keyword
MENU ▼
Read by QxMD icon Read
search

Aortic pathology

keyword
https://www.readbyqxmd.com/read/28227728/comparison-between-users-of-a-new-methodology-for-heart-sound-auscultation
#1
Ana Castro, Pedro Gomes, Sandra S Mattos, Miguel T Coimbra, Ana Castro, Pedro Gomes, Sandra S Mattos, Miguel T Coimbra, Ana Castro, Sandra S Mattos, Pedro Gomes, Miguel Y Coimbra
Auscultation is a routine exam and the first line of screening in heart pathologies. The objective of this study was to assess if using a new data collection system, the DigiScope Collector, with a guided and automatic annotation of heart auscultation, different levels of expertise/experience users could collect similar digital auscultations. Data were collected within the Heart Caravan Initiative (Paraíba, Brasil). Patients were divided into two study groups: Group 1 evaluated by a third year medical student (User 1), and an experienced nurse (User 2); Group 2 evaluated by User 2 and an Information Technology professional (User 3)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227425/mechanical-performances-of-endovascular-aneurysm-repair-strategies-with-main-aortic-and-chimney-grafts
#2
Wei-Ling Chen, Bing-Feng Huang, Ming-Long Yeh, Chung-Dann Kan, Wei-Ling Chen, Bing-Feng Huang, Ming-Long Yeh, Chung-Dann Kan, Ming-Long Yeh, Bing-Feng Huang, Chung-Dann Kan, Wei-Ling Chen
The use of endovascular aneurysm repair (EVAR) strategies for the treatment of complex aortic pathologies is a major area of investigation in modern surgery. EVAR strategies using fenestrated or branched devices provide alternatives to open surgery for patients with aortic pathologies with visceral branch involvement, but their applications have some major limitations. To extend endovascular repair to patients whose anatomy is unfit for branched or fenestrated stent grafts or open repair, parallel graft techniques using chimney grafts (CGs) have been proposed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226030/a-novel-model-to-estimate-lymph-node-metastasis-in-endometrial-cancer-patients
#3
Cristina Anton, Alexandre Silva E Silva, Edmund Chada Baracat, Nasuh Utku Dogan, Christhardt Köhler, Jesus Paula Carvalho, Giovanni Mastrantonio di Favero
OBJECTIVES: To evaluate the postoperative pathological characteristics of hysterectomy specimens, preoperative cancer antigen (CA)-125 levels and imaging modalities in patients with endometrial cancer and to build a risk matrix model to identify and recruit patients for retroperitoneal lymphadenectomy. METHODS: A total of 405 patients undergoing surgical treatment for endometrial cancer were retrospectively reviewed and analyzed. Clinical (age and body mass index), laboratory (CA-125), radiological (lymph node evaluation), and pathological (tumour size, grade, lymphovascular space invasion, lymph node metastasis, and myometrial invasion) parameters were used to test the ability to predict lymph node metastasis...
January 1, 2017: Clinics
https://www.readbyqxmd.com/read/28223477/znf307-zinc-finger-protein-307-acts-as-a-negative-regulator-of-pressure-overload-induced-cardiac-hypertrophy
#4
Chang-Jiang Yu, Chen Liang, Yu-Xia Li, Qing-Qing Hu, Wei-Wan Zheng, Na Niu, Xu Yang, Zi-Rui Wang, Xiao-Di Yu, Bao-Long Zhang, Bin-Lin Song, Zhi-Ren Zhang
Pathological cardiac hypertrophy is a key risk factor for heart failure. We found that the protein expression levels of the ZNF307 (zinc finger protein 307) were significantly increased in heart samples from both human patients with dilated cardiomyopathy and mice subjected to aortic banding. Therefore, we aimed to elucidate the role of ZNF307 in the development of cardiac hypertrophy and to explore the signal transduction events that mediate the effect of ZNF307 on cardiac hypertrophy, using cardiac-specific ZNF307 transgenic (ZNF307-TG) mice and ZNF307 global knockout (ZNF307-KO) mice...
February 21, 2017: Hypertension
https://www.readbyqxmd.com/read/28221991/detecting-clinically-meaningful-shape-clusters-in-medical-image-data-metrics-analysis-for-hierarchical-clustering-applied-to-healthy-and-pathological-aortic-arches
#5
Jan L Bruse, Maria A Zuluaga, Abbas Khushnood, Kristin McLeod, Hopewell N Ntsinjana, Tain-Yen Hsia, Maxime Sermesant, Xavier Pennec, Andrew M Taylor, Silvia Schievano
OBJECTIVE: Today's growing medical image databases call for novel processing tools to structure the bulk of data and extract clinically relevant information. Unsupervised hierarchical clustering may reveal clusters within anatomical shape data of patient populations as required for modern Precision Medicine strategies. Few studies have applied hierarchical clustering techniques to three-dimensional patient shape data and results depend heavily on the chosen clustering distance metrics and linkage functions...
February 16, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28219917/isosorbide-dinitrate-with-or-without-hydralazine-does-not-reduce-wave-reflections-left-ventricular-hypertrophy-or-myocardial-fibrosis-in-patients-with-heart-failure-with-preserved-ejection-fraction
#6
Payman Zamani, Scott Akers, Haideliza Soto-Calderon, Melissa Beraun, Maheswara R Koppula, Swapna Varakantam, Deepa Rawat, Prithvi Shiva-Kumar, Philip G Haines, Jesse Chittams, Raymond R Townsend, Walter R Witschey, Patrick Segers, Julio A Chirinos
BACKGROUND: Wave reflections, which are increased in patients with heart failure with preserved ejection fraction, impair diastolic function and promote pathologic myocardial remodeling. Organic nitrates reduce wave reflections acutely, but whether this is sustained chronically or affected by hydralazine coadministration is unknown. METHODS AND RESULTS: We randomized 44 patients with heart failure with preserved ejection fraction in a double-blinded fashion to isosorbide dinitrate (ISDN; n=13), ISDN+hydralazine (ISDN+hydral; n=15), or placebo (n=16) for 6 months...
February 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28219557/total-endovascular-repair-of-post-dissection-aortic-arch-aneurysm-with-chimney-technique
#7
Wei-Tao Liang, Su Wang, Jian Zhou, Chen-Jun Han, Qiang Liu, Xiao-Yun Wu, Wang-Fu Zang
Open surgery remains the standard procedure for treatment of aortic arch pathologies. However, total endovascular repair can be a safe option for patients who are poor candidates for surgery because of compromised physiology. We report the case of a 63-year-old man with a post-dissection aortic arch aneurysm. We repaired the aneurysm using thoracic endovascular aortic repair (TEVAR) and used the chimney technique to reconstruct the supra-aortic branches. The patient is doing well after 12-month follow-up, demonstrating that TEVAR with the chimney technique can be used successfully for the treatment of post-dissection arch aneurysm...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28216363/durable-outcomes-of-thoracic-endovascular-aortic-repair-with-zenith-tx1-and-tx2-devices
#8
Jocelyn M Beach, Yuki Kuramochi, Corey Brier, Eric E Roselli, Matthew J Eagleton
OBJECTIVE: Long-term data regarding the safety and durability of thoracic endovascular aortic repair (TEVAR) are limited. The study objective was to evaluate the long-term outcomes of TEVAR in high-risk patients with descending thoracic aortic pathology. METHODS: High-risk patients were treated with thoracic endografts (2001-2011) under a prospective, physician-sponsored, investigational device exemption trial. Three-dimensional reconstructions and measurements were performed on computed tomography scans acquired before discharge, at 1, 6, and 12 months, and then yearly thereafter...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216353/left-subclavian-artery-revascularization-in-zone-2-thoracic-endovascular-aortic-repair-is-associated-with-lower-stroke-risk-across-all-aortic-diseases
#9
Rhiannon J Bradshaw, S Sadie Ahanchi, Obie Powell, Sebastian Larion, Colin Brandt, Michael C Soult, Jean M Panneton
BACKGROUND: The best management strategy for the left subclavian artery (LSA) in pathologic processes of the aorta requiring zone 2 thoracic endovascular aortic repair (TEVAR) remains controversial. We compared LSA coverage with or without revascularization as well as the different means of LSA revascularization. METHODS: A retrospective chart review was conducted of patients with any aortic diseases who underwent zone 2 TEVAR deployment from 2007 to 2014. Primary end points included 30-day stroke and 30-day spinal cord injury (SCI)...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28213772/the-effect-of-purinergic-signaling-via-the-p2y11-receptor-on-vascular-function-in-a-rat-model-of-acute-inflammation
#10
Maria D Dănilă, Andreea Privistirescu, Oana M Duicu, Corina D Rațiu, Denis Angoulvant, Danina M Muntean, Adrian Sturza
There is a growing body of evidence pointing to the role of purinergic signaling in the development and progression of various conditions that have inflammation as a common pathogenetic denominator. The aim of the present study was to assess the involvement of P2Y11 purinergic receptors in the regulation of vascular function in aortic segments obtained using an experimental model of acute inflammation, the lipopolysaccharide (LPS, 8 mg/kg, i.p)-treated rats. Twelve hours after LPS administration, thoracic aortas were isolated and used for studies of vascular reactivity in the organ bath and for the measurement of reactive oxygen species (ROS) generation, respectively...
February 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28208829/calcium-signaling-in-interstitial-cells-focus-on-telocytes
#11
REVIEW
Beatrice Mihaela Radu, Adela Banciu, Daniel Dumitru Banciu, Mihai Radu, Dragos Cretoiu, Sanda Maria Cretoiu
In this review, we describe the current knowledge on calcium signaling pathways in interstitial cells with a special focus on interstitial cells of Cajal (ICCs), interstitial Cajal-like cells (ICLCs), and telocytes. In detail, we present the generation of Ca(2+) oscillations, the inositol triphosphate (IP₃)/Ca(2+) signaling pathway and modulation exerted by cytokines and vasoactive agents on calcium signaling in interstitial cells. We discuss the physiology and alterations of calcium signaling in interstitial cells, and in particular in telocytes...
February 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28203542/robotic-trans-atrial-and-trans-mitral-ventricular-septal-resection
#12
REVIEW
W Randolph Chitwood
Localized ventricular septal hypertrophy, also known as idiopathic hypertrophic subaortic stenosis or idiopathic hypertrophic subaortic septal obstruction (IHSS), can create severe ventricular outflow obstruction. This often results in a high sub-aortic pressure gradient with potentially lethal symptoms. In 1960, Braunwald described the hemodynamic characteristics of IHSS, and thereafter, Morrow developed a trans-aortic approach to resect a large part of the ventricular septum, enlarging the outflow tract. The Morrow operation has remained the gold standard for surgically treating this pathology...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28203537/robotic-cardiac-surgery-in-brazil
#13
Robinson Poffo, Alisson P Toschi, Renato B Pope, Paola K Montanhesi, Ricardo S Santos, Alexandre Teruya, Dina M Hatanaka, Gabriel F Rusca, Claudio H Fischer, Marcelo C Vieira, Marcia R Makdisse
BACKGROUND: Brazil, the largest country and economy in South America, is a major driving force behind the development of new medical technologies in the region. Robotic cardiac surgery (RCS) has been evolving rapidly since 2010, when the first surgery using the DaVinci(®) robotic system was performed in Latin America. The aim of this article is to evaluate short and mid-term results in patients undergoing robotic cardiac surgery in Brazil. METHODS: From March 2010 to December 2015, 39 consecutive patients underwent robotic cardiac surgery...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28203419/diagnosis-of-mitral-valve-cleft-using-real-time-3-dimensional-echocardiography
#14
Xinchun Yuan, Aiyun Zhou, Li Chen, Cheng Zhang, Yan Zhang, Pan Xu
BACKGROUND: Mitral valve cleft (MVC) is the most common cause of congenital mitral insufficiency, and MVC may occur alone or in association with other congenital heart lesions. Direct suture and valvuloplasty are the major and effective treatments for mitral regurgitation (MR) caused by MVC. Therefore, it is important to determine the location and magnitude of the pathological damage due to MVC when selecting a surgical procedure for treatment. This study explored the application value of transthoracic real-time 3-dimensional (3D) echocardiography (RT-3DE) in the diagnosis of MVC...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28203395/the-bronchial-obstruction-as-a-complication-of-endovascular-repair-of-aortic-pseudoaneurysm-in-beh%C3%A3-et-s-disease
#15
REVIEW
Mahmut Yesin, Cüneyt Toprak, Emrah Acar, Macit Kalçık, Ahmet Erdal Taşçı, Selçuk Pala
Behçet's disease (BD) is an autoimmune disorder affecting multiple organs. Aortic pseudoaneurysm is the most catastrophic lesion in BD. This lesion type is considered as a complicated and challenging pathology by surgeons because of the technical operative difficulties and frequent recurrence. So, the endovascular repair of inflammatory aortic pseudoaneurysm has been used as an alternative to open surgical repair. It is particularly important in patients who are high-risk surgical candidates because of comorbidities...
September 2016: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/28203369/is-endovascular-treatment-with-multilayer-flow-modulator-stent-insertion-a-safe-alternative-to-open-surgery-for-high-risk-patients-with-thoracoabdominal-aortic-aneurysm
#16
Carolline Pinto, George Garas, Leanne Harling, Ara Darzi, Roberto Casula, Thanos Athanasiou
A best evidence topic in cardiothoracic and vascular surgery was written according to a structured protocol. The question addressed was whether endovascular treatment with multilayer flow modulator stents (MFMS) can be considered a safe alternative to open surgery for high-risk patients with thoracoabdominal aortic aneurysm (TAAA). Altogether 27 papers were identified using the reported search, of which 11 represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes, results, and study limitations are tabulated...
March 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28190648/prospective-validation-of-an-intraoperative-algorithm-to-guide-surgical-staging-in-early-endometrial-cancer
#17
Jason R Lefringhouse, Jeffrey W Elder, Lauren A Baldwin, Rachel W Miller, Chris P DeSimone, John R van Nagell, Luis M Samoyoa, Dava S West, Emily V Dressler, Meng Liu, Frederick R Ueland
OBJECTIVES: Prospectively validate an intraoperative surgical staging algorithm to stratify patients with early endometrial cancer by risk of lymph node metastasis. METHODS: Subjects with endometrial cancer clinically confined to the uterus were prospectively enrolled at an academic cancer center between Jan 2012 and Jun 2015. Study participants were stratified intraoperatively into two groups based on risk of nodal involvement using cell type, tumor grade, myometrial invasion, and tumor size in accordance with an established protocol from the Mayo Clinic...
February 9, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28189002/abdominal-aortic-aneurysm-an-independent-disease-to-atherosclerosis
#18
REVIEW
Bradley J Toghill, Athanasios Saratzis, Matthew J Bown
Atherosclerosis and abdominal aortic aneurysms (AAAs) are multifactorial and polygenic diseases with known environmental and genetic risk factors that contribute toward disease development. Atherosclerosis represents an important independent risk factor for AAA, as people with AAA often have atherosclerosis. Studies have shown that comorbidity is usually between ~25% and 55%, but it is still not fully known whether this association is causal or a result of common shared risk profiles. Most recent epidemiological, clinical, and biological evidence suggests that the two pathologies are more distinct than traditionally thought...
January 29, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28185804/7-cyclopentyl-5-4-phenoxyphenyl-7h-pyrrolo-2-3-d-pyrimidin-4-ylamine-inhibits-the-proliferation-and-migration-of-vascular-smooth-muscle-cells-by-suppressing-erk-and-akt-pathways
#19
Hyang-Hee Seo, Sang Woo Kim, Chang Youn Lee, Kyu Hee Lim, Jiyun Lee, Soyeon Lim, Seahyoung Lee, Ki-Chul Hwang
Excessive vascular smooth muscle cell (VSMC) proliferation and migration after vascular injury significantly contributes to the development of occlusive vascular disease. Therefore, inhibiting the proliferation and migration of VSMCs is a validated therapeutic modality for occlusive vascular disease such as atherosclerosis and restenosis. In the present study, we screened chemical compounds for their anti-proliferative effects on VSMCs using multiple approaches, such as MTT assays, wound healing assays, and trans-well migration assays...
February 6, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28184201/long-term-high-fat-diet-treatment-an-appropriate-approach-to-study-the-sex-specificity-of-the-autonomic-and-cardiovascular-responses-to-obesity-in-mice
#20
Thiago Bruder-Nascimento, Obioma J Ekeledo, Ruchi Anderson, Huy B Le, Eric J Belin de Chantemèle
Obesity-related cardiovascular disease (CVD) involves increased sympathetic activity in men and male animals. Although women exhibit increased visceral fat, metabolic disorders, inflammation and CVD with obesity, whether body weight gain affects autonomic control of cardiovascular function in females remain unknown. Due to the lack of adequate model to mimic the human pathology, this study aimed to develop a murine model, which would allow studying the sex-specificity of the response of the autonomic nervous system to obesity and identifying the origin of potential sex-differences...
2017: Frontiers in Physiology
keyword
keyword
94611
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"