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Valve therapies

Conor F Hynes, Michael D Greenberg, Shawn Sarin, Gregory D Trachiotis
Stanford Type A aortic dissection is a rapidly progressing disease process that is often fatal without emergent surgical repair. A small proportion of Type A dissections go undiagnosed in the acute phase and are found upon delayed presentation of symptoms or incidentally. These chronic lesions may have a distinct natural history that may have a better prognosis and could potentially be managed differently then those presenting acutely. The method of repair depends on location and extent of the false lumen, as well as involvement of critical structures and branch arteries...
February 2016: Aorta (Stamford, Conn.)
Jochen Reinöhl, Klaus Kaier, Holger Reinecke, Lutz Frankenstein, Andreas Zirlik, Manfred Zehender, Constantin von Zur Mühlen, Christoph Bode, Peter Stachon
OBJECTIVES: The aim of this study was to assess how the introduction of transcatheter aortic valve replacement (TAVR) has changed clinical practice and outcome in patients who have previously undergone coronary artery bypass grafting (CABG). BACKGROUND: A significant proportion of patients admitted for aortic valve replacement have previously undergone CABG and are therefore at increased operative risk in case of redo surgery. METHODS: In-hospital outcome data were analyzed from patients with or without previous CABG undergoing isolated surgical aortic valve replacement or TAVR in Germany from 2007 to 2013...
October 24, 2016: JACC. Cardiovascular Interventions
Michael B Boffa
PURPOSE OF REVIEW: Elevated plasma concentrations of lipoprotein(a) (Lp(a)) are an independent and causal risk factor for cardiovascular diseases including coronary artery disease, ischemic stroke, and calcific aortic valve stenosis. This review summarizes the rationale for Lp(a) lowering and surveys relevant clinical trial data using a variety of agents capable of lowering Lp(a). RECENT FINDINGS: Contemporary guidelines and recommendations outline populations of patients who should be screened for elevated Lp(a) and who might benefit from Lp(a) lowering...
December 2016: Current Atherosclerosis Reports
C Michael White, Elaine Nguyen
OBJECTIVE: To review the limitations of current antiarrhythmic drugs in atrial fibrillation (AF) and discuss the rationale and clinical trials supporting the use of ranolazine in AF. DATA SOURCES: MEDLINE was searched from 1980 to September 2016 using the terms ranolazine, atrial fibrillation, coronary artery bypass grafting, and valve surgery STUDY SELECTION AND DATA EXTRACTION: English-language studies and reviews assessing antiarrhythmic drugs, including ranolazine, were incorporated...
October 6, 2016: Annals of Pharmacotherapy
Mark A Groh, Ivan Diaz, Alan M Johnson, Stephen W Ely, Oliver A Binns, Gerard L Champsaur
BACKGROUND: Patients at intermediate risk (IR) according to The Society of Thoracic Surgeons risk score are today frequently oriented toward the transfemoral aortic valve replacement (TAVR) option. Our goal was to evaluate the best treatment strategies for IR patients with severe aortic stenosis. METHODS: Of a consecutive series of 1,144 surgical aortic valve replacements (AVRs) performed in our institution between 2008 and 2014, we reviewed the early and late outcomes of two different groups: a low-risk (LR) group of 470 patients, and an IR group of 620...
October 15, 2016: Annals of Thoracic Surgery
Doris Barcellona, Lara Fenu, Francesco Marongiu
Oral anticoagulant therapies with the anti-vitamin K drugs (AVK), warfarin, acenocoumarol and phenprocoumon, are employed in primary and secondary anti-thrombotic prophylaxis in patients with venous thromboembolism, atrial fibrillation and cardiac mechanical valves. However, a monitoring test such as the International Normalized Ratio (INR) is required. The periodic monitoring of this therapy entails discomfort for the patients. Telemedicine and telecare can provide significant aid in the management of this therapy allowing patients to perform the test at home or anywhere else with a portable device, i...
October 18, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
Carsten Schwencke, Klaudija Bijuklic, Taoufik Ouarrak, Edith Lubos, Wolfgang Schillinger, Björn Plicht, Holger Eggebrecht, Stephan Baldus, Gerhard Schymik, Peter Boekstegers, Rainer Hoffmann, Jochen Senges, Joachim Schofer
AIMS: The use of the MitraClip system has gained widespread acceptance for the treatment of patients with mitral regurgitation (MR) who are not suitable for the conventional surgery. This study sought to investigate the early and 1-year outcome after MitraClip therapy of patients with MR and cardiac comorbidities. METHODS AND RESULTS: Outcomes through 12-month follow-up of patients (n = 528) who underwent MitraClip implantation were obtained from the German transcatheter mitral valve interventions (TRAMI) registry...
October 17, 2016: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
Zhiying Luo, Xi Li, Mingfeng Zhu, Jie Tang, Zhi Li, Xinming Zhou, Guobao Song, Zhaoqian Liu, Honghao Zhou, Wei Zhang
BACKGROUND: The variation among patients in warfarin response complicated the management of warfarin therapy, improper therapeutic dose usually result in serious adverse events. OBJECTIVE: A two-stage extreme phenotype strategy was conducted to discover novel warfarin dose associated mutations in heart valve replacement (HVR) patients. PATIENTS/METHOD: A total of 1617 warfarin stable dose (WSD) patients were enrolled and divided randomly into two cohorts...
October 14, 2016: Journal of Thrombosis and Haemostasis: JTH
Laith Alshawabkeh, Katherine E Economy, Anne Marie Valente
Pregnancy is associated with a hypercoagulable state. Women requiring anticoagulation need careful attention throughout pregnancy and the post-partum period. The choice of anticoagulant therapy, the degree of monitoring, and the therapeutic target should be modulated by balancing the risks and the benefits to the mother and fetus. Many of the available anticoagulant agents may be used safely in pregnancy, but they are disadvantaged by competing efficacy and risks to the mother and fetus. For example, vitamin K antagonists are the most efficacious for preventing mechanical valve thrombosis, but they pose risks to the fetus...
October 18, 2016: Journal of the American College of Cardiology
Shi-Min Yuan
Fungal endocarditis is a rare and fatal condition. The Candida and Aspergillus species are the two most common etiologic fungi found responsible for fungal endocarditis. Fever and changing heart murmur are the most common clinical manifestations. Some patients may have a fever of unknown origin as the onset symptom. The diagnosis of fungal endocarditis is challenging, and diagnosis of prosthetic valve fungal endocarditis is extremely difficult. The optimum antifungal therapy still remains debatable. Treating Candida endocarditis can be difficult because the Candida species can form biofilms on native and prosthetic heart valves...
May 2016: Brazilian Journal of Cardiovascular Surgery
Lara Cusack, Cara Field, Alexa McDermott, Brandon Pogue, Tonya Clauss, Gregory Bossart, Alvin Camus
A 19-year-old male African penguin ( Spheniscus demersus ) was presented with coelomic distention after a 6-week history of lethargy and decreased appetite. Results of radiographs showed loss of coelomic detail, and ultrasound and computed tomography results revealed coelomic fluid and dilated hepatic veins. Echocardiography revealed moderate right atrial enlargement. Findings were consistent with right-sided cardiac disease. Treatment with furosemide initially reduced ascites, but the clinical condition worsened weeks later and enalapril, pimobendan, and sildenafil were added to the medical therapy...
September 2016: Journal of Avian Medicine and Surgery
Kuk Hui Son, Chang-Hyu Choi, Jae-Ik Lee, Kun Woo Kim, Ji Sung Kim, So Young Lee, Kook Yang Park, Chul Hyun Park
BACKGROUND: Guidelines for esophagogastroduodenoscopy (EGD) in the West allow the continued use of warfarin under therapeutic international normalized ratio (INR) level. In Korea, no guidelines have been issued regarding warfarin treatment before EGD. The authors surveyed Korean cardiac surgeons about how Korean cardiac surgeons handle warfarin therapy before EGD using a questionnaire. Participants were requested to make decisions regarding the continuation of warfarin therapy in two hypothetical cases...
October 2016: Korean Journal of Thoracic and Cardiovascular Surgery
Tania A Pawade, Timothy R G Cartlidge, William S A Jenkins, Philip D Adamson, Phillip Robson, Christophe Lucatelli, Edwin J R Van Beek, Bernard Prendergast, Alan R Denison, Laura Forsyth, James H F Rudd, Zahi A Fayad, Alison Fletcher, Sharon Tuck, David E Newby, Marc R Dweck
BACKGROUND: 18F-Fluoride positron emission tomography (PET) and computed tomography (CT) can measure disease activity and progression in aortic stenosis. Our objectives were to optimize the methodology, analysis, and scan-rescan reproducibility of aortic valve 18F-fluoride PET-CT imaging. METHODS AND RESULTS: Fifteen patients with aortic stenosis underwent repeated 18F-fluoride PET-CT. We compared nongated PET and noncontrast CT, with a modified approach that incorporated contrast CT and ECG-gated PET...
October 2016: Circulation. Cardiovascular Imaging
Sten Lyager Nielsen
Transcatheter mitral valve (MV) intervention has emerged as an effective treatment option for symptomatic severe mitral regurgitation (MR) in patients considered to be inoperable or at high operative risk for surgical MV surgery. In primary mitral regurgitation, surgical repair is the standard of care. Transcatheter edge-to-edge MV repair with the MitraClip system has the largest clinical experience to date, and offers a sustained clinical benefit in selected surgical high-risk patients. Surgery for secondary MR remains a challenge...
October 13, 2016: Scandinavian Cardiovascular Journal: SCJ
Lorenzo Corbetta, Ariela Tofani, Flavio Montinaro, Lucio Michieletto, Loris Ceron, Chiara Moroni, Pier Giorgio Rogasi
BACKGROUND: The poor treatment outcomes of multidrug-resistant tuberculosis (TB) and the emergence of extensively drug-resistant TB and extremely and totally drug-resistant TB highlight the urgent need for new antituberculous drugs and other adjuvant treatment approaches. OBJECTIVES: We have treated cavitary tuberculosis by the application of endobronchial one-way valves (Zephyr®; Pulmonx Inc., Redwood City, Calif., USA) to induce lobar volume reduction as an adjunct to drug treatment...
October 12, 2016: Respiration; International Review of Thoracic Diseases
Özcan Başaran, Osman Beton, Volkan Doğan, Mehmet Tekinalp, Ahmet Çağrı Aykan, Ezgi Kalaycıoğlu, İsmail Bolat, Onur Taşar, Özgen Şafak, Macit Kalçık, Mehmet Yaman, İbrahim Altun, Mustafa Özcan Soylu, Cevat Kırma, Murat Biteker
OBJECTIVE: Data regarding stroke prevention strategies in non-valvular atrial fibrillation (NVAF) are limited to vitamin K antagonists (VKAs). This study aimed to evaluate real-life stroke prevention strategies for NVAF patients in the era of non-VKA oral anticoagulants (NOACs). METHODS: We established a cross-sectional, multicenter, nationwide registry of NVAF patients. All consecutive atrial fibrillation (AF) patients and without mechanical heart valves or rheumatic mitral stenosis (but including those with any degree of mitral regurgitation) were enrolled in the ReAl-life Multicenter Survey Evaluating Stroke Prevention Strategies (RAMSES Study; ClinicalTrials...
October 2016: Anatolian Journal of Cardiology
Jason R Cuomo, Gyanendra K Sharma, Preston D Conger, Neal L Weintraub
Radiation-induced cardiovascular disease (RICVD) is the most common nonmalignant cause of morbidity and mortality among cancer survivors who have undergone mediastinal radiation therapy (RT). Cardiovascular complications include effusive or constrictive pericarditis, cardiomyopathy, valvular heart disease, and coronary/vascular disease. These are pathophysiologically distinct disease entities whose prevalence varies depending on the timing and extent of radiation exposure to the heart and great vessels. Although refinements in RT dosimetry and shielding will inevitably limit future cases of RICVD, the increasing number of long-term cancer survivors, including those treated with older higher-dose RT regimens, will ensure a steady flow of afflicted patients for the foreseeable future...
September 26, 2016: World Journal of Cardiology
Denise C Joffe, Thomas K Jones, Mark Reisman, Elizabeth Perpetua, Yuk Law, Andreas Schuler, G Burkhard Mackensen
We present the primary report of a paediatric patient who had placement of the MitraClip device for severe functional mitral regurgitation. The patient was a 14-year-old boy with symptomatic end-stage non-compaction type cardiomyopathy secondary to a mitochondrial cytopathy. He had severe mitral regurgitation, tricuspid valve regurgitation, a severely dilated LV with apical non-compaction, severe LV dysfunction and severe pulmonary hypertension. Despite optimal medical therapy he developed progressive symptoms of congestive heart failure and he was not a candidate for an assist device or cardiac transplantation...
October 10, 2016: EuroIntervention
Jitin Narula, Usha Kiran, Poonam Malhotra Kapoor, Minati Choudhury, Palleti Rajashekar, Ujjwal Kumar Chowdhary
OBJECTIVE: To evaluate the effect of autologous blood harvest (ABH)-induced volume shifts using electrical cardiometry (EC) in patients with pulmonary artery hypertension secondary to left heart disease. DESIGN: Prospective, randomized, controlled trial. SETTING: A tertiary care hospital. PARTICIPANTS: The study comprised 50 patients scheduled to undergo heart valve replacement. INTERVENTIONS: Patients were divided randomly into 2 experimental groups that were distinguished by whether ABH was performed...
July 26, 2016: Journal of Cardiothoracic and Vascular Anesthesia
Glenn J Rapsinski, Jina Makadia, Nitin Bhanot, Zaw Min
BACKGROUND: Gram-negative microorganisms are uncommon pathogens responsible for infective endocarditis. Pseudomonas mendocina, a Gram-negative water-borne and soil-borne bacterium, was first reported to cause human infection in 1992. Since then, it has rarely been reported as a human pathogen in the literature. We describe the first case of native valve infective endocarditis due to P. mendocina in the USA. CASE PRESENTATION: A 57-year-old white man presented with bilateral large leg ulcers, fever, and marked leukocytosis...
October 4, 2016: Journal of Medical Case Reports
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