61 results
Differential Diagnosis of Syncope
First, is it syncope? History is very important for distinguishing syncope from other
from other causes ... Common causes of ... associated symptoms are ... #Causes #Differential ... #Algorithm #Ddxof
Syncope - Differential Diagnosis
The percentage of syncopal events secondary to arrhythmias or structural disease is generally
Syncope - Differential ... percentage of syncopal ... Sick sinus, AV block ... stenosis • HOCM • Pulmonary ... differential #diagnosis #causes
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
with syncope • ... RBBB/LBBB with syncope ... Class Ill: • Syncope ... arrest, prolonged PR ... • Reversible causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... Respiratory: • Pulmonary ... /3rd degree AV Block ... #causes
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
- Vasovagal syncope ... bradycardia • Sinus pauses ... • AV block ... • Massive PE ... Classification #Table #Causes
Causes of Approach to Altered Level of Consciousness - Workup
Clinical Exam - Focal
 • Trauma
 •
Causes of Approach ... Consciousness - Workup ... • See Imaging Section ... Refer to Blood Work ... #algorithm #Causes
Syncope - Differential Diagnosis Framework
Reflex Syncope:
• Vasovagal: Prolonged standing, Stress, Pain
• Situational: Coughing, Sneezing, Micturition, Defecation,
Syncope - Differential ... Framework Reflex Syncope ... bradycardia, Sinus pauses ... , AV block • Tachyarrhythmias ... stenosis, HOCM, PE
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
Algorithm History ... life-threatening causes ... Pneumothorax • Pulmonary ... Well score for PE ... Pain #Diagnosis #Algorithm
WOBBLER  for ECG assessment in Syncope 
W - Wolff Parkinson White 
O - Obstructed AV
- Bifascicular block ... look for a short PR ... , can be caused ... ) are hypertrophic ... characteristically cause
Hypereosinophilia Different Diagnosis and Workup
Secondary causes are broad so start with a med review, the most
Diagnosis and Workup ... Secondary causes ... are broad so start ... the most common cause ... #algorithm