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Prosthetic heart valve

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https://www.readbyqxmd.com/read/29244073/incidence-of-infective-endocarditis-among-patients-considered-at-high-risk
#1
Lauge Østergaard, Nana Valeur, Nikolaj Ihlemann, Henning Bundgaard, Gunnar Gislason, Christian Torp-Pedersen, Niels Eske Bruun, Lars Søndergaard, Lars Køber, Emil Loldrup Fosbøl
Aims: Patients with prior infective endocarditis (IE), a prosthetic heart valve, or a cyanotic congenital heart disease (CHD) are considered to be at high risk of IE by guidelines. However, knowledge is sparse on the relative risk of IE between these three groups and compared controls. Methods and results: Using Danish nationwide registries (1996-2015), we identified all patients with prior IE, a prosthetic heart valve, or a complex CHD (defined as tetralogy of Fallot, truncus arteriosus, and transposition of great arteries) as well as matched control populations...
December 12, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29240776/microbiological-profile-and-risk-factors-for-in-hospital-mortality-of-infective-endocarditis-in-tertiary-care-hospitals-of-south-vietnam
#2
Hoang M Tran, Vien T Truong, Tam M N Ngo, Quoc P V Bui, Hoang C Nguyen, Trung T Q Le, Wojciech Mazur, Eugene Chung, John M Cafardi, Khanh P N Pham, Hoang H N Duong, Thach Nguyen, Vu T Nguyen, Vinh N Pham
OBJECTIVES: We aimed to evaluate the microbiological characteristics and risk factors for mortality of infective endocarditis in two tertiary hospitals in Ho Chi Minh City, south Vietnam. MATERIALS AND METHODS: A retrospective study of 189 patients (120 men, 69 women; mean age 38 ± 18 years) with the diagnosis of probable or definite infective endocarditis (IE) according to the modified Duke Criteria admitted to The Heart Institute or Tam Duc Hospital between January 2005 and December 2014...
2017: PloS One
https://www.readbyqxmd.com/read/29234970/aortic-valve-reconstruction-using-autologous-pericardium-ozaki-procedure-for-active-infective-endocarditis-a-case-report
#3
Kimiaki Okada, Yoshito Inoue, Hirofumi Haida, Satoru Suzuki
Approximately one-third of patients with infective endocarditis require surgical treatment, but the ideal procedure that prevents infection ensures long durability and maintains quality of life remains unclear. A 21-year-old man who was diagnosed with aortic active infective endocarditis was referred to our hospital for surgical treatment. Echocardiography showed bicuspid aortic valve, severe aortic regurgitation, a large vegetation, and a paravalvular abscess. We planned to perform elective surgical treatment after antibiotic therapy; however, progression to heart failure required urgent operation...
December 12, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29234912/advanced-ct-acquisition-protocol-with-a-third-generation-dual-source-ct-scanner-and-iterative-reconstruction-technique-for-comprehensive-prosthetic-heart-valve-assessment
#4
Marguerite E Faure, Laurens E Swart, Marcel L Dijkshoorn, Jos A Bekkers, Marcel van Straten, Koen Nieman, Paul M Parizel, Gabriel P Krestin, Ricardo P J Budde
OBJECTIVES: Multidetector CT (MDCT) is a valuable tool for functional prosthetic heart valve (PHV) assessment. However, radiation exposure remains a concern. We assessed a novel CT-acquisition protocol for comprehensive PHV evaluation at limited dose. METHODS: Patients with a PHV were scanned using a third-generation dual-source CT scanner (DSCT) and iterative reconstruction technique (IR). Three acquisitions were obtained: a non-enhanced scan; a contrast-enhanced, ECG-triggered, arterial CT angiography (CTA) scan with reconstructions at each 5 % of the R-R interval; and a delayed high-pitch CTA of the entire chest...
December 12, 2017: European Radiology
https://www.readbyqxmd.com/read/29234617/transcatheter-mitral-valve-implantation-in-open-heart-surgery-an-off-label-technique
#5
Jacopo Alfonsi, Giacomo Murana, Anna Corsini, Carlo Savini, Roberto Di Bartolomeo, Davide Pacini
Extensive mitral annulus calcifications are considered a contraindication for valve surgery. We describe the case of a 76-year-old female with severe mitral and aortic stenosis associated with extensive calcifications of the heart. The patient underwent an open mitroaortic valve replacement using transcatheter aortic valve implantation with an Edwards SAPIEN XT valve (Edwards Lifesciences Corp., Irvine, CA, USA) in the mitral position. The aortic valve was replaced using a stentless valve prosthesis (LivaNova SOLO; LivaNova PLC, London, UK)...
December 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29201439/management-of-an-acute-ischemic-stroke-during-thrombolytic-treatment-in-a-pregnant-patient-with-prosthetic-valve-thrombosis
#6
Macit Kalçık, Mahmut Yesin, Emrah Bayam, Mustafa Ozan Gürsoy, Ahmet Güner, Sabahattin Gündüz, Mehmet Özkan
Prosthetic valve thrombosis (PVT) is a life-threatening complication in pregnant women with mechanical prosthetic heart valves. Thrombolytic therapy (TT) has evolved as an effective treatment alternative to surgery, which is associated with very high maternal and fetal mortality and morbidity in these patients. Acute ischemic stroke may rarely occur during TT for PVT. Here, we present a pregnant patient who was complicated with cerebral thromboembolism during TT for PVT and successfully managed with continuation of TT...
September 2017: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/29174775/novel-automated-suturing-technology-for-minimally-invasive-aortic-valve-replacements
#7
Joshua K Wong, Amber L Melvin, Juan A Siordia, Devang J Joshi, Jude S Sauer, Peter A Knight
PURPOSE: Annular suture placement during minimally invasive right anterior thoracotomy aortic valve replacements (MI-AVR) can be challenging. We present the early clinical experience with novel automated suturing technology that may reduce the technical difficulty of this operation. DESCRIPTION: The technology presented involves an automated articulating suturing device that simultaneously drives dual-curved needles through the aortic annulus to place a pledgeted horizontal mattress suture remotely; a second device with 2 straight needles places suture through the sewing cuff of a prosthetic heart valve...
November 23, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29173672/acute-valvular-heart-disease
#8
REVIEW
Varun Maheshwari, Brian Barr, Mukta Srivastava
Valvular heart disease (VHD) is a common clinical entity. Recognition of decompensated VHD is crucial to instituting appropriate workup and management. Initial evaluation focuses on hemodynamics, peripheral perfusion, volume overload, and active myocardial ischemia. Initial therapy is targeted at improving hemodynamics, fluid status, and decreasing myocardial ischemia before intervention. Echocardiography can rapidly identify VHD etiology and severity along with physical examination findings. Owing to improved survival with cardiac surgery over the past several decades, prosthetic valve dysfunction should be recognized and initial treatment understood...
February 2018: Cardiology Clinics
https://www.readbyqxmd.com/read/29166536/clinical-investigation-of-left-ventricular-pacing-using-coronary-sinus-in-patients-with-mechanical-prosthetic-tricuspid-valve-replacement
#9
Kelan Zha, Kaijun Cui, Xingbin Liu, Yuan Fang
BACKGROUND: Although transvenous right ventricular (RV) endocardial lead placement is routine practice in clinical pacing, RV inaccessibility in certain clinical situations mandates the search for other sites. HYPOTHESIS: This study is aimed to verify whether left ventricular lead through coronary sinus is safe and efficient. METHODS: Based on a retrospective analysis of a single-center series of 4 patients with inaccessibility for RV pacing, we report on the feasibility and reliability of coronary sinus (CS) pacing via left ventricular (LV) lead, which usually is used in cardiac resynchronization therapy...
November 22, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/29161405/quantifying-infective-endocarditis-risk-in-patients-with-predisposing-cardiac-conditions
#10
Martin H Thornhill, Simon Jones, Bernard Prendergast, Larry M Baddour, John B Chambers, Peter B Lockhart, Mark J Dayer
Aims: There are scant comparative data quantifying the risk of infective endocarditis (IE) and associated mortality in individuals with predisposing cardiac conditions. Methods and results: English hospital admissions for conditions associated with increased IE risk were followed for 5 years to quantify subsequent IE admissions. The 5-year risk of IE or dying during an IE admission was calculated for each condition and compared with the entire English population as a control...
November 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29148592/oral-anticoagulants-in-german-nursing-home-residents-drug-use-patterns-and-predictors-for-treatment-choice
#11
Kathrin Jobski, Falk Hoffmann, Stefan Herget-Rosenthal, Michael Dörks
AIMS: Information on utilization of oral anticoagulants (OACs) in nursing homes is scarce. This study aimed to (i) describe OAC use in German nursing home residents, (ii) examine factors influencing whether treatment is initiated with vitamin K antagonists (VKAs) or non-VKA oral anticoagulants (NOACs) and (iii) assess which conditions predict switching to NOAC instead of continuing VKA. METHODS: Using claims data (2010-2014), we studied a cohort of new nursing home residents aged ≥ 65 years receiving OAC...
November 17, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29141552/para-prosthetic-leaks-following-mitral-valve-replacement-case-analysis-on-a-20-year-period
#12
Melvin Dziubek, Charalampos Pierrakos, Louis Chebli, Helene Demanet, Ahmed Sanoussi, Pierre Wauthy
BACKGROUND: Mitral para-prosthetic leaks are rare but major complications of mitral heart valve replacements. When they must be re-operated, they are burdened with high mortality rates. We propose to review our surgical experience in terms of approach and type of operation carried out. METHODS: Demographic, preoperative, intraoperative and postoperative characteristics of 34 patients who benefited from a surgical treatment of mitral paravalvular leak at the Brugmann University Hospital between 1996 and 2016 have been gathered retrospectively...
November 9, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/29135480/mechanical-surface-area-of-prosthetic-heart-valve-adverse-clinical-impact-of-large-mechanical-valve-in-mitral-position
#13
Yang Hyun Cho, Kiick Sung, Wook Sung Kim, Jae-Hun Kim, Sung Mok Kim, Pyo Won Park
Although thromboembolic accidents are serious adverse events associated with mechanical mitral valves, there have been no studies on the clinical impact of the large mechanical surface areas (MSAs) of mechanical mitral prostheses. Between 1995 and 2010, 488 consecutive adult patients underwent isolated mechanical mitral valve replacement. We measured the MSA via three-dimensional computed tomography for each prosthesis. Mean patient age was 50.6 ± 11.1 years. The mean body surface area (BSA) and MSA index (MSAI, MSA/BSA) were 1...
November 8, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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
#14
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/29129879/transcatheter-aortic-valve-implantation-for-degenerated-19-mm-aortic-bioprosthetic-valve
#15
Kizuku Yamashita, Tomoyuki Fujita, Satsuki Fukushima, Yusuke Shimahara, Yuta Kume, Yorihiko Matsumoto, Naonori Kawamoto, Tatsuro Hitsumoto, Nobuyasu Ito, Yasuhiro Hamatani, Atsushi Okada, Hiroyuki Takahama, Makoto Amaki, Takuya Hasegawa, Yasuo Sugano, Hideaki Kanzaki, Toshihisa Anzai, Satoshi Yasuda, Junjiro Kobayashi
BACKGROUND: The valve-in-valve procedure, in which a transcatheter heart valve (THV) is implanted over a prosthetic valve, has been shown to be safe and therapeutically effective, depending on the size of the replacement valve.Methods and Results:We report 3 cases of successful valve-in-valve procedure to replace a degenerated 19-mm stented prosthetic aortic valve. Balloon-expanding THVs were implanted: 20-mm in the 1st case and 23-mm in the next 2. Aortic stenosis was almost completely resolved in all patients, who recovered promptly and without cardiac adverse events...
November 11, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29128265/atrial-flutter-has-less-left-atrial-spontaneous-contrast-and-higher-left-atrial-appendage-emptying-velocity-compared-with-atrial-fibrillation
#16
Jennifer J Huang, Sridhar Reddy, Tam H Truong, Prakash Suryanarayana, Joseph S Alpert
BACKGROUND: The risk of stroke and thromboembolism in atrial fibrillation is established. There are clear guidelines in anticoagulation management of patient's with atrial fibrillation, however, the evidence surrounding the risk of thromboembolism in patients with atrial flutter is not as clear. We hypothesized that atrial flutter would have indicators of less risk for thromboembolism compared with atrial fibrillation on transesophageal echocardiography (TEE); thereby possibly leading to a lower stroke risk...
November 8, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/29121720/incidence-predictors-and-outcomes-of-infective-endocarditis-in-a-contemporary-adult-congenital-heart-disease-population
#17
Benjamin Moore, Jacob Cao, Irina Kotchetkova, David S Celermajer
BACKGROUND: The prevalence of congenital heart disease (CHD) in the adult population is steadily increasing. A substrate of prosthetic material and residual lesions, constantly evolving as surgical techniques change over time, predispose these patients to the potentially devastating complication of infective endocarditis (IE). METHODS: We retrospectively reviewed 2935 patients in our adult CHD database for all cases of endocarditis between 1991 and 2016. Incidence, clinical course and predictors of outcomes were analysed...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29119728/a-framework-for-designing-patient-specific-bioprosthetic-heart-valves-using-immersogeometric-fluid-structure-interaction-analysis
#18
Fei Xu, Simone Morganti, Rana Zakerzadeh, David Kamensky, Ferdinando Auricchio, Alessandro Reali, Thomas J R Hughes, Michael S Sacks, Ming-Chen Hsu
Numerous studies have suggested that medical image derived computational mechanics models could be developed to reduce mortality and morbidity due to cardiovascular diseases by allowing for patient-specific surgical planning and customized medical device design. In this work, we present a novel framework for designing prosthetic heart valves using a parametric design platform and immersogeometric fluid-structure interaction (FSI) analysis. We parameterize the leaflet geometry using several key design parameters...
November 9, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29118887/a-case-of-early-prosthetic-valve-endocarditis-caused-by-staphylococcus-warneri-in-a-patient-presenting-with-congestive-heart-failure
#19
Maita S Kuvhenguhwa, Kevin O Belgrave, Sonia U Shah, Arnold S Bayer, Loren G Miller
Staphylococcus warneri, a coagulase negative staphylococcus, has been isolated in prosthetic device-related infections and has been reported as a rare cause of endocarditis. We report a case of prosthetic aortic valve S. warneri endocarditis, in which the patient lacked typical infectious signs and symptoms, instead presenting with congestive heart failure due to perforation of the valve. Providers should consider endocarditis with a low virulence pathogen such as S. warneri when a patient with a prosthetic valve presents with heart failure, even in the absence of fever, leukocytosis and other infectious symptoms...
October 2017: Cardiology Research
https://www.readbyqxmd.com/read/29107160/resumption-of-antithrombotic-agents-in-chronic-subdural-hematoma-a-systematic-review-and-meta-analysis
#20
Kevin Phan, David Abi-Hanna, Jack Kerferd, Victor M Lu, Adam A Dmytriw, Yam-Ting Ho, Jacob Fairhall, Rajesh Reddy, Peter Wilson
BACKGROUND: The clinical decision whether and when to resume antithrombotics in patients with chronic subdural hematomas (CSDH) postoperatively is limited by a lack of quality evidence exploring this topic. Our study aims to assess the available evidence of patient complication outcomes, specifically hemorrhagic and thromboembolic events, following the resumption or non-resumption of antithrombotic agents postoperatively in CSDH patients already on these agents before CSDH. METHODS: We followed recommended PRISMA guidelines for systematic reviews...
October 26, 2017: World Neurosurgery
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