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Valvular disease

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https://www.readbyqxmd.com/read/28635515/an-effective-treatment-for-heart-failure-caused-by-valvular-heart-diseases-thoracic-sympathetic-block
#1
Dan Li, Wei Liu, Dan Ma, Fengxiang Yun, Shu Li, Fengqi Liu
BACKGROUND: The pilot study is designed to investigate the effect of continuous thoracic sympathetic block (TSB) on cardiac function, reconstruction, and hemodynamic parameters in patients with heart failure resulting from valvular heart disease. METHOD: The cardiac function parameters, including left ventricle ejection fraction (LVEF), left ventricle end-diastole diameter (LVEDD), fractional shortening (FS), and N-terminal prohormone of brain natriuretic peptide (NT-proBNP), were measured in 19 patients before and after TSB treatment...
February 27, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28634703/isoperistaltic-versus-antiperistaltic-side-to-side-anastomosis-after-right-laparoscopic-hemicolectomy-for-cancer-isovanti-trial-study-protocol-for-a-randomised-clinical-trial
#2
N Ibañez, J Abrisqueta, J Luján, Q Hernández, P Parrilla
BACKGROUND: It is believed that loosing ileocecal valve is well tolerated in patients who do not have short bowel syndrome or Crohn disease. From the hypothesis of colonic peristalsis and transit is regulated by that ileocecal valvular mechanism, we try to find out if the creation of a new pseudo-valvular mechanism as antiperistaltic anastomosis could be considered after right hemicolectomy can cause any short- or long-term changes in gastrointestinal habits. PURPOSE: The purpose of the study at primary endpoint is to compare early (occurring within 30 days of surgery) and late (occurring during the follow-up) postoperative complications between both groups The purpose of the study at secondary endpoint is to compare intraoperative and postoperative events between experimental and control groups in terms of operating time, first oral tolerance day, first flatus and faeces, length of hospital stay and orocecal transit; comparing rates of gastrointestinal life quality and comparing mortality rates between both groups...
June 21, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28631699/-lower-extremity-venous-diseases-in-primary-knee-osteoarthritis
#3
O M Lesnyak, E V Zubareva, M G Goncharova, D M Maksimov
AIM: To establish a possible association between knee osteoarthritis (OA) and lower extremity venous diseases ((LEVDs) on the basis of thorough clinical and instrumental studies. SUBJECTS AND METHODS: A case-control study recruiting 40-60-year-old women was conducted. A study group included 85 women with knee OA; a control group consisted of 50 women without this condition. The patients of both groups underwent assessment of complaints and goal-directed objective examination to identify joint diseases and chronic LEVDs, knee X-ray study, and duplex scanning of the lower extremity veins...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28631145/biaxial-mechanical-properties-of-bovine-jugular-venous-valve-leaflet-tissues
#4
Hsiao-Ying Shadow Huang, Jiaqi Lu
Venous valve incompetence has been implicated in diseases ranging from chronic venous insufficiency (CVI) to intracranial venous hypertension. However, while the mechanical properties of venous valve leaflet tissues are central to CVI biomechanics and mechanobiology, neither stress-strain curves nor tangent moduli have been reported. Here, equibiaxial tensile mechanical tests were conducted to assess the tangent modulus, strength and anisotropy of venous valve leaflet tissues from bovine jugular veins. Valvular tissues were stretched to 60% strain in both the circumferential and radial directions, and leaflet tissue stress-strain curves were generated for proximal and distal valves (i...
June 19, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28631106/transthoracic-3d-echocardiographic-left-heart-chamber-quantification-in-patients-with-bicuspid-aortic-valve-disease
#5
Allard T van den Hoven, Jackie S Mc-Ghie, Raluca G Chelu, Anthonie L Duijnhouwer, Vivan J M Baggen, Adriaan Coenen, Wim B Vletter, Marcel L Dijkshoorn, Annemien E van den Bosch, Jolien W Roos-Hesselink
Integration of volumetric heart chamber quantification by 3D echocardiography into clinical practice has been hampered by several factors which a new fully automated algorithm (Left Heart Model, (LHM)) may help overcome. This study therefore aims to evaluate the feasibility and accuracy of the LHM software in quantifying left atrial and left ventricular volumes and left ventricular ejection fraction in a cohort of patients with a bicuspid aortic valve. Patients with a bicuspid aortic valve were prospectively included...
June 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28631103/transesophageal-echocardiography-in-orthotopic-liver-transplantation-a-comprehensive-intraoperative-monitoring-tool
#6
REVIEW
Luigi Vetrugno, Federico Barbariol, Umberto Baccarani, Francesco Forfori, Giovanni Volpicelli, Giorgio Della Rocca
Intraoperative transesophageal echocardiography is a minimally invasive monitoring tool that can provide real-time visual information on ventricular function and hemodynamic volume status in patients undergoing liver transplantation. The American Association for the Study of Liver Diseases states that transesophageal echocardiography should be used in all liver transplant candidates in order to assess chamber sizes, hypertrophy, systolic and diastolic function, valvular function, and left ventricle outflow tract obstruction...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28629781/position-paper-for-the-evaluation-and-management-of-oral-status-in-patients-with-valvular-disease-groupe-de-travail-valvulopathies-de-la-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-cardiologie-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-chirurgie-orale-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-parodontologie-et-d-implantologie
#7
REVIEW
Sarah Millot, Philippe Lesclous, Marie-Laure Colombier, Loredana Radoi, Clément Messeca, Mathieu Ballanger, Jean-Luc Charrier, Philippe Tramba, Stéphane Simon, Alain Berrebi, Fabien Doguet, Emmanuel Lansac, Christophe Tribouilloy, Gilbert Habib, Xavier Duval, Bernard Iung
Oral health is of particular importance in patients with heart valve diseases because of the risk of infective endocarditis. Recommendations for antibiotic prophylaxis before dental procedures have been restricted, but the modalities of oral evaluation and dental care are not detailed in guidelines. Therefore, a multidisciplinary working group reviewed the literature to propose detailed approaches for the evaluation and management of buccodental status in patients with valvular disease. Simple questions asked by a non-dental specialist may draw attention to buccodental diseases...
June 16, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28628465/cardiopulmonary-involvement-in-takayasu-s-arteritis
#8
David N Brennan, Kenneth J Warrington, Cynthia S Crowson, Jean Schmidt, Matthew J Koster
OBJECTIVES: To evaluate cardiopulmonary (CP) involvement in patients with Takayasu's arteritis (TAK) and assess the impact on disease outcomes. METHODS: A retrospective cohort of patients with newly diagnosed TAK from 1984 to 2009 was assembled. Demographics, baseline disease characteristics, relapse events, surgeries and mortality were abstracted from direct medical record review. Angiograms, advanced imaging and cardiac studies were reviewed for evidence of CP involvement...
June 12, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28623907/dna-methylation-dysregulations-in-rheumatic-heart-valve-disease
#9
Kangjun Shen, Hui Liu, Ran Jing, Jiangfeng Yi, Xinmin Zhou
BACKGROUND: The epigenetic changes underlying the development of rheumatic heart valve disease (RHVD) remain incompletely understood. Limited evidence suggests that abnormal DNA methylation might be involved in the pathogenesis of RHVD. In the present study, we evaluated the DNA methylation dysregulations from myocardial tissue in RHVD patients systematically. METHODS: Right atrial myocardial tissue obtained from rheumatic valvular patients who had undergone valve replacements surgery (n = 73) and were compared to healthy controls (n = 4)...
June 17, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28620766/phenotype-transformation-of-aortic-valve-interstitial-cells-due-to-applied-shear-stresses-within-a-microfluidic-chip
#10
Xinmei Wang, Joohyung Lee, Mir Ali, Jungkyu Kim, Carla M R Lacerda
Despite valvular heart diseases constituting a significant medical problem, the acquisition of information describing their pathophysiology remains difficult. Due to valvular size, role and location within the body, there is a need for in vitro systems that can recapitulate disease onset and progression. This study combines the development of an in vitro model and its application in the mechanical stimulation of valvular cell transformation. Specifically, porcine aortic valvular interstitial cells (PAVIC) were cultured on polydimethylsiloxane microfluidic devices with or without exposure to shear stresses...
June 15, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28617969/conditionally-targeted-deletion-of-psen1-leads-to-diastolic-heart-dysfunction
#11
Xiao-Wei Song, Qing-Ning Yuan, Ying Tang, Mi Cao, Ya-Feng Shen, Zhen-Yu Zeng, Chang-Hai Lei, SongHua Li, Xian-Xian Zhao, Yong-Ji Yang
Recently, PSEN1 has been reported to have mutations in dilated cardiomyopathy pedigrees. However, the function and mechanism of PSEN1 in cardiomyopathy remains unresolved. Here, we established 4 types of genetically modified mice to determine the function of PSEN1 in cardiac development and pathology. PSEN1 null mutation resulted in perinatal death, retardation of heart growth, ventricular dilatation, septum defects, and valvular thickening. PSEN1 knockout in adults led to decreased muscle fibers, widened sarcomere Z lines and reduced lengths of sarcomeres in cardiomyocytes...
June 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28617685/adult-congenital-heart-disease-magnitude-of-the-problem
#12
Akanksha N Thakkar, Ponraj Chinnadurai, C Huie Lin
PURPOSE OF REVIEW: To define the magnitude of problems faced by patients with adult congenital heart disease (ACHD) and to identify unmet needs for this population. RECENT FINDINGS: The ACHD population is estimated to include more than 1 million people in the United States and continues to grow at a steady rate. Owing to the decline in early mortality in this group, modern medicine is now faced by the long-term complications associated with congenital heart disease such as chronic heart failure, increased endocarditis risk, elevated burden of arrhythmias, pulmonary hypertension, valvular dysfunction, and pregnancy...
June 15, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28617294/what-is-new-in-acc-aha-2017-focused-update-of-valvular-heart-disease-guidelines
#13
EDITORIAL
Mehmet Özkan
No abstract text is available yet for this article.
June 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28616920/-association-of-gh-and-igf-1-burden-with-cardiac-structural-and-functional-changes-in-acromegaly-patients
#14
Shuo Zhang, Yi-Lin Li, Xiao-Peng Guo, Lu Gao, Yong Yao, Ren-Zhi Wang, Bing Xing
OBJECTIVES: To investigate the association of growth hormone (GH) and insulin-like growth factor (IGF-1) burden with the cardiac structural and functional changes in acromegaly patients. METHODS: Ninety-nine acromegaly patients were enrolled in this study. According to the normal range of echocardiographic parameters of Peking Union Medical College Hospital, the patients were divided into parameter normal group and abnormal group. Correlation analyses were conducted between duration of disease, mean GH, mean IGF-1, GH burden, IGF-1 burden and echocardiography data retrospectively...
May 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28616570/a-study-of-spectrum-of-rheumatic-heart-disease-in-a-tertiary-care-hospital-in-central-nepal
#15
S Laudari, G Subramanyam
BACKGROUND AND AIMS: Rheumatic heart disease is one of the most common cause for heart failure and associated mortalities/morbidities in the young population in developing countries like Nepal imparting huge familial, social and manpower burden. MATERIALS AND METHODS: This is a hospital based descriptive cross-sectional study during June 2014 to April 2016 over a period of 22 months at College of Medical Sciences-Bharatpur including 235 patients with clinical and/or echocardiographic evidence of definite rheumatic heart disease...
June 2017: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28602369/heart-failure-complicating-acute-mtyocardial-infarction
#16
REVIEW
Wilbert S Aronow
Factors predisposing the older person with acute myocardial infarction (MI) to develop heart failure (HF) include an increased prevalence of MI, multivessel coronary artery disease, decreased left ventricular (LV) contractile reserve, impairment of LV diastolic relaxation, increased hypertension, LV hypertrophy, diabetes mellitus, valvular heart disease, and renal insufficiency. HF associated with acute MI should be treated with a loop diuretic. The use of nitrates, angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, aldosterone antagonists, beta-blockers, digoxin, and positive inotropic drugs; treatment of arrhythmias and mechanical complications; and indications for use of implantable cardioverter-defibrillators and cardiac resynchronization is discussed...
July 2017: Heart Failure Clinics
https://www.readbyqxmd.com/read/28601321/lysophosphatidylcholine-activates-the-akt-pathway-to-upregulate-extracellular-matrix-protein-production-in-human-aortic-valve-cells
#17
Hui Cheng, Qingzhou Yao, Rui Song, Yufeng Zhai, Wei Wang, David A Fullerton, Xianzhong Meng
BACKGROUND: Overproduction of extracellular matrix (ECM) protein by aortic valve interstitial cells (AVICs) plays an important role in valvular sclerosis (thickening) associated with the early pathobiology of aortic stenosis. Accumulation of oxidized low-density lipoprotein (oxLDL) is observed in sclerotic aortic valve and may have a mechanistic role in valvular disease progression. Lysophosphatidylcholine (LysoPC) is a component of oxLDL and has multiple biological activities. This study was to test the hypothesis that oxLDL and LysoPC upregulate ECM protein production in human AVICs...
June 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28600091/transcatheter-aortic-valve-replacement-and-mitraclip-to-reverse-heart-failure
#18
REVIEW
Sukhdeep Basra, Molly Szerlip
Valvular heart diseases such as aortic stenosis and mitral regurgitation are often associated with heart failure, which in turn increases patients' Surgical Thoracic Society (STS) score. A high STS score means the patient is high risk for surgical aortic valve replacement and mitral valve repair/replacement. Transcatheter aortic valve replacement and percutaneous mitral valve repair offer a minimally invasive alternative for the treatment of valvular heart disease in patients with severe heart failure. We aim to review the current evidence on the safety, efficacy, and outcomes of these devices in patients with severe heart failure...
July 2017: Interventional cardiology clinics
https://www.readbyqxmd.com/read/28600087/invasive-hemodynamics-of-valvular-heart-disease
#19
REVIEW
Michele Pighi, Anita W Asgar
In the current era, diagnosis and follow-up of valvular heart disease is performed noninvasively using echocardiography. In some cases, the results of echocardiographic evaluation are inconclusive or discrepant with the patient's clinical symptoms. In such cases, a well-planned and executed cardiac catheterization is invaluable to clarify the clinical dilemma and assist in planning further management. This article reviews the indications, technique, and interpretation of cardiac catheterization in the setting of valvular stenosis and regurgitation...
July 2017: Interventional cardiology clinics
https://www.readbyqxmd.com/read/28596302/carcinoid-heart-disease
#20
REVIEW
Saamir A Hassan, Jose Banchs, Cezar Iliescu, Arvind Dasari, Juan Lopez-Mattei, Syed Wamique Yusuf
Rare neuroendocrine tumours (NETs) that most commonly arise in the gastrointestinal tract can lead to carcinoid syndrome and carcinoid heart disease. Patients with carcinoid syndrome present with vasomotor changes, hypermotility of the gastrointestinal system, hypotension and bronchospasm. Medical therapy for carcinoid syndrome, typically with somatostatin analogues, can help control symptoms, inhibit tumour progression and prolong survival. Carcinoid heart disease occurs in more than 50% of these patients and is the initial presentation of carcinoid syndrome in up to 20% of patients...
June 8, 2017: Heart: Official Journal of the British Cardiac Society
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