112 Extensive posterior mitral annulus decalcification and reconstruction of the atrioventricular groove: Mmidterm outcomes

2011 ◽  
Vol 27 (5) ◽  
pp. S103-S104
Author(s):  
J. Price ◽  
D. Glineur ◽  
L. De Kerchove ◽  
G. El Khoury
Keyword(s):  
Mitral Annulus ◽  
Atrioventricular Groove

scholarly journals Left atrial ıntramural hematoma after radiofrequency catheter ablation of left lateral accessory pathway

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Salim Yaşar ◽  
Yalçın Gökoğlan ◽  
Suat Görmel ◽  
Serkan Asil ◽  
Hasan Kutsi Kabul
Keyword(s):  
Catheter Ablation ◽  
Left Atrium ◽  
Left Atrial ◽  
Radiofrequency Catheter Ablation ◽  
Accessory Pathway ◽  
Intramural Hematoma ◽  
Mitral Annulus ◽  
Conservative Approach ◽  
Atrioventricular Groove ◽  
Concealed Accessory Pathway

AbstractWe report a case of left atrial hematoma after ablation of left lateral concealed accessory pathway. A 46-year-old male patient experienced chest pain after radiofrequency ablation. Transthoracic echocardiography and computed tomography revealed the intramural mass consistent with hematoma in the left atrium. He was hemodynamically stable, and conservative approach was decided. Atrioventricular groove is a vulnerable part of left atrium, and ablation of left free wall accessory pathway may require targeting both atrial and ventricular surfaces of the mitral annulus. Avoidance of forceful catheter manipulation during the electrophysiological procedure is important for prevention of this complication. Optimal periprocedural anticoagulation might reduce the risk of procedure-related thromboembolic complications, but electrophysiologists should always pay attention to an intramural hematoma that may occur after radiofrequency catheter ablation.

Percutaneous Mitral Annuloplasty for Treatment of Functional Mitral Regurgitation

2009 ◽  
Vol 5 (1) ◽  
pp. 67
Author(s):  
Lutz Buellesfeld ◽  
Lazar Mandinov ◽  
Eberhard Grube ◽  
◽  
◽  
...  
Keyword(s):  
Mitral Regurgitation ◽  
Coronary Sinus ◽  
Standard Of Care ◽  
Mitral Annulus ◽  
Functional Mitral Regurgitation ◽  
Invasive Treatment ◽  
Large Variability ◽  
Mitral Annuloplasty ◽  
Number Of Patients ◽  
Anatomical Relationship

Functional mitral regurgitation affects a substantial proportion of patients with congestive heart failure due to myocardial infarction or dilated cardiomyopathy. Functional mitral regurgitation greatly increases morbidity and mortality. Surgical annuloplasty is the standard of care for symptomatic patients with moderate or severe functional mitral regurgitation; however, a large number of patients are refused surgery. Several percutaneous approaches have been developed to address the need for less invasive treatment of mitral annulus dilatation. Devices using coronary sinus to cinch the mitral annulus are relatively easy to use; however, a number of factors may limit their clinical application, such as suboptimal anatomical relationship between the coronary sinus and mitral annulus, risk of coronary artery compression, large variability in the coronary venous anatomy and conflict with other therapies such as ablation or cardiac resynchronisation. Direct mitral annuloplasty is anticipated to be more effective than the coronary sinus approaches; however, it has yet to prove its safety and efficacy in carefully designed clinical trials. The best candidates and the best timing for each percutaneous mitral annuloplasty therapy, whether direct or indirect, have yet to be identified.

Quantitative analysis of mitral annulus morphology in aortic stenosis using real time 3-dimentional transesophageal echocardiography

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
W Suzuki ◽  
Y Nakano ◽  
H Ohashi ◽  
H Ando ◽  
K Waseda ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Aortic Stenosis ◽  
Transesophageal Echocardiography ◽  
Real Time ◽  
Mitral Annulus ◽  
Left Ventricular Ejection ◽  
Control Group ◽  
The Impact ◽  
The Relationship ◽  
Saddle Shape

Abstract Background Normal mitral annulus morphology is known to be saddle shape. There are a few reports regarding the relationship between flattening of the mitral annular saddle shape and mitral regurgitation. However, the relationship between aortic stenosis (AS) and mitral annulus morphology is unknown. Purpose To assess the impact of AS on mitral annular saddle shape using 3-dimentional transesophageal echocardiography. Methods A total of consecutive 83 subjects including 44 patients with severe AS (AS group) and 39 patients without AS (control group), who underwent real-time 3-dimentional transesophageal echocardiography of the mitral valve, were enrolled. The 3-dimentional geometry of the mitral annulus apparatus was evaluated by the parameters analyzed using dedicated quantification software such as anteroposterior diameter (APD), commissural width (CW), annular height (AH), mitral annulus (MA) area and annular height to commissural width ratio (AHCWR) as shown in Figure. We assessed the impact of severe AS on AHCWR, which is the key parameter showing flattening of the mitral annular saddle shape. These parameters were adjusted by body surface area (BSA). Exclusion criteria included left ventricular ejection fraction <50%, the presence of aortic regurgitation, mitral valve disease, pericardial or congenital diseases, endocarditis, cardiomyopathy, prior myocardial infarction, and paroxysmal or persistent atrial fibrillation. Results Comparisons of mitral valve geometry between AS group and control group are summarized in Table. AH/BSA and AHCWR were significantly lower in AS group compared with control group. Multiple linear regression analysis revealed severe AS to be a significant and independent predictor of lowering AHCWR (β=−0.39, t=−4.04, p<0.001) (adjusted with MA area, selected by stepwise analysis). Conclusions Severe AS might contribute to flattening of the mitral annular saddle shape, lead to the mitral annular structural remodeling. Assessment of the mitral annulus morphology might help evaluating severe AS. Mitral annulus 3-dimensional geometry Funding Acknowledgement Type of funding source: None

scholarly journals Tip-to-Base LAMPOON for Transcatheter Mitral Valve Replacement With a Protected Mitral Annulus

2021 ◽  
Vol 14 (5) ◽  
pp. 541-550 ◽  
Author(s):  
John C. Lisko ◽  
Vasilis C. Babaliaros ◽  
Jaffar M. Khan ◽  
Norihiko Kamioka ◽  
Patrick T. Gleason ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Mitral Annulus ◽  
Transcatheter Mitral Valve Replacement

scholarly journals Myxomatous Mitral Valve Disease with Mitral Valve Prolapse and Mitral Annular Disjunction: Clinical and Functional Significance of the Coincidence

2021 ◽  
Vol 8 (2) ◽  
pp. 9
Author(s):  
Nina C. Wunderlich ◽  
Siew Yen Ho ◽  
Nir Flint ◽  
Robert J. Siegel
Keyword(s):  
Mitral Valve ◽  
Mitral Valve Disease ◽  
Morphological Changes ◽  
Morphological Characteristics ◽  
Mitral Annulus ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Valve Disease ◽  
Left Ventricular Myocardium ◽  
Basal Portion

The morphological changes that occur in myxomatous mitral valve disease (MMVD) involve various components, ultimately leading to the impairment of mitral valve (MV) function. In this context, intrinsic mitral annular abnormalities are increasingly recognized, such as a mitral annular disjunction (MAD), a specific anatomical abnormality whereby there is a distinct separation between the mitral annulus and the left atrial wall and the basal portion of the posterolateral left ventricular myocardium. In recent years, several studies have suggested that MAD contributes to myxomatous degeneration of the mitral leaflets, and there is growing evidence that MAD is associated with ventricular arrhythmias and sudden cardiac death. In this review, the morphological characteristics of MAD and imaging tools for diagnosis will be described, and the clinical and functional aspects of the coincidence of MAD and myxomatous MVP will be discussed.

scholarly journals 407 Is Pickelhaube Sign really the hallmark of arrhythmogenic MVP in athletes? And does MVP really cause sudden death? A case report

2020 ◽  
Vol 22 (Supplement_N) ◽  
pp. N131-N131
Author(s):  
Massimo Bolognesi
Keyword(s):  
Mitral Valve ◽  
Sudden Death ◽  
Mitral Valve Prolapse ◽  
Sports Medicine ◽  
Cardiac Death ◽  
Stress Test ◽  
Mitral Annulus ◽  
Unexpected Death ◽  
Premature Ventricular Contractions ◽  
Military Helmet

Abstract The Pickelhaube Sign is today recognized as a novel Echocardiographic Risk Marker for Malignant Mitral Valve Prolapse Syndrome. Mitral Valve Prolapse (MVP) has long been recognized to be a relatively common valve abnormality in the general population. Patients with relatively non-specific symptoms and asymptomatic athletes who have MVP still represent an important clinical conundrum for any physician involved in preventive medicine and sports screening. Although cardiac arrhythmias and/or cardiac death are an undesirable problem in MVP patients, when these subjects were studied with Holter Electrocardiogram (ECG) monitoring a prevalence of ventricular arrhythmias up to 34% was observed, with premature ventricular contractions as the most common pattern (66% of cases). At this regard a paper by Anders et al. described a series of cases that suggest that even clinically considered benign cases of MVP in young adults may cause sudden and unexpected death. However, cardiac arrest and Sudden Arrhythmic Cardiac Death (SCD) resulted in rare events only in patients with MVP based on data from a community study. A middle-aged athletic male who has been practicing competitive cycling for about 20 years came to our Sports Medicine Centre to undergo screening of sports preparation for competitive cycling and the related renewal of certification for participation in sports competitions. This athlete was always considered suitable in previous competitive fitness assessments performed in other sports medicine centers. His family history was unremarkable, as well as his recent and remote pathological anamnesis. The physical examination revealed a 3/6 regurgitation heart murmur with a click in the mid late systole. Previous echocardiographic examinations revealed a MVP which was considered benign with mild not relevant mitral regurgitation. He did not complain of symptoms such as dyspnoea or heart palpitations during physical activity. The resting ECG showed negative T waves in the inferior limb leads, and the stress test showed sporadic premature ventricular beats (a couple) with right bundle branch block morphology. An echocardiogram confirmed the presence of a classic mitral valve prolapse with billowing of both mitral leaflets, associated with a mild to moderate valve regurgitation. The TDI exam at the level of the lateral mitral annulus showed a high-velocity mid-systolic spike like a Pickelhaube sign, i.e. spiked German military helmet morphology. Consequently, an in-depth diagnostic imaging with cardiac magnetic resonance imaging was proposed, but the athlete refused it, both because he was totally asymptomatic and above all because he would be forced to pay a considerable amount of money as the examination is not guaranteed by the Italian National Health Service. In conclusion, the athlete remained sub judice as for competitive suitability, Finally, the question is: does MVP really cause sudden death? Is it enough to detect the Pickelhaube signal by echocardiography to stop this athlete? Let us bear in mind that this athlete was asymptomatic, and he had not had any trouble during exercise and maximal effort for many years. Why must we declare him unsuitable to do competitive sports?

Fokus: Mitral Annulus Disjunction Arrhythmic Syndrome

2020 ◽  
Vol 9 (06) ◽  
pp. 556-561
Author(s):  
Frauke Wilma Gisela Wenzelburger ◽  
Axel Poesch ◽  
Alexander Bleckmann ◽  
Burghard Schumacher
Keyword(s):  
Mitral Annulus

ZusammenfassungAls „Mitral annular Disjunction“ (MAD) bezeichnet man eine pathologische, umschriebene, bindegewebige Dehiszenz zwischen dem kompakten Myokard des linken Ventrikels und dem Mitralklappenanulus. Das Bindegewebe ersetzt anulusnah das Myokard und strahlt in unregelmäßiger Form in die benachbarte Muskulatur des linken Ventrikels ein. Die MAD tritt oft in Verbindung mit einem Mitralklappenprolaps (MVP) auf. Die inhomogene Fibrosierung des klappennahen Myokards sowie eingelagerte und versprengte Purkinje-Fasern bilden ein arrhythmogenes Substrat. Die MAD wird deshalb gehäuft bei Patienten mit ventrikulären Herzrhythmusstörungen bzw. bei plötzlichem Herztod mit und ohne MVP gefunden. Die Diagnose wird mittels Echokardiografie oder kardialer Magnetresonanztomografie bzw. Computertomografie gestellt. Da die prognostische Bedeutung der MAD unklar ist, gibt es bisher keine Therapieempfehlung.

scholarly journals Transcatheter mitral valve repair: an overview of current and future devices

Open Heart ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. e001564
Author(s):  
Ole De Backer ◽  
Ivan Wong ◽  
Maurizio Taramasso ◽  
Francesco Maisano ◽  
Olaf Franzen ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Mitral Valve ◽  
Mitral Valve Repair ◽  
Mitral Annulus ◽  
Therapeutic Strategies ◽  
Heart Team ◽  
Valve Repair ◽  
Careful Patient ◽  
Transcatheter Mitral Valve Repair ◽  
Tailored Approach

The field of transcatheter mitral valve repair (TMVr) for mitral regurgitation (MR) is rapidly evolving. Besides the well-established transcatheter mitral edge-to-edge repair approach, there is also growing evidence for therapeutic strategies targeting the mitral annulus and mitral valve chordae. A patient-tailored approach, careful patient selection and an experienced interventional team is crucial in order to optimise procedural and clinical outcomes. With further data from ongoing clinical trials to be expected, consensus in the Heart Team is needed to address these complexities and determine the most appropriate TMVr therapy, either single or combined, for patients with severe MR.

Mitral Annulus Calcification: Is It Benign?

1992 ◽  
Vol 40 (4) ◽  
pp. 427-427
Author(s):  
Moshe Algom ◽  
Zalman Zilber ◽  
Beni Habot ◽  
Jack Madjar ◽  
Zwi Schlesinger
Keyword(s):  
Mitral Annulus ◽  
Mitral Annulus Calcification
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