Transient Loss of Consciousness (TLoC) Flashcards
What is Transient Loss of Consciousness (TLoC)?
Spontaneous loss of consciousness with full recovery without any residual neurological deficit.
What are 3 common causes of TLoC?
cardiovascular disorders,
neurological conditions (e.g., epilepsy),
psychogenic attacks.
What is a structural cardiac cause of TLoC?
Myocardial Infarction: Impacts systemic function due to non-conductive, non-contractile tissue.
What is another structural cardiac cause of TLoC?
Valvular Heart Disease: Heart valve failure can lead to TLoC.
What condition can cause TLoC related to cardiomyopathy?
Conditions like hypertrophic cardiomyopathy and aortic stenosis can cause TLoC.
What are bradyarrhythmias?
Bradyarrhythmias include conditions like Sick Sinus Syndrome and various heart blocks.
What is Sick Sinus Syndrome?
Abnormal pacing of electrical signals, increasing risk with age.
What characterizes 2nd Degree T1 (Wenckebach)?
Increasing delay at AV node until a P wave is not conducted.
What characterizes 2nd Degree T2 (Mobitz)?
Sudden loss of a QRS wave due to non-transmission of the P wave.
What is 3rd Degree heart block?
Complete heart block with independent atrial and ventricular beats.
What are LBBB and RBBB?
Delayed impulses leading to widened QRS.
What is Supraventricular Tachycardia (SVT)?
Includes atrial fibrillation, flutter, and tachycardia.
What is Atrial Fibrillation?
Irregular and rapid heart rhythm from random pacemaker cell firing.
What characterizes Atrial Flutter?
Characterized by a ‘saw tooth’ pattern.
What is Vasovagal Syncope?
Triggered by pain or emotional upset, causing autonomic dysfunction.