Archive for category: Cardiovascular

Update on Age-Adjusted D-Dimer

11 Jul
July 11, 2014

D-dimer has been shown to increase with age, which can cause a lower specificity (i.e. more false positive tests) in older patients. The result of this would be that older patients would often have more diagnostic imaging or downstream testing, but on the other hand, maybe a higher cut-off d-dimer value may lead to increased […]

R.E.B.E.L. ECG of the Week: LBBB and STEMI

09 Jun
June 9, 2014

R.E.B.E.L. ECG of the Week

89 year old male with PMH of hypertension, stage 3 chronic kidney disease with chief complaint of shortness of breath. Several days ago patient had a laminectomy for radicular pain. He was doing fine post-operatively and began to develop gradual shortness of breath.  He had no complaints of chest pain, nausea/vomiting, fevers, diaphoresis, but did have some weakness.  There were no prior ECGs for comparison.

BP: 98/48 HR: 103 RR: 18 O2 on RA: 94% Temp: 38.6

JVD to the angle of the mandible
Bibasilar Crackles
Sinus Tachycardia
Bilateral lower extremity pitting edema

Labs: Na 125, K+ 4.2, Creatinine 2, BNP > 2500

ECG from triage is shown… Read more →

Left Ventricular Assist Device

29 May
May 29, 2014

The first left ventricular assist device (LVAD) was performed in 1984 and since that time there is an increasingly growing population of patients with LVADs.  This means ED physicians will be seeing more and more of these patients in the ED and should have a basic understanding of how these devices work and have an […]

Rivaroxaban for Treatment of Symptomatic Pulmonary Embolism

26 May
May 26, 2014

Typically, the treatment of acute pulmonary embolism consists of administration of unfractionated heparin or low molecular weight heparin (i.e. enoxaparin) overlapped with vitamin K antagonists (i.e. warfarin).  This can be a very effective treatment regimen, but also very complex.  New direct Xa inhibitors are being used more and more in clinical practice with prevention of venothromboembolism […]

Age Adjusted D-Dimer Testing

28 Apr
April 28, 2014

D-dimer testing is sensitive for thrombus formation, and in patients who are not high risk, this test is used to rule-out venous thromboembolism. D-dimer has been shown to increase with age, which can cause a lower specificity (i.e. more false positive tests) in older patients.  Specificity can range from 49 – 67% in patients ≤ 50 […]

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