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1.
Entrapment of a Pacing Lead within a Chiari Network: Utility of Intracardiac Echo and a Laser Sheath 下载免费PDF全文
HTIN AUNG M.D. RAUL E. ESPINOSA M.D. BRIAN D. POWELL M.D. CHRISTOPHER J. MCLEOD M.B.Ch.B. Ph.D. 《Pacing and clinical electrophysiology : PACE》2016,39(6):620-622
Although rare, Chiari networks are elaborate embryological remnants that can pose distinct challenges for catheter and pacing lead manipulation within the right atrium. Device entrapment may require open thoracotomy for removal, with significant morbidity. We report an unusual case of pacing lead entanglement within this structure, followed by prompt intracardiac echocardiographic identification and laser sheath removal. 相似文献
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Importance of Ventricular Tachycardia Induction and Mapping for Patients Referred for Epicardial Ablation 下载免费PDF全文
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MATTHEW W. KREUTER TIMOTHY D. McBRIDE CHARLENE A. CABURNAY TIMOTHY POOR VETTA L. SANDERS THOMPSON KASSANDRA I. ALCARAZ KATHERINE S. EDDENS SUCHITRA RATH HANNAH PERKINS CHRISTOPHER CASEY 《The Milbank quarterly》2014,92(1):40-62
Context: Implementing the Affordable Care Act (ACA) in 2014 will require effective enrollment and outreach efforts to previously uninsured individuals now eligible for coverage.Methods: From 1996 to 2013, the Health Communication Research Laboratory conducted more than 40 original studies with more than 30,000 participants to learn how to improve the reach to and effectiveness of health information for low-income and racial/ethnic minority populations. We synthesized the findings from this body of research and used them to inform current challenges in implementing the ACA.Findings: We found empirical support for 5 recommendations regarding partnerships, outreach, messages and messengers, life priorities of low-income individuals and families, and the information environment. We translated these into 12 action steps.Conclusions: Health communication science can inform the development and execution of strategies to increase the public''s understanding of the ACA and to support the enrollment of eligible individuals into Medicaid or the Health Insurance Marketplace. 相似文献
5.
As discussed in other articles in this special issue, the Institute of Medicine's Crossing the Quality Chasm model is ideally suited to promote the transformation of mental health-care delivery systems [1]. The model identifies several key strategies through which transformation takes place, including new approaches to financing, preparing, and training of human resources; the introduction of evidence based practices; and implementation of information technology and performance measurement systems. This article focuses on only the last two of these strategies. Specific topics to be addressed include (a) the role of information technology in transformation, (b) development of a national information technology strategy, (c) development of a common information technology platform for the field, and (d) identification of common performance measures. Special attention is devoted to Decision Support 2000+, a Substance Abuse and Mental Health Services Administration initiative to promote these goals. 相似文献
6.
Cardiac Resynchronization Therapy Delivered Via a Multipolar Left Ventricular Lead is Associated with Reduced Mortality and Elimination of Phrenic Nerve Stimulation: Long‐Term Follow‐Up from a Multicenter Registry 下载免费PDF全文
JONATHAN M. BEHAR M.B.B.S. M.R.C.P. JULIAN BOSTOCK Ph.D. F.H.R.S. ADRIAN PO ZHU LI B.A. B.M.B.Ch. HUI MEN SELINA CHIN B.A. STEPHEN JUBB B.A. B.M.B.Ch. EDWARD LENT B.A.B.M. B.Ch. JAMES GAMBLE M.B.B.S. M.R.C.P. PAUL W.X. FOLEY M.D. F.R.C.P. TIM R. BETTS M.D. F.R.C.P. CHRISTOPHER ALDO RINALDI M.D. F.R.C.P. F.H.R.S. NEIL HERRING D.Phil. M.R.C.P. 《Journal of cardiovascular electrophysiology》2015,26(5):540-546
7.
Efficacy of a Bio‐Absorbable Antibacterial Envelope to Prevent Cardiac Implantable Electronic Device Infections in High‐Risk Subjects 下载免费PDF全文
MATTHEW J. KOLEK M.D. M.S.C.I. NEEL J. PATEL M.D. WALTER K. CLAIR M.D. M.P.H. S. PATRICK WHALEN M.D. JEFFREY N. ROTTMAN M.D. ARVINDH KANAGASUNDRAM M.D. SHARON T. SHEN M.D. PABLO J. SAAVEDRA M.D. JUAN C. ESTRADA M.D. ROBERT L. ABRAHAM M.D. CHRISTOPHER R. ELLIS M.D. 《Journal of cardiovascular electrophysiology》2015,26(10):1111-1116
8.
SIEW YEN HO Ph.D. JANET M. McCOMB M.D. CHRISTOPHER D. SCOTT M.B. ROBERT H. ANDERSON M.D. 《Journal of cardiovascular electrophysiology》1993,4(5):504-512
Conduction System in Dual AV Nodal Pathways. Introduction: Although the electrophysiologic criteria for dual atrioventricular nodal pathways are well established, the anatomical substrate is still unclear.
Methods and Results: We examined the hearts from 10 patients who had been studied electrophysiologically prior to cardiac transplantation. All 10 patients were male, aged 22 to 60years. Nine of the 10 patients had dual atrioventricular nodal pathways according to acceptedcriteria. Histologic studies of the atrioventricular conduction system showed normal structureof the atrioventricular node in all 10 hearts, with minor variations within the node in 3 cases, within the penetrating bundle in 3 cases, and within the nonbranching bundle in 3 cases. Theatrial approaches to the atrioventricular node were generally scanty in 6 hearts. The solitarycase that was shown electrophysiologically to lack dual pathways had no obvious difference inthe structure of the nodal area other than sparsity of transitional cells. We were unable tolocate any extranodal atrial tracts as described by other investigators.
Conclusion: The anatomical substrate for conduction over dual pathways may he too subtleto be detected by gross morphologic studies. Since dual pathways were unmasked in allpatients but one during electrophysiologic studies, it may be that the potential for these pathways is ubiquitous. 相似文献
Methods and Results: We examined the hearts from 10 patients who had been studied electrophysiologically prior to cardiac transplantation. All 10 patients were male, aged 22 to 60years. Nine of the 10 patients had dual atrioventricular nodal pathways according to acceptedcriteria. Histologic studies of the atrioventricular conduction system showed normal structureof the atrioventricular node in all 10 hearts, with minor variations within the node in 3 cases, within the penetrating bundle in 3 cases, and within the nonbranching bundle in 3 cases. Theatrial approaches to the atrioventricular node were generally scanty in 6 hearts. The solitarycase that was shown electrophysiologically to lack dual pathways had no obvious difference inthe structure of the nodal area other than sparsity of transitional cells. We were unable tolocate any extranodal atrial tracts as described by other investigators.
Conclusion: The anatomical substrate for conduction over dual pathways may he too subtleto be detected by gross morphologic studies. Since dual pathways were unmasked in allpatients but one during electrophysiologic studies, it may be that the potential for these pathways is ubiquitous. 相似文献
9.
CHRISTOPHER P. WARD ROBERT W. McCARLEY ROBERT E. STRECKER 《Journal of sleep research》2009,18(2):238-244
Sleep fragmentation is a common symptom in sleep disorders and other medical complaints resulting in excessive daytime sleepiness. The present study seeks to explore the effects of sleep fragmentation on learning and memory in a spatial reference memory task and a spatial working memory (WM) task. Fischer/Brown Norway rats lived in custom treadmills designed to induce locomotor activity every 2 min throughout a 24-h period. Separate rats were either on a treadmill schedule that allowed for consolidated sleep or experienced no locomotor activation. Rats were tested in one of two water maze-based tests of learning and memory immediately following 24 h of sleep interruption. Rats tested in a spatial reference memory task (eight massed acquisition trials) with a 24-h follow-up probe trial to assess memory retention showed no differences in acquisition performance but were impaired on the 24 h retention of the platform location. In contrast, the performance of rats tested in a spatial WM task (delayed matching to position task) was not impaired. Therefore, sleep fragmentation prior to testing impairs the ability to retain spatial reference memories but does not impair spatial reference memory acquisition or spatial WM in Fischer-Norway rats. 相似文献
10.
MARILYN TAN MD ; DEREK ARMSTRONG MD ; CATHERINE BIRKEN MD ; ARI BITNUN MD ; CHRISTOPHER A CALDARONE MD ; PETER COX MB CHB ; WALTER KAHR MD PHD ; DAUNE MACGREGOR MD ; RAND ASKALAN PHD MD 《Developmental medicine and child neurology》2009,51(2):151-154
Thrombolysis is considered to be contraindicated in acute ischemic stroke secondary to infective endocarditis (IE). We report a 12-year-old female who presented with acute dense right hemiparesis and aphasia. Cranial magnetic resonance imaging and angiography showed multiple diffusion-restricted lesions in the left hemisphere and absence of flow in the left internal carotid artery. She was treated with intra-arterial tissue plasminogen activator within 6 hours of her presentation. Subsequently she was diagnosed with pneumococcal endocarditis and underwent debridement of vegetations and patch repair of the mitral valve. The patient did not have hemorrhagic complications following thrombolytic therapy or surgery. Pathological analysis of the mitral valve vegetations revealed mostly fibrin thrombus. Follow-up imaging showed complete recanalization of the left internal carotid artery, and the patient had a remarkable neurological recovery. This is the first case report of successful intra-arterial thrombolytic therapy in childhood IE-related stroke. We believe that thrombolytic therapy contributed to a favorable outcome in our patient and may be safe in selected patients with childhood IE-related acute ischemic stroke. 相似文献