2912 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
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
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
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
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

NEUROLOGICAL
 - CVA/Stroke
 - Cancer
 - Carotid Stenosis
 - Parkinson’s Disease
 - Psychosis
 -
Causes of Syncope ... Hypovolemia - Orthostatic ... Urination #Syncope ... #Causes #Differential
Clozapine Toxicology
Clozapine is an atypical antipsychotic most often reserved for use in patients who have treatment-resistant
Clozapine is known to cause ... increased risk of orthostatic ... bradycardia, and syncope