keyword
MENU ▼
Read by QxMD icon Read
search

mitral valve gradients

keyword
https://www.readbyqxmd.com/read/28805039/unnatural-milieu-thrombus-after-transcatheter-mitral-valve-replacement
#1
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/28792140/effect-of-patient-prosthesis-mismatch-in-aortic-position-on-late-onset-tricuspid-regurgitation-and-clinical-outcomes-after-double-valve-replacement
#2
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
#3
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/28790238/-early-postoperative-hemodynamics-of-mitral-valvuloplasty-using-colvin-galloway-future-band
#4
Ryosuke Funahashi, Yukikatsu Okada, Takashi Muro, Hitoshi Inanami, Tomoyuki Takemoto
The Colvin-Galloway( CG) Future annuloplasty band is a new semirigid partial band, which was introduced in 2012 in Japan. A total of 60 consecutive patients who underwent mitral valve repair with the CG Future Band were assessed by echocardiography in terms of residual mitral regurgitation and diastolic mitral function postoperatively. Intraoperative 3-dimensional echocardiography beautifully demonstrated the physiological change of the aortic curtain during the cardiac cycle. 30 mm was used in 18 patients, 32 mm in 17, 28 mm in 15, 34 mm in 5, 36 mm in 2, and 26 mm in 2...
August 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28780576/mechanical-and-surgical-bioprosthetic-valve-thrombosis
#5
REVIEW
Wei Yao Lim, Guy Lloyd, Sanjeev Bhattacharyya
Valve thrombosis can occur in mechanical prosthetic valves and is increasingly recognised in transcatheter and surgically implanted bioprosthetic valves. The risk of thrombosis of mechanical valves is higher in the mitral position compared with aortic position and in older generation valves (ball and cage valves). There is a wide spectrum of presentation from the asymptomatic patient to those with embolic complications or cardiogenic shock. A combination of transthoracic and transesophageal echocardiography is required to assess the haemodynamic effect of thrombosis (valve gradients and area), leaflet motion and thrombus size...
August 5, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28760473/transapical-mitral-valve-implantation-for-native-mitral-valve-stenosis-using-a-balloon-expandable-prosthesis
#6
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/28712559/impact-of-percutaneous-mitral-valvuloplasty-on-left-ventricular-function-in-patients-with-mitral-stenosis-assessed-by-3d-echocardiography
#7
William Antonio M Esteves, Lucas Lodi-Junqueira, Juliana Rodrigues Soares, Guilherme Rafael Sant'Anna Athayde, Gabriela Assunção Goebel, Lucas Amorim Carvalho, Xin Zeng, Judy Hung, Timothy C Tan, Maria Carmo Pereira Nunes
BACKGROUND: The status of intrinsic left ventricular (LV) contractility in patients with isolated rheumatic mitral stenosis (MS) has been debated. The acute changes in loading conditions after percutaneous mitral valvuloplasty (PMV) may affect LV performance. We aimed to examine the acute effects of PMV on LV function and identify factors associated with LV ejection fraction (LVEF) changes, and determinants of long-term events following the procedure. METHODS: One hundred and forty-two patients who underwent PMV for symptomatic rheumatic MS (valve area of 0...
June 23, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28697003/the-respect-rather-than-resect-principle-in-mitral-valve-repair-the-lateral-dislocation-of-the-p2-technique
#8
Marco Zanobini, Gabriella Ricciardi, Francesco Liborio Mammana, Samer Kassem, Paolo Poggio, Alessandro Di Minno, L Cavallotti, Matteo Saccocci
BACKGROUND: Leaflet resection represents the reference standard for surgical treatment of mitral valve (MV) regurgitation. New approaches recently proposed place emphasis on respecting, rather than resecting, the leaflet tissue to avoid the drawbacks of the 'resection' approach. OBJECTIVES: The lateral dislocation of mid portion of mitral posterior leaflet (P2) technique for MV repair is a nonresectional technique in which the prolapsed P2 segment is sutured to normal P1 segment...
September 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28684438/five-year-follow-up-after-transcatheter-aortic-valve-implantation-for-symptomatic-aortic-stenosis
#9
Ralf Zahn, Nicolas Werner, Ulrich Gerckens, Axel Linke, Horst Sievert, Philipp Kahlert, Rainer Hambrecht, Stefan Sack, Mohamed Abdel-Wahab, Ellen Hoffmann, Uwe Zeymer, Steffen Schneider
OBJECTIVES: Transcatheter aortic valve implantation (TAVI) has been implemented into the care of elderly patients suffering from severe symptomatic aortic stenosis. However, data on long-term follow-up are sparse and predictors of long-term mortality need to be evaluated to better select patients. Therefore, we aimed to analyse predictors of 5-year mortality after TAVI. METHODS: We analysed data from the German Transcatheter Aortic Valve Interventions-Registry. Each of the 27 participating hospitals agreed to include all consecutive TAVI patients at their institution...
July 6, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28683992/assessment-of-mitral-valve-repair-with-exercise-echocardiography-artificial-chordae-vs-leaflet-resection
#10
Sigurdur Ragnarsson, Johan Sjögren, Martin Stagmo, Per Wierup, Shahab Nozohoor
Mitral valve (MV) repair with artificial chordae (AC) or leaflet resection (LR) is associated with good hemodynamics at rest. The aim of this study was to compare these techniques in terms of exercise capacity and echocardiographic parameters of hemodynamics at rest and peak exercise. We conducted a study in 2015 of 56 patients, who had undergone surgery for degenerative posterior mitral leaflet prolapse between 2005 and 2014 using either AC (n = 24) or LR (n = 32). Clinical data were collected, exercise capacity was measured, and resting echocardiography and peak exercise echocardiography were performed...
April 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28676179/transaortic-edge-to-edge-mitral-valve-repair-for-moderate-secondary-functional-mitral-regurgitation-in-patients-undergoing-aortic-root-valve-intervention
#11
Shiv Kumar Choudhary, Atul Abraham, Amol Bhoje, Parag Gharde, Manoj Sahu, Sachin Talwar, Balram Airan
OBJECTIVE: The present study evaluates the feasibility, safety, and efficacy of edge-to-edge repair for moderate secondary/functional mitral regurgitation in patients undergoing aortic valve/root interventions. METHODS: Sixteen patients underwent transaortic edge-to-edge mitral valve repair. Mitral regurgitation was 2+ in 8 patients and 3+ in 6 patients. Two patients in whom cardiac arrest developed preoperatively had severe (4+) mitral regurgitation. Patients underwent operation for severe aortic regurgitation ± aortic root lesions...
June 13, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28673638/effect-of-percutaneous-edge-to-edge-repair-on-mitral-valve-area-and-its-association-with-pulmonary-hypertension-and-outcomes
#12
Hiroto Utsunomiya, Yuji Itabashi, Sayuki Kobayashi, Florian Rader, Asma Hussaini, Moody Makar, Alfredo Trento, Robert J Siegel, Saibal Kar, Takahiro Shiota
Percutaneous edge-to-edge repair using the MitraClip system causes reduction in mitral valve area (MVA). However, its clinical impact is not fully elucidated. This study assessed the impact of postprocedural MVA reduction on pulmonary hypertension and outcomes. A total of 92 patients with grades 3 to 4 + mitral regurgitation (MR) who underwent MitraClip therapy were retrospectively reviewed. Using intraprocedural, 3-dimensional transesophageal echocardiography, postprocedural MVA was obtained by 2 optimized planes through the medial and lateral orifices of the repaired valve...
May 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28659549/predictors-and-clinical-impact-of-functional-mitral-stenosis-induced-by-restrictive-annuloplasty-for-ischemic-and-functional-mitral-regurgitation
#13
Satoshi Kainuma, Kazuhiro Taniguchi, Koichi Toda, Toshihiro Funatsu, Haruhiko Kondoh, Shigeru Miyagawa, Yasushi Yoshikawa, Hiroki Hata, Shunsuke Saito, Takayoshi Ueno, Toru Kuratani, Takashi Daimon, Takafumi Masai, Yoshiki Sawa
BACKGROUND: There are few reports of the determinants of "functional" mitral stenosis in terms of a residual mitral valve (MV) pressure gradient >5 mmHg following restrictive mitral annuloplasty (RMA) or the effect on long-term outcome in patients with functional mitral regurgitation (MR).Methods and Results:Serial cardiac catheterization and echocardiographic studies were performed in 55 patients with functional MR who underwent RMA using a 24/26-mm semi-rigid complete ring. The mean postoperative (1 month) catheter-measured MV gradient was 3...
June 28, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28597998/a-novel-mechanical-mitral-valve-replacement-using-sapien-xt
#14
Megan Koehle, Justin A Strote, Mark Guadagnoli, J Bradley Oldemeyer
PATIENT PRESENTATION: We report the case of a 66 year old female who presented to our institution fourteen years after receiving a St. Jude Mechanical Mitral Valve Replacement. She presented in refractory NYHA class IV congestive heart failure with comorbidities of acute renal failure, liver failure, and mental status changes. She was found to have immobility of one of the mitral valve disks with resultant severe mitral stenosis with a mean pressure gradient of 12 mmHg. EVALUATION AND MANAGEMENT: The patient was found to have an STS predicted mortality of 39% with redo surgical MVR, and evaluation by the valve team led to a recommendation of a hybrid surgical and transcatheter procedure...
June 9, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28575282/mitral-valve-repair-or-replacement-in-hypertrophic-obstructive-cardiomyopathy-a-prospective-randomized-study%C3%A2
#15
Alexander Bogachev-Prokophiev, Alexander Afanasyev, Sergey Zheleznev, Michael Fomenko, Ravil Sharifulin, Eugenie Kretov, Alexander Karaskov
OBJECTIVES: The optimal surgical strategy for concomitant mitral valve intervention during myectomy remains controversial. The purpose of this study was to compare the results of mitral valve replacement versus repair in patients with hypertrophic obstructive cardiomyopathy and severe mitral regurgitation. METHODS: Between 2010 and 2013, a total of 88 patients with hypertrophic obstructive cardiomyopathy and severe mitral regurgitation were randomly assigned to undergo either mitral valve replacement or repair in addition to extended myectomy...
May 29, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28566364/randomised-trial-of-mitral-valve-repair-with-leaflet-resection-versus-leaflet-preservation-on-functional-mitral-stenosis-the-camra-cardiolink-2-trial
#16
Vincent Chan, Michael W A Chu, Howard Leong-Poi, David A Latter, Judith Hall, Kevin E Thorpe, Benoit E de Varennes, Adrian Quan, Wendy Tsang, Natasha Dhingra, Kibar Yared, Hwee Teoh, F Victor Chu, Kwan-Leung Chan, Thierry G Mesana, Kim A Connelly, Marc Ruel, Peter Jüni, C David Mazer, Subodh Verma
BACKGROUND: The gold-standard treatment of severe mitral regurgitation (MR) due to degenerative disease is valve repair, which is surgically performed with either a leaflet resection or leaflet preservation approach. Recent data suggest that functional mitral stenosis (MS) may occur following valve repair using a leaflet resection strategy, which adversely affects patient prognosis. A randomised comparison of these two approaches to mitral repair on functional MS has not been conducted...
May 30, 2017: BMJ Open
https://www.readbyqxmd.com/read/28554987/the-impact-of-cardiac-rhythm-on-the-mitral-valve-area-and-gradient-in-patients-with-mitral-stenosis
#17
Hasan Arı, Selma Arı, Alper Karakuş, Sencer Camcı, Kübra Doğanay, Ahmet Tütüncü, Mehmet Melek, Tahsin Bozat
OBJECTIVE: The aim of this study was to evaluate the effect of cardiac rhythm on the echocardiographic mitral valve area (MVA) and transmitral gradient calculation in relation to net atrioventricular compliance (Cn). METHODS: Patients (n=22) with mild or moderate pure rheumatic mitral stenosis (MS) (MVA <2 cm2 and MVA >1 cm2) and atrial fibrillation (AF) were evaluated. All patients underwent transthoracic electrical DC cardioversion under amiodarone treatment...
May 24, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28549026/the-use-of-rapid-deployment-valves-in-combined-aortic-and-mitral-valve-surgery-one-year-clinical-and-echocardiographic-outcomes
#18
Markus Schlömicher, Matthias Bechtel, Zulfugar Taghiyev, Yazan Al-Jabery, Peter Lukas Haldenwang, Vadim Moustafine, Justus Thomas Strauch
OBJECTIVE: Patients undergoing multiple valve surgery represent a high-risk group who could potentially benefit from a reduction of cross-clamp and cardiopulmonary bypass times because prolonged bypass and cross-clamp times are considered independent risk factors for increased morbidity and mortality after cardiac surgery. METHODS: Between July 2013 and November 2014, 16 patients underwent rapid deployment aortic valve replacement with the EDWARDS INTUITY valve system in the setting of concomitant mitral disease...
May 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28532769/mitral-valve-repair-for-pure-mitral-regurgitation-followed-years-later-by-mitral-valve-replacement-for-mitral-stenosis
#19
REVIEW
Tiffany M Becker, Paul A Grayburn, William C Roberts
We describe herein 2 patients who developed severe mitral stenosis (MS) approximately two decades after a mitral valve repair operation for pure mitral regurgitation (MR) secondary to mitral valve prolapse. This report's purpose is to point out that use of a circumferential mitral annular ring during the repair has the potential to produce a transmitral pressure gradient just like that occurring after mitral valve replacement utilizing a mechanical prosthesis or a bioprosthesis in the mitral position.
July 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28506459/increased-mitral-gradient-after-transcatheter-aortic-valve-replacement-is-it-anatomic-mitral-valve-obstruction-or-related-to-hemodynamics
#20
Michael Essandoh, Jonathan Tang, Leonid Gorelik
No abstract text is available yet for this article.
February 13, 2017: Journal of Cardiothoracic and Vascular Anesthesia
keyword
keyword
101973
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"