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https://www.readbyqxmd.com/read/28203542/robotic-trans-atrial-and-trans-mitral-ventricular-septal-resection
#1
REVIEW
W Randolph Chitwood
Localized ventricular septal hypertrophy, also known as idiopathic hypertrophic subaortic stenosis or idiopathic hypertrophic subaortic septal obstruction (IHSS), can create severe ventricular outflow obstruction. This often results in a high sub-aortic pressure gradient with potentially lethal symptoms. In 1960, Braunwald described the hemodynamic characteristics of IHSS, and thereafter, Morrow developed a trans-aortic approach to resect a large part of the ventricular septum, enlarging the outflow tract. The Morrow operation has remained the gold standard for surgically treating this pathology...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28185392/thrombotic-valvular-dysfunction-with-transcatheter-mitral-interventions-for-postsurgical-failures
#2
Marvin H Eng, Adam Greenbaum, Dee Dee Wang, Janet Wyman, Dnp, Heider Arjomand, Pradeep Yadav, Hassan Nemeh, Gaetano Paone, Mayra Guerrero, William O'Neill
BACKGROUND: Degenerated surgical mitral valve repairs or surgical prostheses are currently being treated with transcatheter mitral valve replacement (TMVR). We report the procedural and mid-term assessment of thirteen cases. METHODS: From 12/2013 to 12/2015, 13 consecutive patients with degenerated mitral valve repair or valve replacement were treated. Patients were assessed for mitral valve academic valve consortium (MVARC) defined outcomes. RESULTS: Immediate procedural MVARC defined technical success was 92%...
February 10, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28124513/a-systematic-review-and-meta-analysis-of-chordal-replacement-versus-leaflet-resection-for-isolated-posterior-mitral-valve-prolapse
#3
Christos G Mihos, Evin Yucel, Orlando Santana
INTRODUCTION: Chordal replacement (Chord MVr) for isolated posterior mitral valve prolapse allows for preservation of the native mitral valve apparatus. The potential benefits of this approach, as compared with leaflet resection (Resection), are not clearly defined. EVIDENCE ACQUISITION: A systematic review and meta-analysis was conducted on operative, clinical, and echocardiographic outcomes. Risk ratios (RR) were calculated by the Mantel-Haenszel method under a fixed or random effects model, as appropriate...
January 25, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28118782/initial-experience-with-xenograft-bioconduit-for-the-treatment-of-complex-prosthetic-valve-endocarditis
#4
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/28105998/simultaneous-transfemoral-aortic-and-transseptal-mitral-valve-replacement-utilising-sapien-3-valves-in-native-aortic-and-mitral-valves
#5
Mohammad Bashir, Gardar Sigurdsson, Phillip A Horwitz, Firas Zahr
AIMS: Concomitant severe calcific aortic and mitral stenosis is a relatively uncommon but very challenging valvular heart disease to manage. We sought to evaluate the feasibility of a fully percutaneous approach to replace both stenotic native mitral and aortic valves using SAPIEN 3 valves. METHODS AND RESULTS: An 87-year-old woman with chronic kidney disease stage 3, pul-monary hypertension, chronic obstructive pulmonary disease, a permanent pacemaker, and atrial fibrillation was referred with Class III heart failure symptoms...
January 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28103203/the-change-in-nt-pro-bnp-and-post-ptmc-echocardiography-parameters-in-patients-with-mitral-stenosis-a-pilot-study
#6
Morteza Safi, Fariba Bayat, Zahra Ahmadi, Masood Shekarchizadeh, Isa Khaheshi, Mohammadreza Naderian
BACKGROUND: The change in the level of NT-Pro-BNP (N-terminal Pro-Brain Natriuretic Peptide) is now considered as a reflection of the hemodynamic alterations and its circulatory reductions reported early after successful PTMC (percutaneous transvenous mitral commissurotomy). The present study aims to assess the change in the level of NT-Pro BNP following PTMC in patients with mitral stenosis and also to determine the association between circulatory NT-Pro BNP reduction and post-PTMC echocardiography parameters...
January 18, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28096824/extended-myectomy-in-the-treatment-of-patients-with-hypertrophic-obstructive-cardiomyopathy
#7
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/28095388/the-use-of-mitraclip-for-symptomatic-patients-with-hypertrophic-obstructive-cardiomyopathy
#8
Felix Thomas, Florian Rader, Robert J Siegel
OBJECTIVES: Current nonpharmacological therapies for symptomatic patients with hypertrophic obstructive cardiomyopathy (HOCM), including septal myectomy and alcohol septal ablation (ASA), carry significant risks for serious cardiac conduction abnormalities. We present a review of the currently available published data regarding the novel use of the relatively low-risk MitraClip® system in the treatment of symptomatic patients. METHODS: Data were collected from 4 separate studies on the use of the MitraClip on 15 symptomatic HOCM patients with systolic anterior motion (SAM) of the mitral valve apparatus...
January 18, 2017: Cardiology
https://www.readbyqxmd.com/read/28079765/early-recurrence-of-tako-tsubo-cardiomyopathy-in-an-elderly-woman-with-amyotrophic-lateral-sclerosis-different-triggers-inducing-different-apical-ballooning-patterns
#9
Francesco Santoro, Riccardo Ieva, Armando Ferraretti, Elena Carapelle, Luisa De Gennaro, Luigi Maria Specchio, Matteo Di Biase, Natale Daniele Brunetti
We report the case of early recurrence of Tako-Tsubo cardiomyopathy in an elderly woman with amyotrophic lateral sclerosis triggered by different stressors. A first episode with typical apical ballooning was anticipated by an emotional stress; a second, characterized by systolic anterior motion of the mitral valve associated with mitral regurgitation and severe intra-ventricular gradient, was precipitated by surgical stress and hypovolemia. We therefore hypothesize both a possible link between amyotrophic lateral sclerosis and Tako-Tsubo cardiomyopathy, and between different stressors and different Tako-Tsubo patterns...
January 11, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28077510/mitral-implant-of-the-inovare-transcatheter-heart-valve-in-failed-surgical-bioprostheses-a-novel-alternative-for-valve-in-valve-procedures
#10
Diego Felipe Gaia, Ademir Massarico Braz, Matheus Simonato, Danny Dvir, João Roberto Breda, Gustavo Calado Ribeiro, Carolina Baeta Ferreira, José Augusto Marcondes Souza, Enio Buffolo, José Honório Palma
OBJECTIVES: Reoperative procedure for the treatment of a failed mitral bioprosthesis is associated with considerable risk. In some cases, mortality is high and might contraindicate the benefit of the procedure. The minimally invasive valve-in-valve (ViV) transcatheter mitral valve implant offers an alternative less-invasive approach, reducing morbidity and mortality. The objective of this paper was to evaluate the mitral ViV approach using the Braile Inovare prosthesis. METHODS: The transcatheter balloon-expandable Braile Inovare prosthesis was used in 12 cases...
January 10, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28070915/mitral-valve-resistance-determines-hemodynamic-consequences-of-severe-rheumatic-mitral-stenosis-and-immediate-outcomes-of-percutaneous-valvuloplasty
#11
Hamidreza Sanati, Reza Zolfaghari, Niloufar Samiei, Yousef Rezaei, Mitra Chitsazan, Ali Zahedmehr, Farshad Shakerian, Reza Kiani, Ata Firouzi, Reza Rezaei Tabrizi
INTRODUCTION: The mitral valve area (MVA) poorly reflects the hemodynamic status of (MS). In this study, we compared the MVA with mitral valve resistance (MVR) with regard to the determination of hemodynamic consequences of MS and the immediate outcomes of percutaneous balloon mitral valvuloplasty (PBMV). METHODS: In a prospective study, 36 patients with severe rheumatic MS with left ventricular ejection fraction (LVEF) >50% were evaluated. They underwent transthoracic echocardiography (TTE) and catheterization...
January 10, 2017: Echocardiography
https://www.readbyqxmd.com/read/28049599/effective-orifice-area-during-exercise-in-bileaflet-mechanical-valve-prostheses
#12
Philippe B Bertrand, Matteo Pettinari, Hélène De Cannière, Herbert Gutermann, Christophe J P Smeets, David Verhaert, Robert A Dion, Pascal Verdonck, Pieter M Vandervoort
BACKGROUND: The aims of this study were to investigate the evolution of the transprosthetic pressure gradient and effective orifice area (EOA) during dynamic bicycle exercise in bileaflet mechanical heart valves and to explore the relationship with exercise capacity. METHODS: Patients with bileaflet aortic valve replacement (n = 23) and mitral valve replacement (MVR; n = 16) prospectively underwent symptom-limited supine bicycle exercise testing with Doppler echocardiography and respiratory gas analysis...
December 31, 2016: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28043427/a-comparison-of-2-mitral-annuloplasty-rings-for-severe-ischemic-mitral-regurgitation-clinical-and-echocardiographic-outcomes
#13
Khalil Fattouch, Marco Moscarelli, Sebastiano Castrovinci, Francesco Guccione, Pietro Dioguardi, Giuseppe Speziale, Patrizio Lancellotti
Controversies regarding the choice of annuloplasty rings for treatment of ischemic mitral regurgitation still exist. Aim of the study is to compare early performance of 2 different rings in terms of rest and exercise echocardiographic parameters (transmitral gradient, systolic pulmonary artery pressure, and mitral valve area), clinical outcomes, and recurrence of mitral regurgitation. From January 2008 till December 2013, prospectively collected data of patients who underwent coronary artery bypass grafting and undersizing mitral valve annuloplasty for severe chronic ischemic mitral regurgitation at our Institution were reviewed...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28007871/hypertrophic-cardiomyopathy-the-edge-to-edge-secures-the-correction-of-the-systolic-anterior-motion
#14
Jean François Obadia, Nils Basillais, Xavier Armoiry, Daniel Grinberg, Andrei Dondas, Martine Barthelet, François Derimay, Gilles Rioufol, Gerard Finet, Matteo Pozzi
OBJECTIVES: Although septal myectomy is the technique of choice for hypertrophic cardiomyopathy, the surgical management of concomitant mitral valve lesions is controversial. Various complex surgeries have been proposed to address mitral valve lesions. We propose a simple option using an edge-to-edge mitral valve repair through the aortic valve in addition to the septal myectomy. METHODS: We performed an observational analysis of our prospectively collected database...
December 22, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27989082/impact-of-prosthesis-patient-mismatch-after-mitral-valve-replacement
#15
Calogera Pisano, Carmela Rita Balistreri, Oreste Fabio Triolo, Rosalba Franchino, Alberto Allegra, Veronica Capuccio, Vincenzo Argano, Giovanni Ruvolo
BACKGROUND: The study aim was to determine the impact of prosthesis-patient mismatch (PPM) on early and late clinical outcomes, left atrial and ventricular remodeling, late tricuspid valve regurgitation and pulmonary hypertension (PH) in patients after mitral valve replacement (MVR). METHODS: A total of 46 patients (mean age 66 ± 9.3 years) with mitral valve diseases and undergoing isolated MVR was enrolled in the study. The mitral valve effective orifice area (EOA) was determined using the continuity equation and indexed for the patient's body surface area (EOAi)...
January 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27989067/the-presence-of-left-atrial-thrombus-is-associated-with-the-neutrophil-to-lymphocyte-ratio-in-patients-with-rheumatic-mitral-valve-stenosis
#16
Ender Ozal, Erdal Belen, Ender Ozgun Cakmak, Gunduz Durmus, Hamdi Pusuroglu
BACKGROUND: Rheumatic mitral valve stenosis (RMVS)-induced left atrial thrombus (LAT) and embolic complications may have clinically devastating consequences. Stasis in the left atrium induced by valvular obstruction is a major factor in the development of thrombus. However, the development of thrombus may not be solely associated with stasis, as it is known that the inflammatory process increases the tendency for thrombosis. The study aim was to examine the relationship between the neutrophil-to-lymphocyte ratio (NLR), an indicator of inflammation, and the existence of LAT...
March 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27973580/a-small-molecule-inhibitor-of-sarcomere-contractility-acutely-relieves-left-ventricular-outflow-tract-obstruction-in-feline-hypertrophic-cardiomyopathy
#17
Joshua A Stern, Svetlana Markova, Yu Ueda, Jae B Kim, Peter J Pascoe, Marc J Evanchik, Eric M Green, Samantha P Harris
Hypertrophic cardiomyopathy (HCM) is an inherited disease of the heart muscle characterized by otherwise unexplained thickening of the left ventricle. Left ventricular outflow tract (LVOT) obstruction is present in approximately two-thirds of patients and substantially increases the risk of disease complications. Invasive treatment with septal myectomy or alcohol septal ablation can improve symptoms and functional status, but currently available drugs for reducing obstruction have pleiotropic effects and variable therapeutic responses...
2016: PloS One
https://www.readbyqxmd.com/read/27956264/2016-annual-report-of-the-society-of-thoracic-surgeons-american-college-of-cardiology-transcatheter-valve-therapy-registry
#18
Frederick L Grover, Sreekanth Vemulapalli, John D Carroll, Fred H Edwards, Michael J Mack, Vinod H Thourani, Ralph G Brindis, David M Shahian, Carlos E Ruiz, Jeffrey P Jacobs, George Hanzel, Joseph E Bavaria, E Murat Tuzcu, Eric D Peterson, Susan Fitzgerald, Matina Kourtis, Joan Michaels, Barbara Christensen, William F Seward, Kathleen Hewitt, David R Holmes
BACKGROUND: The STS/ACC Transcatheter Valve Therapy (TVT) Registry captures all procedures with Food and Drug Administration (FDA) approved transcatheter valve devices performed in the United States and is mandated as a condition of reimbursement by a Centers for Medicaid and Medicare Services (CMS) OBJECTIVES: This annual report focuses on patient characteristics, trends, and outcomes of transcatheter aortic and mitral valve catheter-based valve procedures in the United States. METHODS: Data for all patients receiving commercially approved devices from 2012 through December 31, 2015 are entered in the TVT Registry...
December 2, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27955994/2016-annual-report-of-the-society-of-thoracic-surgeons-american-college-of-cardiology-transcatheter-valve-therapy-registry
#19
Frederick L Grover, Sreekanth Vemulapalli, John D Carroll, Fred H Edwards, Michael J Mack, Vinod H Thourani, Ralph G Brindis, David M Shahian, Carlos E Ruiz, Jeffrey P Jacobs, George Hanzel, Joseph E Bavaria, E Murat Tuzcu, Eric D Peterson, Susan Fitzgerald, Matina Kourtis, Joan Michaels, Barbara Christensen, William F Seward, Kathleen Hewitt, David R Holmes
BACKGROUND: The STS/ACC Transcatheter Valve Therapy (TVT) Registry captures all procedures with Food and Drug Administration (FDA) approved transcatheter valve devices performed in the United States and is mandated as a condition of reimbursement by a Centers for Medicaid and Medicare Services (CMS) OBJECTIVES: This annual report focuses on patient characteristics, trends, and outcomes of transcatheter aortic and mitral valve catheter-based valve procedures in the United States. METHODS: Data for all patients receiving commercially approved devices from 2012 through December 31, 2015 are entered in the TVT Registry...
December 3, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27928594/pulmonary-hypertension-in-rheumatic-mitral-stenosis-revisited
#20
L Pourafkari, S Ghaffari, M Ahmadi, A Tajlil, N Aslanabadi, N D Nader
BACKGROUND: In patients with mitral stenosis (MS), pulmonary hypertension (PH) is a significant contributor to the associated morbidity. We aimed to study factors associated with the presence of significant PH (sPH) and whether incorporating body surface area (BSA) in the mitral valve area (MVA) would improve the predictive value of the latter. METHODS: The medical records of 558 patients with severe MS undergoing percutaneous balloon mitral commissurotomy were evaluated over a period of 8 years...
December 7, 2016: Herz
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