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Cardiology

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https://www.readbyqxmd.com/read/28329746/genotyping-platelet-activation-and-cardiovascular-outcome-in-patients-after-percutaneous-coronary-intervention-two-pieces-of-the-puzzle-of-clopidogrel-resistance
#1
Gerasimos Siasos, Evangelos Oikonomou, Manolis Vavuranakis, Eleni Kokkou, Konstantinos Mourouzis, Sotiris Tsalamandris, Marina Zaromitidou, Stamatios Kioufis, Vasiliki Tsigkou, Spyridon Deftereos, Christodoulos Stefanadis, Dimitris Tousoulis
OBJECTIVES: Individual platelet responses to antiplatelet therapy depend on genetic, cellular, and clinical factors. CYP2C19 and P2Y12 receptor polymorphisms are implicated in platelet responses to antiplatelet treatment. We aimed to evaluate the impact of CYP2C19 and C34T P2Y12 genotyping on platelet reactivity and cardiovascular outcome in patients after percutaneous coronary intervention (PCI) on clopidogrel treatment. METHODS: We enrolled 408 patients with stable coronary artery disease (CAD) receiving aspirin and clopidogrel (75 mg/day) 1 month after PCI...
March 22, 2017: Cardiology
https://www.readbyqxmd.com/read/28324874/strategies-and-outcomes-of-repeat-mitral-valve-interventions-after-failed-mitraclip-therapy
#2
Carmelo Grasso, Sergio Buccheri, Davide Capodanno, Antonio Popolo Rubbio, Maria Elena Di Salvo, Salvatore Scandura, Sarah Mangiafico, Tatiana Salerno, Stefano Cannata, Veronica Dezio, Giuseppe Castania, Marco Barbanti, Piera Capranzano, Corrado Tamburino
Percutaneous mitral valve repair (PMVR) with the MitraClip system (Abbott Vascular, Santa Clara, CA, USA) is a valid therapeutic option for patients with severe mitral regurgitation (MR) deemed to be at high or prohibitive surgical risk. Despite the reassuring data on efficacy and long-term durability of the procedure, the proportion of patients with residual or relapsing severe MR after MitraClip therapy is not negligible. In light of the detrimental prognostic impact of severe MR, repeat interventions are increasingly performed in clinical practice using different techniques...
March 22, 2017: Cardiology
https://www.readbyqxmd.com/read/28196358/wellens-syndrome-a-bad-omen
#3
Madalena Coutinho Cruz, Isabel Luiz, Lurdes Ferreira, Rui Cruz Ferreira
Wellens' syndrome is characterized by an electrocardiographic pattern of T-wave changes associated with a critical stenosis of the left anterior descending artery (LAD), which progresses to an extensive anterior myocardial infarction in the majority of cases. For this reason, its recognition and early treatment are extremely important. We report 2 cases of Wellens' syndrome: an 83-year-old male presenting with ill-characterized chest pain, biphasic T waves in V1-V3 during an asymptomatic period, negative cardiac biomarkers, and a 64% stenosis in LAD with a fractional flow reserve of 0...
February 15, 2017: Cardiology
https://www.readbyqxmd.com/read/28178705/sudden-cardiac-arrest-triggered-by-coadministration-of-fluconazole-and-amiodarone
#4
Jiajia Wang, Yanbin Chen, Wei Lei, Cheng Chen, Yehan Zhu, Nan Su, Chuankai Zhang, Jian-An Huang
Fluconazole for fungal infections and amiodarone for arrhythmia are commonly prescribed medications, and coadministration of such medications is sometimes inevitable in clinical practice. However, both medications have been associated with prolonged QTc intervals and subsequent arrhythmias, which are sometimes fatal. We present the case of a 75-year-old man with sudden cardiac arrest triggered by coadministration of fluconazole and amiodarone, which raises the need for caution regarding coadministration of these medications...
February 9, 2017: Cardiology
https://www.readbyqxmd.com/read/28178694/resolution-of-cheyne-stokes-respiration-after-treatment-of-heart-failure-with-sacubitril-valsartan-a-first-case-report
#5
Henrik Fox, Thomas Bitter, Dieter Horstkotte, Olaf Oldenburg
Sleep-disordered breathing (SDB) is highly prevalent in patients with heart failure (HF), and is known to be associated with a worse prognosis. The severity of central sleep apnea is thought to mirror cardiac dysfunction. The novel angiotensin receptor-neprilysin inhibitor (ARNi) sacubitril has been shown to improve HF, but a relationship between treatment with ARNi and the severity of SDB has not yet been investigated. We report the case of a 71-year-old male with HF and SDB. Treatment with sacubitril/valsartan was associated with improved cardiac function, as shown by a reduction in the level of N-terminal prohormone of brain natriuretic peptide from 3,249 to 1,720 pg/mL, and an improvement in left-ventricular ejection fraction from 30 to 35%...
February 9, 2017: Cardiology
https://www.readbyqxmd.com/read/28171874/predicting-successful-recanalization-in-patients-with-native-coronary-chronic-total-occlusion-the-busan-cto-score
#6
Cai De Jin, Moo Hyun Kim, Soo Jin Kim, Kwang Min Lee, Tae Hyung Kim, Young-Rak Cho, Victor L Serebruany
BACKGROUND: The optimal strategy to manage chronic total occlusion (CTO) remains unclear. The Japanese CTO multicenter registry (J-CTO) score is an established tool for predicting successful recanalization. However, it does not take into account nonangiographic predictors for final technique success. In the present study, we designed and tested a scoring model called the Busan single-center CTO registry (B-CTO) score combining clinical and angiographic characteristics to predict successful CTO recanalization in Korean patients...
February 8, 2017: Cardiology
https://www.readbyqxmd.com/read/28171858/exome-sequencing-identifies-a-novel-des-mutation-r227c-in-a-chinese-dilated-cardiomyopathy-family
#7
Rong Yu, Lv Liu, Chan Chen, Jin-Mei Shen
OBJECTIVES: Dilated cardiomyopathy (DCM) is a common disease in the clinic, and it is the leading cause of heart failure and sudden cardiac death. Previous studies have proven that genetic factors play a crucial role in the occurrence of DCM; more than 50 disease genes including desmin (DES) have been identified to be associated with DCM. At present, most DES mutations are reported in desmin-related myofibrilla myopathy patients, but variants leading to isolated DCM are rarely reported...
February 8, 2017: Cardiology
https://www.readbyqxmd.com/read/28152533/mild-left-ventricular-hypertrophy-unravels-a-novel-nonsense-mutation-of-the-gla-gene-associated-with-the-classical-phenotype-of-fabry-disease
#8
Olga Azevedo, Miguel Gago, Gabriel Miltenberger-Miltenyi, Paulo Gaspar, Nuno Sousa, Damião Cunha
We report on the clinical, biochemical, and genetic findings of a large family with the classical phenotype of Fabry disease due to the novel nonsense mutation c.607G>T (p.E203X) of the GLA gene, which occurs in the active site of the α-galactosidase A enzyme. This report highlights that (i) Fabry disease diagnosis should be considered in all cases of unexplained left ventricular hypertrophy (LVH), even in its milder forms; (ii) a complete evaluation of patients with unexplained LVH is important to find diagnostic red flags of treatable causes of LVH, such as Fabry disease; (iii) cascade family screening is paramount to the earlier diagnosis and treatment of other affected family members; and (iv) the Fabry disease phenotype is highly variable in heterozygote females, even within the same family...
February 3, 2017: Cardiology
https://www.readbyqxmd.com/read/28152524/tafamidis-for-the-treatment-of-hereditary-transthyretin-amyloid-cardiomyopathy-a-case-report
#9
Teppei Fujita, Takayuki Inomata, Toyoji Kaida, Yuichirou Iida, Yuki Ikeda, Takeru Nabeta, Shunsuke Ishii, Emi Maekawa, Takashi Naruke, Toshimi Koitabashi, Eiji Kitamura, Yoshiki Sekijima, Junya Ako
Tafamidis meglumine is a novel medicine that has been shown to slow the progression of peripheral neurological impairment in patients with hereditary transthyretin amyloidosis (ATTR). However, the efficacy of tafamidis against ATTR-related cardiac amyloidosis remains unclear. A 72-year-old woman had cardiac hypertrophy and axonopathy in her lower legs. Endomyocardial biopsy revealed an infiltrative cardiomyopathy consistent with amyloidosis. Immunostaining and genetic studies confirmed the diagnosis of ATTR, and tafamidis was started subsequently...
February 3, 2017: Cardiology
https://www.readbyqxmd.com/read/28118638/three-dimensional-printing-for-cardiology-to-be-or-not-to-be
#10
Hongxing Luo
No abstract text is available yet for this article.
January 25, 2017: Cardiology
https://www.readbyqxmd.com/read/28118625/three-dimensional-printing-for-cardiology-a-useful-tool-for-cardiac-intervention
#11
Peng Liu, Xiushi Li, Yan Zhang
No abstract text is available yet for this article.
January 25, 2017: Cardiology
https://www.readbyqxmd.com/read/28099954/an-evolution-of-management-in-hypertrophic-cardiomyopathy-myectomy-alcohol-septal-ablation-mitral-valve-replacement-mitraclip
#12
Konstantinos Dean Boudoulas, Harisios Boudoulas
No abstract text is available yet for this article.
January 19, 2017: Cardiology
https://www.readbyqxmd.com/read/28095388/the-use-of-mitraclip-for-symptomatic-patients-with-hypertrophic-obstructive-cardiomyopathy
#13
Felix Thomas, Florian Rader, Robert J Siegel
OBJECTIVES: Current nonpharmacological therapies for symptomatic patients with hypertrophic obstructive cardiomyopathy (HOCM), including septal myectomy and alcohol septal ablation (ASA), carry significant risks for serious cardiac conduction abnormalities. We present a review of the currently available published data regarding the novel use of the relatively low-risk MitraClip® system in the treatment of symptomatic patients. METHODS: Data were collected from 4 separate studies on the use of the MitraClip on 15 symptomatic HOCM patients with systolic anterior motion (SAM) of the mitral valve apparatus...
January 18, 2017: Cardiology
https://www.readbyqxmd.com/read/28068653/exosomes-derived-from-human-pulmonary-artery-endothelial-cells-shift-the-balance-between-proliferation-and-apoptosis-of-smooth-muscle-cells
#14
Lin Zhao, Hui Luo, Xiaohui Li, Tangzhiming Li, Jingni He, Qiangqiang Qi, Yuwei Liu, Zaixin Yu
BACKGROUND: The overproliferation of pulmonary vascular cells is noted in pulmonary hypertension. The role of exosomes from pulmonary artery endothelial cells (PAEC) in the proliferation and apoptosis of pulmonary artery smooth muscle cells (PASMC) remains unclear. METHODS: Exosomes were isolated and purified from the culture medium of PAEC using a commercial kit. Lipopolysaccharide (LPS), hypoxia, and hydrogen peroxide were utilized to induce PAEC injury. Coculture of PAEC and PASMC was conducted using Transwell plates, and GW4869 was applied to inhibit exosome release...
January 10, 2017: Cardiology
https://www.readbyqxmd.com/read/27923231/congenital-absence-of-the-pericardium-a-systematic-approach-to-diagnosis-and-management
#15
Bo Xu, Jorge Betancor, Craig Asher, Adriana Rosario, Allan Klein
Congenital absence of the pericardium (CAP) is a rare condition. Failure to recognize the clinical features of this condition can lead to incorrect and delayed diagnosis. Limited data are available regarding the optimal approach to diagnose and manage patients with suspected CAP. Due to the rare nature of CAP, this condition can present diagnostic and management dilemmas for clinicians. Using 3 cases of CAP as a framework, a clinically focused review on the diagnosis and management of CAP is presented. Clinicians will be provided with a systematic approach to evaluating patients with suspected CAP, incorporating key history, examination, and multimodality cardiovascular imaging investigations...
2017: Cardiology
https://www.readbyqxmd.com/read/27894109/ozone-therapy-and-its-use-in-medicine-further-comments
#16
Lamberto Re, Robert Rowen, Valter Travagli
No abstract text is available yet for this article.
2017: Cardiology
https://www.readbyqxmd.com/read/27880950/protease-activated-receptor-1-contributes-to-angiotensin-ii-induced-cardiovascular-remodeling-and-inflammation
#17
Silvio Antoniak, Jessica C Cardenas, Laura J Buczek, Frank C Church, Nigel Mackman, Rafal Pawlinski
BACKGROUND: Angiotensin II (Ang II) plays an important role in cardiovascular disease. It also leads to the activation of coagulation. The coagulation protease thrombin induces cellular responses by activating protease-activated receptor 1 (PAR-1). We investigated whether PAR-1 contributes to Ang II-induced cardiovascular remodeling and inflammation. METHODS AND RESULTS: PAR-1+/+ (wild-type; WT) and PAR-1-/- mice were infused with Ang II (600 ng/kg/min) for up to 4 weeks...
2017: Cardiology
https://www.readbyqxmd.com/read/27846629/assessment-of-a-drug-eluting-balloon-for-the-treatment-of-de-novo-coronary-lesions-guided-by-optical-coherence-tomography-study-protocol-for-a-randomized-controlled-trial
#18
Bo Li, Yu Ding, Feng Tian, Weiren Chen, Tianwen Han, Yundai Chen
BACKGROUND: The drug-eluting balloon (DEB) is a promising tool to prevent restenosis after coronary angioplasty. However, data on the outcomes of DEB in de novo lesions are scarce. Vessel recoil and constrictive remodeling are the dominant causes of restenosis after angioplasty. The use of cutting balloons (CB) may effectively reduce elastic recoil after balloon dilation. In this study, we evaluate the efficacy and safety of DEB in treating de novo coronary artery lesions, using a predilation strategy with cutting balloon (CB) dilation before DEB angioplasty...
2017: Cardiology
https://www.readbyqxmd.com/read/27832643/cardiac-surgery-for-carcinoid-heart-disease-a-weapon-not-to-be-misused
#19
Maria Bonou, Chris J Kapelios, Gregory Kaltsas, Konstantinos Perreas, Konstantinos Toutouzas, John Barbetseas
Carcinoid heart disease (CHD) complicates approximately 25% of patients with a carcinoid tumor and carcinoid syndrome and leads to heart valve degeneration with mixed-stenotic and regurgitation pathology and consequent heart failure (HF) leading to significant morbidity and mortality. Cardiac surgery in symptomatic, severe CHD leads to significantly better functional capacity and prolonged survival when compared to medical treatment alone. Recent studies have shown improvement in postoperative outcomes of patients undergoing surgery for CHD over the last decades...
2017: Cardiology
https://www.readbyqxmd.com/read/27829244/red-cell-distribution-width-and-hemorrhagic-events-related-to-dabigatran-use
#20
Ibrahim Halil Altiparmak, Feyzullah Besli
No abstract text is available yet for this article.
2017: Cardiology
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