The most common misdiagnoses of Multifocal Atrial Tachycardia are atrial fibrillation (Afib) and sinus tachycardia. Since the treatment of each of these dysrhythmias is different, it is imperative for the emergency provider to correctly diagnose MAT.
Acute aortic dissection (AD) is defined as a tear through the intima, which results in the flow of arterial blood between the layers of the aorta. This intimal tear is…
In Aortic Dissection, a defect in the aortic intima allows entry of blood into the tunica media. A false lumen develops and can propagate in an anterograde or retrograde direction. Aortic Dissections that involve the ascending aorta (Stanford type A) can cause coronary insufficiency by several mechanisms.
Diverse plants are sources of sugarcontaining compounds (glycosides) that also contain a steroid ring and augment the contractile force of heart muscle : cardiotonic glycosides / cardiosteroids, or “digitalis”. If…
Risk factors for Aortic Aneurysm: smoking, male sex, age, pre-existing atherosclerosis, obesity, Hyperlipidemia, HTN (Hypertension), Family History
![Read more about the article Conduction Blocks at the AV Node (AV Blocks) [With Examples]](https://manualofmedicine.com/wp-content/uploads/2021/05/Excerpt-AV-Blocks-768x623.jpg)
When there are conduction problems at the AV node or bundle of His, conduction of impulses between the atria and ventricles is affected. This can take several forms or ‘degrees’.…
Approach all EKGs systemically. Always note: rate, rhythm, QRS axis, complexes and intervals, chamber enlargement, ischemia/infarction, compare with prior EKG.
The classic presentation of an acute coronary syndrome (ACS) is that of an older age male smoker with hypertension who reports exertional chest pressure that radiates to the left upper…
Annually, almost 6 million patients present to the emergency department with a chief complaint of chest pain. Thankfully, the majority will not have an acute coronary syndrome (ACS) as the…
Infective endocarditis (IE) is a bacterial or fungal infection of the heart valves or perivalvular structures and is a highly morbid condition associated with significant in-hospital mortality. The morbidity of…