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Mitral valve replacement

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https://www.readbyqxmd.com/read/28813234/cardiac-mr-strain-a-noninvasive-biomarker-of-fibrofatty-remodeling-of-the-left-atrial-myocardium
#1
Adrian T Huber, Jérôme Lamy, Amer Rahhal, Morgane Evin, Fabrice Atassi, Carine Defrance, Guillaume Lebreton, Karine Clément, Myriam Berthet, Richard Isnard, Pascal Leprince, Philippe Cluzel, Stéphane N Hatem, Nadjia Kachenoura, Alban Redheuil
Purpose To determine whether left atrial (LA) strain quantification with cardiac magnetic resonance (MR) imaging feature tracking is associated with the severity of LA fibrofatty myocardial remodeling at histologic analysis. Materials and Methods This prospective case-control study was approved by the institutional review board. LA strain was evaluated with cardiac MR feature tracking between January 2014 and March 2015 in 13 consecutive patients (mean age, 61 years ± 19; nine male) with mitral regurgitation in the 24 hours before mitral valve surgery and 13 age- and sex-matched healthy control subjects...
August 16, 2017: Radiology
https://www.readbyqxmd.com/read/28806175/point-of-care-ultrasound-facilitated-detection-of-femoral-occlusive-septic-emboli-during-mitral-valve-surgery-a-case-report
#2
Melissa L Bellomy, Susan Eagle, Mias Pretorius, Ben R Barton, Yafen Liang
Acute lower extremity ischemia from septic emboli is a surgical emergency. Timely diagnosis and management are critical to improve patient outcome. However, traditional diagnostic modalities such as intraoperative angiogram are time-consuming, require special equipment and personnel, and introduce contrast exposure for critically ill patients. There are limited reports of utilization of point-of-care ultrasound to detect peripheral septic emboli. We present a case where femoral occlusive septic emboli were identified by point-of-care ultrasound after mitral valve replacement...
August 10, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28805039/unnatural-milieu-thrombus-after-transcatheter-mitral-valve-replacement
#3
EDITORIAL
Jaffar M Khan, Robert J Lederman
What the article teaches Transcatheter heart valve thrombosis in the mitral position causes increased valve gradients, valve dysfunction, and symptoms, and may be associated with lack of therapeutic anticoagulation. How it will impact practice Anticoagulation with a vitamin K antagonist should be considered in all patients undergoing transcatheter mitral valve replacement. What new research/study would help answer the question posed Efficacy, optimal duration, and safety of anticoagulation therapy, balancing reduced thrombosis against increased bleeding risk, needs to be assessed in larger cohort studies and prospective trials...
August 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28801688/-tricuspid-valve-regurgitation-indications-and-operative-techniques
#4
R Lange, N Piazza, T Günther
Functional tricuspid valve (TV) regurgitation secondary to left heart disease (e.g. mitral insufficiency and stenosis) is observed in 75% of the patients with TV regurgitation and is thus the most common etiology; therefore, the majority of patients who require TV surgery, undergo concomitant mitral and/or aortic valve surgery. Uncorrected moderate and severe TV regurgitation may persist or even worsen after mitral valve surgery, leading to progressive heart failure and death. Patients with moderate to severe TV regurgitation show a 3-year survival rate of 40%...
August 11, 2017: Herz
https://www.readbyqxmd.com/read/28799521/transcatheter-mitral-valve-replacement-long-term-outcomes-of-first-in-man-experience-with-an-apically-tethered-device-a-case-series-from-a-single-centre
#5
Alison Duncan, Anan Daqa, James Yeh, Simon Davies, Anselm Uebing, Cesare Quarto, Neil Moat
AIMS: Transcatheter mitral valve replacement (TMVR) is a novel technique for treating mitral regurgitation. We report 18-month/2-year outcomes of the 5 first-in-man patients undergoing chronic TMVR with the Tendyne device. METHODS AND RESULTS: Five patients (STS score 14%-23%) underwent TMVR using a Tendyne system under compassionate use at a single centre. 1 patient (who was noncompliant with anti-coagulation) died 9 months after TMVR following a cerebrovascular accident...
August 13, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28797608/repair-strategies-based-on-pathological-characteristics-of-the-rheumatic-mitral-valve-in-chinese-patients
#6
Luo Tiange, Meng Xu
BACKGROUND: We aimed to clarify the pathological characteristics of rheumatic mitral valve disease in Chinese individuals, as well as to determine the appropriate rheumatic mitral valve repair strategy according to such characteristics. METHODS: We obtained detailed statistics regarding the pathological characteristics of patients who underwent mitral valve repair or replacement for rheumatic disease during the past year at our centre. The outcomes of different repair techniques were compared...
June 28, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28792140/effect-of-patient-prosthesis-mismatch-in-aortic-position-on-late-onset-tricuspid-regurgitation-and-clinical-outcomes-after-double-valve-replacement
#7
Seung Hyun Lee, Young Nam Youn, Byung Chul Chang, Hyun Chel Joo, Sak Lee, Kyung Jong Yoo
PURPOSE: Significant late-onset tricuspid regurgitation (TR) is unfortunately common after double valve replacement (DVR); however, its underlying factors remain undefined. We evaluated the effect of aortic patient-prosthesis mismatch (PPM) on late-onset TR and clinical outcomes after DVR. MATERIALS AND METHODS: Of the 2392 consecutive patients who underwent aortic valve replacement between January 1990 and May 2014 at our institution, we retrospectively studied 462 patients who underwent DVR (excluding concomitant tricuspid valvular annuloplasty or replacement)...
September 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28790250/-usefulness-of-balloon-aortic-valvuloplasty-for-determining-the-operative-procedure-in-a-patient-with-severe-aortic-stenosis-complicated-with-secondary-mitral-regurgitation-report-of-a-case
#8
Kenichi Kamiya, Akira Furuta, Ryoi Okano, Haruki Tanaka, Masaomi Fukusumi, Tadamasa Miyauchi, Takeo Tedoriya
A 59-year-old man on chronic hemodialysis presented with severe aortic stenosis(AS) and moderate mitral regurgitation (MR). Although aortic valve replacement was scheduled, his status deteriorated into New York Heart Association(NYHA) class III heart failure due to the exacerbation of AS and concomitant MR. Double valve replacement was considered to be too high risk for the patient, and balloon aortic valvuloplasty(BAV) was initially performed. As a result, the mean pressure gradient of the aortic valve decreased from 65 to 28 mmHg and the mean pulmonary pressure also from 52 to 33 mmHg...
August 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28789610/management-of-refractory-bleeding-post-cardiopulmonary-bypass-in-an-acute-heparin-induced-thrombocytopenia-type-ii-renal-failure-patient-who-underwent-urgent-cardiac-surgery-with-bivalirudin-angiox-%C3%A2-anticoagulation
#9
Kimberly Hassen, Maria R Maccaroni, Haytham Sabry, Smitangshu Mukherjee, Shankari Serumadar, Inderpaul Birdi
Acute heparin-induced thrombocytopenia (HIT) patients present myriad anticoagulation management challenges in clinical settings where unfractionated heparin (UFH) is the traditional drug of choice. UFH use in cardiac surgery is a known entity that has been subject to rigorous research. Research has, thus, led to its unparalleled use and the development of well-established protocols for cardiac surgery. In comparison to UFH, bivalirudin use for acute HIT patients requiring urgent cardiac surgery with cardiopulmonary bypass (CPB) is still in its infancy...
August 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28781298/primary-cardiac-leiomyosarcoma-a-27-month-survival-with-surgery-and-chemotherapy
#10
Koji Nakashima, Haruhiko Inatsu, Kazuo Kitamura
The patient was a 39-year-old man hospitalized due to the presence of a cardiac mass and heart failure. Emergency tumor resection and mitral valve replacement were performed. The pathological findings of the tumor led to a diagnosis of cardiac leiomyosarcoma. After the operation, multiple metastases were found. The patient underwent three courses of chemotherapies: adriamycin, ifosfamide, dacarbazine, and mesna (MAID therapy), gemcitabine plus docetaxel, and sunitinib. During MAID therapy, the patient underwent resection of gastrointestinal metastases twice due to gastrointestinal hemorrhaging...
August 1, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28780580/net-atrioventricular-compliance-is-an-independent-predictor-of-cardiovascular-death-in-mitral-stenosis
#11
Maria Carmo Pereira Nunes, Timothy C Tan, Sammy Elmariah, Lucas Lodi-Junqueira, Bruno Ramos Nascimento, Rodrigo do Lago, Jose Luiz Padilha da Silva, Rodrigo Citton Padilha Reis, Xin Zeng, Igor F Palacios, Judy Hung, Robert A Levine
OBJECTIVES: Rheumatic mitral stenosis (MS) is a progressive disease, and risk of death may persist despite relief of the obstruction. Net atrioventricular compliance (Cn) modulates the overall haemodynamic burden of the MS and may be useful in predicting cardiovascular death after percutaneous mitral valvuloplasty (PMV). METHODS: A total of 427 patients (mean age 50±16 years, 84% female) with severe MS undergoing PMV were enrolled. Doppler-derived Cn was estimated at baseline using a previously validated equation...
August 5, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28780032/percutaneous-management-of-mitral%C3%A2-perforation-during-transcatheter-aortic-valve-replacement
#12
Asma Bourezg, Cyril Prieur, Gérard Finet, Gilles Rioufol
No abstract text is available yet for this article.
July 27, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28776919/open-surgical-mitral-valve-replacement-with-a-transcatheter-edwards-sapien-xt-valve
#13
Tanveer Ahmad, Prakash M Ludhani, Ronen Gurvitch, John Goldblatt, James Tatoulis
No abstract text is available yet for this article.
August 4, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28762927/-experience-of-treatment-of-spontaneous-rupture-of-left-ventricular-posterior-wall-after-mitral-valve-replacement
#14
Yu A Schneider, M D Tsoi, G N Antipov, M V Isayan, A A Mikheev, E S Sozinova, E E Khudenkikh, V A Belov, D A Astapov
Spontaneous rupture of the left ventricular posterior wall after mitral valve replacement is a severe complication and is associated with high mortality rate. This complication was first described in 1967 by Roberts and Morrow, which describe the results of autopsy of two patients. In leading clinics around the world left ventricular wall ruptures after mitral valve replacement account for up to 20% of causes of hospital mortality. Currently there is no clear-cut strategy of treatment of this complication. In this article we present analysis of both traditional and non-traditional methods of treatment of this complication as well as own small positive and negative experience...
May 2017: Kardiologiia
https://www.readbyqxmd.com/read/28760473/transapical-mitral-valve-implantation-for-native-mitral-valve-stenosis-using-a-balloon-expandable-prosthesis
#15
Philipp Kiefer, Thilo Noack, Joerg Seeburger, Alexandro Hoyer, Axel Linke, Norman Mangner, Lukas Lehmkuhl, Friedrich Wilhelm Mohr, David Holzhey
BACKGROUND: Transcatheter mitral valve implantation (TMVI) is still in its infancy and is mainly limited to valve-in-valve or valve-in-ring implantations. We present the early experience with TMVI for severe calcified native MV stenosis. METHODS: Between January 2014 and June 2015, 6 of 11 patients screened (mean age, 77.4 ± 6.3 years; 66% men) with severe native mitral valve (MV) stenosis (mean gradient [Pmean], 11.1 ± 2.1 mm Hg; mean effective orifice area [EOA], 0...
July 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28760467/resident-autonomy-in-the-operating-room-expectations-versus-reality
#16
Shari L Meyerson, Joel M Sternbach, Joseph B Zwischenberger, Edward M Bender
BACKGROUND: There is concern about graduating thoracic trainees' independent operative skills due to limited autonomy in training. This study compared faculty and trainee expected levels of autonomy with intraoperative measurements of autonomy for common cardiothoracic operations. METHODS: Participants underwent frame-of-reference training on the 4-point Zwisch scale of operative autonomy (show and tell → active help → passive help → supervision only) and evaluated autonomy in actual cases using the Zwisch Me!! mobile application...
July 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28760466/outcomes-of-early-mitral-valve-reoperation-in-the-medicare-population
#17
Kathleen Kwedar, Christian McNeely, Alan Zajarias, Steve Markwell, Christina M Vassileva
BACKGROUND: Surgical series on mitral valve reoperation are limited by small numbers and lack of national representation. Large-scale outcomes of reoperation for mitral valve surgery remain uncertain. METHODS: This is a descriptive analysis of 1,627 Medicare beneficiaries who underwent mitral valve reoperation within a 3-year follow-up period after an initial mitral operation (repair or replacement) that took place between 2000 and 2006. The primary outcomes were hospital mortality and long-term survival...
July 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28757798/mitral-valve-replacement-current-and-future-perspectives
#18
REVIEW
Johan van der Merwe, Filip Casselman
The favorable outcomes achieved with modern mitral valve repair techniques redefined the role of mitral valve replacement. Various international databases report a significant decrease in replacement procedures performed compared with repairs, and contemporary guidelines limit the application of surgical mitral valve replacement to pathology in which durable repair is unlikely to be achieved. The progressive paradigm shift toward endoscopic and robotic mitral valve surgery is also paralleled by rapid developments in transcatheter devices, which is progressively expanding from experimental approaches to becoming clinical reality...
2017: Open Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28756424/cavotricuspid-isthmus-dependent-flutter-or-left-sided-atrial-tachycardia
#19
Kevin Ming Wei Leong, Fernando Guerrero, Phang Boon Lim
A 52-year-old man with previous mitral valve replacement, cavotricuspid isthmus, and left-sided roof-line ablation for previous typical atrial flutter and tachycardia presented with recurrence of symptoms with an atrial tachycardia measuring 260 ms cycle length on electrocardiogram. Rhythmia electroanatomical mapping (Boston Scientific) was performed to understand the mechanism of arrhythmia and to guide ablative treatment.
August 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28751436/a-striking-image-of-spontaneous-echo-contrast-in-severe-mitral-stenosis-in-a-patient-with-good-inr-control
#20
Daniel A Jeffery, Guy Lloyd, Arjun K Ghosh
A 38 year old man was referred to our valve clinic for assessment. He had been diagnosed with untreated rheumatic mitral stenosis (MS) in 2009. He was diagnosed with atrial fibrillation in 2016 [on warfarin with good INR control]. Transthoracic echocardiography demonstrated severe MS. A large amount of spontaneous echo contrast (SEC) was noted in the severely dilated left atrium and a transoesophageal echocardiogram (TOE) was requested for further assessment of the MS (Image 1 and Videos 1-3). He was symptomatic with shortness of breath and reduced exercise tolerance consistent with NYHA class III-IV...
July 27, 2017: Echo Research and Practice
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