keyword
MENU ▼
Read by QxMD icon Read
search

proportional valve

keyword
https://www.readbyqxmd.com/read/29134537/current-status-of-cardiovascular-surgery-in-japan-2013-and-2014-a-report-based-on-the-japan-cardiovascular-surgery-database-4-valvular-heart-surgery
#1
Kiyoharu Nakano, Norimichi Hirahara, Noboru Motomura, Hiroaki Miyata, Shinichi Takamoto
Data from the Japan cardiovascular surgery database from 2013 to 2014 were analyzed to demonstrate the mortality rate and choice of surgical procedures, especially concerning the selection of valve prosthesis for each valve position and patient age group, and the effects of preoperative complications on mortality and prosthetic valve selection. The proportion of each surgical procedure was compared for each patient age in the aortic, mitral, and tricuspid positions. The proportion of mechanical valve prostheses was 23...
November 13, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29134238/a-comparison-of-anterograde-versus-retrograde-approaches-for-neonatal-balloon-aortic-valvuloplasty
#2
Namrita Mozumdar, Edmund Burke, Melissa Schweizer, Matthew J Gillespie, Yoav Dori, Hari K Narayan, Jonathan J Rome, Andrew C Glatz
In neonates requiring balloon aortic valvuloplasty, both anterograde and retrograde approaches are feasible. A recent comparison of these two approaches is lacking. A retrospective cohort study of neonates at a single center undergoing BAV from 9/00 to 7/14 was performed. Records were reviewed including pre- and post-intervention echocardiograms and catheterization data. Comparisons of acute efficacy and procedural safety were made based on type of approach utilized. Forty-two neonates underwent BAV. Eleven cases utilized exclusively an anterograde approach, while 31 included a retrograde approach (including 4 with both approaches used)...
November 13, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/29129374/the-jarvik-2000-left-ventricular-assist-device-as-a-bridge-to-transplantation-japanese-registry-for-mechanically-assisted-circulatory-support
#3
Hiroki Kohno, Goro Matsumiya, Yoshiki Sawa, Minoru Ono, Yoshikatsu Saiki, Akira Shiose, Kenji Yamazaki, Yoshiro Matsui, Hiroshi Niinami, Hikaru Matsuda, Soichiro Kitamura, Takeshi Nakatani, Shunei Kyo
BACKGROUND: The Jarvik 2000 ventricular assist device features a miniaturized intraventricular pump and an intermittent low-speed function that facilitates aortic valve opening. Despite its long history, little is known about the Jarvik device with regard to post-implantation outcomes. METHODS: Prospectively collected data from 13 participating hospitals were extracted from the Japanese Registry for Mechanically Assisted Circulatory Support database to analyze mortality, morbidity and de-novo aortic regurgitation...
October 24, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29125270/alternative-incision-sutureless-aortic-valve-replacement-propensity-matched-comparison-between-partial-sternotomy-and-right-anterior-minithoracotomy
#4
Daniyar Gilmanov, Marco Solinas, Giuseppe Santarpino, Pier A Farneti, Michele Murzi, Theodor Fischlein, Steffen Pfeiffer
BACKGROUND: Sutureless aortic valve prostheses have the potential to augment the adoption of alternative incision approaches for aortic valve replacement (AVR). Still, we lack the evidence on which surgical approach is best associated with sutureless AVR. METHODS: Data on 483 patients undergoing sutureless small incision AVR between 2010-2014 in two European institutions (207 with partial sternotomy (MS) and 276 via right anterior minithoracotomy (RAMT)) have been retrospectively analyzed...
November 10, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29104738/clinical-outcomes-of-tricuspid-valve-repair-accompanying-left-sided-heart-disease
#5
Kasra Azarnoush, Ahmad S Nadeemy, Bruno Pereira, Massoud A Leesar, Céline Lambert, Alaa Azhari, Vedat Eljezi, Nicolas Dauphin, Etienne Geoffroy, Lionel Camilleri
AIM: To determine whether the need for additional tricuspid valve repair is an independent risk factor when surgery is required for a left-sided heart disease. METHODS: One hundred and eighty patients (68 ± 12 years, 79 males) underwent tricuspid annuoplasty. Cox proportional-hazards regression model for multivariate analysis was performed for variables found significant in univariate analyses. RESULTS: Tricuspid regurgitation etiology was functional in 154 cases (86%), organic in 16 cases (9%), and mixed in 10 cases (6%), respectively...
October 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/29100062/thoracic-extra-coronary-calcification-for-the-prediction-of-stroke-the%C3%A2-multi-ethnic-study-of-atherosclerosis
#6
Sina Kianoush, Mahmoud Al Rifai, Miguel Cainzos-Achirica, Mouaz H Al-Mallah, Geoffrey H Tison, Joseph Yeboah, Michael D Miedema, Matthew A Allison, Nathan D Wong, Andrew P DeFilippis, William Longstreth, Khurram Nasir, Matthew J Budoff, Kunihiro Matsushita, Michael J Blaha
BACKGROUND AND AIMS: Atherosclerosis is a systemic disease. We examined whether the cumulative burden of thoracic extra-coronary calcification (ECC) improves prediction of stroke, transient ischemic attack (TIA), and stroke mortality beyond traditional risk factors and coronary artery calcium (CAC). METHODS: We followed a total of 6805 participants (mean age 62.1 ± 10.2 years, 47.2% male) from the Multi-Ethnic Study of Atherosclerosis (MESA) over a median of 12...
October 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29096870/hypoplastic-left-heart-syndrome-is-not-a-predictor-of-worse-intermediate-mortality-post-fontan
#7
Billie-Jean Martin, Kandice Mah, Luke Eckersley, Joyce Harder, Charissa Pockett, Daryl Schantz, John Dyck, Mohammed Al Aklabi, Ivan M Rebeyka, David B Ross
BACKGROUND: An increasing proportion of those living with single ventricle physiology have hypoplastic left heart syndrome (HLHS). Our objective was to assess the association between HLHS and outcomes post Fontan operation. METHODS: All pediatric patients who underwent a Fontan procedure at the University of Alberta between 1996 and 2016 were included. Follow-up clinical data collected included early and late surgical or catheter reintervention, echocardiography, and long-term transplant-free survival...
October 30, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29092919/aortic-valve-replacement-associated-with-survival-in-severe-regurgitation-and-low-ejection-fraction
#8
Amy G Fiedler, Vijeta Bhambhani, Elizabeth Laikhter, Michael H Picard, Meagan M Wasfy, George Tolis, Serguei Melnitchouk, Thoralf M Sundt, Jason H Wasfy
OBJECTIVES: Although guidelines support aortic valve replacement (AVR) in patients with severe aortic regurgitation (AR) and left ventricular ejection fraction (LVEF) <50%, severe left ventricular dysfunction (LVEF <35%) is thought to confer high surgical risk. We sought to determine if a survival benefit exists with AVR compared with medical management in this high-risk, relatively rare population. METHODS: A large institutional echocardiography database was queried to identify patients with severe AR and LVEF <35%...
November 1, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29076787/subdural-hematomas-in-1846-patients-with-shunted-idiopathic-normal-pressure-hydrocephalus-treatment-and-long-term-survival
#9
Nina Sundström, Marcus Lagebrant, Anders Eklund, Lars-Owe D Koskinen, Jan Malm
OBJECTIVE Subdural hematoma (SDH) is the most common serious adverse event in patients with shunts. Adjustable shunts are used with increasing frequency and make it possible to noninvasively treat postoperative SDH. The objective of this study was to describe the prevalence and treatment preferences of SDHs, based on fixed or adjustable shunt valves, in a national cohort of patients with shunted idiopathic normal pressure hydrocephalus (iNPH), as well as to evaluate the effect of SDH and treatment on long-term survival...
October 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29071746/spontaneous-embolization-of-an-atrial-septal-defect-occluder-device-into-the-left-ventricular-outflow-tract-in-a-patient-with-pulmonary-stenosis
#10
Mustafa Agca, Abdulrahman Naser, Ahmet Guner, Alev Kılıcgedik, Mehmet Celik, Taylan Akgun, Emine Alpay, Mehmet Yanartas, Gokhan Kahveci
A 24-year-old man was admitted to our outpatient clinic for his routine checkup of consecutively percutaneously treated atrial septal defect (ASD) and pulmonary valvular stenosis 45 days ago. A 24 mm ASD occluder device was implanted under transthoracic echocardiographic guidance and 80 mm Hg peak-to-peak pulmonary valvular gradient decreased to 20 mm Hg gradient after pulmonary valve dilatation with 23 mm NUMED II transluminal valvuloplasty catheter balloon. Atrial septal defect (ASD) closure is now routinely performed using a percutaneous approach under echocardiographic guidance especially transthoracic echocardiography (TEE)...
October 26, 2017: Echocardiography
https://www.readbyqxmd.com/read/29071740/coaptation-triangle-and-golden-proportion-in-mitral-valve-anatomy-does-nature-play-with-geometry
#11
Luca Deorsola, Alessandra Bellone
INTRODUCTION: The Coaptation Triangle, or Tenting Area, can be identified on long-axis 2D images. Its assessment is a routine practice during echocardiographic mitral evaluation. The Golden Proportion is a particular geometric ratio between two segments. Its value is an irrational number, commonly rounded to 0.618 and showing unique geometrical/mathematical properties. Interestingly, its presence has been documented in an extremely variable number of natural settings. Hypothesizing the presence of the Golden Proportion in normal mitral anatomy, we examined the Coaptation Triangle of healthy valves to investigate such a theory...
October 26, 2017: Echocardiography
https://www.readbyqxmd.com/read/29062740/outcomes-of-surgical-and-transcatheter-aortic-valve-replacement-in-the-octogenarians-surgery-still-the-gold-standard
#12
Sameer A Hirji, Fernando Ramirez-Del Val, Ahmed A Kolkailah, Julius I Ejiofor, Siobhan McGurk, Ritam Chowdhury, Jiyae Lee, Pinak B Shah, Piotr S Sobieszczyk, Sary F Aranki, Marc P Pelletier, Prem S Shekar, Tsuyoshi Kaneko
BACKGROUND: Contemporary options for aortic valve replacement (AVR) include transcatheter and surgical approaches (TAVR and SAVR). As evidence accrues for TAVR in high and intermediate risk patients, some clinicians advocate that all patients aged over 80 years should only receive TAVR. Our aim was to investigate the utility of SAVR and minimally invasive AVR (mAVR) among octogenarians in the current era of TAVR. METHODS: From 2002 to 2015, 1,028 octogenarians underwent isolated AVR; 306 TAVR and 722 SAVR, of which 378 patients underwent mAVR...
September 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29059484/imaging-characteristics-of-papillary-muscle-site-of-origin-of-ventricular-arrhythmias-in-patients-with-mitral-valve-prolapse
#13
Brian L Fulton, Jackson J Liang, Andres Enriquez, Fermin C Garcia, Gregory E Supple, Michael P Riley, Robert D Schaller, Sanjay Dixit, David J Callans, Francis E Marchlinski, Yuchi Han
BACKGROUND: Mitral valve prolapse has been associated with increased risk of ventricular arrhythmias. We aimed to examine whether certain cardiac imaging characteristics are associated with papillary muscle origin of ventricular arrhythmias in these patients. METHODS & RESULTS: We screened electronic medical records of all patients documented to have mitral valve prolapse on either transthoracic echocardiography (TTE) or cardiac magnetic resonance imaging (CMR) in our center, who also underwent an electrophysiologic study (EPS) between 2007 and 2016...
October 23, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29054364/-indication-for-mitral-valve-interventions-development-of-a-quality-indicator-for-external-hospital-quality-assurance
#14
Christina Köster, Lena Schorbach, Stephanie Wrede, Sven Meyer, Tonia Kazmaier, Joachim Szecsenyi
BACKGROUND: The indication for a mitral valve intervention is an important patient-relevant parameter for the assessment of process quality and the comparison of healthcare providers. In this article, we describe the development of a corresponding quality indicator for an external hospital quality assurance (QA) procedure in Germany. METHODS: An expert panel was set up by the aQua Institute to assist with the development of a QA procedure for mitral valve interventions and the associated quality indicators...
October 17, 2017: Zeitschrift Für Evidenz, Fortbildung und Qualität Im Gesundheitswesen
https://www.readbyqxmd.com/read/29054156/potential-of-transcatheter-aortic-valve-replacement-to-improve-post-procedure-renal-function
#15
Bruno L R Faillace, Henrique B Ribeiro, Carlos M Campos, Adriano A M Truffa, Fernando L Bernardi, Marcos D P Oliveira, José Mariani, Julio F Marchini, Flavio Tarasoutchi, Pedro A Lemos
BACKGROUND: Baseline comorbidities including renal dysfunction are frequently found in patients treated with transcatheter aortic valve replacement (TAVR) and may increase the risks of acute kidney injury (AKI), although some of them may actually improve renal function. We aimed to evaluate the potential of TAVR to acutely improve post-procedure renal function. METHODS: This is a prospective single-center registry of consecutive patients with severe symptomatic aortic stenosis treated by transfemoral TAVR...
October 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29049741/transapical-transcatheter-aortic-valve-implantation-in-patients-with-a-low-ejection-fraction
#16
Guram Imnadze, Steffen Hofmann, Michael Billion, Abbas Ferdosi, Marek Kowalski, Katherine H Smith, Cornelia Deutsch, Peter Bramlage, Henning Warnecke, Norbert Franz
OBJECTIVES: It may be expected that patients with left ventricular dysfunction may be at greater risk of complications after transcatheter aortic valve implantation (TAVI) via transapical (TA) access compared with via transfemoral (TF) access. There is a lack of data comparing the outcomes of TAVI using TA and TF access in patients with a reduced left ventricular ejection fraction (EF). METHODS: This is a retrospective analysis of data from a high-volume heart centre in Germany...
September 26, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049235/comparing-the-protective-performances-of-3-types-of-n95-filtering-facepiece-respirators-during-chest-compressions-a-randomized-simulation-study
#17
RANDOMIZED CONTROLLED TRIAL
Hyungoo Shin, Jaehoon Oh, Tae Ho Lim, Hyunggoo Kang, Yeongtak Song, Sanghyun Lee
OBJECTIVE: Healthcare providers in emergency departments should wear respirators for infection protection. However, the wearer's vigorous movements during cardiopulmonary resuscitation may affect the protective performance of the respirator. Herein, we aimed to assess the effects of chest compressions (CCs) on the protective performance of respirators. METHODS: This crossover study evaluated 30 healthcare providers from 1 emergency department who performed CC with real-time feedback...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29032780/prediction-of-the-amino-acid-digestibility-of-legume-seeds-in-growing-pigs-a-meta-analysis-approach
#18
F Messad, M P Létourneau-Montminy, E Charbonneau, D Sauvant, F Guay
On pig farms, a high proportion of the cost of production comes from feed costs. However, the use of alternative ingredients such as legume seeds may help to reduce this cost. In fact, legume seeds are an important source of essential amino acids (EAA) and can therefore be an alternative to oilseed meals. However, the accurate use of these legume seeds requires a precise knowledge of the standardized ileal digestibility (SID) of EAA, which may vary depending on its botanical variety. A meta-analysis was performed on a database compiling data from 41 studies published between 1981 and 2013 and 178 dietary treatments...
October 16, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29031428/aortic-valve-replacement-in-small-patients
#19
Y Hisata, S Yokose, S Hazama, I Matsumaru, K Eishi
OBJECTIVES: Asians are smaller than Europeans and North Americans, but aortic valve replacement (AVR) in small patients has not been examined. We aimed to compare short- and mid-term outcomes of AVR between small and non-small patients. METHODS: We retrospectively divided 173 patients who underwent AVR into small (S, n = 95) and non-small (NS, n = 78) groups according to body surface area (≤1.6 in men, ≤1.5 in women) and analyzed differences in baseline characteristics, procedural and post-procedural variables, and survival...
October 11, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/29029058/inter-ethnic-differences-in-valve-morphology-valvular-dysfunction-and-aortopathy-between-asian-and-european-patients-with-bicuspid-aortic-valve
#20
William K F Kong, Madelien V Regeer, Kian K Poh, James W Yip, Philippe J van Rosendael, Tiong C Yeo, Edgar Tay, Vasileios Kamperidis, Enno T van der Velde, Bart Mertens, Nina Ajmone Marsan, Victoria Delgado, Jeroen J Bax
Background: Transcatheter aortic valve replacement (TAVR) has been shown safe and feasible in patients with bicuspid aortic valve (BAV) morphology. Evaluation of inter-ethnic differences in valve morphology and function and aortic root dimensions in patients with BAV is important for the worldwide spread of this therapy in this subgroup of patients. Comparisons between large European and Asian cohorts of patients with BAV have not been performed, and potential differences between populations may have important implications for TAVR...
October 6, 2017: European Heart Journal
keyword
keyword
102499
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"