321. Management of Systemic Right Ventricular Failure in Patients With Congenitally Corrected Transposition of the Great Arteries.
作者: Aleksei A Filippov.;Pedro J Del Nido.;Nikolay V Vasilyev.
来源: Circulation. 2016年134卷17期1293-1302页
In recent decades, significant progress has been made in the diagnosis and management of congenitally corrected transposition of the great arteries (ccTGA). Nevertheless, gradual dysfunction and failure of the right ventricle (RV) in the systemic circulation remain the main contributors to mortality and disability for patients with ccTGA, especially after adolescence. Anatomic repair of ccTGA effectively resolves the problem of failure of the systemic RV and has good early and midterm results. However, this strategy is applicable primarily in infants and children up to their teens and has associated risks and limitations, and new challenges can arise in the late postoperative period. Patients with ccTGA manifesting progressive systemic RV dysfunction beyond adolescence represent the major challenge. Several palliative options such as cardiac resynchronization therapy, tricuspid valve repair or replacement, pulmonary artery banding, and implantation of an assist device into the systemic RV can be used to improve functional status and to delay the progression of ventricular dysfunction in patients who are not suitable for anatomic correction of ccTGA. For adult patients with severe systemic RV failure, heart transplantation currently remains the only long-term lifesaving procedure, although donor organ availability remains one of the most limiting factors in this type of therapy. This review focuses on current surgical and medical strategies and interventional options for the prevention and management of systemic RV failure in adults and children with ccTGA.
322. Surgical Management of Infective Endocarditis Complicated by Embolic Stroke: Practical Recommendations for Clinicians.
作者: Bobby Yanagawa.;Gosta B Pettersson.;Gilbert Habib.;Marc Ruel.;Gustavo Saposnik.;David A Latter.;Subodh Verma.
来源: Circulation. 2016年134卷17期1280-1292页
There has been an overall improvement in surgical mortality for patients with infective endocarditis (IE), presumably because of improved diagnosis and management, centered around a more aggressive early surgical approach. Surgery is currently performed in approximately half of all cases of IE. Improved survival in surgery-treated patients is correlated with a reduction in heart failure and the prevention of embolic sequelae. It is reported that between 20% and 40% of patients with IE present with stroke or other neurological conditions. It is for these IE patients that the timing of surgical intervention remains a point of considerable discussion and debate. Despite evidence of improved survival in IE patients with earlier surgical treatment, a significant proportion of patients with IE and preexisting neurological complications either undergo delayed surgery or do not have surgery at all, even when surgery is indicated and guideline endorsed. Physicians and surgeons are caught in a common conundrum where the urgency of the heart operation must be balanced against the real or perceived risks of neurological exacerbation. Recent data suggest that the risk of neurological exacerbation may be lower than previously believed. Current guidelines reflect a shift toward early surgery for such patients, but there continue to be important areas of clinical equipoise. Individualized clinical assessment is of major importance for decision making, and, as such, we emphasize the need for the functioning of an endocarditis team, including cardiac surgeons, cardiologists, infectious diseases specialists, neurologists, neurosurgeons, and interventional neuroradiologists. Here, we present 2 illustrative cases, critically review contemporary data, and offer conceptual and practical suggestions for clinicians to address this important, common, and often fatal cardiac condition.
323. Current Therapy for Hypoplastic Left Heart Syndrome and Related Single Ventricle Lesions.
Universally fatal only 4 decades ago, the progress in the 3-stage palliation of hypoplastic left heart syndrome and related single right ventricular lesions has drastically improved the outlook for these patients. Although the stage II operation (hemi-Fontan or bidirectional Glenn) and stage III Fontan procedure have evolved into relatively low-risk operations, the stage I Norwood procedure remains one of the highest-risk and costliest common operations performed in congenital heart surgery. Yet, despite this fact, experienced centers now report hospital survivals of >90% for the Norwood procedure. This traditional 3-stage surgical palliation has seen several innovations in the past decade aimed at improving outcomes, particularly for the Norwood procedure. One significant change is a renewed interest in the right ventricle-to-pulmonary artery shunt as the source of pulmonary blood flow, rather than the modified Blalock-Taussig shunt for the Norwood. The multi-institutional Single Ventricle Reconstruction trial randomly assigned 555 patients to one or the other shunt, and these subjects continue to be followed closely as they now approach 10 years postrandomization. In addition to modifications to the Norwood procedure, the hybrid procedure, a combined catheter-based and surgical approach, avoids the Norwood procedure in the newborn period entirely. The initial hybrid procedure is then followed by a comprehensive stage II, which combines components of both the Norwood and the traditional stage II, and later completion of the Fontan. Proponents of this approach hope to improve not only short-term survival, but also potentially longer-term outcomes, such as neurodevelopment, as well. Regardless of the approach, traditional surgical staged palliation or the hybrid procedure, survivals have vastly improved, and large numbers of these patients are surviving not only through their Fontan in early childhood, but also into adolescence and young adulthood. As this population grows, it becomes increasingly important to understand the longer-term outcomes of these Fontan patients, not only in terms of survival, but also in terms of the burden of disease, neurodevelopmental outcomes, psychosocial development, and quality of life.
324. Single-Ventricle Outcomes After Neonatal Palliation of Severe Ebstein Anomaly With Modified Starnes Procedure.
作者: S Ram Kumar.;Grace Kung.;Nathan Noh.;Novel Castillo.;Brian Fagan.;Winfield J Wells.;Vaughn A Starnes.
来源: Circulation. 2016年134卷17期1257-1264页
We have previously shown that neonates in profound cardiogenic shock caused by a severe Ebstein anomaly can be successfully salvaged with fenestrated right ventricular exclusion and systemic to pulmonary shunt (modified Starnes procedure). The long-term outcome of single-ventricle management in these patients is not known.
325. Impact of Left Ventricular to Mitral Valve Ring Mismatch on Recurrent Ischemic Mitral Regurgitation After Ring Annuloplasty.
作者: Romain Capoulade.;Xin Zeng.;Jessica R Overbey.;Gorav Ailawadi.;John H Alexander.;Deborah Ascheim.;Michael Bowdish.;Annetine C Gelijns.;Paul Grayburn.;Irving L Kron.;Robert A Levine.;Michael J Mack.;Serguei Melnitchouk.;Robert E Michler.;John C Mullen.;Patrick O'Gara.;Michael K Parides.;Peter Smith.;Pierre Voisine.;Judy Hung.; .
来源: Circulation. 2016年134卷17期1247-1256页
In ischemic mitral regurgitation (IMR), ring annuloplasty is associated with a significant rate of recurrent MR. Ring size is based on intertrigonal distance without consideration of left ventricular (LV) size. However, LV size is an important determinant of mitral valve (MV) leaflet tethering before and after repair. We aimed to determine whether LV-MV ring mismatch (mismatch of LV size relative to ring size) is associated with recurrent MR in patients with IMR after restrictive ring annuloplasty.
326. Coronary Artery Bypass Graft Versus Percutaneous Coronary Intervention: Meds Matter: Impact of Adherence to Medical Therapy on Comparative Outcomes.
作者: Paul Kurlansky.;Morley Herbert.;Syma Prince.;Michael Mack.
来源: Circulation. 2016年134卷17期1238-1246页
Multiple studies have compared coronary artery bypass graft (CABG) with percutaneous coronary interventions (PCI) for coronary revascularization. There is considerable evidence that adherence to medical therapy can affect the outcomes of therapeutic interventions. However, the long-term influence of compliance with recommended medical therapy on the comparative outcomes of CABG versus PCI remains to be defined.
327. Temporal Trends in Predictors of Early and Late Mortality After Emergency Coronary Artery Bypass Grafting for Cardiogenic Shock Complicating Acute Myocardial Infarction.
作者: Piroze M Davierwala.;Sergey Leontyev.;Alexander Verevkin.;Ardawan J Rastan.;Matthias Mohr.;Farhad Bakhtiary.;Martin Misfeld.;Friedrich W Mohr.
来源: Circulation. 2016年134卷17期1224-1237页
Cardiogenic shock after acute myocardial infarction is an indication for emergent coronary artery bypass grafting in patients not amenable to percutaneous coronary intervention. Our study aimed to evaluate and identify risk factors for early and long-term outcomes in such patients.
329. Long-Term Survival and Freedom From Reintervention After Off-Pump Coronary Artery Bypass Grafting: A Propensity-Matched Study.
The long-term outcomes of off-pump coronary artery bypass grafting (CABG) are the subject of speculation. Our institution has >15 years of experience performing CABG both off-pump (OPCAB) and on cardiopulmonary bypass (CPB). Our null hypothesis was that there would be no difference in a long-term composite of death and revascularisation between the 2 methods.
333. Reductions in Atherogenic Lipids and Major Cardiovascular Events: A Pooled Analysis of 10 ODYSSEY Trials Comparing Alirocumab With Control.
作者: Kausik K Ray.;Henry N Ginsberg.;Michael H Davidson.;Robert Pordy.;Laurence Bessac.;Pascal Minini.;Robert H Eckel.;Christopher P Cannon.
来源: Circulation. 2016年134卷24期1931-1943页
A continuous relationship between reductions in low-density lipoprotein cholesterol (LDL-C) and major adverse cardiovascular events (MACE) has been observed in statin and ezetimibe outcomes trials down to achieved levels of 54 mg/dL. However, it is uncertain whether this relationship extends to LDL-C levels <50 mg/dL. We assessed the relationship between additional LDL-C, non-high-density lipoprotein cholesterol, and apolipoprotein B100 reductions and MACE among patients within the ODYSSEY trials that compared alirocumab with controls (placebo/ezetimibe), mainly as add-on therapy to maximally tolerated statin.
334. Duration of Prehospital Cardiopulmonary Resuscitation and Favorable Neurological Outcomes for Pediatric Out-of-Hospital Cardiac Arrests: A Nationwide, Population-Based Cohort Study.
The appropriate duration of cardiopulmonary resuscitation (CPR) for pediatric out-of-hospital cardiac arrests (OHCAs) remains unclear and may differ based on initial rhythm. We aimed to determine the relationship between the duration of prehospital CPR by emergency medical services (EMS) personnel and post-OHCA outcomes.
335. Aortic Cross-Sectional Area/Height Ratio and Outcomes in Patients With a Trileaflet Aortic Valve and a Dilated Aorta.
作者: Ahmad Masri.;Vidyasagar Kalahasti.;Lars G Svensson.;Eric E Roselli.;Douglas Johnston.;Donald Hammer.;Paul Schoenhagen.;Brian P Griffin.;Milind Y Desai.
来源: Circulation. 2016年134卷22期1724-1737页
In patients with a dilated proximal ascending aorta and trileaflet aortic valve, we aimed to assess (1) factors independently associated with increased long-term mortality and (2) the incremental prognostic utility of indexing aortic root to patient height.
337. Procedural and Long-Term Outcomes of Bioresorbable Scaffolds Versus Drug-Eluting Stents in Chronic Total Occlusions: The BONITO Registry (Bioresorbable Scaffolds Versus Drug-Eluting Stents in Chronic Total Occlusions).
作者: Lorenzo Azzalini.;Gennaro Giustino.;Soledad Ojeda.;Antonio Serra.;Alessio La Manna.;Hung Q Ly.;Barbara Bellini.;Susanna Benincasa.;Jorge Chavarría.;Livia L Gheorghe.;Giovanni Longo.;Eligio Miccichè.;Guido D'Agosta.;Fabien Picard.;Manuel Pan.;Corrado Tamburino.;Azeem Latib.;Mauro Carlino.;Alaide Chieffo.;Antonio Colombo.
来源: Circ Cardiovasc Interv. 2016年9卷10期
There is little evidence regarding the efficacy and safety of bioresorbable scaffolds (BRS) for the percutaneous treatment of chronic total occlusions.
338. Inhibition of Aberrant MicroRNA-133a Expression in Endothelial Cells by Statin Prevents Endothelial Dysfunction by Targeting GTP Cyclohydrolase 1 in Vivo.
作者: Peng Li.;Ya-Ling Yin.;Tao Guo.;Xue-Ying Sun.;Hui Ma.;Mo-Li Zhu.;Fan-Rong Zhao.;Ping Xu.;Yuan Chen.;Guang-Rui Wan.;Fan Jiang.;Qi-Sheng Peng.;Chao Liu.;Li-Ying Liu.;Shuang-Xi Wang.
来源: Circulation. 2016年134卷22期1752-1765页
GTP cyclohydrolase 1 (GCH1) deficiency is critical for endothelial nitric oxide synthase uncoupling in endothelial dysfunction. MicroRNAs (miRs) are a class of regulatory RNAs that negatively regulate gene expression. We investigated whether statins prevent endothelial dysfunction via miR-dependent GCH1 upregulation.
339. Association Between Duration of Resuscitation and Favorable Outcome After Out-of-Hospital Cardiac Arrest: Implications for Prolonging or Terminating Resuscitation.
作者: Joshua C Reynolds.;Brian E Grunau.;Jon C Rittenberger.;Kelly N Sawyer.;Michael C Kurz.;Clifton W Callaway.
来源: Circulation. 2016年134卷25期2084-2094页
Little evidence guides the appropriate duration of resuscitation in out-of-hospital cardiac arrest, and case features justifying longer or shorter durations are ill defined. We estimated the impact of resuscitation duration on the probability of favorable functional outcome in out-of-hospital cardiac arrest using a large, multicenter cohort.
340. Association Between a Prolonged PR Interval and Outcomes of Cardiac Resynchronization Therapy: A Report From the National Cardiovascular Data Registry.
作者: Daniel J Friedman.;Haikun Bao.;Erica S Spatz.;Jeptha P Curtis.;James P Daubert.;Sana M Al-Khatib.
来源: Circulation. 2016年134卷21期1617-1628页
A prolonged PR interval is common among cardiac resynchronization therapy (CRT) candidates; however, the association between PR interval and outcomes is unclear, and the data are conflicting.
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