77 results
Loss of Consciousness in Syncope - Differential Diagnosis Framework

Syncopal causes:
• Orthostatic syncope
• Reflex syncope
• Cardiac arrhythmia
•
- Differential ... causes: • Orthostatic ... syncopeCardiac ... Nonsyncopal causes ... hypoglycemia) • Psychiatric
Arrhythmias - Differential Diagnosis Algorithm
May present as: palpitations, dizziness, syncope, chest discomfort
Cardiac Causes:
 - Structural
Arrhythmias - Differential ... palpitations, dizziness, syncope ... • Cocaine - Psychiatric ... #Arrhythmias #Cardiology ... #Differential #
Syncope - Cerebral hypoperfusion leading to transient lsos of consciousness causing alck of postural tone with
immediate recovery Differential ... : • Cardiac ( ... cause (8-20%) ... • Unclear cause ... #differential #
Causes of Palpitations
 • ARRHYTHMiA 
 • SINUS ARRYTHMIA 
 • ATRIAL FIBRILLATION 
 • ATRIAL
Causes of Palpitations ... SYPATHOMIMETICS • CARDIAC ... • HYPOXIA PSYCHIATRIC ... #Differential # ... Diagnosis #Cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... Sinus tachycardia ... #differential # ... diagnosis #causes ... #cardiology
Myocarditis - Diagnosis and Causes
 • Clinical presentation: Pseudo-acute coronary syndrome, Cardiac failure <3 rnonths, Cardiogenic
coronary syndrome, Cardiac ... ventricular arrythmia, syncope ... Troponin Increases, Cardiac ... #Myocarditis #differential ... #cardiology #MRI
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diuretics) • TIA • Psychiatric ... • Migraine Cardiac ... #Cardiology #Differential ... Diagnosis #Algorithm #causes
Causes of Dizziness / Lightheadedness - Differential Diagnosis Algorithm
Lightheaded, unsteady, disoriented - Non-vertigo
Organic Disease
 • Presyncope/Vasodepressor
Causes of Dizziness ... Lightheadedness - Differential ... /Vasodepressor Syncope ... • Cardiac Arrhythmia ... Problem • Drugs Psychiatric
Causes of Falls in the Elderly - Differential Diagnosis Algorithm
- Intrinsic Factors - 
Presyncope / Syncope
Causes of Falls ... Presyncope / Syncope ... • Cardiac • ... Non-Cardiac Sensory ... Neurological / Psychiatric
Syncope - Differential Diagnosis
The percentage of syncopal events secondary to arrhythmias or structural disease is generally
Syncope - Differential ... percentage of syncopal ... Volume depletion Cardiac ... #differential # ... diagnosis #causes