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degenerative mitral valve insufficiency

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https://www.readbyqxmd.com/read/27474333/moderate-aortic-valvular-insufficiency-invalidates-vortex-formation-time-as-an-index-of-left-ventricular-filling-efficiency-in-patients-with-severe-degenerative-calcific-aortic-stenosis-undergoing-aortic-valve-replacement
#1
Paul S Pagel, Brent T Boettcher, Derek J De Vry, Julie K Freed, Zafar Iqbal
OBJECTIVE: Transmitral blood flow produces a vortex ring (quantified using vortex formation time [VFT]) that enhances the efficiency of left ventricular (LV) filling. VFT is attenuated in LV hypertrophy resulting from aortic valve stenosis (AS) versus normal LV geometry. Many patients with AS also have aortic insufficiency (AI). The authors tested the hypothesis that moderate AI falsely elevates VFT by partially inhibiting mitral leaflet opening in patients with AS. DESIGN: Observational study...
October 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27443005/-approach-to-chronic-mitral-regurgitation-in-2016
#2
REVIEW
Panagiotis Antiochos, Olivier Muller, Matthias Kirsch, Melissa Agostini, Salah Qanadli, Eric Eeckhout, Pierre Vogt, René Prêtre, Alain Delabays, Xavier Jeanrenaud, Pierre Monney
Mitral regurgitation (MR) is the most frequent valvular disease in industrialised countries. MR is classified as primary (mostly degenerative with valve prolapse) or secondary (mainly due to underlying ischemic heart disease resulting in deformation of the valve structure). Surgical repair represents the optimal treatment for severe primary MR, whereas the benefits of surgical correction of secondary MR are controversial. Over the past few years, transcatheter techniques have been developed to treat MR, such as the percutaneous edge-to-edge procedure (MitraClip)...
May 25, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/27125106/-immediate-results-of-mitral-valve-surgery-in-asymptomatic-patients-with-severe-mitral-regurgitation-due-to-degenerative-mitral-vaive-disease
#3
V M Nazarov, A V Afanasyev, S I Zheleznev, A V Bogachev-Prokophiev, I I Demin, A M Karaskov
Degenerative mitral valve disease nowadays is the most common cause of mitral insufficiency in developed countries and is associated with high morbidity and mortality. In the last decades repairing the mitral valve has become the operation of choice for treatment of the mitral valve prolapse, enabling to improve the geometry and function of the left ventricle and long-term survival. Nevertheless, the problem of choice of method of management of severe mitral regurgitation in asymptomatic patients with degenerative mitral valve disease remains unsolved...
2015: Kardiologiia
https://www.readbyqxmd.com/read/27113393/non-ischaemic-mitral-valve-suture-annuloplasty-late-follow-up-results
#4
Rimantas Benetis, Paulius Orda, Jolanta Justina Vaškelytė, Vytenis Ivanauskas, Eglė Ereminienė, Povilas Jakuška, Loreta Jankauskienė
OBJECTIVE: To evaluate late outcomes after posterior mitral valve (MV) annulus double-suture annuloplasty for degenerative (non-ischaemic) MV insufficiency. DESIGN: Between 2005 and 2011, 138 patients underwent MV repair using posterior MV double-suture annuloplasty and an additional 105 patients underwent tricuspid valve repair. The study protocol included operative mortality, reoperation rate and reasons, as well as echocardiographic parameters at pre- and postoperative and follow-up periods (2-9 years)...
October 2016: Perfusion
https://www.readbyqxmd.com/read/26945836/abnormal-distortion-of-aortic-corevalve-bioprosthesis-with-suicide-left-ventricle-aortic-insufficiency-and-severe-mitral-regurgitation-during-transcatheter-aortic-valve-replacement
#5
Ferdinand Leya, J Michael Tuchek, Walter Coats
We present a patient with critical degenerative aortic stenosis, mitral annular and aortomitral continuity calcification, and senile sigmoid septal hypertrophy who underwent transcatheter aortic valve replacement using the CoreValve bioprosthesis. Immediately after predilation of the aortic valve (18-mm balloon), the patient developed severe hypotension and dynamic left ventricular outflow tract (LVOT) obstruction with systolic anterior motion of the anterior mitral leaflet, causing severe mitral regurgitation...
March 4, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/26936152/survival-in-patients-with-degenerative-mitral-stenosis-results-from-a-large-retrospective-cohort-study
#6
Ioana Pasca, Patricia Dang, Gaurav Tyagi, Ramdas G Pai
BACKGROUND: Severe mitral annular calcification causing degenerative mitral stenosis (DMS) is increasingly encountered in patients undergoing mitral and aortic valve interventions. However, its clinical profile and natural history and the factors affecting survival remain poorly characterized. The goal of this study was to characterize the factors affecting survival in patients with DMS. METHODS: An institutional echocardiographic database was searched for patients with DMS, defined as severe mitral annular calcification without commissural fusion and a mean transmitral diastolic gradient of ≥2 mm Hg...
May 2016: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/26901903/percutaneous-mitral-valve-repair-with-the-mitraclip-system-in-mitral-regurgitation-due-to-mitral-annular-calcification
#7
Mehmet Bilge, Sina Ali, Yakup Alsancak, Ayse Saatci Yasar
Percutaneous valve repair with the MitraClip represents a new and promising therapeutic option for patients with severe mitral regurgitation (MR). Mitral valve prolapse and flail leaflet are two major causes of degenerative MR in patients who underwent the MitraClip procedure. Mitral annular calcification (MAC) is also a less-frequent cause of degenerative MR. Among patients with MAC, open surgical treatment or valvular replacement is the treatment of choice for severe MR. Herein we present a case with severe MR secondary to MAC in whom successful percutaneous valve repair was accomplished with the MitraClip system due to the high risk of open-heart surgery...
May 2015: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/26853254/prevalence-and-correlates-of-mitral-regurgitation-in-the-current-era-an-echocardiography-study-of-a-chinese-patient-population
#8
Jianmin Li, Wenzhi Pan, Yigang Yin, Leilei Cheng, Xianhong Shu
OBJECTIVE: Little is known about the prevalence of mitral regurgitation (MR) in China until now. The objective of the study was to survey the prevalence, correlates and causes of MR in a large Chinese patient population in the current era. METHODS: This study retrospectively analysed the echocardiographic database of the subjects visiting our heart centre from 2010 to 2012. RESULTS: A total of 134,874 cases were included into the analysis...
February 2016: Acta Cardiologica
https://www.readbyqxmd.com/read/26814652/year-in-review-complex-valve-reconstruction
#9
Amine Mazine, Mitesh Badiwala, Gideon Cohen
PURPOSE OF REVIEW: In recent years, great emphasis has been placed on reconstructive techniques for the surgical management of heart valve disease. In this review, we discuss recent data and current practice as it pertains to the subject of reconstructive valve surgery. RECENT FINDINGS: New techniques and an improved understanding of the mechanisms of aortic insufficiency have led to marked improvement in the early and late outcomes of aortic valve repair. While mitral valve repair is the established approach for the management of degenerative mitral valve disease, surgical technique continues to be refined, with valve reconstruction principles applied to increasingly challenging anatomy...
March 2016: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/26699771/mitral-valve-gradient-after-repair-of-degenerative-regurgitation-with-restrictive-annuloplasty-a-conundrum-of-knowledge
#10
EDITORIAL
José M Bernal, Carlos A Mestres
No abstract text is available yet for this article.
January 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/26633280/-mitral-valve-repair-for-degenerative-mitral-insufficiency-likelihood-of-success-early-and-long-term-results-at-20-years
#11
Gonzalo Latorre S, Josefina Almeida Z, Santiago Besa B, Samuel Córdova A, Ricardo Zalaquett S
BACKGROUND: The 2014 Guidelines for the Management of Patients with Valvular Heart Disease require to know the probability of success and operative mortality of Mitral Valve Repair (MVR) for Degenerative Mitral Insufficiency (DMI) at a given institution. AIM: To assess the probability of success, operative mortality and long-term results of MVR for DMI. PATIENTS AND METHODS: The database of the Cardiovascular Surgery Service was reviewed for the period December 1991 to December 2013...
October 2015: Revista Médica de Chile
https://www.readbyqxmd.com/read/26599093/occurrence-of-mitral-valve-insufficiency-in-clinically-healthy-beagle-dogs
#12
Károly Vörös, Viktória Szilvási, Ferenc Manczur, Ákos Máthé, Jenő Reiczigel, Ingo Nolte, Stephan Hungerbühler
Chronic degenerative valve disease (CDVD) is the most common cardiac disease in dogs, usually resulting in mitral valve insufficiency (MVI). The goal of this study was to investigate the occurrence of MVI in clinically healthy Beagle populations. A total of 79 adult healthy Beagles (41 females and 38 males; age: 5.6 ± 2.7 years, range 1.4 to 11.7 years) were examined. The diagnosis of MVI was based on the detection of a systolic murmur heard above the mitral valve, and was confirmed by colour flow Doppler (CFD) echocardiography...
December 2015: Acta Veterinaria Hungarica
https://www.readbyqxmd.com/read/26554460/the-mechanism-of-mitral-regurgitation-influences-the-temporal-dynamics-of-the-vena-contracta-area-as-measured-with-color-flow-doppler
#13
Frederick C Cobey, Elena Ashihkmina, Thomas Edrich, John Fox, Douglas Shook, Bruce Bollen, Janis L Breeze, Wannakuwatte Waduge Sanouri Ursprung, Stanton K Shernan
BACKGROUND: In patients with mitral regurgitation (MR), the effective regurgitant orifice area can be estimated by measuring the vena contracta area (VCA). We hypothesize that the VCA has characteristic temporal dynamics related to the underlying mechanism of functional mitral regurgitation (FMR) versus degenerative mitral valve disease (DMVD). METHODS: VCA measurements obtained by planimetry of the proximal jet from 3D transesophageal echocardiographic (TEE) color flow Doppler data sets were acquired in 42 cardiac surgical patients, including 22 with FMR and 20 with DMVD...
February 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/26525578/mitral-degenerative-disease-mimicking-a-valvular-tumor-a-case-report
#14
Eiki Tayama, Tomohiro Ueda, Ryusuke Mori, Ken-ichi Imasaka, Yukihiro Tomita
BACKGROUND: In rare cases, echo findings of degenerative valve disease is similar to valvular mass. CASE PRESENTATION: A 56-year-old woman was evaluated for palpitation. Echocardiography revealed an 8- mm mass on the anterior mitral leaflet with minimal mitral insufficiency. Resection of the valve tumor was attempted to prevent a possible embolism. However, the lesion was not a tumor, but an aneurysm-like bulge on the anterior leaflet without chorda elongation. Triangular resection and ring annuloplasty were performed...
November 2, 2015: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/26493666/mitral-annulus-calcification
#15
REVIEW
Yigal Abramowitz, Hasan Jilaihawi, Tarun Chakravarty, Michael J Mack, Raj R Makkar
Mitral annulus calcification (MAC) is a chronic, degenerative process in the fibrous base of the mitral valve. Although MAC was initially thought to be an age-related degenerative process, there is accumulating evidence that other mechanisms, such as atherosclerosis and abnormal calcium-phosphorus metabolism, also contribute to the development of MAC. Despite its frequency, the clinical relevance of MAC is grossly underappreciated. Indeed, MAC is associated with an increased incidence of cardiovascular disease, mitral valve disease, arrhythmias, and mortality...
October 27, 2015: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/26481776/robotic-mitral-valve-repair-for-degenerative-mitral-valve-regurgitation-is-it-for-everyone
#16
EDITORIAL
Harold L Lazar
No abstract text is available yet for this article.
November 24, 2015: Circulation
https://www.readbyqxmd.com/read/26481775/robotic-mitral-valve-repair-for-simple-and-complex-degenerative-disease-midterm-clinical-and-echocardiographic-quality-outcomes
#17
Rakesh M Suri, Amit Taggarse, Harold M Burkhart, Richard C Daly, William Mauermann, Rick A Nishimura, Zhuo Li, Joseph A Dearani, Hector I Michelena, Maurice Enriquez-Sarano
BACKGROUND: Severe primary (degenerative) mitral regurgitation (MR) is repaired with durable results when simple single-scallop disease is addressed. The midterm quality outcomes of minimally invasive repair for complex disease are unknown, however. METHODS AND RESULTS: From January 2008 to January 2015, 487 patients (56±11 years, 360 men, ejection fraction 65±6%, 98.8% complete follow-up) underwent robotic mitral valve repair for severe nonischemic degenerative MR...
November 24, 2015: Circulation
https://www.readbyqxmd.com/read/26458792/prosthesis-patient-mismatch-due-to-small-ring-annuloplasty-in-patients-with-degenerative-mitral-insufficiency
#18
Naonori Kawamoto, Tomoyuki Fujita, Hiroki Hata, Yusuke Shimahara, Shunsuke Sato, Junjiro Kobayashi
BACKGROUND: Avoidance of prosthesis-patient mismatch (PPM) is important when selecting a mitral valve prosthesis. This study investigated the effect of PPM after small ring mitral valve annuloplasty on postoperative hemodynamics and the clinical course. METHODS: This study retrospectively reviewed 227 patients with symptomatic severe mitral insufficiency (MI) who underwent mitral valve repair for degenerative MI using an Edwards ring or band (size: 26-32mm) between 2003 and 2012...
August 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/26410002/mitral-valve-gradient-after-valve-repair-of-degenerative-regurgitation-with-restrictive-annuloplasty
#19
Takashi Murashita, Kevin L Greason, Rakesh M Suri, Richard C Daly, Lyle D Joyce, John M Stulak, Alberto Pochettino, David L Joyce, Joseph A Dearani, Hartzell V Schaff
BACKGROUNDS: Outcomes of mitral valve repair have been well described for patients with degenerative regurgitation. The hemodynamic effects of repair have not been as well studied, however. We report hemodynamic outcomes in these patients. METHODS: We reviewed 1147 patients who underwent isolated mitral valve repair for degenerative mitral valve regurgitation between January 2004 and December 2013. Baseline characteristics included mean age 58.6 ± 13.4 years, male sex in 792 patients (69...
January 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/26409712/one-hundred-percent-reparability-of-degenerative-mitral-regurgitation-intermediate-term-results-of-a-dynamic-engineered-approach
#20
Gerald M Lawrie, William Zoghbi, Stephen Little, Dipan Shah, Zegit Ben-Zekry, Nan Earle, Elizabeth Earle
BACKGROUND: Advances in understanding dynamic mitral valve function have led to a repair technique with no leaflet resection, accurate dynamic annular and chordal sizing, and preservation of left ventricular outflow tract dynamics. METHODS: This approach uses inflation of the left ventricle and ascending aorta with pressurized saline to achieve diastolic mitral valve locking and early isovolumic systole. The left ventricle is maximally dilated, the aorta and root are distended, and the mitral leaflets are opposed...
February 2016: Annals of Thoracic Surgery
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