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Oster AND cardiac

Philippe Grieshaber, Tobias Schneider, Lukas Oster, Coskun Orhan, Peter Roth, Bernd Niemann, Andreas Böning
INTRODUCTION: Prophylactic intra-aortic balloon counterpulsation (pIABC) is recommended for high-risk patients undergoing coronary artery bypass grafting (CABG) surgery. Criteria for high-risk patients benefiting from pIABC are unclear. This study aimed to specifically describe the effect of pIABC on outcomes of patients with acute myocardial infarction (AMI) undergoing CABG. METHODS: In 178 of 484 AMI patients (non-ST-segment elevation myocardial infarction [NSTEMI] or ST-segment elevation myocardial infarction [STEMI] ≤5 days before surgery) without cardiogenic shock who underwent CABG between 2008 and 2013, pIABC was initiated preoperatively...
February 1, 2018: Perfusion
Rahi Abouk, Scott D Grosse, Elizabeth C Ailes, Matthew E Oster
Importance: In 2011, critical congenital heart disease was added to the US Recommended Uniform Screening Panel for newborns, but whether state implementation of screening policies has been associated with infant death rates is unknown. Objective: To assess whether there was an association between implementation of state newborn screening policies for critical congenital heart disease and infant death rates. Design, Setting, and Participants: Observational study with group-level analyses...
December 5, 2017: JAMA: the Journal of the American Medical Association
Philippe Grieshaber, Peter Roth, Lukas Oster, Tobias M Schneider, Gerold Görlach, Bernd Nieman, Andreas Böning
OBJECTIVES: Haemodynamically stable patients admitted for coronary artery bypass grafting in acute myocardial infarction often undergo delayed surgery in order to avoid the risks of emergency surgery. However, initially stable patients undergoing delayed surgery may develop low cardiac output syndrome (LCOS) during the waiting period, which might be a major drawback of this strategy. We aim to define risk factors and clinical consequences of LCOS during the waiting period. METHODS: A total of 530 consecutive patients with acute myocardial infarction (33% non-ST-segment elevation myocardial infarction and 67% ST-segment-elevation myocardial infarction) underwent isolated coronary artery bypass grafting between 2008 and 2013...
November 1, 2017: Interactive Cardiovascular and Thoracic Surgery
Julien Oster, Gari D Clifford
The recording of the electrocardiogram (ECG) during magnetic resonance imaging (MRI) acquisition is of great interest and importance. Firstly, MRI acquisition is a relatively slow process, which therefore complicates the imaging of moving organs. Cardiac MRI requires the development of strategies for acquiring high quality images, which is mainly achieved by synchronising the image acquisition with a specific time during the cardiac cycle. The ECG is used to monitor the heart's activity, and the detection of the largest and steepest peak in the cardiac cycle (the QRS complex) triggers the acquisition of slices of the k-space...
June 22, 2017: Physiological Measurement
Jeffrey H Sacks, Michael Kelleman, Courtney McCracken, Michelle Glanville, Matthew Oster
OBJECTIVE: Hospital readmissions are increasingly becoming a metric for quality in the current landscape of changing and cost effective medicine. However, no 30-d readmission rates have been established for pediatric cardiac medical patients in the United States. Thus, the objective was to determine 30 d readmission rates and risk factors associated with readmission for pediatric cardiac patients, hypothesizing that pediatric cardiac patients would have significantly higher readmission rates than their general pediatric counterparts...
May 2017: Congenital Heart Disease
Jason Brazelton, Robert A Oster, Brandi McCleskey, Jessica Fuller, Jill Adamski, Marisa B Marques
Thrombotic thrombocytopenic purpura (TTP) has >90% mortality without therapeutic plasma exchange (TPE). Despite TPE, approximately 10% of patients still die, presumably from cardiac ischemia. We sought clinical or laboratory parameters associated with death by reviewing the records of all patients hospitalized with acquired TTP in our institution for 10 years, and collect demographics and results for hemoglobin, platelet count, creatinine, lactate dehydrogenase, transaminases, total bilirubin, creatinine kinase (CK), CK-MB, and troponin I...
September 26, 2016: Journal of Clinical Apheresis
Logan G Spector, Jeremiah S Menk, Jeffrey M Vinocur, Matthew E Oster, Brian A Harvey, James D St Louis, James Moller, Lazaros K Kochilas
BACKGROUND: The long-term outcomes of patients undergoing interventions for congenital heart disease (CHD) remain largely unknown. We linked the Pediatric Cardiac Care Consortium (PCCC) with the National Death Index (NDI) and the United Network for Organ Sharing Dataset (UNOS) registries to study mortality and transplant occurring up to 32 years postintervention. The objective of the current analysis was to determine the sensitivity of this linkage in identifying patients who are known to have died or undergone heart transplant...
August 9, 2016: Journal of the American Heart Association
Caitlin Stackpool, Nathan Boehlke, Teresa Corbisiero, Allison Haverkate, Mary Meyers, Cynthia Oster
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Tiffany Riehle-Colarusso, Matthew E Oster
No abstract text is available yet for this article.
July 2016: Pediatrics
Heather M Phelps, Ritu Sachdeva, William T Mahle, Courtney E McCracken, Michael Kelleman, Michael McConnell, Peter S Fischbach, Brian M Cardis, Robert M Campbell, Matthew E Oster
OBJECTIVE: To determine whether implementation of a standardized clinical practice guideline (CPG) for the evaluation of syncope would decrease practice variability and resource utilization. DESIGN: A retrospective review of medical records of patients presenting to our practice for outpatient evaluation of syncope before and after implementation of the CPG. The guideline included elements of history, physical exam, electrocardiogram, and "red flags" for further testing...
May 2016: Congenital Heart Disease
Julien Oster, Gari D Clifford
Atrial fibrillation (AF) is the most common cardiac arrhythmia, but is currently under-diagnosed since it can be asymptomatic. Early detection of AF could be highly beneficial for the prevention of stroke, which is one major risk associated with AF, with a five fold increase. mHealth applications have been recently proposed for early screening of paroxysmal AF. Several automatic AF detections have been suggested, and they are mostly based on features extracted from the RR interval time-series, since this is more robust to ambulatory noise than p-wave based algorithms...
November 2015: Journal of Electrocardiology
Makoto Mori, Joshua M Rosenblum, Wendy Book, Matt Oster, Brian Kogon
BACKGROUND: Adult patients with CHD often require complex operations, and indications for particular aspects of the operation are sometimes unclear. The aims of our study were as follows: to characterise concomitant procedures performed during adult congenital cardiac surgery, and to better define the risk involved with performing concomitant procedures during a single operation. METHODS: We retrospectively studied 458 adult congenital cardiac surgical patients...
June 2016: Cardiology in the Young
Alistair E W Johnson, Joachim Behar, Fernando Andreotti, Gari D Clifford, Julien Oster
The electrocardiogram (ECG) is a well studied signal from which many clinically relevant parameters can be derived, such as heart rate. A key component in the estimation of these parameters is the accurate detection of the R peak in the QRS complex. While corruption of the ECG by movement artefact or sensor failure can result in poor delineation of the R peak, use of synchronously measured signals could allow for resolution of the R peak even scenarios with poor quality ECG recordings. Robust estimation of R peak locations from multimodal signals facilitates real time monitoring and is likely to reduce false alarms due to inaccurate derived parameters...
August 2015: Physiological Measurement
Ikaro Silva, Benjamin Moody, Joachim Behar, Alistair Johnson, Julien Oster, Gari D Clifford, George B Moody
This editorial reviews the background issues, the design, the key achievements, and the follow-up research generated as a result of the PhysioNet/Computing in Cardiology (CinC) Challenge 2014, published in the concurrent focus issue of Physiological Measurement. Our major focus was to accelerate the development and facilitate the comparison of robust methods for locating heart beats in long-term multi-channel recordings. A public (training) database consisting of 151 032 annotated beats was compiled from records that contained ECGs as well as pulsatile signals that directly reflect cardiac activity, and other signals that may have few or no observable markers of heart beats...
August 2015: Physiological Measurement
Regina M Simeone, Matthew E Oster, Charlotte A Hobbs, James M Robbins, R Thomas Collins, Margaret A Honein
BACKGROUND: Individuals with congenital heart defects (CHDs) have high hospital resource use. We sought to identify factors associated with hospital costs and multiple hospitalizations among individuals with CHDs. METHODS: Data from the 2006 to 2011 Healthcare Cost and Utilization Project Arkansas State Inpatient Databases were linked across encrypted patient identifiers to develop a cohort of Arkansas residents aged 1 to 64 years who were hospitalized at least once with a CHD during this time period...
July 2015: Birth Defects Research. Part A, Clinical and Molecular Teratology
David Hurst, Daniel A Hirsh, Matthew E Oster, Alexandra Ehrlich, Robert Campbell, William T Mahle, Michael Mallory, Heather Phelps
BACKGROUND: The American Heart Association recommends a "meticulous history" when evaluating patients with an initial episode of syncope. However, little is known about which historical features are most helpful in identifying children with undiagnosed cardiac syncope. OBJECTIVES: Our objectives were 1) to describe the cardiac disease burden in Emergency Department (ED) syncope presentations, and 2) to identify which historical features are associated with a cardiac diagnosis...
July 2015: Journal of Emergency Medicine
Brian E Kogon, Kirk Kanter, Bahaaldin Alsoufi, Kevin Maher, Matthew E Oster
BACKGROUND: Although much is known about morbidity and mortality, there are limited data focussing on the financial aspect of the Norwood operation. Our objective is to characterise the hospitalisation and detail the hospital costs. METHODS: We retrospectively studied 86 newborns with hypoplastic left heart syndrome who underwent Norwood palliation between 2008 and 2012. Clinical and financial data were collected. Financial data have been reported for 2011-2012...
June 2015: Cardiology in the Young
Vikram Oke, Rakesh Vadde, Saurav Pokharel, Bikash Bhattarai, Prajakta Mungikar, Joseph Quist, Danilo Enriquez, Francis Schmidt
Critical Care Case Report Posters IIISESSION TYPE: Affiliate Case Report PosterPRESENTED ON: Tuesday, October 28, 2014 at 01:30 PM - 02:30 PMINTRODUCTION: Pentamidine is used for treating Pneumocystis jiroveci pneumonia (PCP) in patients with intolerance or no response to Trimethoprim-Sulphamethoxazole. QT prolongation and Polymorphic Ventricular Tachycardia (VT) have been observed temporally following IV administration (1). Delayed occurrence of VT after discontinuation of Pentamidine is rare. We present such a rare case...
October 1, 2014: Chest
Bahaaldin Alsoufi, Cedric Manlhiot, Alexandra Ehrlich, Matthew Oster, Brian Kogon, William T Mahle, Kevin Maher, Brian W McCrindle, Kirk Kanter
OBJECTIVES: Pulmonary artery banding is the initial palliative surgery in patients with single ventricle cardiac anomalies presenting with unrestricted pulmonary blood flow. Reported mortality in those receiving pulmonary artery banding is high, and its application in patients with single ventricle anomalies and arch obstruction is controversial. We report current-era results after pulmonary artery banding in patients with single ventricle anomalies, including those with arch obstruction...
January 2015: Journal of Thoracic and Cardiovascular Surgery
Julien Oster, Raul Llinares, Stephen Payne, Zion Tsz Ho Tse, Ehud Jeruham Schmidt, Gari D Clifford
The electrocardiogram (ECG) is often acquired during magnetic resonance imaging (MRI), but its analysis is restricted by the presence of a strong artefact, called magnetohydrodynamic (MHD) effect. MHD effect is induced by the flow of electrically charged particles in the blood perpendicular to the static magnetic field, which creates a potential of the order of magnitude of the ECG and temporally coincident with the repolarisation period. In this study, a new MHD model is proposed by using MRI-based 4D blood flow measurements made across the aortic arch...
2015: Computer Methods in Biomechanics and Biomedical Engineering
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