A 76-year-old female, with medical history significant for systolic congestive heart failure, who presented to the emergency department with lethargy and abdominal pain with diarrhea for the past 3 weeks. Due to hypotension, the patient received multiple boluses of isotonic saline and was started on norepinephrine. Laboratories were significant for severe digoxin toxicity (29 ng/mL), in setting...

OBJECTIVES Most US hospitals lack primary percutaneous coronary intervention (PCI) capabilities to treat patients with ST-elevation myocardial infarction (STEMI) necessitating transfer to PCI-capable centers. Transferred patients rarely meet the 120-minute benchmark for timely reperfusion, and referring emergency departments (EDs) are a major source of preventable delays. We sought to use more ...

BACKGROUND Chagas disease (CD) is a major cause of cardiomyopathy in Latin America, and migration movements have now spread the disease worldwide. However, data regarding Chagas cardiomyopathy (CC) and the usefulness of echocardiography in non endemic countries are still scarce. METHODS AND RESULTS We selected 485 patients in the chronic phase of CD from two Spanish settings. Data from physic...

We examined for myocardial ischemia induced by continuous inhalation of fenoterol in children with severe acute asthma. Thirty children with severe acute asthma were evaluated for signs of myocardial ischemia when treated with 0.5 mg kg dose (maximum 15 mg) of inhaled fenoterol for one hour. The heart rate was measured before and after inhalation. Cardiac enzymes (creatine kinase, creatine kina...

Methods We studied 90 consecutive patients without myocardial infarctions (mean age 53 years, 50% female) referred for CMR with T1 mapping that had a 12 lead EKG within 90 days. Numerous EKG parameters were evaluated visually and electronically (heart rate, PR duration, QRS amplitude and duration, QRS morphology, QRS-T angle, QRS fragmentation, T wave amplitude, QTc duration, corrected QT peak ...

During the detection of late potentials a large number of heartbeats is rejected due to the artifact corruption of the EKG. In this paper we investigate the possibility of decreasing this rejection through the removal of the artifacts based on the analysis of the EKG using its statistically independent components.. Using this procedure a 53% increase on the heart beat acceptance ratio was obtai...

Our project aims at testing various measures of chaos in time series data from an electrocardiogram (EKG). We examine data from three types of patients who we assume to produce varying EKG dynamics. We use time-delay embedding and calculate correlation dimensions to determine if the data is chaotic or random. Our results indicate that there is some evidence of deterministic chaotic behavior in ...