keyword
MENU ▼
Read by QxMD icon Read
search

Aortic valve replacement

keyword
https://www.readbyqxmd.com/read/28545062/association-of-frailty-status-with-acute-kidney-injury-and-mortality-after-transcatheter-aortic-valve-replacement-a-systematic-review-and-meta-analysis
#1
Charat Thongprayoon, Wisit Cheungpasitporn, Natanong Thamcharoen, Patompong Ungprasert, Wonngarm Kittanamongkolchai, Michael A Mao, Ankit Sakhuja, Kevin L Greason, Kianoush Kashani
OBJECTIVE: Frailty is a common condition in patients with severe aortic stenosis (AS) undergoing transcatheter aortic valve replacement (TAVR). The aim of this systematic review was to assess the impact of frailty status on acute kidney injury (AKI) and mortality after TAVR. METHODS: A systematic literature search was conducted using MEDLINE, EMBASE, and Cochrane databases from the inception through November 2016. The protocol for this study is registered with PROSPERO (International Prospective Register of Systematic Reviews; no...
2017: PloS One
https://www.readbyqxmd.com/read/28544843/a-new-sign-of-severe-aortic-regurgitation-detected-through-airflow-analysis-in-mechanical-ventilation
#2
Juan C Garcia-Rubira, Maria J Cristo-Ropero, Manuel Almendro-Delia, Rafael Hidalgo-Urbano
A 72-year-old female with a previous history of aortic valve replacement by biological prosthesis was admitted with progressive heart failure. The clinical course was unfavorable, requiring inotropic support and invasive mechanical ventilation. Auto-triggering of the ventilator from cardiac origin has been previously described, and explained as a consequence of hyperdynamic circulation. In our case, the oscillatory movements due to the aortic regurgitation are transmitted to the airway. Early recognition of this condition can facilitate not only the correction this asynchrony in mechanical ventilation but also should raise the suspicion of aortic regurgitation...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544841/transcatheter-valve-in-valve-implantation-failing-tricuspid-bioprosthesis-in-a-patient-with-ebstein%C3%A2-s-anomaly
#3
Pedro A Villablanca, Aman M Shah, David F Briceno, Ali N Zaidi, Mei Chau, Mario J Garcia, David Slovut, Cynthia Taub
Transcatheter valve-in-valve (VIV) implantation has been recently proposed as an alternative to surgical reoperative aortic valve replacement in patients with a failing aortic bioprosthesis. Experience with transcatheter VIV implantation at other valve positions is very limited. Herein is reported the case of an 18-year-old man with Ebstein's anomaly and severe tricuspid valve (TV) regurgitation status after bioprosthetic valve replacement, who developed new dyspnea on exertion three years after the initial valve replacement...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544840/redo-tricuspid-valve-repair-with-leaflet-augmentation-using-the-left-atrial-wall
#4
Daisuke Endo, Kenji Kuwaki, Taira Yamamoto, Atsushi Amano
The case is reported of a 79-year-old female who received a patch augmentation of the tricuspid anterior and septal leaflets with a resected left atrial wall to address recurrent tricuspid regurgitation, including tricuspid valve tethering. The patient was admitted to the authors' hospital for chronic heart failure with paravalvular leakage after aortic valve replacement and recurrent severe tricuspid regurgitation. She had undergone two previous cardiac surgeries. Re-tricuspid repair required an augmentation of the tricuspid valve leaflets in addition to tricuspid annuloplasty...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544836/aortic-valve-replacement-with-the-labcor-tlpb-supra%C3%A2-porcine-bioprosthesis-intermediate-clinical-and-echocardiographic-outcomes
#5
Markus Schlömicher, Zulfugar Taghiyev, Yazan Al-Jabery, Peter Lukas Haldenwang, Leif Markthaler, Vadim Moustafine, Axel Maria Laczkovics, Justus Thomas Strauch, Matthias Bechtel
BACKGROUND: The Labcor TBLP Supra™ prosthesis is a second-generation tissue valve that has evolved from the Labcor TBLP™ prosthesis, first introduced in 1984. The Supra prosthesis is a triple-composite porcine valve, with no specific anticalcification treatment being used in its production other than standard tissue fixation with 0.4% glutaraldehyde. To date, more than 100,000 Supra valves have been implanted, mainly in South America. Despite this remarkably high number of implants, only marginal data exist concerning durability and safety issues...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544835/leaflet-mechanical-properties-of-carpentier-edwards-perimount-magna-pericardial-aortic-bioprostheses
#6
Heide Kuang, Yue Xuan, Michelle Lu, Aart Mookhoek, Andrew D Wisneski, Julius M Guccione, Liang Ge, Elaine E Tseng
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has recently been shown to be equivalent to surgical aortic valve replacement (SAVR) in intermediate-risk patients. As TAVR expands towards the traditionally SAVR population, TAVR versus SAVR durability becomes increasingly important. While the durability of TAVR is unknown, valve design - particularly with regards to leaflet stress - impacts on valve durability. Although leaflet stress cannot be measured directly, it can be determined using finite element modeling, with such models requiring the mechanical properties of the leaflets...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544831/aortic-root-surgery-in-marfan-syndrome-medium-term-outcome-in-a-single-center-experience
#7
Christine H Attenhofer Jost, Heidi M Connolly, Christopher G Scott, Naser M Ammash, Juan M Bowen, Hartzell V Schaff
BACKGROUND: The study aim was to analyze the authors' experience with aortic root surgery in Marfan syndrome (MFS), and to expand the surgical outcome data of patients meeting the Ghent criteria (Marfan registry). METHODS: Analyses were performed of data acquired from MFS patients (who met the Ghent criteria), including an aortic root surgery and Kaplan-Meier survival. RESULTS: Between April 2004 and February 2012, a total of 59 MFS patients (mean age at surgery 36 ± 13 years) underwent 67 operations for aortic root aneurysm (n = 52), aortic valve (AV) regurgitation (n = 15), acute aortic dissection (n = 2), and/or mitral valve (MV) regurgitation resulting from MV prolapse (n = 7)...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544828/acute-aortic-regurgitation-in-the-current-era-of-percutaneous-treatment-pathophysiology-and-hemodynamics
#8
Baris Bugan, Erkan Yildirim, Murat Celik, Uygar Cagdas Yuksel
Aortic regurgitation (AR) is characterized by the backflow of blood from the aorta to the left ventricle. Acute AR typically causes severe pulmonary edema and hypotension, and is a surgical emergency. In chronic AR, however, compensatory mechanisms can clinically compensate for years, with normal left ventricular function and no symptoms. While the hemodynamic mechanisms of chronic AR on the left ventricle are well described, the hemodynamic mechanisms of acute AR are not clear. Most of the literature on acute AR includes either small series or case reports...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544827/procedural-techniques-for-the-management-of-severe-transvalvular-and-paravalvular-aortic-regurgitation-during-tavr
#9
Abdulla A Damluji, Carlos E Alfonso, Mauricio G Cohen
Aortic regurgitation (AR) after transcatheter aortic valve replacement (TAVR) is associated with an increased risk of mortality. In severe cases, abrupt hemodynamic changes may occur with a sudden increase in left ventricular end-diastolic pressure that results in frank pulmonary edema, hypoxia, and cardiogenic shock. Here, the case is reported of a patient who developed severe AR immediately after valve deployment that led to severe hemodynamic compromise. The procedural techniques necessary for the immediate management of severe transvalvular and paravalvular AR are described...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544825/leaflet-hypomobility-after-transcatheter-aortic-valve-replacement-thrombosis-or-mechanical-factors-a-possible-pathophysiological-pattern
#10
Michele Gallo, Stefanos Demertzis, Gino Gerosa, Enrico Ferrari
Transcatheter heart valve replacement is an emerging technology in the treatment of valvular disease. During recent years, the opportunity to replace a heart valve via percutaneous access or via a miniinvasive access without the use of cardiopulmonary bypass has revolutionized the approach to this pathology. The different designs of transcatheter valves have also altered the spectrum of possible complications, with the unexpected occurrence of leaflet hypomobility after valve deployment. Here, the pathophysiological pattern of this complication is categorized, and an analysis provided of recently reported clinical evidences...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544824/sutureless-valves-reduce-hospital-costs-compared-to-traditional-valves
#11
François Laborde, Thierry Folliguet, Gabriel Ghorayeb, Konstantinos Zannis
BACKGROUND: The study aim was to assess differences in clinical outcome, safety, and associated costs between sutureless and aortic isolated aortic valve replacement (AVR) with a standard bioprosthesis. METHODS: A retrospective comparative study was conducted to investigate 65 patients, each of whom had undergone isolated AVR with a traditional aortic valve (T) or a Perceval S sutureless aortic prosthesis (P) between January 2010 and December 2012. Cost data were drawn from the proprietary cost accounting system of the hospital, excluding acquisition costs of the devices...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544120/prognostic-significance-of-aortic-valve-gradient-in-patients-with-severe-aortic-stenosis-undergoing-transcatheter-aortic-valve-replacement
#12
Guy Witberg, Arik Finkelstein, Issi Barbash, Abid Assali, Yaron Shapira, Amit Segev, Amir Halkin, Paul Fefer, Jeremy Ben-Shoshan, Maayan Konigstein, Alexander Sagie, Victor Guetta, Ran Kornowski, Alon Barsheshet
OBJECTIVE: To evaluate the effect of baseline aortic valve gradient (AVG) both as a continuous and a categorical variable on mortality in patients undergoing transcatheter aortic valve replacement (TAVR), focusing on the high-gradient severe aortic stenosis (AS) patients. BACKGROUND: Identifying new predictors of mortality in the TAVR population can help refine risk stratification and improve the patient selection process for this procedure. So far, AVG has mainly been studied as a categorical variable and there is a paucity of data on its prognostic value as a continuous variable, especially in patients with high AVG AS, who constitute the majority of patients referred for TAVR...
May 22, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28544015/transfemoral-transcatheter-acurate-neo%C3%A2-aortic-valve-replacement-in-a-patient-with-a-previous-mechanical-mitral-valve
#13
Rodrigo Bagur, Vincenzo Pestrichella, Rosamaria Montesanti, Rossella Alemanni, Mauro Cassese
Transcatheter aortic valve replacement (TAVR) in the presence of a mechanical mitral valve (MMV) prosthesis is challenging due to the stiff mitral cage in the boundaries of the aorto-mitral curtain. We describe the technique for TAVR using the ACURATE-neo™ aortic bioprosthesis in a patient with a MMV prosthesis.
May 24, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28543757/transcatheter-aortic-valve-replacement-for-a-bicuspid-aortic-valve-following-replacement-of-the-ascending-aorta
#14
Paolo Nardi, Marco Russo, Guglielmo Saitto, Gian Paolo Ussia, Giovanni Ruvolo
A normally functioning bicuspid aortic valve that is spared during replacement of the ascending aorta may ultimately require replacement due to structural deterioration. We report the use of trans-aortic valve replacement to replace a stenotic BAC 17 years following replacement of the ascending aorta.
May 21, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28543102/low-flow-low-gradient-aortic-stenosis-still-a-diagnostic-and-therapeutic-challenge
#15
REVIEW
Anja Vogelgesang, Gerd Hasenfuss, Claudius Jacobshagen
Aortic stenosis (AS) is the most frequently observed valvular heart disease. During the symptomatic stage, the rate of death increases dramatically, so that a precise diagnostic approach is taken to guide therapeutic options. Of patients with severe AS, 30% to 50% present with low-flow/low-gradient AS (LF/LGAS) status. This review focuses on LF/LGAS and the best diagnostic and therapeutic management in either classic LF/LGAS with reduced left ventricular ejection fraction (LVEF) or paradoxical LF/LGAS with preserved LVEF...
May 23, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28541520/cardiovascular-surgery-in-loeys-dietz-syndrome-types-1-4
#16
Kirsten Krohg-Sørensen, Per Snorre Lingaas, Runar Lundblad, Egil Seem, Benedicte Paus, Odd R Geiran
OBJECTIVES: The first publication of Loeys-Dietz syndrome (LDS) described aortic rupture at young ages. Experience with new LDS types showed that the clinical course varies, and thresholds for prophylactic surgery are discussed. As this is an uncommon disease, experience needs to be shared. METHODS: Retrospective review of patients with LDS types 1-4 undergoing cardiovascular surgery during the years 1991-2016. RESULTS: Thirty-five patients (including 6 children with LDS2) underwent 57 operations...
May 24, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28540078/use-of-multidetector-row-computed-tomography-scan-to-detect-pannus-formation-in-prosthetic-mechanical-aortic-valves
#17
REVIEW
Mohamed A Aladmawi, Claudio Pragliola, Olga Vriz, Domenico Galzerano
Obstruction of a mechanical aortic valve by pannus formation at the subvalvular level is a major long-term complication of aortic valve replacement (AVR). In fact, pannus is sometime difficult to differentiate from patient-prosthesis mismatch or valve thrombosis. In most cases cine-angiography and echocardiography, either transthoracic or transesophageal, cannot correctly visualize the complication when the leaflets show a normal mobility. Recent technological refinements made this difficult diagnosis possible by ECG-gated computed tomography (CT) scan which shows adequate images in 90% of the cases and can differentiate pannus from fresh and organized thrombus...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28540072/standard-imaging-techniques-in-transcatheter-aortic-valve-replacement
#18
REVIEW
Arash Salemi, Berhane M Worku
Transcatheter aortic valve replacement (TAVR) has become a widely accepted therapeutic option for patients with severe, symptomatic aortic stenosis at intermediate, high, or extreme risk for conventional surgery as determined through a heart team approach. Two valve prostheses are currently available and the Food and Drug Administration (FDA) approved in the United States for TAVR: the self-expandable Medtronic CoreValve (Medtronic, Inc., Minneapolis, MN, USA) and the balloon-expandable Edwards Sapien Valve (Edwards Lifesciences, Irvine CA, USA)...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28537454/transfusion-requirements-in-elective-cardiopulmonary-bypass-surgery-patients-predictive-value-of-multiplate-and-thromboelastography-teg-platelet-mapping-assay
#19
Praleene Sivapalan, Anne Caroline Bäck, Sisse Rye Ostrowski, Hanne Berg Ravn, Pär Ingemar Johansson
Managing haemostasis in patients undergoing cardiopulmonary bypass (CPB) surgery remains a challenge. There is no established laboratory test to predict transfusion requirements in cardiac surgery. We investigated whether preoperative Thromboelastography (TEG) with Platelet Mapping Assay (PMA) or Multiple Electrode Aggrometry (MEA) could predict transfusion requirements in patients undergoing elective coronary artery bypass grafting (CABG) or combined CABG with aortic or mitral valve replacement. We prospectively investigated 199 patients undergoing elective CABG or combined procedures...
May 24, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28536843/human-interstitial-cellular-model-in-therapeutics-of-heart-valve-calcification
#20
REVIEW
Caimei He, Hai Tang, Zijian Mei, Nichujie Li, Zhi Zeng, Kwame Oteng Darko, Yulong Yin, Chien-An Andy Hu, Xiaoping Yang
Calcific aortic valve disease is a common, severe heart condition that is currently with no proven, effective drug treatment and requires a surgical valve replacement or an entire heart explanation. Thus, developing novel, targeted therapeutic approaches becomes a major goal for cardiovascular disease research. To achieve this goal, isolated heart valve interstitial cells could be an advanced model to explore molecular mechanisms and measure drug efficacy. Based on this progress, molecular mechanisms that harbor components of  inflammation and fibrosis coupled with proteins, for example, BMP-2, TLRs, RANKL, Osteoprotegerin, have been proposed...
May 23, 2017: Amino Acids
keyword
keyword
66444
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"