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Mitral regurgitation

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https://www.readbyqxmd.com/read/29244156/percutaneous-increase-of-mitral-leaflet-coaptation-length-after-mitral-valve-repair-results-from-a-preclinical-study
#1
Piergiorgio Tozzi, Giuseppe Siniscalchi, Enrico Ferrari, Matthias Kirsch, Daniel Hayoz
OBJECTIVES: The failure of mitral repairs can be the result of inadequate leaflet coaptation length (CL< 8 mm at the A2-P2 level). A new annuloplasty ring conceived by the authors enables post-surgical CL increase using percutaneous balloon catheter technology. We conducted preclinical studies to assess the in vivo feasibility of the procedure and the safety of the postimplant deformable mitral ring. METHODS: The new annuloplasty ring allows the percutaneous and progressive displacement of each of the 3 anatomical regions of the posterior mitral annulus towards the anterior...
December 13, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29242005/a-case-of-successful-mitraclip-placement-in-a-patient-with-severe-mitral-regurgitation-after-failed-mitral-valve-ring-annuloplasty
#2
Mark Simpsen, Emmanuel Daon, Mark Wiley, Fernando Mujica
No abstract text is available yet for this article.
November 2, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29238368/transient-severe-mitral-regurgitation-after-paroxysmal-supraventricular-tachycardia-in-patient-with-wpw-syndrome
#3
Yun-Seok Song, Sang-Hoon Seol, Dong-Kie Kim, Ki-Hun Kim, Doo-Il Kim
No abstract text is available yet for this article.
October 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29238013/definitive-determinant-of-late-significant-tricuspid-regurgitation-after-aortic-valve-replacement
#4
Shin Yajima, Daisuke Yoshioka, Koichi Toda, Satsuki Fukushima, Shigeru Miyagawa, Yasushi Yoshikawa, Shunsuke Saito, Keitaro Domae, Takayoshi Ueno, Toru Kuratani, Yoshiki Sawa
BACKGROUND: Uncertainties remain regarding the course of existing tricuspid regurgitation (TR) after aortic valve replacement (AVR), and its long-term impact on outcome. We investigated changes in existing TR after isolated AVR for severe aortic stenosis (AS), the impact of preoperative TR on long-term outcome, and predictors of late significant TR.Methods and Results:After excluding mild mitral regurgitation and severe TR, 226 consecutive patients undergoing isolated AVR for severe AS between 2002 and 2015 were reviewed...
December 14, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29237465/mid-term-results-of-mitral-valve-repair-using-flexible-bands-versus-complete-rings-in-patients-with-degenerative-mitral-valve-disease-a-prospective-randomized-study
#5
Alexandr V Bogachev-Prokophiev, Alexandr V Afanasyev, Sergei I Zheleznev, Vladimir M Nazarov, Ravil M Sharifulin, Alexandr M Karaskov
BACKGROUND: We aimed to compare the outcomes of mitral valve repair with flexible band (FB) versus complete semirigid ring (SR) in degenerative mitral valve disease patients. METHODS: From September 2011 to 2014, 171 patients were randomized and underwent successful mitral valve repair using a SR (n = 85) or FB (n = 86). There were no significant between-group differences at baseline. RESULTS: There were no early mortalities. The mean follow up was 24...
December 13, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29236990/outcome-reporting-for-surgical-treatment-of-degenerative-mitral-valve-disease-a-systematic-review-and-critical-appraisal
#6
Anton Tomšic, Bardia Arabkhani, Jan W Schoones, Thomas J van Brakel, Johanna J M Takkenberg, Meindert Palmen, Robert J M Klautz
OBJECTIVES: Standardized outcome reporting is of critical importance for performance monitoring, improvement of existing techniques and introduction of novel technologies. Whether outcome reporting for surgical treatment of degenerative mitral valve disease complies with the guidelines has not been assessed to date. METHODS: A systematic review of PubMed, EMBASE, Web of Science and the Cochrane Library was conducted for articles published between 1 January 2009 and 7 March 2016...
December 8, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29235147/transapical-mitral-valve-in-valve-ring-implantation-with-the-edwards-sapien-3-prosthesis
#7
Javier Gualis, Rodrigo Estevez-Loureiro, David Alonso, Mario Castaño
We present the case of a high-risk patient with symptomatic severe mitral regurgitation following a surgical annuloplasty ring. An inverted aortic Edwards Sapien 3 bioprosthesis (Edwards Lifesciences, Irvine, CA) was successfully implanted through a transapical approach inside the previously implanted annuloplasty ring.
December 12, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29232301/robotic-mitral-valve-repair-the-learning-curve
#8
Avi Goodman, Marijan Koprivanac, Marta Kelava, Stephanie L Mick, A Marc Gillinov, Jeevanantham Rajeswaran, Anna Brzezinski, Eugene H Blackstone, Tomislav Mihaljevic
OBJECTIVE: Adoption of robotic mitral valve surgery has been slow, likely in part because of its perceived technical complexity and a poorly understood learning curve. We sought to correlate changes in technical performance and outcome with surgeon experience in the "learning curve" part of our series. METHODS: From 2006 to 2011, two surgeons undertook robotically assisted mitral valve repair in 458 patients (intent-to-treat); 404 procedures were completed entirely robotically (as-treated)...
December 7, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29232298/use-of-a-new-expanded-polytetrafluoroethylene-multichordal-mitral-apparatus-mitrapatch-to-repair-complex-mitral-valve-lesions
#9
Surendra K Chawla, Muralidhar Padala, W Randolph Chitwood, Robert W M Frater
OBJECTIVE: We report a new expanded polytetrafluoroethylene multichordal mitral apparatus (MitraPatch) to simplify mitral repairs involving multiple cusps and sought to describe the surgical technique and demonstrate the efficacy of the device. METHODS: MitraPatch was laser cut from a single sheet of expanded polytetrafluoroethylene and mounted on a custom-designed handle. Surgical technique to deploy the apparatus on the native mitral valve was developed in ex vivo porcine hearts...
November 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29232249/clinical-trials-in-valvular-surgery-a-2018-update
#10
Bobby Yanagawa, Amine Mazine, Derrick Y Tam, Subodh Verma
PURPOSE OF REVIEW: There is a growing emphasis on the conduct of large-scale, multicenter randomized controlled trials (RCTs) to guide decision-making in cardiac surgery. Here we review recent landmark RCTs in cardiac valvular surgery. RECENT FINDINGS: RCTs are the gold-standard level of data in medicine. However, there are unique challenges of conducting large-scale surgical trials including funding, blinding, generalizability, nonstandardization of the surgical technique, crossover, among others...
December 11, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29230261/early-experience-with-open-heart-surgery-in-a-pioneer-private-hospital-in-west-africa-the-biket-medical-centre-experience
#11
Uvie Ufuoma Onakpoya, Adebisi David Adenle, Anthony Taiwo Adenekan
Introduction: More than forty years after the first open heart surgery in Nigeria, all open heart surgeries were carried out in government-owned hospitals before the introduction of such surgeries in 2013 at Biket Medical Centre, a privately owned hospital in Osogbo, South-western Nigeria. The aim of this paper is to review our initial experience with open heart surgery in this private hospital. Methods: All patients who underwent open heart surgery between August 2013 and January 2014 were included in this prospective study...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29226380/acute-severe-mitral-regurgitation-after-blunt-chest-trauma
#12
Petar Saric, Benjamin D Ravaee, Toral R Patel, Brian D Hoit
Myocardial contusion and aortic injury are well-known cardiac complications of blunt chest trauma, but valvular injury is rare. Traumatic valve injuries most commonly involve the aortic valve, with isolated mitral valve injury being quite rare. We report a case of acute severe mitral regurgitation due to ruptured chordae tendineae requiring surgical repair following a motor vehicle accident.
December 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/29225276/mitral-regurgitation-and-heart-failure-as-the-first-presentation-in-a-patient-with-features-of-two-connective-tissue-disorders-a-rare-combination-of-mucopolysaccharidosis-and-osteogenesis-imperfecta
#13
Yasuhiro Hamatani, Junko Nakashima, Keiko Ohta-Ogo, Makoto Amaki, Masashi Koga, Daisetsu Aoyama, Kyohei Marume, Kenichiro Sawada, Yasuteru Nakashima, Atsushi Shibata, Atsushi Okada, Hiroyuki Takahama, Takuya Hasegawa, Yasuo Sugano, Hideaki Kanzaki, Yoshihiko Ikeda, Satoshi Yasuda, Hatsue Ishibashi-Ueda, Toshihisa Anzai
Connective tissue disorders sometimes involve cardiovascular systems. This report describes the case of a middle-aged man with mitral regurgitation and heart failure. He had distinctive features of mucopolysaccharidosis (MPS) type III, but no gene mutations that were known to be associated with MPS. Meanwhile, he had a COL1A2 gene mutation that is associated with osteogenesis imperfecta (OI), and had some features that were compatible with OI. The patient might have had a rare connective tissue disorder with the characteristics of MPS type III and OI, which was initially detected as a result of the cardiovascular manifestations...
December 8, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29225261/a-case-of-isolated-left-atrial-infective-mural-endocarditis
#14
Saki Hosokawa, Hideki Okayama, Go Hiasa, Go Kawamura, Tatsuya Shigematsu, Tatsunori Takahashi, Yoshitaka Kawada, Tadakatsu Yamada, Hiroshi Matsuoka, Yukio Kazatani
A 52-year-old man presented with a fever and malaise. Transthoracic echocardiogram was performed because of a holosystolic murmur, which showed mitral valve prolapse and a regurgitation jet toward the posterior wall of the left atrium. There was no apparent vegetation at any valves. Blood cultures were positive for Streptococcus mitis/oralis. Transesophageal echocardiogram revealed vegetation only at the posterior wall of the left atrium exposed to the mitral regurgitant jet. We diagnosed this condition as infective mural endocarditis...
December 8, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29224269/-surgical-treatment-and-early-mid-follow-up-results-of-complete-atrioventricular-septal
#15
H J Cui, J Zhuang, J M Chen, J Z Cen, G Xu, S S Wen
Objective: To discuss the surgical treatment and early-mid follow-up results of complete atrioventricular septal defect (CAVSD). Methods: The clinic data of 235 cases of CAVSD underwent surgical treatment at Department of Cardiac Surgery, Guangdong General Hospital from June 2009 to June 2016 was analyzed retrospectively (104 male and 131 female patients). The patients were aged 18 days to 58 years (mid age 8.9 months) at surgery, and 2 cases of newborns (0.9%), 24 cases of 1 to 3 months (10.2%), 56 cases of 4 to 6 months (23...
December 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29224215/deleterious-variants-in-dchs1-are-prevalent-in-sporadic-cases-of-mitral-valve-prolapse
#16
Alisson Clemenceau, Jean-Christophe Bérubé, Paméla Bélanger, Nathalie Gaudreault, Maxime Lamontagne, Oumhani Toubal, Marie-Annick Clavel, Romain Capoulade, Patrick Mathieu, Philippe Pibarot, Yohan Bosse
BACKGROUND: A recent study identified DCHS1 as a causal gene for mitral valve prolapse. The goal of this study is to investigate the presence and frequency of known and novel variants in this gene in 100 asymptomatic patients with moderate to severe organic mitral regurgitation. METHODS: DNA sequencing assays were developed for two previously identified functional missense variants, namely p.R2330C and p.R2513H, and all 21 exons of DCHS1. Pathogenicity of variants was evaluated in silico...
December 10, 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/29223748/is-tricuspid-annuloplasty-increasing-surgical-mortality-and-morbidity-during-mitral-valve-replacement-a-single-centre-experience
#17
Constance Verdonk, Arthur Darmon, Claire Cimadevilla, Laurent Lepage, Richard Raffoul, Patrick Nataf, Alec Vahanian, David Messika-Zeitoun
BACKGROUND: Performance of tricuspid annuloplasty (TA) in patients undergoing mitral valve surgery is recommended based on the degree of tricuspid regurgitation and tricuspid annulus size, but is often underused. AIM: To evaluate the impact of combined TA on in-hospital outcome in patients undergoing mitral valve replacement (MVR). METHODS: We selected all consecutive patients who underwent MVR for native valve disease. Clinical, echocardiographic and in-hospital complications were obtained from chart review...
December 6, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29223427/late-outcome-of-percutaneous-mitral-commissurotomy-randomized-comparison-of-inoue-versus-double-balloon-technique
#18
Sahmin Lee, Duk-Hyun Kang, Dae-Hee Kim, Jong-Min Song, Jae-Kwan Song, Seong-Wook Park, Seung-Jung Park
BACKGROUND: Late prognosis after successful percutaneous mitral commissurotomy (PMC) is unclear. We compared late results of PMC using Inoue versus double-balloon techniques up to 25 years in a randomized trial. METHODS: Between 1989 and 1995, 302 patients (77 men, 41 ± 11 years) with severe mitral stenosis were randomly assigned to undergo PMC using Inoue (n = 152; group I) or double-balloon technique (n = 150; group D). The end points were the composite events of death, mitral surgery, repeat PMC, or deterioration of New York Heart Association (NYHA) class ≥3...
December 2017: American Heart Journal
https://www.readbyqxmd.com/read/29222864/effects-of-cardiac-resynchronization-therapy-after-inferior-myocardial-infarction-on-secondary-mitral-regurgitation-and-mitral-valve-geometry
#19
Christos G Mihos, Evin Yucel, Romain Capoulade, Mary P Orencole, Gaurav A Upadhyay, Orlando Santana, Jagmeet P Singh, Michael H Picard
BACKGROUND: The effects of cardiac resynchronization therapy (CRT) on secondary mitral regurgitation (MR), and mitral valve (MV) and left ventricular (LV) geometry, in patients with prior inferior myocardial infarction is not clearly defined. We assessed these outcomes utilizing 2-dimensional echocardiography, and analyzed echocardiographic geometric variables that may correlate with follow-up MR severity. METHODS: Between 2009 and 2012, 229 CRT were implanted. Twenty-two had prior inferior myocardial infarction, ≥ mild MR at baseline, and serial echocardiography...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29221742/early-experience-with-robotic-mitral-valve-repair-with-intra-aortic-occlusion
#20
Risto Kesävuori, Peter Raivio, Janne J Jokinen, Antero Sahlman, Kari Teittinen, Antti Vento
OBJECTIVE: To report the learning curve and early results of robotic mitral valve repairs in comparison with propensity score-matched sternotomy controls after the adoption of a robotic mitral valve surgery program in a university teaching hospital. METHODS: A total of 142 patients underwent robotic mitral valve repair due to degenerative mitral regurgitation between May 2011 and December 2015. Control patients operated on via the conventional sternotomy approach were selected by the use of propensity score analysis resulting in 2 well-matched study groups...
December 5, 2017: Journal of Thoracic and Cardiovascular Surgery
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