keyword
MENU ▼
Read by QxMD icon Read
search

Bav

keyword
https://www.readbyqxmd.com/read/29149323/should-the-dilated-ascending-aorta-be-repaired-at-the-time-of-bicuspid-aortic-valve-replacement
#1
Tsuyoshi Kaneko, Prem Shekar, Vladimir Ivkovic, Nicholas T Longford, Chuan-Chin Huang, Martin I Sigurdsson, Robert C Neely, Maroun Yammine, Julius I Ejilofor, Vanessa Montiero Vieira, Jasmine T Shahram, Karam M Habchi, Gregory W Malzberg, Peter S Martin, Jordan Bloom, Eric M Isselbacher, J Daniel Muehlschlegel, Thoralf M Sundt, Simon C Body
OBJECTIVES: Bicuspid aortic valve (BAV) is the most common congenital valvular abnormality and frequently presents with accelerated calcific aortic valve disease, requiring aortic valve replacement (AVR) and thoracic aortic aneurysm and dissection. Supporting evidence for Association Guidelines of aortic dimensions for aortic resection is sparse. We sought to determine whether concurrent repair of dilated or aneurysmal aortic disease during AVR in patients with BAV substantially improves morbidity and mortality outcomes...
November 14, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29147966/polyamine-concentration-is-increased-in-thoracic-ascending-aorta-of-patients-with-bicuspid-aortic-valve
#2
Amalia Forte, Mario Grossi, Ciro Bancone, Marilena Cipollaro, Marisa De Feo, Per Hellstrand, Lo Persson, Bengt-Olof Nilsson, Alessandro Della Corte
Polyamines are cationic molecules synthesized via a highly regulated pathway, obtained from the diet or produced by the gut microbiota. They are involved in general molecular and cellular phenomena that play a role also in vascular disease. Bicuspid aortic valve (BAV) is a congenital malformation associated to a greater risk of thoracic ascending aorta (TAA) aneurysm, whose pathogenesis is not yet well understood. We focused on differential analysis of key members of polyamine pathway and on polyamine concentration in non-dilated TAA samples from patients with either stenotic tricuspid aortic valve (TAV) or BAV (diameter ≤ 45 mm), vs...
November 17, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29143280/genome-sequencing-and-phylogenetic-analysis-of-banna-virus-genus-seadornavirus-family-reoviridae-isolated-from-culicoides
#3
Song Song, Yuanyuan Li, Shihong Fu, Wenwen Lei, Xiaofang Guo, Yun Feng, Xiaoyan Gao, Xiaolong Li, Zhonghua Yang, Ziqian Xu, Ying He, Huanyu Wang, Hongning Zhou, Bin Wang, Xiaoqing Lu, Guodong Liang
In an investigation of blood-sucking insects and arboviruses, a virus (YN12243) was isolated from Culicoides samples collected in the Sino-Burmese border region of Yunnan Province, China. The virus caused cytopathic effect (CPE) in C6/36 cells and passaged stably. Polyacrylamide gel analysis showed that the genome of YN12243 was composed of 12 segments of double-stranded RNA (dsRNA), with a distribution pattern of 6-6. The nucleotide and amino acid sequences of the coding region (1‒12 segments) were 17,803 bp and 5,925 amino acids in length, respectively...
October 26, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/29134238/a-comparison-of-anterograde-versus-retrograde-approaches-for-neonatal-balloon-aortic-valvuloplasty
#4
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/29122274/frequency-and-significance-of-intravascular-hemolysis-before-and-after-transcatheter-aortic-valve-implantation-in-patients-with-severe-aortic-stenosis
#5
Tsung-Yu Ko, Mao-Shin Lin, Lung-Chun Lin, Ying-Ju Liu, Chih-Fan Yeh, Ching-Chang Huang, Ying-Hsien Chen, Yih-Sharng Chen, Hsien-Li Kao
Intravascular hemolysis (IVH) has been identified in patients with surgical prosthetic valves, but few have been reported after transcatheter aortic valve implantation (TAVI). We conducted a prospective analysis of 64 TAVI patients. The hemolysis profiles were collected at baseline and 6 months after TAVI. The echocardiography was performed at baseline and 6 months after TAVI. There are 14 patients (21.9%) with IVH before and 24(37.5%) after TAVI. The serum haptoglobin values before and 6 months after TAVI are 126...
October 10, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29098290/fluid-structure-interaction-models-of-bicuspid-aortic-valves-the-effects-of-non-fused-cusp-angles
#6
Karin Lavon, Rotem Halevi, Gil Marom, Sagit Ben Zekry, Ashraf Hamdan, Hans Joachim Schäfers, Ehud Raanani, Rami Haj-Ali
Bicuspid aortic valve (BAV) is the most common type of congenital heart disease, occurring in 0.5-2% of the population, where the valve has only two rather than the three normal cusps. Valvular pathologies, such as aortic regurgitation and aortic stenosis, are associated with BAVs, thereby increasing the need for a better understanding of BAV kinematics and geometrical characteristics. The aim of this study is to investigate the influence of the non-fused cusp (NFC) angle in BAV type-1 configuration on the valve's structural and hemodynamic performance...
November 2, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29095713/bicuspid-aortic-valve-associated-aortopathy-update-on-biomarkers
#7
Ashna K Maredia, Steven C Greenway, Subodh Verma, Paul W M Fedak
PURPOSE OF REVIEW: Bicuspid aortic valve (BAV)-associated aortopathy is common and its progression for individual patients is difficult to predict. The present review aims to identify recent developments using biomarkers for the determination of risk and progression of disease in patients with BAV aortopathy. RECENT FINDINGS: Novel rare genetic variants and epigenetic methylation signatures affecting non-cytosine phosphate guanine (non-CpG) and CpG sites, nicotinamide phosphoribosyltransferase and Sod expression may lead to improved prediction of the aortopathy phenotype...
October 31, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29093270/notch1-haploinsufficiency-causes-ascending-aortic-aneurysms-in-mice
#8
Sara N Koenig, Stephanie LaHaye, James D Feller, Patrick Rowland, Kan N Hor, Aaron J Trask, Paul Ml Janssen, Freddy Radtke, Brenda Lilly, Vidu Garg
An ascending aortic aneurysm (AscAA) is a life-threatening disease whose molecular basis is poorly understood. Mutations in NOTCH1 have been linked to bicuspid aortic valve (BAV), which is associated with AscAA. Here, we describe a potentially novel role for Notch1 in AscAA. We found that Notch1 haploinsufficiency exacerbated the aneurysmal aortic root dilation seen in the Marfan syndrome mouse model and that heterozygous deletion of Notch1 in the second heart field (SHF) lineage recapitulated this exacerbated phenotype...
November 2, 2017: JCI Insight
https://www.readbyqxmd.com/read/29092111/prevalence-of-bicuspid-aortic-valve-in-chinese-patients-with-aortic-valve-disease-a-systematic-review
#9
Xu Wang, Wei Wang
BACKGROUND: The aim of this systematic review was to assess the incidence of bicuspid aortic valve (BAV) in Chinese patients with aortic valve disease. METHODS: Articles published between January 2000 and January 2015 were retrieved, and those reporting numbers of BAVs were selected. Data relating to congenital BAV and rheumatic lesions with functional BAV that were available for analysis were also collected. RESULTS: A total of 4,070 articles (3,538 in Chinese, 532 in English) was retrieved, among which 3,954 were excluded and 116 were selected...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29083983/investigation-on-mosquito-borne-viruses-at-lancang-river-and-nu-river-watersheds-in-southwestern-china
#10
Lingli Li, Xiaofang Guo, Qiumin Zhao, Yigang Tong, Hang Fan, Qiang Sun, Shaozhen Xing, Hongning Zhou, Jiusong Zhang
During 2007 and 2010, an extensive entomological survey was performed to assess the distribution of mosquitoes and mosquito-borne arboviruses at Lancang River and Nu River watersheds in southwestern China. A total of 20,450 mosquitoes consisting 20 species was trapped and submitted 261 pools according to species and location. Culex tritaeniorhynchus and Anopheles sinensis were the most abundant species. Eighty-seven isolates representing 11 virus species in 8 genera were obtained from 6 mosquito species. The new isolates were identified as Getah virus (GETV), Japanese encephalitis virus (JEV), Yunnan Culex-related flavivirus (YNCxFV), Yunnan Aedes-related flavivirus (YNAeFV), Banna virus (BAV), Yunnan orbivirus (YUOV), Banna orbivirus (BAOV), Yunnan totivirus (YNToV), Nam Dinh virus (NDiV), Menghai rhabdovirus (MRV), and Anopheles minimus iridovirus (AMIV)...
October 30, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29066082/performance-of-a-simplified-dichotomous-phenotypic-classification-of-bicuspid-aortic-valve-to-predict-type-of-valvulopathy-and-combined-aortopathy
#11
Byung Joo Sun, Sahmin Lee, Jeong Yoon Jang, Osung Kwon, Jae Seok Bae, Ji Hye Lee, Dae-Hee Kim, Sung-Ho Jung, Jong-Min Song, Duk-Hyun Kang, Cheol Hyun Chung, Jae-Kwan Song
BACKGROUND: A simplified classification of bicuspid aortic valve (BAV) morphology using only the orientation of fused cusps was recently proposed. The aim of this study was to test whether it is useful for showing an association with the type of valvulopathy or aortopathy. METHODS: BAV phenotype was retrospectively classified in 681 patients (mean age, 59 ± 12 years; 424 men) who underwent aortic valve surgery. Each BAV was classified using both dichotomous (right and left coronary cusp fusion [CCF] vs mixed cusp fusion [MCF]) and conventional methods, and its association with the dominant valvulopathy (aortic stenosis [AS] vs regurgitation) and concomitant aortic surgery was analyzed...
October 20, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29058107/zika-virus-isolated-from-mosquitoes-a-field-and-laboratory-investigation-in-china-2016
#12
Shihong Fu, Song Song, Hong Liu, Yuanyuan Li, Xiaolong Li, Xiaoyan Gao, Ziqian Xu, Guoping Liu, Dingming Wang, Zhenzao Tian, Jingzhu Zhou, Ying He, Wenwen Lei, Huanyu Wang, Bin Wang, Xiaoqing Lu, Guodong Liang
A field investigation of arboviruses was conducted in Dejiang, Guizhou Province in the summer of 2016. A total of 8,795 mosquitoes, belonging to four species of three genera, and 1,300 midges were collected. The mosquito samples were identified on site according to their morphology, and the pooled samples were ground and centrifuged in the laboratory. The supernatant was incubated with mosquito tissue culture cells (C6/36) and mammalian cells (BHK-21) for virus isolation. The results indicated that 40% (3,540/8,795) were Anopheles sinensis, 30% (2,700/8,795) were Culex pipiens quinquefasciatus, and 29% (2,530/8,795) were Armigeres subbalbeatus...
October 19, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/29049801/search-for-genetic-factors-in-bicuspid-aortic-valve-disease-acta2-mutations-do-not-play-a-major-role
#13
Giada Tortora, Anita Wischmeijer, Paolo Berretta, Jacopo Alfonsi, Luca Di Marco, Andrea Barbieri, Caterina Marconi, Federica Isidori, Cesare Rossi, Ornella Leone, Roberto Di Bartolomeo, Marco Seri, Davide Pacini
OBJECTIVES: Mutations in ACTA2 have been reported as a cause of familiar thoracic aortic aneurysm (TAA) with associated bicuspid aortic valve (BAV) in some individuals. Our aim is to investigate the role of ACTA2 mutations in BAV associated with TAA in 20 patients. METHODS: We recruited 20 patients who underwent surgery for BAV and TAA; clinical genetic evaluation and ACTA2 mutation analysis were performed on each patient, along with next-generation sequencing analysis of BAV-related genes...
November 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29046727/elevated-circulating-fasting-glucagon-like-peptide-1-in-surgical-patients-with-aortic-valve-disease-and-diabetes
#14
Camilla Krizhanovskii, Stelia Ntika, Christian Olsson, Per Eriksson, Anders Franco-Cereceda
BACKGROUND: Diabetes is a risk factor for peripheral, coronary, and cerebrovascular disease. In contrast, results also indicate that patients with diabetes have reduced prevalence of aortic aneurysms, although the mechanisms remain largely unknown. We hypothesize that altered endogenous secretion of the intestinal hormone glucagon-like peptide-1 (GLP-1)-previously shown to protect from aneurysm formation, and governing many of the mechanisms thought to be involved in aneurysm formation-may provide insights into the mechanisms underlying the inverse relationship of diabetes and aneurysm...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/29042101/machine-learning-phenotypic-classification-of-bicuspid-aortopathy
#15
Charles M Wojnarski, Eric E Roselli, Jay J Idrees, Yuanjia Zhu, Theresa A Carnes, Ashley M Lowry, Patrick H Collier, Brian Griffin, John Ehrlinger, Eugene H Blackstone, Lars G Svensson, Bruce W Lytle
BACKGROUND: Bicuspid aortic valves (BAV) are associated with incompletely characterized aortopathy. Our objectives were to identify distinct patterns of aortopathy using machine-learning methods and characterize their association with valve morphology and patient characteristics. METHODS: We analyzed preoperative 3-dimensional computed tomography reconstructions for 656 patients with BAV undergoing ascending aorta surgery between January 2002 and January 2014. Unsupervised partitioning around medoids was used to cluster aortic dimensions...
September 14, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29029085/impairment-of-elastic-properties-of-the-aorta-in-bicuspid-aortic-valve-relationship-between-biomolecular-and-aortic-strain-patterns
#16
Luca Longobardo, Maria Ludovica Carerj, Gabriele Pizzino, Alessandra Bitto, Maurizio Cusma Piccione, Marta Zucco, Lilia Oreto, Maria Chiara Todaro, Maria Pia Calabrò, Francesco Squadrito, Gianluca Di Bella, Giuseppe Oreto, Bijoy K Khandheria, Scipione Carerj, Concetta Zito
Aims: Bicuspid aortic valve (BAV) is associated with aortic wall alterations. We aimed to detect any correlation between aortic elasticity and genetic and biomolecular patterns of elastin. Methods and results: Forty-nine BAV patients (mean age: 38 ± 17.05) were prospectively enrolled. A blood sample was drawn for analysis of a single nucleotide polymorphism of elastin gene (ELN rs2071307) responsible for misfolding of elastin, and for the amount of elastin soluble fragments (ESF) in the plasma...
September 23, 2017: European Heart Journal Cardiovascular Imaging
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
#17
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
https://www.readbyqxmd.com/read/29029001/comparative-study-of-bicuspid-vs-tricuspid-aortic-valve-stenosis
#18
Geoffrey D Huntley, Jeremy J Thaden, Said Alsidawi, Hector I Michelena, Joseph J Maleszewski, William D Edwards, Christopher G Scott, Sorin V Pislaru, Patricia A Pellikka, Kevin L Greason, Naser M Ammash, Joseph F Malouf, Maurice Enriquez-Sarano, Vuyisile T Nkomo
Aims: To examine differences and similarities in bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV) stenosis occurring during the same age and whether any differences impact outcomes following aortic valve replacement (AVR). Methods and results: An age-matched cohort of 198 BAV stenosis and 198 TAV stenosis patients was identified from 888 consecutive patients undergoing AVR for severe AS. Mean age 68 ± 6 years; 68% male. Patients with BAV were less likely to have multiple comorbidities, as measured by the Charlson Comorbidity Index (CCI) >2 (3 vs...
October 3, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29024080/randomized-comparison-of-balloon-aortic-valvuloplasty-performed-with-or-without-rapid-cardiac-pacing-the-pacing-versus-no-pacing-pnp-study
#19
Gianni Dall'Ara, Antonio Marzocchi, Nevio Taglieri, Carolina Moretti, Giulio Rodinò, Matteo Chiarabelli, Paolo Bottoni, Cinzia Marrozzini, Maria Rita Sabattini, Maria-Letizia Bacchi-Reggiani, Claudio Rapezzi, Francesco Saia
OBJECTIVES: To compare the effectiveness and safety of balloon aortic valvuloplasty (BAV) performed with or without rapid ventricular pacing (RP). BACKGROUND: BAV technique is poorly standardized. METHODS: One hundred consecutive patients were randomly assigned 1:1 between BAV performed with or without RP. Exclusion criteria were an immediate indication for surgical or transcatheter aortic valve replacement, presentation in cardiogenic shock or pulmonary edema refractory to medical stabilization...
October 11, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29017405/outcomes-of-transcatheter-aortic-valve-replacement-for-bicuspid-aortic-stenosis-a-systematic-review-of-existing-literature
#20
Samir V Patel, Rajesh Sonani, Vikas Singh, Palak Patel, Apurva Badheka
Patients with bicuspid aortic valve (BAV) have traditionally been excluded from large randomized clinical trials involving transcatheter aortic valve replacements (TAVR). Technical enhancements, availability of new generation devices and improved outcomes have led to a marked increase in TAVR volume across the world including off label use in patients with BAV stenosis. Areas covered: In this manuscript, we have reviewed the currently available data regarding safety, efficacy, and outcomes of TAVR in patients with BAV stenosis...
October 16, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
keyword
keyword
17900
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"