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Head to Head Comparison between Different 3-Dimensional Echocardiographic Rendering Tools in the Imaging of Percutaneous Edge-to-Edge Mitral Valve Repair.

ABSTRACT: MitraClip (MC) is the most common percutaneous treatment for severe mitral regurgitation (MR). An accurate two-dimensional and three-dimensional echocardiographic (3DTEE) imaging is mandatory for the optimal procedural result. Recently transillumination 3DTEE rendering (3DTr) has been introduced integrating a virtual light source into the dataset and with the addition of glass effect (3DGl) allows to adjust tissue transparency improving depth perception and anatomical structure delineation in comparison with the standard 3DTEE (3DSt). The aim of this retrospective study in 30 patients undergoing MC, was to compare 3DSt, 3DTr, and 3DGl in mitral valve (MV) evaluation and procedural result assessment. 3DTEE acquisitions obtained before and after MC were processed with 3DSt, 3DTr, and 3DGl rendering. Each reconstruction was scored for quality and for ability to recognize MV anatomy, MR origin, clip position, dimension and grasping. Imaging quality was judged good or optimal in 52%, 76%, and 96% in 3DSt, 3DTr, and 3DGl reconstructions respectively. In 26/30 patients a diagnostic incremental value was found with 3DTr vs. 3DSt and in 15/26 with 3DGl vs. 3DTr and 3DSt. Only 3DGl with perpendicular cropping of the clip allowed to visualize and measure the grasped portion of each mitral leaflets. 3DTEE imaging during MC may be improved by 3DTr and 3DGl providing a better evaluation of MV, of leaflet grasping and of residual MR jets after MC.

SUBMITTER: Tamborini G

PROVIDER: S-EPMC8304678 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Conventional echocardiographic parameters or three-dimensional echocardiography to evaluate right ventricular function in percutaneous edge-to-edge mitral valve repair (PMVR).

Project description:Introduction:In this study, we evaluated right ventricular (RV) function before and after percutaneous mitral valve repair (PMVR) using conventional echocardiographic parameters and novel 3DE data sets acquired prior to and directly after the procedure. Patients and methods:Observational study on 45 patients undergoing PMVR at an university hospital. Results:In the overall collective, the 3D RV-EF before and after PMVR showed no significant change (p?=?0.16). While there was a significant increase of the fractional area change (FAC, from 23 [19-29] % to 28 [24-33] %, p?=?0.001), no significant change of the tricuspid annular plane systolic excursion (TAPSE, from 17?±?6?mm to 18?±?5?mm (standard deviation), p?=?0.33) was observed. Regarding patients with a reduced RV-EF (< 35%), a significant RV-EF improvement was observed (from 27 [23-34] % to 32.5 [30-39] % (p?=?0.001). 71.4% of patients had an improved clinical outcome (improvement in 6-minute walk test and/or improvement in NYHA class of more than one grade), whereas clinical outcome did not improve in 28.6% of patients. Using univariate logistic regression analysis, the post-PMVR RV-EF (OR 1.15: 95% CI 1.02-1.29; p?=?0.02) and the change in RV-EF (OR 1.13: 95% CI 1.02-1.25; p?=?0.02) were significant predictors for improved clinical outcome at 6?months follow up. Conclusion:Thus, RV function may be an important non-invasive parameter to add to the predictive parameters indicating a potential clinical benefit from treatment of severe mitral regurgitation using PMVR.

| S-EPMC6723083 | biostudies-literature

Complications Following Percutaneous Mitral Valve Edge-to-Edge Repair Using MitraClip.

Project description:Percutaneous mitral valve edge-to-edge repair with MitraClip (Abbott, Abbott Park, Illinois) has emerged as an effective and safe treatment for symptomatic mitral regurgitation in suitable patients. The safety of the MitraClip procedure is well established, and the rate of major complications is 4.35%. We present 4 cases of mitral regurgitation in patients who had complications following the MitraClip procedure. (Level of Difficulty: Intermediate.).

| S-EPMC8311053 | biostudies-literature

Percutaneous mitral valve edge-to-edge repair for late systolic anterior motion after surgical mitral valve repair: a case report.

Project description:BackgroundLate post-operative systolic anterior motion (SAM) is a rare but challenging issue. The feasibility of percutaneous mitral valve edge-to-edge repair (PMVR) using the MitraClip to treat late refractory SAM after surgical mitral valve repair has rarely been reported in the literature.Case summaryAn 88-year-old woman with a history of mitral valve repair for a P2 prolapse 14 years before, presented with signs of congestive heart failure. Transoesophageal echocardiogram (TOE) demonstrated significant SAM of the anterior mitral leaflet, resulting in the detachment from the posterior mitral leaflet in mid-to-late systole and severe mitral regurgitation (MR). The heart team decided to perform PMVR using the MitraClip to simultaneously address the issues of SAM and MR, considering the patient's high surgical risk. TOE after the clip deployment at the medial edge of the mitral valve, where the most severe SAM was detected, confirmed resolution of SAM with marked reduction of MR. The patient was discharged home with good haemodynamic compensation.DiscussionPost-operative SAM typically occurs immediately after the reparative surgery and resolves with conservative treatment; however, persistent SAM requiring repeat surgery remains a serious concern. As an alternative strategy, the MitraClip has some advantages, including low procedural risk, immediately observable results, and the ability to relocate the clip. Meanwhile, the greater risk of post-procedural mitral stenosis, particularly in patients undergoing mitral repair, should be taken into account. In our case, the clip deployment at the medial edge of the valve could minimize the progression of mitral stenosis with a satisfactory reduction of MR.

| S-EPMC8564687 | biostudies-literature

Mortality after percutaneous edge-to-edge mitral valve repair: a contemporary review.

Project description:Percutaneous edge-to-edge mitral valve (MV) repair is a relatively new treatment option for mitral regurgitation (MR). After the feasibility and safety having been proved in low-surgical-risk patients, the use of this procedure has shifted more to the treatment of high-risk patients. With the absence of randomized controlled trials (RCT) for this particular subgroup, observational studies try to add evidence to the safety aspect of this procedure. These also provide short- and mid-term mortality figures. Several mortality predictors have been identified, which may help the optimal selection of patients who will benefit most from this technique. In this article we provide an overview of the literature about mortality and its predictors in patients treated with the percutaneous edge-to-edge device.

| S-EPMC4805767 | biostudies-literature

Successful Percutaneous Edge-to-Edge Mitral Valve Repair in a Patient With Mediastinal Shift.

Project description:Mediastinal shift often induces deformation of the esophagus and the cardiac chamber. We describe the case of percutaneous mitral edge-to-edge valve repair in a patient with mediastinal shift. Esophagography enabled the advancement of the transesophageal echocardiography probe without esophageal damage, and transesophageal echocardiography successfully guided the percutaneous mitral edge-to-edge valve repair procedure. (Level of Difficulty: Intermediate.).

| S-EPMC8299760 | biostudies-literature

National outcomes of urgent vs. non-urgent percutaneous edge-to-edge transcatheter mitral valve repair.

Project description:BackgroundThe current data regarding outcomes of transcatheter edge-to-edge mitral valve repair with the MitraClip system in the urgent setting has not been well described. Therefore, we sought to evaluate the outcomes of urgent MitraClip procedures compared with non-urgent ones.MethodThe Nationwide Inpatient Sample database years 2011-2017 was used to identify hospitalizations for MitraClip in the urgent setting. Propensity score matching was used to compare the patients who underwent MitraClip in urgent versus non-urgent settings.ResultsA total of 15,993 patients underwent the MitraClip procedures from 2011 to 2017. 3,929 (24.6%) were urgent and 12,064 (75.4%) were non-urgent. Patients in the urgent group were younger (75.08 vs 77.46) and more likely to be African American (p < 0.001). The urgent group had a higher burden of comorbidities such as diabetes, atrial fibrillation, renal failure and pulmonary circulatory disorders. Using multivariable logistic regression, there was no statistically significant difference in mortality between urgent and non-urgent groups (4.2% vs 1.8%, OR 0.64; 95% CI 0.41-1.00, p = 0.051). Using propensity score matching, there was no statistically significant difference in the in-hospital mortality between urgent and non-urgent groups (4.4% vs 2.8%, OR: 1.60, 95% CI: 0.71-3.63, p = 0.254). The risks of acute kidney injury and discharge to an outside facility were higher in the urgent group (p < 0.001).ConclusionNo significant in-hospital mortality for patients who underwent urgent versus non-urgent MitraClip procedures. Therefore, urgent MitraClip procedure might be an acceptable option when indicated.

| S-EPMC9294183 | biostudies-literature

Percutaneous Mitral Valve Edge-to-Edge Repair Using Volume Intracardiac Echocardiography—First in Human Experience.

Project description:Highlights•First in human experience: percutaneous mitral valve repair (PMVR) procedure guided by three-dimensional volume intracardiac echocardiography (ICE).•Volume ICE adds valuable information to two-dimensional ICE•Further improvements such as wider opening angle of the volume ICE probe are needed for routine use in PMVR.

| S-EPMC6034481 | biostudies-other

Torrential Mitral Regurgitation After Transcatheter Edge-to-Edge Mitral Valve Repair.

Project description:A patient with severe mitral regurgitation and chronic systolic heart failure taking inotropic support at home presents for transcatheter edge-to-edge mitral valve repair, complicated by torrential mitral regurgitation from damaged mitral leaflets requiring escalating mechanical circulatory support and ultimately expedited orthotopic heart transplantation. (Level of Difficulty: Intermediate.).

| S-EPMC8305671 | biostudies-literature

Sequential Venous Percutaneous Transluminal Angioplasty and Balloon Dilatation of the Interatrial Septum during Percutaneous Edge-to-Edge Mitral Valve Repair.

Project description:Percutaneous edge-to-edge mitral valve repair (PMVR) is widely used for selected, high-risk patients with severe mitral valve regurgitation (MR). This report describes a case of 81-year-old woman presenting with severe and highly symptomatic mitral valve regurgitation (MR) caused by a flail of the posterior mitral valve leaflet (PML). PMVR turned out to be challenging in this patient because of a stenosis and tortuosity of both iliac veins as well as sclerosis of the interatrial septum, precluding the vascular and left atrial access by standard methods, respectively. We managed to achieve atrial access by venous percutaneous transluminal angioplasty (PTA) and balloon dilatation of the interatrial septum. Subsequently, we could advance the MitraClip® system to the left atrium, and deployment of the clip in the central segment of the mitral valve leaflets (A2/P2) resulted in a significant reduction of MR.

| S-EPMC5568623 | biostudies-literature

Echocardiographic assessment of mitral valve morphology after Percutaneous Transvenous Mitral Commissurotomy (PTMC).

Project description:AimsPTMC produces significant changes in mitral valve morphology as improvement in leaflets mobility. The determinants of such improvement have not been assessed before.Methods and resultsThe study included 291 symptomatic patients with mitral stenosis undergoing PTMC. Post-PTMC subvalvular splitting area was a determinant of post-PTMC excursion in both the anterior (B 0.16, 95% CI 0.03 to 0.30, p < 0.05) and the posterior (B 0.12, 95% CI 0.01 to 0.24, p < 0.05) leaflets. Another determinant was the post-PTMC transmitral pressure gradient for anterior (B -0.02, 95% CI -0.04 to -0.005, p < 0.01) and posterior (B -0.01, 95% CI -0.04 to -0.005, p < 0.05) leaflets excursion. The relationship between post-PTMC MVA and leaflet excursion was non-linear "S curve". There was a steep increase of both anterior (p, 0.02) and posterior (p, 0.03) leaflets excursion with increased MVA till the MVA reached a value of about 1.5 cm2; after which both linear and S curves became nearly parallel.ConclusionThe improvement in leaflets excursion after PTMC is determined by several morphologic and hemodynamic changes produced in the valve. The increase in MVA improves mobility within limit; after which any further increase in MVA is not associated by a significant improvement in mobility in both leaflets.

| S-EPMC2248162 | biostudies-literature

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