检索结果-南通市图书馆

Prediction of biventricular repair by echocardiography in borderline ventricle

Chinese Medical Journal 2019年第17期132卷 2105-2108页

作者： Xiao-Jing Ma Guo-Ying Huang Heart Center Children’s Hospital of Fudan University Shanghai 201102 China National Children’s Medical Center Shanghai 201102 China Shanghai Key Laboratory of Birth Defects Shanghai 201102 China

Objective: In recent years, attempting the biventricular pathway or biventricular conversions in patients with borderline ventricle has become a hot topic. However, inappropriate pursuit of biventricular repair in borderline candidates will lead to adverse clinical outcomes. Therefore, it is important to accurately assess the degree of ventricular development before operation and whether it can tolerate biventricular repair. This review evaluated ventricular development using echocardiography for a better prediction of biventricular repair in borderline ventricle. Data sources: Articles from January 1, 1990 to April 1, 2019 on biventricular repair in borderline ventricle were accessed from PubMed, using keywords including "borderline ventricle,""congenital heart disease,""CHD,""echocardiography," and "biventricular repair." Study selection: Original articles and critical reviews relevant to the review’s theme were selected. Results: Borderline left ventricle (LV):(1) Critical aortic stenosis: the Rhodes score, Congenital Heart Surgeons Society regression equation and another new scoring system was proposed to predict the feasibility of biventricular repair.(2) Aortic arch hypoplasia: the LV size and the diameter of aortic and mitral valve (MV) annulus should be taken into considerations for biventricular repair.(3) Right-dominant unbalanced atrioventricular septal defect (AVSD): atrioventricular valve index (AVVI), left ventricular inflow index (LVII), and right ventricle (RV)/LV inflow angle were the echocardiographic indices for biventricular repair. Borderline RV:(1) pulmonary atresia/intact ventricular septum (PA/IVS): the diameter z-score of tricuspid valve (TV) annulus, ratio of TV to MV diameter, RV inlet length z-score, RV area z-score, RV development index, and RV-TV index, etc. Less objective but more practical description is to classify the RV as tripartite, bipartite, and unipartite. The presence or absence of RV sinusoids, RV dependent coronary circulat

关键词： Borderline ventricle Congenital heart disease Echocardiography biventricular repair

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

biventricular pulsus alternans: An echocardiographic finding in patient with pulmonary embolism

引用

World Journal of Clinical Cases 2013年第5期1卷 162-165页

作者： Tin Nguyen Long-Bao Cao Minh Tran Assad Movahed Department of Cardiovascular Sciences East Carolina UniversityBrody School of Medicine East Carolina Heart Institute Greenville NC 27834 United States

Pulsus alternans is characterized by regular rhythm with beat-to-beat alternation of systolic pressures. Left ventricular alternans is usually found in severe left ventricular dysfunction due to cardiomyopathy, coronary artery disease, systemic hypertension, and aortic stenosis. Right ventricular alternans is usually associated with left ventricular alternans, right ventricular dysfunction, pulmonary embolism, and pulmonary hypertension. biventricular alternans is rare and associated with severe left ventricular dysfunction and left anterior descending coronary artery disease. The exact mechanism of pulsus alternans has not been clearly delineated, and it has been remained a subject of investigation and conjecture since the nineteenth century. Two fundamental mechanisms have been proposed to explain ventricular alteration. The first, based on the Frank-Starling mechanism, proposes beat-to-beat alteration in end-diastolic volume accounted for the alternating contractile force. The second proposed mechanism which explains the physiology of pulsus alternans involves the abnormal calcium handling by cardiac myocytes. To the best of our knowledge, biventricular alternans in pulmonaryembolism has not been previously reported in the medical literature. We present and discuss the mechanisms of pulsus alternans and its clinical implications.

关键词： Pulsus alternans biventricular alternans Pulmonary embolism

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

biventricular isolated apical hypoplasia:First-time description of a new cardiac abnormality by multimodality imaging

引用

Discussion of Clinical Cases 2022年第4期9卷 1-6页

作者： Fabio Chirillo Michee Fusaro Giovanni Baestriero Chiara Aderighi Umberto Cucchini Department of Cardiology Ospedale san BassianoBassano del Grappa(Ⅵ)Italy 2Department of RadiologyCa’Foncello HospitalTrevisoItaly

Left ventricular isolated hypoplasia is a seldom-described cardiac *** ventricular hypoplasia is usually associated with congenital anomalies of the pulmonary or the tricuspid valve,whereas biventricular isolated apical hypoplasia has never been *** report the case of a 48-year-old man with no history of known cardiac disease who was found to have a complex cardiac abnormality characterized by:1)Deficiency of the myocardium within the biventricular apex with adipose tissue infiltration;2)Truncated right ventricle because of an absent trabecular portion of the inflow tract;3)Truncated and spherical left ventricular apex;4)Origin of the mitral papillary muscle in the flattened anterior left ventricular *** imaging was performed to delineate the morphological and functional characteristics of this cardiomyopathy *** the best of our knowledge,this is the first description of a new cardiac abnormality characterized by the hypoplasia of the apical region of both ventricles in the absence of valvular or coronary artery disease.

关键词： Isolated apical hypoplasia biventricular Echocardiography Computed tomography Cardiac magnetic resonance imaging

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cardiac Resynchronization Therapy in 2015:Lessons Learned

引用

Cardiovascular Innovations and Applications 2015年第B10期1卷 93-106页

作者： Siva Ketha Fred M.Kusumoto Heart Rhythm Service Department of Cardiovascular DiseaseMayo ClinicJacksonvilleFL 32224USA

Over 20 years of research has led to the now widely accepted role of cardiac resynchronization therapy(CRT)in medically refractory,mild to severe systolic heart failure(HF)with increased QRS *** addition to conferring a mortality benefi t,CRT has been shown to reduce HF hospitalization rates and improve functional status in this ***,not all patients consistently demonstrate a positive response to *** to improve response to CRT have focused on improving patient selection and optimizing device implantation and follow-up,thereby correcting electrical and mechanical *** this article we review the pathobiology of cardiac dyssynchrony,the rationale for the use of CRT,the history and the state of the art of CRT,and guidelines and recommendations for CRT,while also focusing on the areas of controversy and potential future applications.

关键词： cardiac resynchronization therapy biventricular pacing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Implant Electrical Characteristics Predict Response to Cardiac Resynchronization Therapy

引用

World Journal of Cardiovascular Diseases 2014年第10期4卷 513-521页

作者： Tina Lin Paula Crosby Hariharan Sugumar Ryan Spencer Michael Darragh Flannery David O’Donnell Department of Electrophysiology Austin Health Heidelberg Australia Heart Care Victoria Heidelberg Australia

Background: The optimal site for left ventricular (LV) lead placement in cardiac resynchronization therapy (CRT) remains uncertain. Intra-procedural measures for predicting response to CRT have shown mixed results. Hypothesis: This study analyzed intracardiac electrogram (IEGM) characteristics at implant and assessed patients’ response rates (RR) to CRT. Methods: Forty-one consecutive patients undergoing CRT were enrolled. Medically optimized patients in sinus rhythm, with ejection fraction (EF) 34 were included. Right ventricular (RV) leads were positioned mid-septum. LV leads were targeted to the latest mechanical activation on echocardiography. IEGMs were measured, assessing intrinsic RV-to-LV delay (int RV-LV), RV-paced delay (RVp-LV), and LV-paced delay (LVp-RV). The difference between LVp-RV and RVp-LV was recorded as delta-LV. Response was defined as improvement of EF > 10%, reduction in LVEDD > 15% and improvement of ≥1 NYHA class. Results: Overall RR was 79%. LV leads were placed in the target location in 91%. Int RV-LV was 101 ± 14 ms in responders;78 ± 11 ms in non-responders (p 100 had a RR of 87%;int RV-LV 40 ms had a RR of 56%;delta-LV < 40 ms had a RR of 85%. There was no significant correlation between lead position, DI, QRS duration or EF and IEGM measurements. Conclusions: IEGM measures at implant are easily obtained. Significant intrinsic electrical delay and shorter delta-LV both predict response, even when LV leads are implanted in the targeted mechanically-delayed segment. These assessments of electrical dyssynchrony may be used to determine optimal lead positions and response to CRT.

关键词： Cardiac Resynchronization Therapy biventricular Pacing Intracardiac Electrograms Pacemaker Lead Position Echocardiography Heart Failure

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cardiac resynchronization therapy in acute pulmonary edema: A case report

引用

World Journal of Cardiology 2013年第9期5卷 355-358页

作者： Emad A Barsoum Tariq Bhat Deepak Asti Marcin Kowalski Thomas Vazzana Department of Medicine Staten Island University Hospital Division of Cardiology Staten Island University Hospital

We are reporting a case of 71-year old lady with a dual chamber demand pacemaker,who developed acute pulmonary edema due to an acute left ventricular(LV)dysfunction and worsening in mitral valve regurgitation after atrioventricular nodal ablation for uncontrolled atrial *** was attributed to right ventricular apical pacing leading to LV *** dramatically improved within 12-24 h after upgrading her single chamber pacemaker to biventricular *** case demonstrates that biventricular pacing can be an effective modality of treatment of acute congestive heart *** particular,it can be used when it is secondary to LV dysfunction and severe mitral regurgitation attributed to significant dyssynchrony created by right ventricular pacing in patients with atrioventricular nodal ablation for chronic atrial fibrillation.

关键词： Acute congestive heart failure Cardiac resynchronization therapy pacemaker Pacing Cardiac biventricular pacing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：