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Mitral Valve Insufficiency

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https://www.readbyqxmd.com/read/28203419/diagnosis-of-mitral-valve-cleft-using-real-time-3-dimensional-echocardiography
#1
Xinchun Yuan, Aiyun Zhou, Li Chen, Cheng Zhang, Yan Zhang, Pan Xu
BACKGROUND: Mitral valve cleft (MVC) is the most common cause of congenital mitral insufficiency, and MVC may occur alone or in association with other congenital heart lesions. Direct suture and valvuloplasty are the major and effective treatments for mitral regurgitation (MR) caused by MVC. Therefore, it is important to determine the location and magnitude of the pathological damage due to MVC when selecting a surgical procedure for treatment. This study explored the application value of transthoracic real-time 3-dimensional (3D) echocardiography (RT-3DE) in the diagnosis of MVC...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28185355/catheter-ablation-of-ventricular-tachycardia-in-patients-with-mitraclip-device-preliminary-findings
#2
Laurent M Haegeli, Giuseppe D'Angelo, Nicola Trevisi, Stefano Stella, Alexander Breitenstein, Firat Duru, Corinna Brunckhorst, Paolo Della Bella
INTRODUCTION: Patients with mitral regurgitation are increasingly treated by percutaneous implantation of a MitraClip device. We investigate the feasibility and safety of the transmitral catheter route for catheter ablation of VT (ventricular tachycardia) in these patients. METHODS: The mitral valve with the MitraClip in situ was crossed under transesophageal three-dimensional echocardiographic and fluoroscopic guidance using a steerable sheath for ablation of the left ventricle...
February 10, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28152491/aggregatibacter-aphrophilus-infective-endocarditis-confirmed-by-broad-range-pcr-diagnosis-a-case-report
#3
Koji Hirano, Toshiya Tokui, Masahiro Inagaki, Taro Fujii, Yasumi Maze, Hirokazu Toyoshima
INTRODUCTION: Aggregatibacter aphrophilus is a rare cause of infective endocarditis. This pathogen is difficult to identify with common culture methods, which can lead to incorrect diagnosis and treatment. PRESENTATION OF CASE: A 72-year-old woman was admitted to a community hospital with a persistent high fever and deteriorating renal function. Based on negative blood culture and positive serum proteinase 3 anti-neutrophil cytoplasmic antibody (PR3-ANCA), acute renal failure associated with ANCA-rerated vasculitis was initially suspected...
January 19, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28139107/-venous-aneurysms-associated-with-lymphatic-malformations
#4
V Núñez Cerezo, M I Romo Muñoz, J Jiménez Gómez, P Triana Junco, A Sánchez Galán, G Chocarro Amatriain, J C López Gutiérrez
OBJECTIVES: To analyze and describe the association between the development of venous aneurysms of the mayor vessels in patients with lymphatic malformations. MATERIAL AND METHODS: Retrospective review of patients diagnosed with both VA and LM from 1993 to 2014 and a descriptive analysis of clinical course was performed. RESULTS: We found 6 patients, 50% females, who had LM and VA confirmed with imaging techniques. All were diagnosed between 20 weeks- 12 years of age...
April 10, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/28118782/initial-experience-with-xenograft-bioconduit-for-the-treatment-of-complex-prosthetic-valve-endocarditis
#5
Apostolos Roubelakis, Dimos Karangelis, Syed Sadeque, Bobby Yanagawa, Amit Modi, Clifford W Barlow, Steven A Livesey, Sunil K Ohri
INTRODUCTION: The treatment of complex prosthetic valve endocarditis (PVE) with aortic root abscess remains a surgical challenge. Several studies support the use of biological tissues to minimize the risk of recurrent infection. We present our initial surgical experience with the use of an aortic xenograft conduit for aortic valve and root replacement. METHODS: Between October 2013 and August 2015, 15 xenograft bioconduits were implanted for complex PVE with abscess (13...
January 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28111369/triple-valve-surgery-through-a-less-invasive-approach-early-and-mid-term-results
#6
Petar Risteski, Nadejda Monsefi, Aleksandra Miskovic, Tanja Josic, Sherife Bala, Razan Salem, Andreas Zierer, Anton Moritz
OBJECTIVES: A partial upper sternotomy has become established as a less invasive approach mainly for single and double valve surgery. This report evaluates the clinical outcomes of triple valve surgery performed through a partial upper sternotomy. METHODS: We reviewed the medical records of 37 consecutive patients (28 men, 76%) who underwent triple valve surgery through a partial upper sternotomy between 2005 and 2015. The patients' mean age was 67 ± 17 years; 27 (73%) were in New York Heart Association Class III or IV...
January 22, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28105540/echocardiographic-assessment-of-long-term-hemodynamic-characteristics-of-mechanical-mitral-valve-prostheses-with-different-mitral-valvular-diseases
#7
Xiliang Zhu, Qian Li, Hong Tang, Xijun Xiao
Mitral stenosis (MS) and mitral insufficiency (MI) have different pre-operative hemodynamic characteristics. However, it is unclear if there are differences in long-term echocardiographic characteristics of MS and MI patients after mechanical mitral valve replacement. This study is to compare long-term echocardiographic results of mechanical mitral valve prostheses between MS and MI patients. From January 2003 to January 2009, a total of 199 consecutive patients were recruited in this study. Patients were classified as group MS (n = 123) and MI (n = 76) according to the manifestation of mitral valvular disease...
January 19, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28097185/immediate-improvement-in-severe-mitral-regurgitation-after-aortic-valve-replacement-for-severe-aortic-insufficiency
#8
Ahmad Zeeshan, Mojun Zhu, John A Elefteriades
A 57-year-old male with ascending aortic aneurysm, severe aortic regurgitation, and severe mitral regurgitation (MR) underwent ascending aortic replacement and aortic valve replacement. MR in this patient with normal mitral valve morphology was considered secondary to aortic valve incompetency. Consequently, a surgical approach to restore aortic valve function was adopted with successful MR resolution. This case report demonstrates the possibility of reversing early functional mitral regurgitation without surgically approaching the mitral valve...
June 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28096824/extended-myectomy-in-the-treatment-of-patients-with-hypertrophic-obstructive-cardiomyopathy
#9
Mateusz Kuć, Piotr Kołsut, Jacek Różański, Maciej Dąbrowski, Mariusz Kłopotowski, Magda Kumor, Mirosław Kowalski, Natalia Kopyłowska, Jarosław Kuriata, Mariusz Kuśmierczyk
INTRODUCTION: Partial resection of the septal muscle is a well-established and effective method of surgical treatment for patients with hypertrophic obstructive cardiomyopathy (HOCM). The procedure is characterized by a low operative mortality rate and long-term clinical improvement that has been confirmed in numerous publications. Mitral insufficiency in patients with HOCM is mostly functional due to the effect of systolic anterior motion (SAM). AIM: To present the early results of surgical treatment provided to HOCM patients and to compare the effectiveness of two surgical procedures: isolated myectomy and myectomy combined with mitral valve replacement...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28069701/loss-of-axin2-results-in-impaired-heart-valve-maturation-and-subsequent-myxomatous-valve-disease
#10
Alexia Hulin, Vicky Moore, Jeanne M James, Katherine E Yutzey
AIMS: Myxomatous valve disease (MVD) is the most common aetiology of primary mitral regurgitation. Recent studies suggest that defects in heart valve development can lead to heart valve disease in adults. Wnt/β-catenin signalling is active during heart valve development and has been reported in human MVD. The consequences of increased Wnt/β-catenin signalling due to Axin2 deficiency in postnatal valve remodelling and pathogenesis of MVD were determined. METHODS AND RESULTS: To investigate the role of Wnt/β-catenin signalling, we analysed heart valves from mice deficient in Axin2 (KO), a negative regulator of Wnt/β-catenin signalling...
January 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28069327/early-ventricular-tachyarrhythmias-after-coronary-artery-bypass-grafting-surgery-is-it-a-real-burden
#11
Elisabeth M J P Mouws, Ameeta Yaksh, Paul Knops, Charles Kik, Eric Boersma, Ad J J C Bogers, Natasja M S de Groot
BACKGROUND: The prevalence of ventricular dysrhythmias (VD) [ventricular premature beats (VPBs), ventricular couplets (Vcouplets), ventricular runs (Vruns)] after coronary artery bypass grafting (CABG) has so far not been examined. The goal of this study is to examine characteristics of VD and whether they precede ventricular tachyarrhythmias (VTA) during a postoperative follow-up period of 5 days using continuous rhythm registrations. In addition, we determined predictive factors of VD/VTA...
January 6, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28043459/repair-of-parachute-and-hammock-valve-in-infants-and-children-early-and-late-outcomes
#12
Eva Maria Delmo Walter, Mariano Javier, Roland Hetzer
Parachute and hammock valves in children remain one of the most challenging congenital malformations to correct. We report our institutional experience with valve-preserving repair techniques and the early and late surgical outcomes in parachute and hammock valves in infants and children. From January 1990-June 2014, 20 infants and children with parachute (n = 12, median age = 2.5 years, range: 2 months-13 years) and hammock (n = 8, median age = 7 months, range: 1 month-14.9 years) valves underwent mitral valve (MV) repair...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28038799/the-role-of-myocardial-performance-index-in-assessment-of-left-ventricular-function-in-patients-with-valvular-mitral-regurgitation
#13
Muataz Fawzi Hussein, Samirra Rashid Jabbar Al-Mayahi, Samar I Essa
BACKGROUND: Mitral regurgitation (MR) is the most commonly encountered valve lesion in modern clinical practice. Severe mitral regurgitation may cause systolic dysfunction. Left ventricular ejection fraction may not be an accurate measurement of LV function in patients with mitral insufficiency. Myocardial performance index (MPI) is a simple non invasive measure of myocardial function. METHODS: The study involved 50 patients with valvular mitral regurgitation and 50 healthy subjects as a control group...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28033075/short-term-results-of-sinus-of-valsalva-aneurysm-repair
#14
Khakimjon Abralov, Amonjon Alimov
BACKGROUND: We retrospectively analyzed 65 patients who underwent surgical repair of sinus of Valsalva aneurysm over the last 27 years. METHODS: From January 1, 1988, to October 1, 2015, a total of 65 patients with sinus of Valsalva aneurysm underwent surgical repair in our hospital. There were 41 males (63%) and 24 females (37%), and their age ranged from 5 to 50 years (mean 23 ± 10 years, median 21 years). Out of the 65 patients, 45 (69%) had ruptured sinus of Valsalva aneurysm, 46 (70%) had a ventricular septal defect, and 22 (34%) had aortic valve insufficiency...
January 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28009953/mitral-valve-re-repair-in-an-adult-patient-having-undergone-mitral-ring-annuloplasty-at-five-years-of-age
#15
Jong Hun Kim, Tae Youn Kim, Jong Bum Choi, Ja Hong Kuh
In adult patients who have undergone mitral annuloplasty with a rigid ring at a young age, the mitral valve may ultimately deform and demonstrate insufficient growth because the valve annulus is fixed to the ring. Mitral valve re-repair, following this scenario, was performed for mitral stenoinsufficiency in a 26-year-old female patient who had undergone mitral annuloplasty with a rigid ring at the age of five years. The valve re-repair procedure consisted of decalcification and stripping of the anterior leaflet and annulus, posterior leaflet augmentation using an elliptical autologous pericardial patch, and a posterior strip annuloplasty sparing the anterior annulus and commissures...
July 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28003526/differential-cell-matrix-responses-in-hypoxia-stimulated-aortic-versus-mitral-valves
#16
Matthew C Sapp, Varun K Krishnamurthy, Daniel S Puperi, Saheba Bhatnagar, Gabrielle Fatora, Neelesh Mutyala, K Jane Grande-Allen
Tissue oxygenation often plays a significant role in disease and is an essential design consideration for tissue engineering. Here, oxygen diffusion profiles of porcine aortic and mitral valve leaflets were determined using an oxygen diffusion chamber in conjunction with computational models. Results from these studies revealed the differences between aortic and mitral valve leaflet diffusion profiles and suggested that diffusion alone was insufficient for normal oxygen delivery in mitral valves. During fibrotic valve disease, leaflet thickening due to abnormal extracellular matrix is likely to reduce regional oxygen availability...
December 2016: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/27994895/surgical-management-of-multiple-valve-endocarditis-associated-with-dialysis-catheter
#17
R Zea-Vera, M Sanchez, E Castañeda, L Soto-Arquiñigo
Endocarditis associated with dialysis catheter is a disease that must be suspected in every patient with hemodialysis who develops fever. Multiple valve disease is a severe complication of endocarditis that needs to be managed in a different way. There is very limited data for treatment and every case must be considered individually. We present a patient with this complication and describe the medical treatment and surgical management. We report the case of a 15-year-old patient with acute renal failure that develops trivalvular endocarditis after the hemodialysis catheter was placed, with multiple positive blood culture for Staphylococcus aureus...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27989087/the-double-orifice-valve-technique-to-treat-tricuspid-valve-incompetence
#18
Roland Hetzer, Mariano Javier, Eva Maria Delmo Walter
BACKGROUND: A straightforward tricuspid valve (TV) repair technique was used to treat either moderate or severe functional (normal valve with dilated annulus) or for primary/organic (Ebstein's anomaly, leaflet retraction/tethering and chordal malposition/tethering, with annular dilatation) TV incompetence, and its long-term outcome assessed. METHODS: A double-orifice valve technique was employed in 91 patients (mean age 52.6 ± 23.2 years; median age 56 years; range: 0...
January 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27956709/surgical-repair-of-congenital-left-atrial-aneurysm-and-mitral-valve-insufficiency-in-a-four-year-old-child
#19
C Tayyar Sarioglu, Yasemin Turkekul, Ahmet Arnaz, Emrah Sisli, Yusuf Kenan Yalcinbas, Ayse Sarioglu
Left atrial aneurysm is an extremely rare anomaly, which can be associated with supraventricular arrhythmia, compression of coronary arteries, intracardiac thrombus, life-threatening systemic embolization, pulmonary venous obstruction, mitral valve insufficiency, and congestive heart failure. Herein, we report a four-year-old boy who had a giant aneurysm of the left atrium and severe mitral regurgitation. The aneurysm and mitral valve cleft causing severe mitral regurgitation were successfully repaired.
December 12, 2016: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/27934625/ultrasonographic-findings-in-two-sheep-with-enzootic-calcinosis
#20
U Braun, K Mitchell, S Schramm, S Nogler, J Hatt, A Malbon
This report describes 2 sheep with enzootic calcinosis characterized by abnormal cardiovascular and respiratory findings and ascites causing abdominal distension. Both sheep were anorexic and listless and had increased heart and respiratory rates. Auscultation of the heart revealed a gallop rhythm in sheep 1 and a loud systolic heart murmur in sheep 2. The activities of liver enzymes were severely increased in both sheep. Abdominal ultrasonography showed severe ascites and congestion of the liver and caudal vena cava...
December 2016: Schweizer Archiv Für Tierheilkunde
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