ISRN cardiology最新文献_第9页

Imaging techniques in acute coronary syndromes: a review. 急性冠状动脉综合征的影像学技术综述。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-11-17 DOI: 10.5402/2011/359127

Stanley K Zimmerman, James L Vacek

引用次数: 7

Coronary aneurysm occurring late after drug-eluting stent implantation. 冠脉动脉瘤发生于药物洗脱支架植入术后期。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-05-11 DOI: 10.5402/2011/367512

Etan Abergel, Ariel Roguin

{"title":"Coronary aneurysm occurring late after drug-eluting stent implantation.","authors":"Etan Abergel, Ariel Roguin","doi":"10.5402/2011/367512","DOIUrl":"https://doi.org/10.5402/2011/367512","url":null,"abstract":"Drug-eluting stents may affect the normal healing process of the vessel wall and the remodeling process and may lead to late stent malapposition (LSM). The known incidence of this phenomen originates from short-term angiographic follow-up studies. We describe a case report of very late stent malapposition and marked positive vessel remodeling 3 years after sirolimus-eluting coronary stent implantation. Angiography performed one year after stent implantation was normal. Thus, the abnormalities developed sometime between years 1 and 3. The cause is unknown, but it is reasonable to suggest a local effect of the medication/polymer of the stent. LSM rate and aneurysmal formation is higher in DES than in BMS and may be associated with increased risk for late stent thrombosis. Currently, the risk of very late stent thrombosis after DES implantation is of major concern. As observed in this case report, LSM might occur and develop very late. This has significant consequences especially to the many asymptomatic patients with DES implanted many years ago and the recommendation of dual antiplatelet therapy. More studies with late and very late follow up are needed to better define this finding, its mechanism, how to avoid it, and how to treat it properly.","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2011 ","pages":"367512"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2011/367512","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30472052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Can We Exclude the Diagnosis of Non-ST Segment Myocardial Infarction on the Basis of a Single Troponin I and a Symptom Duration ≥8 Hours? 基于单一肌钙蛋白I和症状持续时间≥8小时，可以排除非st段心肌梗死的诊断吗?

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-04-12 DOI: 10.5402/2011/364728

Jeremy S Lynn, Amandeep Singh, Eric R Snoey

{"title":"Can We Exclude the Diagnosis of Non-ST Segment Myocardial Infarction on the Basis of a Single Troponin I and a Symptom Duration ≥8 Hours?","authors":"Jeremy S Lynn, Amandeep Singh, Eric R Snoey","doi":"10.5402/2011/364728","DOIUrl":"https://doi.org/10.5402/2011/364728","url":null,"abstract":"Background. The use of a single troponin measurement to exclude the diagnosis of non-ST segment myocardial infarction (NSTEMI) in patients that present with ischemic symptom duration ≥8 hours is sometimes used in the Emergency Department. Study Objective. To describe the characteristics of patients with initial nondiagnostic troponin values who develop a positive troponin while in the Emergency Department and to evaluate whether NSTEMI can be excluded using symptom duration ≥8 hours and initial troponin I. Methods. Retrospective chart review of patients evaluated for NSTEMI in the Emergency Department. Results. 4,510 patients had at least two troponin I values obtained during the two-year study period. 115 (2.5%) of these patients had an initially nondiagnostic (<0.6 ng/mL) and subsequent positive (≥0.6 ng/mL) troponin I result. Twenty-five (22%) of the 115 had duration of symptoms ≥8 hours. Of these 25 patients, 18 had an intermediate first troponin value (i.e., >0.06 ng/mL, but <0.6 ng/mL). Only two of the remaining seven patients had a final primary diagnosis of NSTEMI. Conclusion. The use of a negative initial troponin I together with a symptom onset of ≥8 hours defines a population with a very low incidence of a hospital diagnosis of NSTEMI.","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2011 ","pages":"364728"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2011/364728","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30472051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

What Happens before Syncope? Study of the Time Frame Preceding Vasovagal Syncope. 晕厥之前会发生什么?血管迷走神经性晕厥发生时间的研究。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-04-14 DOI: 10.5402/2011/659787

Alfonso Lagi, Simone Cencetti, Alessandro Cartei

引用次数: 3

Aorta fluorescence imaging by using confocal microscopy. 共聚焦显微镜主动脉荧光成像。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-07-09 DOI: 10.5402/2011/215627

Chun-Yang Wang, Jui-Che Tsai, Ching-Cheng Chuang, Yao-Sheng Hsieh, Chia-Wei Sun

引用次数: 3

Assessment of Association of Increased Heart Rates to Cardiovascular Events among Healthy Subjects in the United States: Analysis of a Primary Care Electronic Medical Records Database. 美国健康受试者心率增加与心血管事件的关联评估:初级保健电子医疗记录数据库分析

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-04-28 DOI: 10.5402/2011/924343

Carl V Asche, Jaewhan Kim, Amit S Kulkarni, Paula Chakravarti, Karl-Erik Andersson

{"title":"Assessment of Association of Increased Heart Rates to Cardiovascular Events among Healthy Subjects in the United States: Analysis of a Primary Care Electronic Medical Records Database.","authors":"Carl V Asche, Jaewhan Kim, Amit S Kulkarni, Paula Chakravarti, Karl-Erik Andersson","doi":"10.5402/2011/924343","DOIUrl":"https://doi.org/10.5402/2011/924343","url":null,"abstract":"Objective. To determine whether increases in heart rates (HRs) over time leads to adverse cardiovascular (CV) events among \"healthy subjects.\" Methods. This retrospective cohort study used the GE Centricity EMR database. \"Healthy subjects\" were defined as those with Charlson Comorbidity Index (CCI) score = 0 and Chronic Disease Score (CDS) = 0 at baseline. Subjects were followed for 3 years post the first date of a clinical encounter between the patient and provider. Those aged ≥18 years old with baseline HR and ≥2 post-index HR readings were identified between 01/01/1996 to 03/30/2007. Results. There were 93,952 \"healthy subjects\" at baseline (median age 42 years; 67.2% women; mean HR was 75.8 (SD: 11) bpm); 20.7% with a mean HR at baseline of 76.3 (SD: 11.3) bpm (median age 45; 63 women) experienced a CV event during 3 years of follow-up. The mean HR was higher among those with a CV event (76.3 bmp) compared to those without a CV event (75.7 bpm). A Cox regression model indicated that an increase in HR by 5 bpm was associated with a 1% increase in CV event risk. Conclusions. Elevated HRs are associated with an increased likelihood of CV events among \"healthy subjects\".","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2011 ","pages":"924343"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2011/924343","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30471292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Recent clinical and experimental advances in atrial fibrillation. 心房颤动的最新临床和实验进展。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-08-01 DOI: 10.5402/2011/958189

Shigeru Miyagawa, Taichi Sakaguchi, Hiroyuki Nishi, Yasushi Yoshikawa, Satsuki Fukushima, Shunsuke Saito, Yoshiki Sawa

引用次数: 3

Diffuse involvement of aorta in patient with familial hyperlipidemia. 家族性高脂血症患者主动脉弥漫性受累。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-04-12 DOI: 10.5402/2011/804767

Mehmet Mustafa Can, Ibrahim Halil Tanboga, Taylan Akgun

引用次数: 0

Management-oriented classification of mitral valve regurgitation. 以管理为导向的二尖瓣反流分类。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-07-14 DOI: 10.5402/2011/858714

Reida El Oakley, Aijaz Shah

{"title":"Management-oriented classification of mitral valve regurgitation.","authors":"Reida El Oakley, Aijaz Shah","doi":"10.5402/2011/858714","DOIUrl":"10.5402/2011/858714","url":null,"abstract":"Mitral regurgitation (MR) has previously been classified into rheumatic, primary, and secondary MR according to the underlying disease process. Carpentier's/Duran functional classifications are apt in describing the mechanism(s) of MR. Modern management of MR, however, depends primarily on the severity of MR, status of the left ventricular function, and the presence or absence of symptoms, hence the need for a management-oriented classification of MR. In this paper we describe a classification of MR into 4 phases according to LV function: phase I = MR with normal left ventricle, phase II = MR with normal ejection fraction (EF) and indirect signs of LV dysfunction such as pulmonary hypertension and/or recent onset atrial fibrillation, phase III = EF ≥ 30%-< 50% and/or mild to moderate LV dilatation (ESID 40-54 mm), and phase IV = EF < 30% and/or severe LV dilatation (ESDID ≥ 55 mm). Each phase is further subdivided into three stages: stage \"A\" with an effective regurgitant orifice (ERO) < 20 mm, stage \"B\" with an ERO = 20-39 mm, and stage \"C\" with an ERO ≥ 40 mm. Evidence-based indications and outcome of intervention for MR will also be discussed.","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2011 ","pages":"858714"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3262491/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30471289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Increased B-type natriuretic Peptide concentration is associated with reduced coronary vasoreactivity in patients with dilated cardiomyopathy but not in healthy young subjects. 扩张型心肌病患者b型利钠肽浓度升高与冠状动脉血管反应性降低相关，但在健康的年轻受试者中不相关。

ISRN cardiology Pub Date : 2011-01-01 Epub Date: 2011-04-11 DOI: 10.5402/2011/638764

Jan Sundell, Erik Engblom, Juhani Koistinen, Antti Ylitalo, Hanna Laine, Riikka Kalliokoski, K E Juhani Airaksinen, Jeroen J Bax, Juhani Knuuti

{"title":"Increased B-type natriuretic Peptide concentration is associated with reduced coronary vasoreactivity in patients with dilated cardiomyopathy but not in healthy young subjects.","authors":"Jan Sundell, Erik Engblom, Juhani Koistinen, Antti Ylitalo, Hanna Laine, Riikka Kalliokoski, K E Juhani Airaksinen, Jeroen J Bax, Juhani Knuuti","doi":"10.5402/2011/638764","DOIUrl":"https://doi.org/10.5402/2011/638764","url":null,"abstract":"Background/Aims. Natriuretic peptides are associated with the cardiovascular disease risk under a range of different circumstances. However, less is known about whether this association is found also in young healthy subjects. Methods. 9 patients with dilated cardiomyopathy and 26 healthy young subjects were studied. The myocardial blood flow measurements were performed basally and during adenosine infusion using PET. Results. S-proBNP concentrations were significantly higher (2153 ± 1964 versus 28 ± 17 ng/L, P = .000002) and adenosine-stimulated flow lower (1.6 ± 0.8 versus 3.6 ± 1.1 mL·g(-1)·min(-1), P = .00001) in patients with dilated cardiomyopathy when compared to healthy subjects. S-proBNP concentration was inversely associated with adenosine stimulated flow in patients with dilated cardiomyopathy (r = -0.75, P = .019) but not in healthy subjects (r = -0.06, P = .84). Conclusions. Natriuretic peptides are inversely associated with coronary vasoreactivity in patients with dilated cardiomyopathy but not in healthy young subjects. Since reduced coronary vasoreactivity seems to be one of the earliest abnormalities in the development of coronary artery disease, this might indicate that natriuretic peptides are not predictor of cardiovascular disease risk in healthy young subjects.","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2011 ","pages":"638764"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2011/638764","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30470820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0