: The aortic valve diseases consisted of aortic stenosis (42%), aortic regurgitation (28%), and a combination of both (30%). In addition, the proportion of aortic valves with bicuspid morphology and small annulus (≤ 21 mm) was 28% and 38.9%, respectively. The mean aortic cross-clamp time was 106 ± 13.8 minutes, mean cardiopulmonary bypass time was 136.7 ± 18.5 minutes, and 2.8% of all patients required conversion to prosthetic valve replacement surgery. The mean follow-up time was 26.4 months (12- 42 months), the survival rate was 95.8%, the reoperation rate was 2.8%, and rate of postoperative moderate or higher aortic valve regurgitation was 4.2%. Postoperative valvular hemodynamics was favorable, with a peak pressure gradient of 16.1 mmHg and an effective orifice area index of 2.3 cm . Conclusions: This procedure was safe and effective, with favorable valvular hemodynamics and a low rate of valvular degeneration. However, more long-term follow-up data are needed.

scholarly journals Aortic Valve Reconstruction with Use of Pericardial Leaflets in Adults with Bicuspid Aortic Valve Disease: Early and Midterm Outcomes

2014 ◽  
Vol 41 (6) ◽  
pp. 585-591 ◽  
Author(s):  
Meong Gun Song ◽  
Hyun Suk Yang ◽  
Jong Bum Choi ◽  
Je Kyoun Shin ◽  
Hyun Keun Chee ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Bicuspid Aortic Valve ◽  
Area Index ◽  
Sinotubular Junction ◽  
Artificial Graft ◽  
Valve Reconstruction ◽  
Initial Procedure ◽  
Hospital Deaths ◽  
The Mean ◽  
Leaflet Coaptation

In this study, we retrospectively analyzed the outcomes of adults with bicuspid aortic valve (BAV) disease who underwent aortic valve reconstructive surgery (AVRS), consisting of replacement of the diseased BAV with 2 or 3 pericardial leaflets plus fixation of the sinotubular junction for accurate and constant leaflet coaptation. From December 2007 through April 2013, 135 consecutive patients (mean age, 49.2 ± 13.1 yr; 73.3% men) with symptomatic BAV disease underwent AVRS. Raphe was observed in 84 patients (62.2%), and the remaining 51 patients had pure BAV without raphe. A total of 122 patients (90.4%) underwent 3-leaflet reconstruction, and 13 (9.6%) underwent 2-leaflet reconstruction. Concomitant aortic wrapping with an artificial graft was performed in 63 patients (46.7%). There were no in-hospital deaths and 2 late deaths (1.5%); 6 patients (4.4%) needed valve-related reoperation. The 5-year cumulative survival rate was 98% ± 1.5%, and freedom from valve-related reoperation at 5 years was 92.7% ± 3.6%. In the last available echocardiograms, aortic regurgitation was absent or trivial in 116 patients (85.9%), mild in 16 (11.9%), moderate in 2 (1.5%), and severe in one (0.7%). The mean aortic valve gradient was 10.2 ± 4.5 mmHg, and the mean aortic valve orifice area index was 1.3 ± 0.3 cm2/m2. The 3-leaflet technique resulted in lower valve gradients and greater valve areas than did the 2-leaflet technique. Thus, in patients with BAV, AVRS yielded satisfactory early and midterm results with low mortality rates and low reoperation risk after the initial procedure.

Stentless versus Stented Bioprosthetic Aortic Valves

2009 ◽  
Vol 4 (2) ◽  
pp. 61-73 ◽  
Author(s):  
Davy Cheng ◽  
John Pepper ◽  
Janet Martin ◽  
Rex Stanbridge ◽  
Francis D. Ferdinand ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Effective Orifice Area ◽  
Aortic Valves ◽  
Area Index ◽  
Orifice Area ◽  
Mean Differences ◽  
Bioprosthetic Valves

Objective This meta-analysis sought to determine whether stentless bioprosthetic valves improve clinical and resource outcomes compared with stented valves in patients undergoing aortic valve replacement. Methods A comprehensive search was undertaken to identify all randomized and nonrandomized controlled trials comparing stentless to stented bioprosthetic valves in patients undergoing aortic valve replacement available up to March 2008. The primary outcomes were clinical and resource outcomes in randomized controlled trial (RCT). Secondary outcomes clinical and resource outcomes in nonrandomized controlled trial (non-RCT). Odds ratios (OR), weighted mean differences (WMD), or standardized mean differences and their 95% confidence intervals (CI) were analyzed as appropriate. Results Seventeen RCTs published in 23 articles involving 1317 patients, and 14 non-RCTs published in 18 articles involving 2485 patients were included in the meta-analysis. For the primary analysis of randomized trials, mortality for stentless versus stented valve groups did not differ at 30 days (OR 1.36, 95% CI 0.68–2.72), 1 year (OR 1.01, 95% CI 0.55–1.85), or 2 to 10 years follow-up (OR 0.82, 95% CI 0.50–1.33). Aggregate event rates for all-cause mortality at 30 days were 3.7% versus 2.9%, at 1 year were 5.5% versus 5.9% and at 2 to 10 years were 17% versus 19% for stentless versus stented valve groups, respectively. Stroke or neurologic complications did not differ between stentless (3.6%) and stented (4.0%) valve groups. Risk of prosthesis-patient mismatch was numerically lower in the stentless group (11.0% vs. 31.3%, OR 0.30, 95% CI 0.05–1.66), but this parameter was reported in few trials and did not reach statistical significance. Effective orifice area index was significantly greater for stentless aortic valve compared with stented valves at 30 days (WMD 0.12 cm2/m2), at 2 to 6 months (WMD 0.15 cm2/m2), and at 1 year (WMD 0.26 cm2/m2). Mean gradient at 1 month was significantly lower in the stentless valve group (WMD −6 mm Hg), at 2 to 6 month follow-up (WMD −4 mm Hg,), at 1 year follow-up (WMD −3 mm Hg) and up to 3 year follow-up (WMD −3 mm Hg) compared with the stented valve group. Although the left ventricular mass index was generally lower in the stentless group versus the stented valve group, the aggregate estimates of mean difference did not reach significance during any time period of follow-up (1 month, 2–6 months, 1 year, and 8 years). Conclusions Evidence from randomized trials shows that subcoronary stentless aortic valves improve hemodynamic parameters of effective orifice area index, mean gradient, and peak gradient over the short and long term. These improvements have not led to proven impact on patient morbidity, mortality, and resource-related outcomes; however, few trials reported on clinical outcomes beyond 1 year and definitive conclusions are not possible until sufficient evidence addresses longer-term effects.

scholarly journals Initial results of aortic valve reconstruction using autologous pericardium (Ozaki's procedure)

2021 ◽  
Vol 33 ◽  
pp. 20-27
Author(s):  
Ngo Thanh Hung ◽  
Nguyen Cong Huu ◽  
Tran Thuy Nguyen ◽  
Nguyen Hoang Nam ◽  
Nguyen Ngoc Anh ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Area ◽  
Surgical Indications ◽  
Aortic Cross Clamp Time ◽  
Aortic Cross Clamp ◽  
Autologous Pericardium ◽  
Valve Reconstruction ◽  
Initial Results ◽  
Valve Area

Introduction: This study report the clinical characteristics, surgical indications, surgical technique and initial outcomes of autologous pericardial aortic valve reconstruction using Ozaki’s procedure. Methods: The study included consecutive patients with isolated aortic valve disease who underwent Ozaki’s procedure between June 2017 and December 2019. Aortic valve cups were reconstructed by autologous pericardium using Ozaki’s procedure. Results: Seventy-two patients were enrolled (mean age 52.9 ± 13 years; 53 males) and consisted of 30 aortic stenosis cases, 20 aortic regurgitation cases, and 22 patients with a combination of both 72 patients, a bicuspid aortic valve was present in 20, and 7 patients had infective endocarditis. Surgery was performed via a full or partial sternotomy. The procedure was successful in 70 case, and two patients were converted to prosthetic valve replacement. The aortic cross-clamp time was 106.3 ± 13.8 minutes, cardiopulmonary bypass time was 136.7 ± 18.5 minutes. One patient died of cardiac tamponade in hospital, and two patients underwent reoperation due to bleeding and sternal infection, respectively,  were observed during the follow-up period of 30 days. 1-month postoperative echocardiography revealed that one patient had moderate aortic valve regurgitation, max trans-valvular pressure gradient was 16.1 ± 2.3 mmHg, and aortic valve area was 2.5 ± 0.2 cm ². Conclusions: Aortic valve reconstruction using autologous pericardium by Ozaki’s procedure was feasible, good hemodynamics, and can be applied to all lesions of the aortic valve.

Minimally Invasive Ozaki Procedure in Aortic Valve Disease

2018 ◽  
Vol 13 (5) ◽  
pp. 332-337 ◽  
Author(s):  
Dinh H. Nguyen ◽  
Anh T. Vo ◽  
Khoi M. Le ◽  
Thanh T. Vu ◽  
Trang T. Nguyen ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Minimally Invasive ◽  
Conventional Technique ◽  
Valve Disease ◽  
Aortic Cross Clamp Time ◽  
Invasive Approach ◽  
Mortality And Morbidity ◽  
Valve Reconstruction ◽  
Rheumatic Valve Disease ◽  
The Mean

Objective The Ozaki procedure for aortic valve reconstruction was reported in 2014 with low mortality, a highly reproducible rate and a good midterm result. However, the procedure still requires conventional sternotomy to be accomplished. The aim of the study was to start an initial evaluation for the feasibility of the minimally invasive approach in combination with the Ozaki technique. Methods From January 06, 2017, to January 12, 2017, nine patients with severe aortic valve diseases underwent minimally invasive Ozaki procedure through an upper ministernotomy. The pericardium was harvested endoscopically using three trocars in different intercostal spaces. Then, a ministernotomy was performed and the Ozaki procedure was accomplished in a similar manner to the conventional technique. We analyzed the in-hospital mortality and complications of this group. Results The mean age was 47.4 years and 55.6% patients were female. The predominant pathology was chronic rheumatic valve disease (66.7%) and other patients were diagnosed with a bicuspid aortic valve. The mean aortic cross-clamp time was 106.8 minutes, the mean cardiopulmonary bypass time was 153.6 minutes, the mean ventilation time was 8.4 hours, and the mean intensive care unit time was 1.6 days. No mortality was recorded in our series, no conversion to full sternotomy was required, one patient experienced right hemothorax requiring drainage, and one patient required valve replacement. Intraoperative transesophageal echocardiography and predischarge transthoracic echocardiography showed five competent valves and three valves with trivial regurgitation, and no stenosis was detected. Conclusions Ministernotomy combined with Ozaki procedure might be feasible, as well as an alternative to conventional sternotomy. This approach is associated with low mortality and morbidity and may be beneficial in younger populations.

scholarly journals AN EARLY EGYPTIAN EXPERIENCEIN OZAKI TECHNIQUE

2020 ◽  
Vol 8 (11) ◽  
pp. 444-448
Author(s):  
Mohamed A. El-badawy ◽  
◽  
Mohamed R. Abdelbaky ◽  
Mostafa M. Abdalraouf ◽  
Hussein A. Zaher ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Postoperative Bleeding ◽  
Mechanical Valve ◽  
Mortality And Morbidity ◽  
Replacement Surgery ◽  
Significant Difference ◽  
The Mean

Background: The advantage of Ozaki technique for aortic valve replacement surgery over the conventional approach is still debated. This study aimed to evaluate early outcomes after aortic valve replacement using the Ozaki technique Methods: We prospectively included 20 patients who had aortic valve replacement May 2018 to June 2020. Postoperative bleeding, mechanical ventilation, ICU stay and echocardiographic outcomes were observed. Results: The mean age was 39.9±14.8 (20-69) years.13 patient had aortic regurge while 7 had aortic stenosis. Aortic cross-clamp (76.2±8.5 (60-100) and cardiopulmonary bypass times (103.8±15.3 (80-125).One patient (5%) was converted to aortic valve replacement by mechanical valve due to significant aortic regurge. Neither significant gradient nor regurge was found on one month follow-up echography. Freedom from infective endocarditis was found in all patients. No significant difference was found in the ejection fraction pre and post-operative. Conclusion: This novel technique seems to have a promising and favorable outcome with no need for anticoagulation and lesser post-operative complication compared to ordinary aortic valve replacement. This technique is associated with low mortality and morbidity.

Two Alternative Sutureless Strategies for Aortic Valve Replacement

2013 ◽  
Vol 8 (4) ◽  
pp. 253-257 ◽  
Author(s):  
Giovanni Concistrè ◽  
Giuseppe Santarpino ◽  
Steffen Pfeiffer ◽  
Pierandrea Farneti ◽  
Antonio Miceli ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Minimally Invasive ◽  
Valve Replacement ◽  
New Technology ◽  
Paravalvular Leak ◽  
Aortic Cross Clamp Time ◽  
Invasive Approach ◽  
The Mean

Objective Important comorbid conditions in patients referred for aortic valve replacement (AVR) require less invasive strategies. We describe our initial experience with the Perceval S (Sorin Group, Saluggia, Italy) and 3f Enable (Medtronic, Minneapolis, MN USA) sutureless aortic bioprostheses. Methods We compared intraoperative data, postoperative clinical outcomes, and echocardiographic results from patients receiving a Perceval S ( P group; n = 97) or a 3f Enable (E group; n = 32) prosthesis in two cardiac surgery departments (Nuremberg, Germany, and Massa, Italy). Results Baseline patient characteristics were similar in both groups, except for mean ± SD body surface area ( P group = 2.01 ± 2.9 m2, E group = 1.83 ± 3.8 m2; P < 0.001). Sixty-five patients (67%) in the P group and 19 patients (59.5%) in the E group ( P = 0.22) underwent minimally invasive AVR with either ministernotomy or right anterior minithoracotomy approach. Concomitant procedures were performed in 37 patients (38%) in the P group and 9 patients (28%) in the E group ( P = 0.56). In-hospital mortality was 2%. The mean ± SD prosthesis diameter was 23.5 ± 1.4 mm ( P group) compared with 22.1 ± 2 mm (E group) ( P < 0.001). In isolated AVR, aortic cross-clamp time was 36 ± 12.7 minutes in the P group and 66 ± 18 minutes in the E group ( P < 0.001). At a mean ± SD follow-up of 8.3 ± 4.5 months, survival was 97% (one death in the P group). In five patients ( P group = 1, E group = 4), a moderate paravalvular leak was present ( P = 0.013). The mean ± SD transvalvular gradient was 9.1 ± 3.3 mm Hg with the Perceval S and 11.2 ± 5.2 mm Hg with the 3f Enable ( P = 0.017). Conclusions Aortic valve replacement with sutureless aortic bioprosthesis is feasible, also with a minimally invasive approach. The Perceval S showed lower operative times and moderate paravalvular leaks and lower mean transvalvular gradients than did the 3f Enable, related to the larger diameter of the Perceval S implanted. Both prostheses showed an excellent hemodynamic performance. This new technology needs long-term follow-up.

Minimally Invasive Transaortic Repair of the Mitral Valve

2011 ◽  
Vol 14 (4) ◽  
pp. 232 ◽  
Author(s):  
Orlando Santana ◽  
Joseph Lamelas
Keyword(s):  
Mitral Valve ◽  
Aortic Valve ◽  
Mitral Regurgitation ◽  
Aortic Valve Replacement ◽  
Minimally Invasive ◽  
Valve Replacement ◽  
Operative Mortality ◽  
The Mean ◽  
Transaortic Approach

<p><b>Objective:</b> We retrospectively evaluated the results of an edge-to-edge repair (Alfieri stitch) of the mitral valve performed via a transaortic approach in patients who were undergoing minimally invasive aortic valve replacement.</p><p><b>Methods:</b> From January 2010 to September 2010, 6 patients underwent minimally invasive edge-to-edge repair of the mitral valve via a transaortic approach with concomitant aortic valve replacement. The patients were considered to be candidates for this procedure if they were deemed by the surgeon to be high-risk for a double valve procedure and if on preoperative transesophageal echocardiogram the mitral regurgitation jet originated from the middle portion (A2/P2 segments) of the mitral valve.</p><p><b>Results:</b> There was no operative mortality. Mean cardiopulmonary bypass time was 137 minutes, and mean cross-clamp time was 111 minutes. There was a significant improvement in the mean mitral regurgitation grade, with a mean of 3.8 preoperatively and 0.8 postoperatively. The ejection fraction remained stable, with mean preoperative and postoperative ejection fractions of 43.3% and 47.5%, respectively. Follow-up transthoracic echocardiograms obtained at a mean of 33 days postoperatively (range, 8-108 days) showed no significant worsening of mitral regurgitation.</p><p><b>Conclusion:</b> Transaortic repair of the mitral valve is feasible in patients undergoing minimally invasive aortic valve replacement.</p>

scholarly journals The Usefulness of [18F]F-Fluorodeoxyglucose and [18F]F-Sodium Fluoride Positron Emission Tomography Imaging in the Assessment of Early-Stage Aortic Valve Degeneration after Transcatheter Aortic Valve Implantation (TAVI)—Protocol Description and Preliminary Results

2021 ◽  
Vol 10 (3) ◽  
pp. 431
Author(s):  
Danuta Sorysz ◽  
Rafał Januszek ◽  
Anna Sowa-Staszczak ◽  
Anna Grochowska ◽  
Marta Opalińska ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Emission Tomography ◽  
Effective Orifice Area ◽  
Orifice Area ◽  
Transcatheter Aortic Valve ◽  
Positron Emission ◽  
Pet Ct ◽  
Transvalvular Gradient ◽  
Valve Implantation

Transcatheter aortic valve implantation (TAVI) is now a well-established treatment for severe aortic stenosis. As the number of procedures and indications increase, the age of patients decreases. However, their durability and factors accelerating the process of degeneration are not well-known. The aim of the study was to verify the possibility of using [18F]F-sodium fluoride ([18F]F-NaF) and [18F]F-fluorodeoxyglucose ([18F]F-FDG) positron emission tomography/computed tomography (PET/CT) in assessing the intensity of TAVI valve degenerative processes. In 73 TAVI patients, transthoracic echocardiography (TTE) at initial (before TAVI), baseline (after TAVI), and during follow-up, as well as transesophageal echocardiography (TEE) and PET/CT, were performed using [18F]F-NaF and [18F]F-FDG at the six-month follow-up (FU) visit as a part of a two-year FU period. The morphology of TAVI valve leaflets were assessed in TEE, transvalvular gradients and effective orifice area (EOA) in TTE. Calcium scores and PET tracer activity were counted. We assessed the relationship between [18F]F-NaF and [18F]F-FDG PET/CT uptake at the 6 = month FU with selected indices e.g.,: transvalvular gradient, valve type, EOA and insufficiency grade at following time points after the TAVI procedure. We present the preliminary PET/CT ([18F]F-NaF, [18F]F-FDG) results at the six-month follow-up period as are part of an ongoing study, which will last two years FU. We enrolled 73 TAVI patients with the mean age of 82.49 ± 7.11 years. A significant decrease in transvalvular gradient and increase of effective orifice area and left ventricle ejection fraction were observed. At six months, FU valve thrombosis was diagnosed in four patients, while 7.6% of patients refused planned controls due to the COVID-19 pandemic. We noticed significant correlations between valve types, EOA and transaortic valve gradients, as well as [18F]F-NaF and [18F]F-FDG uptake in PET/CT. PET/CT imaging with the use of [18F]F-FDG and [18F]F-NaF is intended to be feasible, and it practically allows the standardized uptake value (SUV) to differentiate the area containing the TAVI leaflets from the SUV directly adjacent to the ring calcifications and the calcified native leaflets. This could become the seed for future detection and evaluation capabilities regarding the progression of even early degenerative lesions to the TAVI valve, expressed as local leaflet inflammation and microcalcifications.

Outcomes of Surface Replacement Arthroplasty in Metacarpophalangeal Joints Affected by Noninflammatory Arthritis

Hand ◽  
2021 ◽  
pp. 155894472110289
Author(s):  
Matthew R. Claxton ◽  
Eric R. Wagner ◽  
Marco Rizzo
Keyword(s):  
Reoperation Rate ◽  
Surface Replacement ◽  
Free Survival ◽  
Metacarpophalangeal Joints ◽  
Surface Replacement Arthroplasty ◽  
Replacement Arthroplasty ◽  
Pain Ratings ◽  
The Mean ◽  
Revision Operations

Background The purpose of this study was to investigate the outcomes of surface replacement arthroplasty (SRA) for noninflammatory arthritis of the metacarpophalangeal (MCP) joint. Methods Records from 20 SRAs performed between 1995 and 2017 in 17 patients with noninflammatory arthritis affecting the MCP joint were retrospectively reviewed. The mean follow up was 6.6 years. Results Three arthroplasties (15%) underwent 4 revision operations. The 2-, 5-, 10-, and 15-year rates of survival from surface replacement implant revision were 90%, 90%, 79%, and 79%, respectively. Major complications occurring in revised joints included arthrodesis (n = 1) and amputation (n = 1). The overall reoperation rate was 35%. The 2-, 5-, 10-, and 15-year rates of overall reoperation-free survival were 75%, 69%, 60%, and 60%, respectively. Conclusions Pain ratings and MCP arc of motion significantly improved following arthroplasty. Metacarpophalangeal SRA for noninflammatory arthritis can improve arc of motion and pain. Revision is uncommon; however, 1 in 3 joints requires reoperation.

scholarly journals Comparison of the hemodynamic parameters of transaortic blood flow in patients with aortic stenosis depending on the bicuspid or tricuspid valve structure

2020 ◽  
Vol 24 (4) ◽  
pp. 74-80
Author(s):  
V. V. Bazylev ◽  
R. M. Babukov ◽  
F. L. Bartosh ◽  
A. V. Gorshkova
Keyword(s):  
Blood Flow ◽  
Aortic Valve ◽  
Aortic Stenosis ◽  
Effective Area ◽  
Effective Orifice Area ◽  
Hemodynamic Parameters ◽  
Structure Comparison ◽  
Area Index ◽  
Orifice Area ◽  
Echocardiographic Study

Purpose: comparison of hemodynamic parameters of transaortic blood flow in patients with aortic stenosis depending on the bivalve or tricuspid structure of the aortic valve.Materials and methods. A study of 180 patients with isolated aortic valve stenosis (AC) with two – and threeleaf structure was conducted. Patients were ranked into 3 comparison subgroups by the area of the effective AC opening from 4 to 1.5 cm2; 1.5 to 1 cm2 and less than 1 cm2. An echocardiographic study was performed with the calculation of all the necessary parameters for the study.Results. The comparison subgroups were comparable in terms of effective orifice area (AVA), effective orifice area index (IAVA), body mass index (BMI), LV UO index, and LV FV (p > 0.05). However, the indicators Vmax, Gmean, and AT in patients with a bivalve AK structure in all comparison subgroups were significantly higher than in patients with a tricuspid structure. Comparison subgroup with AVA from 4 to 1.5 cm2: Vmax 2.8 ± 9 m/s and 2.5 ± 6 m/s p = 0.02. Gmean 18.6 ± 7.2 mm Hg and 15 ± 6 mm Hg p = 0.03, AT 82 ± 12 ms and 70 ± 10 ms p = 0.002. Comparison subgroup with AVA from 1.5 to 1 cm2: Vmax 3.7 ± 0.8 m/s and 3.5 ± 0.6 m/s p = 0.02. Average transaortic gradient 37 ± 10 mm Hg and 29 ± 5 mm Hg p = 0.04, AT 103 ± 11 ms and 94 ± 10 ms p = 0.02. Comparison subgroup with an effective area of less than 1 cm2: Vmax 5.7 ± 1.2 m/s and 4.7 ± 0.7 m/s p = 0.001, Gmean 54 ± 15 and 43 ± 11 mm Hg p < 0.001, AT 127 ± 20 ms and 112 ± 10 ms p = 0.002.Conclusion. Echocardiographic indicators of Vmax and Gmean in patients with bivalve AC structure have higher values than in patients with tricuspid AC structure with a comparable opening area.

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