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Results 351 - 400 of 1697
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Reverdin Stephane - - 2008
Herein, we report a successful bridge to heart transplantation by use of the TandemHeart percutaneous ventricular assist device (pVAD) in a chronic aortic dissection patient who was experiencing postcardiotomy shock. The patient had undergone an aortocoronary bypass to treat an acute, extensive myocardial infarction that had resulted from severe stenosis ...
Sato Koichi - - 2008
Left ventricular assist devices (LVADs) have become more important than ever for patients with terminal heart disease. The chronic shortage of donors for heart transplantation may enhance the importance of LVADs as destination therapy. To prevent cerebral complications, the evaluation of high-intensity transient signals (HITS) of transcranial Doppler (TCD) ultrasound ...
Slaughter Mark S - - 2008
Neurologic events during left ventricular assist device (LVAD) support are associated with significant morbidity and death. To evaluate this problem, we analyzed neurocognitive function and the frequency and incidence of neurologic events in 21 consecutive patients who were undergoing long-term support with the HeartMate XVE LVAD (Thoratec Corporation; Pleasanton, Calif). ...
Idelchik Gary M - - 2008
BACKGROUND: For patients with persistent cardiogenic shock refractory to intraaortic balloon pump (IABP) support, there are only limited means of resuscitation and bridging to surgical left ventricular assist device (LVAD) implantation. Extracorporeal membrane oxygenation and emergency surgical approaches have been attempted but are associated with significant morbidity and mortality. We ...
Kale Parag - - 2008
The optimal management strategy for patients with acutely decompensated heart failure has been limited to the use of various pharmacologic agents. However, with technological advances in mechanical devices, nonpharmacologic approaches now are available to supplement pharmacologic management. These devices range in sophistication and expertise and target various features of the ...
Shams Omar F - - 2008
Surgical approaches to heart failure (HF) management have become a necessary strategy in response to a waiting list that is expanding in the face of a limited supply of organ donors. Multiple studies have supported the safety and efficacy of device-based therapy. Among the device-based therapy options, ventricular assist devices ...
Morris Cullen D - - 2008
For patients with end-stage heart failure and contraindications to transplantation, insertion of a continuous-flow left ventricular assist device (LVAD) is an effective treatment strategy. We present a case of LVAD insertion in a 46-year-old man with cyanotic complex congenital heart disease and an extensive surgical history who presented with failure ...
Favaloro Roberto R - - 2008
Mechanical circulatory support during severe acute heart failure presents options for myocardial recovery or cardiac replacement. Short-term circulatory support with the newest generation of magnetically levitated centrifugal-flow pumps affords several potential advantages. Herein, we present our experience with such a pump-the CentriMag Levitronix LLC; Waltham, Mass) centrifugal-flow ventricular assist device-in ...
Maybaum Simon - - 2008
It is estimated that approximately 100,000 patients in the United States with advanced heart failure might benefit from cardiac transplantation, while donors are available for only 2000 recipients each year. Left ventricular assist devices (LVADs) are used both for bridge to transplantation and for long term support in patients ineligible ...
Morris Rohinton J - - 2008
End-stage congestive heart failure remains the leading cause of death in the United States. Despite advances in medical treatment, it also remains the most common reason for admission to the hospital. The gold standard of treatment for the failing heart, orthotopic heart transplantation, is limited by a shortage of donor ...
Arora U - - 2008
Ochrobactrum anthropi is an emerging opportunist pathogen in immunocompromised patients. We report a case of septicaemia due to O. anthropi in an elderly male patient with coronary artery disease with severe left ventricular dysfunction admitted in the Intensive coronary care unit. Following intraaortic balloon pump (IABP) insertion, the patient developed ...
Bruckner Brian A - - 2008
Cardiac support with a ventricular assist device is among the few treatments for heart-failure patients who have profound cardiogenic shock unresponsive to vasopressors and intra-aortic balloon pumps. The TandemHeart percutaneous ventricular assist device can provide temporary support until another device can be placed or a donor heart becomes available. We ...
Maat Alexander P W M - - 2008
BACKGROUND: An increasing number of children are requiring circulatory support. Hospitals offering pediatric Ventricular Assist Device (VAD) should have devices of different sizes available to cover the full range of patient sizes incurring considerable expense. As in adults, post-operative bleeding often complicates VAD implantation. The use of a Levitronix Centrimag ...
Nwaejike Nnamdi - - 2008
Cardiopulmonary bypass (CPB) allows operations on the heart in a motionless and bloodless field while reducing cardiac workload and sustaining systemic and coronary perfusion. Failure to wean from CPB remains a significant problem. Results from recent large registry data have shown dramatic improvement in the survival following ventricular assistance for ...
Bruggink, A.H.
This thesis describes a study of the changes in the extracellular matrix (ECM) of the myocardium, in patients with end stage heart failure and during mechanical support (Left Ventricular Assist Device support, LVAD) of the left ventricle. The changes during LVAD support may lead to recovery of the heart. Chapter ...
Bostwick J Michael - - 2007
During the past 2 years the number of studies examining psychopathology and quality of life after ICD implantation has increased dramatically. Variables assessed have included recipient age, gender, and social support network. How recipients respond to having the device, particularly after experiencing firing, has been evaluated in light of new ...
Blom Aaron S - - 2007
Infarct expansion is associated with impaired borderzone function, adverse remodeling, and poor long-term prognosis. We hypothesized that left ventricular restraint early after myocardial infarction limits infarct expansion, preserves borderzone function, and reduces remodeling. We used an ovine model as well as high spatial and temporal resolution cardiac magnetic resonance imaging ...
Pitsis Antonis A - - 2007
BACKGROUND: The aim of this study is to evaluate a percutaneous left ventricular assist device (Tandem Heart pVAD; Cardiac Assist, Pittsburgh, Pennsylvania) in the postcardiotomy setting. METHODS: Between August 2001 and August 2004, 11 high-risk male patients who had undergone heart failure surgery or surgical revascularization were supported by the ...
Holden S J - - 2007
Increasing use by law enforcement agencies of the M26 and X26 TASER electrical incapacitation devices has raised concerns about the arrhythmogenic potential of these weapons. Using a numerical phantom constructed from medical images of the human body in which the material properties of the tissues are represented, computational electromagnetic modelling ...
Reade M C - - 2008
Factor VIIa might be a useful treatment for coagulopathy and massive hemorrhage following implantation of a mechanical circulatory assist device, but there is a theoretical risk of device thrombosis. To date this complication has not been reported. We describe the first case of clotting of a left ventricular assist device ...
Cohn William E - - 2007
In this report we describe the insertion of a felt plug into the sewing ring attached to the left ventricular apex after explantation of a left ventricular assist device. This technique may be faster and simpler than standard explantation techniques and may result in less distortion of left ventricular geometry.
Farkas Emily A - - 2007
Surgical therapy for the treatment of heart failure is a relatively young solution to a problem that has overwhelmed civilizations dating back to the First Dynasty. Despite centuries of enormous multidisciplinary medical and technological advance, nearly 2000 people in the USA died of cardiovascular disease every day in 2006, averaging ...
Sauren Loes D C - - 2007
Some patients in need of hemodynamic support do not respond to intra-aortic balloon pump (IABP) therapy. Hemodynamic stability can then be obtained by a more potent cardiac assist device, like the Impella catheter pump. Whether additional IABP support additional to Impella support can provide more optimal hemodynamic myocardial conditions is ...
Wang Dongfang - - 2007
BACKGROUND: Our goal is ambulatory total respiratory and right heart assistance allowing a bridge to lung transplant. To that end, we have coupled a compact paracorporeal gas exchange device with a right ventricular assist device (RVAD) to create an "OxyRVAD." METHODS: Through a limited left thoracotomy, the main pulmonary artery ...
Ahn Eric - - 2009
A 59-year-old male with severe biventricular heart failure presented with worsening dyspnea and angina. Following left ventricular assist device insertion, an Amplatzer Septal Occluder (ASO) was required as the patient's patent foramen ovale reopened. Seven months later, the patient underwent heart transplantation. The excised ASO was covered with a thick ...
Dauerman Harold L - - 2007
Vascular closure devices (VCDs) introduce a novel means for improving patient comfort and accelerating ambulation after invasive cardiovascular procedures performed via femoral arterial access. Vascular closure devices have provided simple, rapid, and reliable hemostasis in a variety of clinical settings. Despite more than a decade of development, however, VCD utilization ...
Lima Estevao - - 2007
PURPOSE: Recently there has been increasing enthusiasm for performing simple abdominal procedures by transgastric surgery. We previously reported the usefulness of a combined transgastric and transvesical approach to cholecystectomy. In this study we assessed the feasibility of combined transgastric and transvesical approach for performing a more complex surgical procedure, such ...
Frogel Jonathan - - 2008
Ventricular assist device support for heart failure has gained popularity as both a bridge to heart transplantation and as destination therapy. Early device malfunction is unusual and can be caused by several distinct mechanisms. We present the first reported case of echocardiographic diagnosis of extracardiac cannula obstruction leading to biventricular ...
Windecker Stephan - - 2007
PURPOSE OF REVIEW: This review will discuss the rationale and clinical utility of percutaneous left ventricular assist devices in the management of patients with cardiogenic shock. RECENT FINDINGS: Left ventricular assist devices maintain partial or total circulatory support in case of severe left ventricular failure. Currently, two percutaneous left ventricular ...
Kuppahally S S - - 2007
The ongoing shortage of donors for cardiac transplantation has led to a trend toward acceptance of donor hearts with some structural abnormalities including left ventricular hypertrophy. To evaluate the outcome in recipients of donor hearts with increased left ventricular wall thickness (LVWT), we retrospectively analyzed data for 157 cardiac donors ...
Anyanwu Ani C - - 2007
Implantation of a left ventricular assist device through a median sternotomy usually requires cardiopulmonary bypass. However, the biological response to cardiopulmonary bypass is sometimes deleterious in end-stage heart failure patients, as it may compound pre-existing coagulopathy or multiorgan dysfunction. Therefore, there are potential advantages to avoiding cardiopulmonary bypass during left ...
Cohen Rémy - - 2007
Percutaneous coronary intervention (PCI) of complex coronary lesions in patients with severely depressed left ventricular (LV) function may increasingly constitute an alternative to surgical revascularization. The availability of hemodynamic support devices offers a promising option to reduce PCI-related complications in such high-risk procedures. We report the case of successful distal ...
Caruso Raffaele - - 2007
BACKGROUND: Left ventricular assist device (LVAD) implantation has proven effective as a bridge to transplantation in end-stage heart failure patients (ESHFPs), although survival during device support is critical. Oxidative stress has been implicated in the development of heart failure, but the influence of redox state on in-hospital post-LVAD outcome has ...
Herrold K - - 2008
In recent years, the incidence of acute rheumatic fever (ARF) has drastically decreased in the United States while remaining common in developing nations. However, immigration to the United States from developing nations has resulted in the continued prevalence of ARF. Patients with ARF face the potential development of significant valvular ...
Chumnanvej Siriluk - - 2007
Ventricular assist devices (VADs) are systems for mechanical circulatory support of the patient with severe heart failure. Perioperative transesophageal echocardiography is a major component of patient management, and important for surgical and anesthetic decision making. In this review we present the rationale and available data for a comprehensive echocardiographic assessment ...
Stone Marc E - - 2007
Mechanical circulatory support has become an increasingly used management strategy for patients with both acute and chronic ventricular failure. This article briefly reviews the current state of mechanical circulatory support with a focus on indications, contraindications, and complications of currently available devices. Perioperative considerations for ventricular assist device implantation are ...
Loyalka Pranav - - 2007
Recently, the TandemHeart percutaneous left ventricular assist device (pVAD) has become available as a means to both resuscitate and support patients in cardiogenic shock pending myocardial recovery or definitive surgical or percutaneous intervention. Hypoxia during pVAD support may arise from multiple pulmonary etiologies, including pulmonary edema and mechanisms resulting in ...
Lauten A - - 2007
We report a case of a patient with severe aortic stenosis, who underwent replacement of the aortic valve as a Ross procedure. Postoperatively the patient suffered postcardiotomy failure. Despite prolonged reperfusion and other methods of circulatory support, the patient could not be weaned from cardiopulmonary bypass (CPB). Therefore, an Impella ...
Kapur Navin K - - 2007
The incidence of probe-patent foramen ovale (PFO) at autopsy is approximately 27% with slit widths ranging from 1 mm to 19 mm (mean 4.9 mm) in diameter. In patients with end-stage heart failure requiring mechanical support, implantation of a left ventricular assist device (LVAD) abruptly decreases diastolic filling pressures and ...
McCue Jonathan D - - 2007
While there has been considerable debate regarding the timing of carotid endarterectomy (CEA) with respect to coronary artery bypass grafting, the ventricular assist device (VAD) patient population presents possible new concerns, given the implications of stroke while on mechanical support as a bridge to transplant. We present the first report ...
Nessar G - - 2007
Despite improvements in medical therapy, the annual high mortality rate from end-stage heart failure continues. Although cardiac transplantation is a successful treatment for these patients, the shortage of donor hearts has led surgeons to seek other options. Ventricular assist device (VAD) technology is applied to a broader population of heart ...
Nakata Kin-ichi - - 2007
BACKGROUND: A rotary blood pump may be implanted as a bridge to cardiac transplantation. Also, mechanical, histological, and biochemical improvements have been described in cardiac function after the implantation of a left ventricular assists device (LVAD). Thus there is considerable enthusiasm that LVAD might be used as a bridge to ...
Mariani Massimo A - - 2007
We describe the use of a novel device, the pulsatile catheter pump, in patients with left ventricular dysfunction undergoing off-pump coronary surgery. During a 1-year period, 14 patients (mean ejection fraction 28% +/- 8%) underwent off-pump coronary surgery using the pulsatile catheter pump. We recorded neither mortality nor major adverse ...
Lietz Katherine - - 2007
BACKGROUND: The landmark Randomized Evaluation of Mechanical Assistance for the Treatment of Congestive Heart Failure (REMATCH) trial first demonstrated that implantation of left ventricular assist devices (LVADs) as destination therapy (DT) can provide survival superior to any known medical treatment in patients with end-stage heart failure who are ineligible for ...
Padeletti Margherita - - 2007
Three patients, who were admitted for acute decompensation of end-stage congestive heart failure (CHF), underwent nocturnal polysomnography (PSG) before, and from 7 to 80 days after, left ventricular assist device (LVAD) implantation. Moderate to severe sleep-disordered breathing (SDB) was diagnosed in all 3 patients within 48 hours of admission, consisting ...
Saito Shunsuke - - 2007
One of the complications associated with use of implantable left ventricular assist systems for long-term support is compression or obstruction of abdominal viscera by the implanted device. This report concerns a patient with obstruction of the duodenum caused by an intra-abdominally placed Novacor left ventricular assist system. The compression of ...
Mueller Johannes - - 2007
This article documents the experience that mechanical unloading of a diseased heart by application of a left ventricular assist device showing the consequence of functional improvement and weaning thereafter is a realistic option. The patient who has been weaned first is still doing fine with sufficient and stable cardiac function ...
von Bayern Manuel Prinz - - 2007
The role of therapy using mechanical circulatory support devices has evolved rapidly over the last two decades. New developments in the field achieved smaller adverse events, but, currently, only minor improvements in survival were observed in published observational data. The authors discuss the development of mechanical circulatory support devices as ...
Selzman Craig H - - 2007
BACKGROUND AND AIM OF THE STUDY: Traditional left ventricular assist device (LVAD) implantation requires extensive dissection and use of cardiopulmonary bypass (CPB). Potential adverse effects of CPB in very ill end-stage heart failure patients include right ventricular dysfunction, end-organ injury, and bleeding. We sought to evaluate the feasibility and outcome ...
Arpesella G - - 2007
Mechanical circulatory support is an essential issue in the management of patients with end-stage cardiac failure. The aim of this study is to evaluate the efficacy of temporary support with a centrifugal blood pump as bridge to heart function recovery or bridge to transplantation. Heart recovery is achieved by improving ...
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