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https://www.readbyqxmd.com/read/29774982/transcatheter-mitral-valve-implantation-in-rigid-mitral-annuloplasty-rings-potential-differences-between-complete-and-incomplete-rings
#1
Daisuke Hachinohe, Azeem Latib, Matteo Montorfano, Antonio Colombo
Transcatheter mitral valve implantation (TMVI) has been performed in high-risk and inoperable patients for degenerated mitral bioprostheses (TMVIinV) and failed annuloplasty rings (TMVIinR). TMVIinR is more challenging compared to TMVIinV because of the differences in dimensions, shapes, and contours between rings and valves. In this report, we present two clinical cases of TMVIinR that were treated by trans-septal implantation of a balloon-expandable prosthesis. In TMVI cases with an incomplete ring, the ring will be stretched out toward its anterior and commissural side, and the open side of the ring will increase in width...
May 18, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29774187/multimodality-imaging-for-the-quantitative-assessment-of-mitral-regurgitation
#2
REVIEW
Pei G Chew, Katrina Bounford, Sven Plein, Dominik Schlosshan, John P Greenwood
The natural history of mitral regurgitation (MR) results in significant morbidity and mortality. Innovations in non-invasive imaging have provided new insights into the pathophysiology and quantification of MR, in addition to early detection of left ventricular (LV) dysfunction and prognostic assessment in asymptomatic patients. Transthoracic (TTE) and transesophageal (TOE) echocardiography are the mainstay for diagnosis, assessment and serial surveillance. However, the advance from 2D to 3D imaging leads to improved assessment and characterization of mitral valve (MV) disease...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29773412/athlete-s-heart-is-the-morganroth-hypothesis-obsolete
#3
Mark J Haykowsky, T Jake Samuel, Michael D Nelson, Andre La Gerche
In 1975, Morganroth and colleagues reported that the increased left ventricular (LV) mass in highly trained endurance athletes versus nonathletes was primarily due to increased end-diastolic volume while the increased LV mass in resistance trained athletes was solely due to an increased LV wall thickness. Based on the divergent remodelling patterns observed, Morganroth and colleagues hypothesised that the increased "volume" load during endurance exercise may be similar to that which occurs in patients with mitral or aortic regurgitation while the "pressure" load associated with performing a Valsalva manoeuvre (VM) during resistance exercise may mimic the stress imposed on the heart by systemic hypertension or aortic stenosis...
May 1, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29771478/the-reverse-remodeling-response-to-sacubitril-valsartan-therapy-in-heart-failure-with-reduced-ejection-fraction
#4
Pieter Martens, Hanne Beliën, Matthias Dupont, Pieter Vandervoort, Wilfried Mullens
BACKGROUND: Major classes of medical therapy for heart failure with reduced ejection fraction (HFrEF) induce reverse remodeling. The revere remodeling response to sacubitril/valsartan remains unstudied. METHODS: We performed a single-center, prospective assessor-blinded study to determine the reverse remodeling response of sacubitril/valsartan-therapy in HFrEF-patients with a class I-indication (New York heart Association [NYHA]-class II-IV, Left ventricular ejection fraction [LVEF]<35%, optimal dose with Renin-Angiotensin-System-Blocker [RAS-blocker])...
May 17, 2018: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29771343/do-surgical-modifications-at-the-annular-level-during-the-ross-procedure-negatively-influence-the-structural-and-functional-durability-of-the-autograft
#5
Anja Lögers, Barbara Rosser, Burkhardt Seifert, Oliver Kretschmar, Michael Hübler, René Prêtre, Lotfi Ben Mime
OBJECTIVES: Do surgical modifications at the annular level (e.g. the modified Ross-Konno procedure or reduction plasty) influence the structure and function of the Ross autograft at the mid-term follow-up? METHODS: From June 2001 to July 2009, 49 patients (37 men and 12 women), mean age 10.5 ± 5.7 years (range 2 weeks to 17.8 years), underwent Ross operations. Twenty-one patients underwent additional aortic annulus reduction plasty and 9 patients a modified Ross-Konno procedure...
May 15, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29770888/mitral-valve-interventions-in-structural-heart-disease
#6
REVIEW
Matteo Saccocci, Maurizio Taramasso, Francesco Maisano
PURPOSE OF REVIEW: Analyze the current state of the art and the future perspectives of mitral interventions in clinical setting. RECENT FINDINGS: A systematic and critical review of the new mitral percutaneous therapies and imaging technologies is the basis to adopt the right treatment for each patient according to specific valve dysfunction and clinical presentation, waiting for definitive guidelines. While surgical mitral repair will remain the gold standard for low-risk healthy patients with degenerative mitral regurgitation (DMR), transcatheter mitral valve repair is becoming first line therapy in high risk patients with functional mitral regurgitation (FMR)...
May 17, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29770227/severe-oesophageal-constriction-due-to-an-aberrant-right-subclavian-artery-with-kommerell-s-diverticulum-in-a-cat
#7
Ryohei Suzuki, Yohei Mochizuki, Hiroki Yoshimatsu, Ayaka Niina, Takahiro Teshima, Hirotaka Matsumoto, Hidekazu Koyama
Case summary: A 6-month-old female cat with a history of chronic regurgitation presented with weight loss. CT angiography (CTA) showed severe constriction of the oesophagus due to an aberrant right subclavian artery and Kommerell's diverticulum. The cat was surgically treated and remained clinically normal. More than 1 year after surgery, the general condition of the cat was stable and body weight had increased. Relevance and novel information: This case report describes the clinical findings and surgical management of a cat diagnosed with severe oesophageal constriction caused by an aberrant right subclavian artery with Kommerell's diverticulum (markedly dilated origin of the aberrant right subclavian artery), which are rare vascular anomalies in veterinary medicine and specifically in cats...
January 2018: JFMS Open Reports
https://www.readbyqxmd.com/read/29769510/surgical-management-of-a-critical-ischemic-mitral-regurgitation-patient
#8
S A Sunny, S Moinuddin, A B Adhikary, M A Hossain
Functional ischemic mitral regurgitation is strongly associated with poor outcomes in patient with coronary artery disease. The best management for mitral regurgitation at the time of coronary revascularization remains controversial. We report, a case of 58 years-old men admitted to GKNM hospital, Coimbatore, Tamil Nadu, India with chest pain and respiratory distress for last 6 hours during my fellowship training in that hospital. ECG showed acute antero-septal MI. The transthoracic echocardiogram revealed severe left ventricular dysfunction with moderate mitral regurgitation...
April 2018: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29768659/influence-of-pregnancy-on-cardiac-function-and-hemodynamics-in-women-with-ebstein-s-anomaly
#9
Miki Kanoh, Kei Inai, Tokuko Shinohara, Eriko Shimada, Mikiko Shimizu, Hirofumi Tomimatsu, Masaki Ogawa, Toshio Nakanishi
INTRODUCTION: We examined the perinatal outcomes and right ventricular function before pregnancy, during pregnancy, and after delivery in women with Ebstein's anomaly. MATERIAL AND METHODS: We retrospectively investigated the clinical course and mode of delivery and monitored hemodynamic parameters throughout pregnancy in 17 women with Ebstein's anomaly, who delivered at our institution during the period of 1995-2015. RESULTS: Eight women, including nine pregnancies, underwent elective cesarean section, and nine women, including 14 pregnancies, underwent vaginal delivery...
May 16, 2018: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29764687/intraoperative-aortic-root-pressure-study-for-quantitative-assessment-of-aortic-regurgitation-during-valve-sparing-root-replacement-a-preliminary-report
#10
Yuki Ikeno, Hiroshi Tanaka, Yutaka Okita
No abstract text is available yet for this article.
April 17, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29764373/a-subclinical-high-tricuspid-regurgitation-pressure-gradient-independent-of-the-mean-pulmonary-artery-pressure-is-a-risk-factor-for-the-survival-after-living-donor-liver-transplantation
#11
Yosuke Saragai, Akinobu Takaki, Yuzo Umeda, Takashi Matsusaki, Tetsuya Yasunaka, Atsushi Oyama, Ryuji Kaku, Kazufumi Nakamura, Ryuichi Yoshida, Daisuke Nobuoka, Takashi Kuise, Kosei Takagi, Takuya Adachi, Nozomu Wada, Yasuto Takeuchi, Kazuko Koike, Fusao Ikeda, Hideki Onishi, Hidenori Shiraha, Shinichiro Nakamura, Hiroshi Morimatsu, Hiroshi Ito, Toshiyoshi Fujiwara, Takahito Yagi, Hiroyuki Okada
BACKGROUND: Portopulmonary hypertension (POPH) is characterized by pulmonary vasoconstriction, while hepatopulmonary syndrome (HPS) is characterized by vasodilation. Definite POPH is a risk factor for the survival after orthotopic liver transplantation (OLT), as the congestive pressure affects the grafted liver, while subclinical pulmonary hypertension (PH) has been acknowledged as a non-risk factor for deceased donor OLT. Given that PH measurement requires cardiac catheterization, the tricuspid regurgitation pressure gradient (TRPG) measured by echocardiography is used to screen for PH and congestive pressure to the liver...
May 15, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29763366/right-ventricle-performances-with-echocardiography-and-99m-tc-myocardial-perfusion-imaging-in-pulmonary-arterial-hypertension-patients
#12
Jie Liu, Lei Fei, Guang-Qing Huang, Xiao-Ke Shang, Mei Liu, Zhi-Jun Pei, Yong-Xue Zhang
Right heart catheterization is commonly used to measure right ventricle hemodynamic parameters and is the gold standard for pulmonary arterial hypertension diagnosis; however, it is not suitable for patients' long-term follow-up. Non-invasive echocardiography and nuclear medicine have been applied to measure right ventricle anatomy and function, but the guidelines for the usefulness of clinical parameters remain to be established. The goal of this study is to identify reliable clinical parameters of right ventricle function in pulmonary arterial hypertension patients and analyze the relationship of these clinical parameters with the disease severity of pulmonary arterial hypertension...
May 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29762934/rescue-tavi-for-aortic-regurgitation-after-left-ventricular-assist-device-implantation-following-preoperative-impella%C3%A2-support
#13
Florian E M Herrmann, Petra Wellmann, Vera von Dossow, Steffen Massberg, Christian Hagl, René Schramm, Maximilian Pichlmaier
A patient presented with a decompensated cardiomyopathy requiring invasive hemodynamic support with an Impella® heart pump. Extracorporeal life support (ECLS) became necessary during the further course and the patient was bridged to left ventricular assist device (LVAD) implantation. Postoperatively, the patient did not improve as expected due to new aortic regurgitation (AR) that was most likely caused by the previously placed Impella. A SAPIEN 3 transcatheter aortic valve was implanted as a bail-out strategy; an additional valve-in-valve rescue was required due to paravalvular regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762933/ross-procedure-following-a-dislodged-transcatheter-aortic-valve-replacement
#14
Samuel R Schnittman, Aaron J Weiss, Robin Varghese, Paul Stelzer
A 36-year-old pregnant woman with a history of rheumatic heart disease and prior aortic valve replacement and mitral valve repair presented to an outside hospital with severe aortic stenosis. The patient had a cardiac arrest upon labor induction and underwent a transcatheter aortic valve replacement (TAVR), which dislodged two days later. Five months later, the patient underwent removal of the dislodged TAVR and a Ross procedure at the authors' institution. The patient was stable upon discharge, with minimal aortic and pulmonary regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762931/mitraclip-technique-five-years-after-alfieri-stitch-mitral-valve-repair
#15
Ivaylo R Tonchev, Anna Turyan, Ronen Beeri, Mony Shuvy
The case is described of a successful MitraClip procedure performed on an 88-year-old patient with severe mitral regurgitation (MR), five years after she had undergone mitral valve repair using the Alfieri surgical procedure. It is suggested that the MitraClip procedure is an option in patients with severe MR persisting after the Alfieri procedure. Video 1: Transesophageal echocardiography before the MitraClip procedure. Severe mitral regurgitation with preserved left ventricular systolic function. The main regurgitant jet originates from the medial commissure...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762930/cusp-tear-of-trifecta%C3%A2-aortic-bioprosthesis-resulting-in-acute-heart-failure
#16
Anne-Kristin Schaefer, Alfred Kocher, Günther Laufer, Dominik Wiedemann
Herein is presented the case of an 83-year-old male patient in cardiogenic shock with acute aortic regurgitation that occurred six years after aortic valve replacement (AVR) with a 23 mm Trifecta™ valve. Prosthesis endocarditis was initially suspected because of a floating structure attached to the aortic valve that was visible on echocardiography. Emergency redo-AVR surgery was performed, but no signs of endocarditis were found intraoperatively. Hence, cusp tearing of the implanted bioprosthesis was considered to be the reason for the severe aortic regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762929/trileaflet-mitral-valve-treated-with-the-mitraclip%C3%A2-system
#17
Miguel Rodríguez-Santamarta, Rodrigo Estévez-Loureiro, Tomás Benito-González, Javier Gualis, Carmen Garrote, Armando Pérez de Prado, Felipe Fernández-Vázquez
A 79-year-old woman with a history of ischemic dilated cardiomyopathy, severely depressed left ventricular ejection fraction and significant mitral regurgitation (MR) was admitted to the authors´ institution for percutaneous mitral valve repair. Transesophageal echocardiography (TEE) revealed the presence of a posterior mitral cleft at the P2 level, causing a trileaflet mitral valve that contributed significantly to the regurgitant jet. The procedure was performed under general anesthesia and guided by real-time three-dimensional TEE...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762924/early-improvement-in-mitral-regurgitation-after-cardiac-resynchronization-therapy-in-cardiomyopathy-patients
#18
Hakimeh Sadeghian, Masoumeh Lotfi-Tokaldany, Mahdi Montazeri, Ali Kazemi Saeed, Mohammad Sahebjam, Akram Sardari, Gita Ejmalian
BACKGROUND: The study aim was to investigate factors affecting the improvement of mitral regurgitation (MR) severity within 48 hours after cardiac resynchronization therapy (CRT) in patients with cardiomyopathy. METHODS: Sixty-nine cardiomyopathy patients (48 males, 21 females; mean age 59.12 ± 9.66 years) in NYHA functional class ≥III, with left ventricular ejection fraction (LVEF) ≤35%, and QRS duration >120 ms, with MR ≥moderate, were included in the study...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762923/intraoperative-transesophageal-echocardiography-for-surgical-repair-of-degenerative-mitral-regurgitation
#19
Calogera Pisano, Claudia Calia, Alessandro Ricasoli, Oreste Fabio Triolo, Vincenzo Argano
BACKGROUND: Segmental analysis of diseased mitral valves is important to predict a successful surgical valve repair. An assessment was made of the comparative accuracy of intraoperative three-dimensional (3D) and two-dimensional (2D) transesophageal echocardiography (TEE) in the evaluation of mitral valve lesions when compared with intraoperative surgical segmental analysis. METHODS: A total of 42 consecutive patients (12 females, 30 males; mean age 70.5 ± 14 years) with severe mitral valve regurgitation due to degenerative disease and who underwent mitral valve repair was enrolled in the study...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762918/impact-of-heart-rate-on-flow-measurements-in-aortic-regurgitation
#20
Mats Lidén, Maciej Wodecki, Per Thunberg, Peter Rask
BACKGROUND: Flow measurements using cardiac magnetic resonance imaging (CMRI) enable quantification of the stroke volume, regurgitant volume (RV) and regurgitant fraction (RF) in patients with aortic regurgitation (AR). These variables are used to assess the severity of the valve disease and for the timing of surgery. The aim of the study was to investigate the impact of an increased heart rate on measurement of the RV and RF in patients with AR. METHODS: Among 13 patients with known moderate or severe AR, regurgitant flow measurements, using phase-contrast cine magnetic resonance imaging, were obtained in the ascending aorta...
September 2017: Journal of Heart Valve Disease
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