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https://www.readbyqxmd.com/read/27909885/kinematics-and-muscle-activation-patterns-during-a-maximal-voluntary-rate-activity-in-healthy-elderly-and-young-adults
#1
Eva Chadnova, Nancy St-Onge, Richard Courtemanche, Robert D Kilgour
BACKGROUND: Maximal voluntary rate (MVR) performance tasks can provide important age-related information to the limiting factors associated with movement and the development of fatigue. AIM: To determine whether kinematic and muscle activation patterns during an MVR task differ between young and older adults. METHODS: We continuously measured frequency, amplitude, peak velocity, index of co-contraction and median frequencies of the index finger flexors and extensors during a 20-s MVR task in 10 young and 10 older subjects...
December 1, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27909274/-three-mitral-valve-operations-in-a-patient-with-trousseau-syndrome-and-nonbacterial-thrombotic-endocarditis-caused-by-ovarian-cancer
#2
Masahito Saito, Naoki Asano, Kazunori Ota, Kazuho Niimi, Koyu Tanaka, Shigeyoshi Gon, Hiroshi Takano
A 52-year-old woman was admitted to our hospital for acute right hemi-paresis, left homonymous hemianopia, and fever. Magnetic resonance imaging of the brain showed multiple cerebral infarctions and transesophageal echocardiography (TEE) revealed a vegetation on the posterior leaflet of her mitral valve. Mitral valve repair was performed under a diagnosis of infective endocarditis (IE). Further multiple cerebral infarctions occurred on the 11th postoperative day, resulting in left hemiplegia and dysarthria...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908765/long-term-requirement-for-pacemaker-implantation-after-cardiac-valve-replacement-surgery
#3
Francisco Leyva, Tian Qiu, David McNulty, Felicity Evison, Howard Marshall, Maurizio Gasparini
BACKGROUND: The risk of permanent pacemaker implantation (PPI) after cardiac valve replacement surgery is thought be highest in the post-operative period. Long-term risks are uncertain. OBJECTIVE: To determine rates and timing of PPI after valve replacement surgery. METHODS: We compared PPI rates patients undergoing aortic (AVR, n = 111,674), mitral (MVR, n = 18,402) valve replacement, AVR+MVR (n = 5,166) or AVR + MVR and tricuspid valve replacement (TVR, n = 114) or CABG without valve replacement (n=249,742)...
November 28, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27905211/minimally-invasive-mitral-repair-surgery-why-does-controversy-still-persist
#4
Jeevan Nagendran, Jorge Catrip, Katie L Losenno, Corey Adams, Bob Kiaii, Michael W A Chu
Surgical treatment for mitral valve disease has evolved and remains a rapidly expanding field. Minimally invasive mitral valve repair (MI-MVR) is a well-known alternative to conventional sternotomy mitral valve repair (cMVR). However, controversy as to the efficacy of MI-MVR persists, hindering the adoption and potential benefits of this less invasive approach. Areas covered: In this review, we provide an updated summary evaluation of the latest evidence, including observational studies, clinical trials and meta-analyses, regarding MI-MVR in comparison to cMVR...
December 1, 2016: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/27895506/patient-reported-financial-barriers-to-adherence-to-treatment-in-neurology
#5
Lidia Mvr Moura, Eli L Schwamm, Valdery Moura Junior, Michael P Seitz, Daniel B Hoch, John Hsu, Lee H Schwamm
OBJECTIVE: Many effective medical therapies are available for treating neurological diseases, but these therapies tend to be expensive and adherence is critical to their effectiveness. We used patient-reported data to examine the frequency and determinants of financial barriers to medication adherence among individuals treated for neurological disorders. PATIENTS AND METHODS: Patients completed cross-sectional surveys on iPads as part of routine outpatient care in a neurology clinic...
2016: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/27852483/mitraclip-therapy-for-mitral-regurgitation-primary-mitral-regurgitation
#6
REVIEW
G Athappan, Mohammad Qasim Raza, Samir R Kapadia
Primary mitral regurgitation (MR) owing to degenerative changes in the structural components of the mitral valve is a common acquired valvular pathology in the elderly. Surgical correction with mitral valve repair (MVRe) or replacement (MVR) is the mainstay of therapy. A significant proportion of patients are ineligible for MVRe/MVR owing to prohibitive surgical risk from advanced age, poor ventricular function, or associated comorbidities. Percutaneous mitral valve repair techniques have been developed to fill this void...
January 2016: Interventional cardiology clinics
https://www.readbyqxmd.com/read/27823679/incidence-and-risk-factors-for-thromboembolism-and-major-bleeding-in-patients-with-mechanical-valve-prosthesis-a-nationwide-population-based-study
#7
Ashkan Labaf, Peter J Svensson, Henrik Renlund, Anders Jeppsson, Anders Själander
BACKGROUND: Risk factors of stroke/thromboembolism (TE) and major bleeding, and incidence of these events in specific age categories in warfarin-treated patients with mechanical heart valves (MHV) are uncertain. Our objective was to calculate event rates in specific age categories and identify risk factors for adverse events. METHODS AND RESULTS: We identified 4,810 treatment periods with MHV between January 2006 and December 2011 in the Auricula and Swedish Web system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies registries...
November 2016: American Heart Journal
https://www.readbyqxmd.com/read/27787606/distal-pancreatectomy-associated-with-multivisceral-resection-results-from-a-single-centre-experience
#8
Francesca Panzeri, Giovanni Marchegiani, Giuseppe Malleo, Anna Malpaga, Laura Maggino, Tiziana Marchese, Roberto Salvia, Claudio Bassi, Giovanni Butturini
PURPOSE: Tumors arising in the body/tail of the pancreas tend to be diagnosed at a more advanced stage, with a lower rate of resectability compared to disease of the head. Distal pancreatectomy (DP) associated to multivisceral resections (MVR) can represent a surgical option for selected patients with advanced tumors. METHODS: We retrospectively analyzed data of patients who underwent DP associated with MVR at our Institution over a 9-year period, and compared them to standard DP...
October 27, 2016: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/27751257/acquired-discrete-subaortic-stenosis-late-after-mitral-valve-replacement
#9
Jagdish C Mohan, Madhu Shukla, Vishwas Mohan, Arvind Sethi
Although acquired left ventricular outflow obstruction has been reported in a variety of conditions, there are scant reports of its occurrence following mitral valve replacement (MVR). This study describes two female patients, who developed severe discrete subaortic stenosis, five years following MVR. In both cases, the mitral valve was replaced by a porcine Carpentier-Edwards 27-mm bioprosthesis with preservation of mitral valve leaflets. The risk of very late left ventricular outflow tract obstruction after bio-prosthetic MVR with preservation of subvalvular apparatus needs to be kept in mind in symptomatic patients...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27747034/surgical-management-of-very-late-paravalvular-leaks-after-mitral-valve-replacement-a-single-institutional-experience
#10
Philip Y K Pang, Jiasi Zhu, Yoong Kong Sin, Yeow Leng Chua
Most mitral paravalvular leaks (PVLs) occur during the first year after mitral valve replacement (MVR). This report describes the surgical management of 6 patients who developed very late mitral PVLs. The median interval between MVR and initial diagnosis of PVL was 16.5 years. All patients presented with congestive cardiac failure and haemolytic anaemia. The median EuroSCORE II was 9.5%. Two patients (33%) had failed attempts at transcatheter closure. Five patients underwent suture repair of the PVL. One patient underwent MVR after removal of the previous prosthesis...
September 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27738481/prognostic-importance-of-exercise-brain-natriuretic-peptide-in-asymptomatic-chronic-organic-severe-mitral-regurgitation-an-observational-study
#11
Santosh Kumar Sinha, Shalini Garg, Ramesh Thakur, Vinay Krishna, Karandeep Singh, Mohit Sachan, Amit Goel, Mahamdula Razi, Umeshwar Pandey, Chandra Mohan Varma
BACKGROUND: The optimal timing of surgery in patients with chronic organic severe mitral regurgitation (MR) continues to be debated, especially for those who are asymptomatic. The aim of the study was to determine independent and additive prognostic value of exercise brain natriuretic peptide (eBNP) in patients with severe asymptomatic MR and normal left ventricular ejection fraction (LVEF). METHODS: Two hundred twenty-three consecutive patients with severe MR defined by effective regurgitant orifice (ERO) area ≥ 40 mm(2) and/or residual volume ≥ 60 mL, LVEF > 60%, and normal LV end-systolic diameter < 40 mm underwent symptom limited exercise treadmill test (TMT)...
November 2016: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27733994/clinical-effect-of-left-ventricular-dysfunction-in-patients-with-mitral-stenosis-after-mitral-valve-replacement
#12
Kwon Jae Park, Jong Soo Woo, Jong Yoon Park, Jae Hwa Jung
BACKGROUND: Mitral stenosis (MS) remains one of the important heart diseases. There are many factors that influence the clinical outcomes, and little is known about how left ventricular (LV) dysfunction clinically affects the prognosis of the patient with MS after mitral valve replacement (MVR). We reviewed our clinical experiences of MVR in patients with MS who had LV dysfunction. METHODS: Between January 1991 and January 2013, 110 patients with MS who underwent MVR were analyzed and divided into two groups according to ejection fraction (EF)...
October 2016: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27733982/melt-volume-flow-rate-and-melt-flow-rate-of-kenaf-fibre-reinforced-floreon-magnesium-hydroxide-biocomposites
#13
C H Lee, S M Sapuan, J H Lee, M R Hassan
A study of the melt volume flow rate (MVR) and the melt flow rate (MFR) of kenaf fibre (KF) reinforced Floreon (FLO) and magnesium hydroxide (MH) biocomposites under different temperatures (160-180 °C) and weight loadings (2.16, 5, 10 kg) is presented in this paper. FLO has the lowest values of MFR and MVR. The increment of the melt flow properties (MVR and MFR) has been found for KF or MH insertion due to the hydrolytic degradation of the polylactic acid in FLO. Deterioration of the entanglement density at high temperature, shear thinning and wall slip velocity were the possible causes for the higher melt flow properties...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27668230/mitral-valve-replacement-in-a-dialysis-dependent-patient
#14
Ansheng Mo, Zhihu Tao, Zhiqiang Feng, Xiaoping Yang, Jun Wu
Patients with end-stage renal disease have a higher risk of morbidity and mortality than those without end-stage renal disease in cardiovascular surgery. Poor outcomes are especially found in patients who undergo valve surgery. We report successful mitral valve replacement (MVR) in a dialysis-dependent patient. The patient recovered well at postoperation and had the complication of anticoagulation at follow-up. Based on this successful case, we believe that myocardial protection, prevention of infection, nutritional support, and close monitoring of blood coagulation function are important in dialysis-dependent patients undergoing valve replacement...
August 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27663607/permanent-his-bundle-pacing-in-patients-with-prosthetic-cardiac-valves
#15
Parikshit S Sharma, Faiz A Subzposh, Kenneth A Ellenbogen, Pugazhendhi Vijayaraman
BACKGROUND: Conduction disease is not uncommon after prosthetic valve (PV) surgery. The feasibility of His-bundle pacing (HBP) in this patient population is not well studied. OBJECTIVE: The purpose of this study was to report our experience with permanent HBP in patients undergoing pacemaker implantation after PV surgery. METHODS: Permanent HBP was attempted in patients with AV conduction disease after PV surgery referred for pacemaker implantation...
September 20, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27623017/surgery-for-mitral-regurgitation-in-patients-with-aortic-root-aneurysm-transaortic-or-transseptal-approach
#16
Wen-Jian Jiang, Wei-Guo Ma, Xiao-Long Wang, Yu-Yong Liu, Jun-Ming Zhu, Li-Zhong Sun, Hong-Jia Zhang
OBJECTIVE: Mitral regurgitation is common in patients with aortic root aneurysm. Mitral valve repair (MVP) or replacement (MVR) can be performed for these patients through either a transverse aortotomy (TA) or transseptal approach (TS). This study sought to compare the early outcomes of mitral valve surgery through the TA and TS approaches and decide which is optimal for this subset of patients. METHODS: Between March 2013 and April 2015, we operated on 99 patients (81 males, 81...
November 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27610249/severe-bioprosthetic-mitral-valve-stenosis-and-heart-failure-in-a-young-woman-with-systemic-lupus-erythematosus
#17
Siddharth Wartak, Isaac Akkad, Adnan Sadiq, Gregory Crooke, Manfred Moskovits, Robert Frankel, Gerald Hollander, Jacob Shani
A 23-year-old African American woman with a past medical history of systemic lupus erythematous (SLE), secondary hypertension, and end stage renal disease (ESRD) on hemodialysis for eight years was stable until she developed symptomatic severe mitral regurgitation with preserved ejection fraction. She underwent a bioprosthetic mitral valve replacement (MVR) at outside hospital. However, within a year of her surgery, she presented to our hospital with NYHA class IV symptoms. She was treated for heart failure but in view of her persistent symptoms and low EF was considered for heart and kidney transplant...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27603176/effect-of-intracanal-irrigants-on-bond-strength-of-fiber-posts-cemented-with-a-self-adhesive-resin-cement
#18
M S Barreto, R A Rosa, V G Seballos, E Machado, L F Valandro, O B Kaizer, Mvr Só, Cas Bier
OBJECTIVE: The aim of this study was to evaluate the effect of five intracanal irrigants on bond strength of fiber posts cemented with newer self-adhesive resin cement. METHODS: A total of 60 extracted, single-rooted human premolars, sectioned at 14 mm, were prepared with the ProTaper Universal system with a size F3 instrument and filled with an F3 master cone and AH Plus. The root canal filling was partially removed, leaving 4 mm of apical gutta-percha. Specimens were randomly assigned to five groups (n=12), according to the solution used for dentin surface treatment before fiber post cementation, as follows: EDTA 17% (EDTA); QMix (QM); SmearClear (SC); 2...
September 7, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27565947/match-and-mismatch-between-opening-area-and-resistance-in-mild-and-moderate-rheumatic-mitral-stenosis
#19
Ibtesam Ibrahim El-Dosouky
BACKGROUND: Mitral valve resistance (MVR) is a hemodynamic consequence of mitral stenosis (MS), but it has no clear threshold with a shortage of data to be reliable. We aimed to investigate match and mismatch between opening area and resistance especially in patients with moderate and mild MS. METHODS: This study comprised 88 patients with moderate and mild rheumatic MS. Transthoracic echocardiographic study estimated the following: mitral valve area (MVA) by both planimetry (2D) and pressure half-time (PHT), mitral valve score (MVS), mean transmitral pressure gradient (MPG), diastolic filling time (DFT), left ventricular out flow tract diameter (LVOTd) and velocity-time integral (LVOTvti), and MVR = MPG/aortic flow ratio [(LVOTd) (LVOTvti)/DFT] in dynes·s/cm(5) ...
August 26, 2016: Echocardiography
https://www.readbyqxmd.com/read/27526360/mid-term-results-of-mitral-valve-repair-for-ischemic-mitral-regurgitation-with-etlogix-ring-a-single-center-study
#20
Salvatore Campisi, Jean F Fuzellier, Benjamain Haber, Jean P Favre, Antoine Gerbay, Marco Vola
BACKGROUND: Ischemic mitral regurgitation (IMR) is a common complication of coronary artery disease and represents an independent predictor of mortality. In the IMR the pattern of mitral valve annular dilatation is asymmetrical: this can explain the long-term incidence of recurrent mitral regurgitation after surgical annular size reduction with a symmetrical ring. The aim of this study is to analyze early and mid-term results of mitral valve repair (MVR) with the CMA IMR ETlogix ring, specifically developed for the surgical correction of IMR...
November 1, 2016: International Journal of Cardiology
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