26 results
Loss of Consciousness in Syncope - Differential Diagnosis Framework

Syncopal causes:
• Orthostatic syncope
• Reflex syncope
• Cardiac arrhythmia
•
Consciousness in Syncope ... causes: • Orthostatic ... syncope • Reflex ... syncope • Cardiac ... Nonsyncopal causes
Syncope - Cerebral hypoperfusion leading to transient lsos of consciousness causing alck of postural tone with
Syncope - Cerebral ... Cardiac (5-21%) • Orthostatic ... cause (8-20%) ... • Unclear cause ... (17-37%) Non-Syncope
Syncope is a sudden, transient loss of consciousness, which is thought to be secondary to cerebral
frequently benign causes ... syndrome) and orthostatic ... life-threatening causes ... examination, including orthostatic ... In many cases, syncope
Differential Diagnosis of Syncope
First, is it syncope? History is very important for distinguishing syncope from other
from other causes ... Ask about precipitating ... Common causes of ... syncope and their ... #Causes #Differential
Syncope - Differential Diagnosis
The percentage of syncopal events secondary to arrhythmias or structural disease is generally
Syncope - Differential ... percentage of syncopal ... - Others Orthostatic ... Others Non-syncopal ... differential #diagnosis #causes
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
- Vasovagal syncope ... - Situational syncope ... bradycardia • Sinus pauses ... • Massive PE Orthostatic ... Classification #Table #Causes
Syncope - Differential Diagnosis Framework
Reflex Syncope:
• Vasovagal: Prolonged standing, Stress, Pain
• Situational: Coughing, Sneezing, Micturition, Defecation,
Syncope - Differential ... Framework Reflex Syncope ... hypersensitivity Orthostatic ... Syncope: • Volume ... bradycardia, Sinus pauses
Causes of Dizziness / Lightheadedness - Differential Diagnosis Algorithm
Lightheaded, unsteady, disoriented - Non-vertigo
Organic Disease
 • Presyncope/Vasodepressor
Causes of Dizziness ... /Vasodepressor Syncope ... Arrhythmia • Orthostatic ... Diagnosis #Algorithm #Causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Vasovagal • Orthostatic ... Tachy-Brady Syndrome #Syncope ... Diagnosis #Algorithm #causes
Causes of Syncope - Differential Diagnosis Algorithm
Cardiac - Arrhythmia:
 • Tachyarrhythmia
 • Bradyarrhythmia
 • Supraventricular Tachycardia
Causes of Syncope ... Embolus • Other Orthostatic ... Carotid Sinus Syncope ... Defecation #Syncope ... Diagnosis #Algorithm #Causes