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mitral valve gradients

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https://www.readbyqxmd.com/read/29755074/-structural-deterioration-of-a-bovine-pericardial-valve-in-a-tricuspid-position-14-years-postoperatively-report-of-a-case
#1
Kazunori Ota, Koyu Tanaka, Naoki Asano, Shigeyoshi Gon, Masahito Saito, Kazuho Niimi, Hiromichi Inoue, Motohiko Tamura, Yuji Matsumura, Toshihiro Ohata, Hirotsugu Fukuda, Hiroshi Takano
Although nonstructural dysfunction of a bioprosthesis caused by pannus formation or native valve attachment has been well described, structural valve deterioration( SVD) caused by calcification or tear of a bioprosthesis, especially a bovine pericardial valve, is very rare in the tricuspid position. We report a case of redo tricuspid valve surgery for SVD 14 years after tricuspid valve replacement( TVR) using a Carpentier-Edwards Perimount (CEP) pericardial valve. A 71-year-old woman was referred to our hospital because of exertional dyspnea and pre-syncope...
March 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29753818/routine-papillary-muscle-realignment-and-septal-myectomy-for-obstructive-hypertrophic-cardiomyopathy
#2
Howard K Song, Jason Turner, Rebekah Macfie, Suwen Kumar, Meghan J Mannello, Danielle Smith, Castigliano Bhamidipati, Jaishankar Raman, Frederick Tibayan, Stephen B Heitner
BACKGROUND: Septal myectomy has been the mainstay of the surgical treatment of obstructive hypertrophic cardiomyopathy (HCM), however recently there is growing appreciation for associated mitral valve abnormalities that contribute to left ventricular outflow tract (LVOT) obstruction. In this study, we describe our experience with combined papillary muscle realignment (PMR) and septal myectomy for the treatment of obstructive HCM. METHODS: We identified 44 patients undergoing surgery for obstructive HCM whose anatomy was amenable to combined PMR and septal myectomy at our institution over a 20-month period...
May 10, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29743415/management-of-incomplete-initial-repair-in-the-treatment-of-degenerative-mitral-insufficiency
#3
Wenrui Ma, Wei Shi, Wei Zhang, Weihua Wu, Wei Ye, Ye Kong
We sought to present our institutional protocol to manage incomplete initial repair of degenerative mitral regurgitation and to evaluate its mid-term outcomes. Eight hundred and fifteen patients with degenerative mitral insufficiency undergoing mitral valve repair were investigated in this study. The initial repair attempt was incomplete in 48 patients, leaving a degree of residual regurgitation > mild, and an elevated transmitral gradient or systolic anterior motion (SAM). These patients were further treated with medication or mitral valve re-repair or replacement under reinstituted cardiopulmonary bypass...
May 9, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29739020/how-do-transcatheter-heart-valves-fit-in-mitral-annuloplasty-rings-and-which-combination-can-be-recommended
#4
Roya Ostovar, Ralf-Uwe Kuehnel, Michael Erb, Martin Hartrumpf, Thomas Claus, Robert Haase, Johannes M Albes
BACKGROUND:  Transcatheter heart valve (THV) as valve-in-ring is increasingly used in the mitral position. Semi-rigid rings may serve as a more appropriate scaffold for proper anchoring of a THV as they may change from their oval to a round shape thereby fitting to the implanted THV. METHODS:  One rigid and five semi-rigid rings of four manufacturers, Edwards Physio I and II, Sorin 3D Memo, Medtronic Simulus, and St. Jude Medical (SJM) Saddle and SJM Sequin, with sizes 28 to 36 mm and Edwards Sapien III THV 23, 26, and 29 mm were used...
May 8, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29701355/aortic-valve-replacement-with-perceval%C3%A2-bioprosthesis-initial-single-center-experience
#5
Diogo Rijo, Sara Simões Costa, João Pedro Monteiro, Fátima Neves, Luís Vouga, Paulo Neves, Paulo Ponce, Miguel Guerra
INTRODUCTION: Aortic valve replacement (AVR) is the gold standard for the treatment of severe or symptomatic aortic valve stenosis. Less invasive procedures have been developed as an alternative to the conventional technique of full sternotomy approach with stented prosthesis. The Perceval® aortic valve (LivaNova, Milan, Italy) is a sutureless bioprosthesis, of which several reports have shown promising results in terms of mortality, morbidity and hemodynamic performance, especially with a less invasive approach...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29699609/1-year-outcomes-of-transcatheter-mitral-valve-replacement-in-patients-with-severe-mitral-annular-calcification
#6
Mayra Guerrero, Marina Urena, Dominique Himbert, Dee Dee Wang, Mackram Eleid, Susheel Kodali, Isaac George, Tarun Chakravarty, Moses Mathur, David Holzhey, Ashish Pershad, H Kenith Fang, Daniel O'Hair, Noah Jones, Vaikom S Mahadevan, Nicolas Dumonteil, Josep Rodés-Cabau, Nicolo Piazza, Enrico Ferrari, Daniel Ciaburri, Mohammed Nejjari, Augustin DeLago, Paul Sorajja, Firas Zahr, Vivek Rajagopal, Brian Whisenant, Pinak Bipin Shah, Jan-Malte Sinning, Adam Witkowski, Helene Eltchaninoff, Danny Dvir, Bena Martin, Guilherme F Attizzani, Diego Gaia, Nagela S V Nunes, Amir-Ali Fassa, Faraz Kerendi, Gregory Pavlides, Vijay Iyer, Georges Kaddissi, Christian Witzke, James Wudel, Gregory Mishkel, Bryan Raybuck, Chi Wang, Ron Waksman, Igor Palacios, Alain Cribier, John Webb, Vinnie Bapat, Mark Reisman, Raj Makkar, Martin Leon, Charanjit Rihal, Alec Vahanian, William O'Neill, Ted Feldman
BACKGROUND: The risk of surgical mitral valve replacement in patients with severe mitral annular calcification (MAC) is high. Several patients worldwide with severe MAC have been treated successfully with transcatheter mitral valve replacement (TMVR) using balloon-expandable aortic transcatheter valves. The TMVR in MAC Global Registry is a multicenter registry that collects data on outcomes of these procedures. OBJECTIVES: The goal of this study was to evaluate 1-year outcomes in this registry...
May 1, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29655822/clinical-spectrum-and-management-of-heart-failure-in-hypertrophic-cardiomyopathy
#7
REVIEW
Barry J Maron, Ethan J Rowin, James E Udelson, Martin S Maron
Heart failure (HF), characterized by excessive exertional dyspnea, is a common complication within the broad clinical spectrum of hypertrophic cardiomyopathy (HCM). HF has become an increasingly prominent management issue with the reduction in sudden deaths due to use of implantable defibrillators in this disease. Exertional dyspnea ranges in severity from mild to severe (New York Heart Association functional classes II to IV) and not uncommonly becomes refractory to medical management, leading to progressive disability, but largely in the absence of pulmonary congestion and volume overload requiring hospitalization...
May 2018: JACC. Heart Failure
https://www.readbyqxmd.com/read/29627180/transatrial-implantation-of-a-transcatheter-heart-valve-for-severe-mitral-annular-calcification
#8
Fabien Praz, Omar K Khalique, Raymond Lee, Ramesh Veeragandham, Hyde Russell, Mayra Guerrero, Ashequl M Islam, David W Deaton, Tsuyoshi Kaneko, Susheel K Kodali, Martin B Leon, Vinayak Bapat, Hiroo Takayama, Michael A Borger, Isaac George
OBJECTIVE: To assess the outcomes of transatrial implantation of a transcatheter heart valve (THV) for the treatment of mitral valve disease with severe mitral annular calcification (MAC). METHODS: Implantation of a balloon-expandable THV was performed on cardiopulmonary bypass via left atrial exposure in patients considered at risk for left ventricular outflow tract obstruction. The anterior mitral valve leaflet was systematically resected and pledgeted sutures were placed to enhance stability and reduce paravalvular leak...
March 12, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29622987/outcome-of-transcatheter-aortic-valve-implantation-in-high-risk-patients-with-severe-aortic-stenosis
#9
Hamdy Soliman, Khlid Alrabaat, Tarek Aboalaazm, Shaimaa Mostafa, Asaad Samy
Aim: To assess outcome of TAVI in high risk patients with severe symptomatic aortic stenosis. Patients and methods: 40 patients with symptomatic severe aortic stenosis and high risk underwent TAVI with implantation of either Sapien XT valve or Core Valve and followed for 6 months. Device success, cardiovascular mortality, myocardial infarction, stroke, life-threatening bleeding and vascular complications were defined according to Valve Academic Research Consortium definitions...
December 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29602755/pathoanatomic-findings-and-treatment-during-hypertrophic-obstructive-cardiomyopathy-surgery-the-role-of-mitral-valve
#10
Giuseppe M Raffa, Giuseppe Romano, Marco Turrisi, Marco Morsolini, Giovanni Gentile, Sergio Sciacca, Alessandro Armaro, Vincenzo Stringi, Gabriella Mattiucci, Serena Magro, Fabiola Cosentino, Francesco Clemenza, Michele Pilato
BACKGROUND: To assess the role of the mitral valve apparatus (leaflets, chordae and papillary muscles, PM) in left ventricle outflow tract (LVOT) obstruction, and results of the surgical treatment for hypertrophic obstructive cardiomyopathy (HOCM). METHODS: Twenty-eight consecutive patients (58±11years, 53% female) undergoing HOCM surgery from 2007 to 2016 at our institute were retrospectively reviewed. Endpoints included the involvement of the mitral valve in LVOT obstruction, mortality, and changes in clinical and echocardiographic characteristics after HOCM surgery...
February 14, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29602220/degenerative-mitral-regurgitation-predicts-worse-outcomes-in-patients-undergoing-transcatheter-aortic-valve-replacement
#11
Bryan Kindya, Elisha Ouzan, Stamatios Lerakis, Erhan Gonen, Vasilis Babaliaros, Eren Karayel, Vinod H Thourani, Israel Gotsman, Chandan M Devireddy, Haim D Danenberg, Bradley G Leshnower, Ronen Beeri, Yi-An Ko, Dan Gilon, Hina Ahmed, Chang Liu, Chaim Lotan, Kreton Mavromatis
OBJECTIVES: To evaluate the role mitral regurgitation (MR) etiology and severity play in outcomes for patients undergoing transcatheter aortic valve replacement (TAVR). BACKGROUND: Multiple prior studies have investigated the influence of MR severity on outcomes for patients undergoing TAVR. Less has been published regarding the effects of MR etiology on outcomes, including its impact on heart failure hospitalization. METHODS: Two hundred and seventy patients undergoing TAVR at 2 hospitals were enrolled...
March 30, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29588110/serial-changes-of-transmitral-and-transtricuspid-pressure-gradients-after-simultaneous-mitral-and-tricuspid-ring-annuloplasty
#12
Hunbo Shim, Ji-Won Hwang, Dong Seop Jeong, Kiick Sung, Wook Sung Kim, Pyo Won Park
BACKGROUND: Although flexible-ring annuloplasty is more inclined to increase the transmitral gradient over time, its effect on the tricuspid annulus is unknown. This study was conducted to evaluate serial changes in mean pressure gradient (mPG) across tricuspid and mitral valves after simultaneous dual implantation of flexible bands. METHODS: Seventy-one patients (median age, 61.6 years; IQR: 50.8-69.0 years) underwent simultaneous mitral/tricuspid annuloplasties using St...
March 17, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29549506/minimally-invasive-trans-mitral-septal-myectomy-for-diffuse-type-hypertrophic-obstructive-cardiomyopathy
#13
Taichi Sakaguchi, Toshinori Totsugawa, Kentaro Tamura, Arudo Hiraoka, Genta Chikazawa, Hidenori Yoshitaka
OBJECTIVE: Despite excellent long-term results reported for a trans-aortic septal myectomy for hypertrophic obstructive cardiomyopathy (HOCM), surgery for patients with diffuse hypertrophy is very challenging. In addition, a left ventricular outflow obstruction is often aggravated by an abnormal mitral valve and subvalvular apparatus. METHODS: We performed video-assisted minimally invasive trans-mitral septal myectomy procedures in 3 patients with diffuse-type HOCM, who were highly symptomatic despite maximal medical therapy...
March 16, 2018: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29538706/determination-of-risk-factors-for-pacemaker-requirement-following-rapid-deployment-aortic-valve-replacement
#14
Parwis B Rahmanian, Kaveh Eghbalzadeh, Süreyya Kaya, Hruy Menghesha, Stephen Gerfer, Oliver J Liakopoulos, Yeong-Hong Choi, Thorsten Wahlers
OBJECTIVES: Rapid-deployment aortic valve replacement (RD-AVR) potentially reduces procedure times providing excellent haemodynamic results compared to standard tissue aortic valve replacement. However, concerns have been raised regarding higher rates of postoperative pacemaker (PPM) requirement compared to standard aortic valve replacement. In this study, we sought to determine the PPM rate and its potential risk factors in RD-AVR patients. METHODS: Between 2011 and 2017, 193 patients underwent RD-AVR...
March 12, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29534193/modified-ross-konno-procedure-in-children-subcoronary-implantation-technique-with-konno-incision-for-annular-and-subannular-hypoplasia
#15
Peter Murin, Nicodème Sinzobahamvya, Antonia Schulz, Victoria Lorenzen, Stanislav Ovroutski, Felix Berger, Joachim Photiadis, Mi-Young Cho
OBJECTIVES: The technique of subcoronary autograft implantation for the Ross procedure has shown excellent durability of aortic valve function in adults. However, its use in children with hypoplastic aortic annulus or multilevel left ventricular outflow tract obstruction (LVOTO) was traditionally precluded. We combined this technique with a Konno incision and evaluated LVOTO relief and durability of the autograft function in growing patients. METHODS: Between January 2012 and January 2017, 13 patients with severe LVOTO and hypoplastic aortic annulus underwent Ross-Konno procedure with subcoronary autograft implantation...
March 9, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29527717/outcomes-following-balloon-mitral-valvuloplasty-in-pregnant-females-with-mitral-stenosis-and-significant-sub-valve-disease-with-severe-decompensated-heart-failure
#16
Ajith Ananthakrishna Pillai, Chandramohan Ramasamy, Saranya Gousy V, Harichandrakumar Kottyath
BACKGROUND: Mitral stenosis may present with decompensated heart failure during pregnancy. Many patients do have advanced sub valve disease and present late with decompensated state. The outcomes of balloon mitral valvuloplasty (BMV) in such advanced sub valve disease with severe heart failure in pregnancy has not been specifically studied till now. METHODS: A descriptive study looking at the immediate and long-term outcomes of pregnant patients with MS who presented with severe heart failure and sub valve disease who had undergone BMV...
March 11, 2018: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29523135/post-operative-left-atrial-volume-index-is-a-predictor-of-the-occurrence-of-permanent-atrial-fibrillation-after-mitral-valve-surgery-in-patients-who-undergo-mitral-valve-surgery
#17
Min-Kyung Kang, Boyoung Joung, Chi Young Shim, In Jeong Cho, Woo-In Yang, Jeonggeun Moon, Yangsoo Jang, Namsik Chung, Byung-Chul Chang, Jong-Won Ha
BACKGROUND: Atrial fibrillation (AF) can occur even after the correction of mitral valve (MV) pathology in patients who have pre-operative sinus rhythm and undergo MV surgery. However, the factors associated with the occurrence of AF after MV surgery are still unclear. The aim of this retrospective study was to investigate the factors determining the occurrence of permanent AF after MV surgery in patients with preoperative sinus rhythm who underwent MV surgery. METHODS: Four hundred and forty-two patients (mean age 46 ± 12, 190 men) who underwent MV surgery and sinus rhythm were investigated retrospectively...
March 9, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29516004/reference-values-for-physical-stress-echocardiography-in-asymptomatic-patients-after-mitral-valve-repair
#18
Rosemarijn Jansen, Kim Urgel, Maarten J Cramer, Egidius E H L van Aarnhem, Peter P M Zwetsloot, Pieter A Doevendans, Jolanda Kluin, Steven A J Chamuleau
Background: Clinical decision-making in symptomatic patients after mitral valve (MV) repair remains challenging as echocardiographic reference values are lacking. In native MV disease intervention is recommended for mean transmitral pressure gradient (TPG) >15 mmHg or systolic pulmonary artery pressure (SPAP) >60 mmHg at peak exercise. Insight into standard stress echo parameters after MV repair may therefore aid to clinical decision-making during follow-up. Hypothesis: Stress echocardiography derived parameters in asymptomatic patients after successful MV repair differ from current guidelines for native valves...
2018: Frontiers in Surgery
https://www.readbyqxmd.com/read/29512090/predicting-functional-mitral-stenosis-after-restrictive-annuloplasty-for-ischemic-mitral-regurgitation
#19
Baotong Li, Hengchao Wu, Hansong Sun, Jianping Xu, Yunhu Song, Wei Wang, Shuiyun Wang
BACKGROUND: Although it has been realized that restrictive mitral valve annuloplasty (MVA) may result in clinically significant functional mitral stenosis (MS), it still cannot be predicted. The purpose of this study was to identify risk factors for clinically significant functional MS following restrictive MVA surgery for chronic ischemic mitral regurgitation (CIMR). METHODS: 114 patients who underwent restrictive MVA with coronary artery bypass grafting (CABG) for treatment of CIMR were retrospectively reviewed...
March 7, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29507739/normal-function-of-a-43-year-old-braunwald-cutter-heart-valve
#20
Gian Manuel Jiménez-Rodríguez, Sergio Criales-Vera, Mario Adrian Juárez-Peñaloza, Luis Alonso González-Tapia, Mariana Chaire-Hernández
We present the case of a 72-year-old woman diagnosed with rheumatic fever at the age of 6. In 1972, she was diagnosed with mitral valve insufficiency and mitral valve stenosis, then in 1974, a decision was made to perform mitral valve replacement surgery with a 32-mm Braunwald-Cutter ball cage prosthesis. An echocardiogram performed in 2014 revealed normal biventricular systolic function, mechanical prosthesis in mitral position with maximum speed of 1.9 m/s, maximum gradient of 15 mmHg, mean gradient of 6 mmHg, severe tricuspid valve insufficiency, inferior vena cava measuring 15 mm with more than 50% collapse and pulmonary artery systolic pressure of 40 mmHg...
February 2018: Oxford Medical Case Reports
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