10 results
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
Midcarpal Instability (MCI ... slightly extended, and ... extensors (ECU, ... #msk #orthopedics ... #clinical #video
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
= Biomarkers + ECG ... upsloping ST dep and ... #Ischemia #ECG ... #EKG #diagnosis ... #STEMI #Equivalents
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
STEMI Equivalents ... on ECG • Conventional ... segment at (or 40-60 ms ... after) the J point ... #ECG #EKG #diagnosis
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
is gradual • After ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... Short QT <300-360 ms ... #Approach #ECG ... #EKG #diagnosis ... electrocardiogram #cardiology
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
diagnosed? ... tendon, MRI or ... #physicalexam #video ... #Orthopedics #Wrist ... #msk
Algorithm for choosing the appropriate candidate for stress testing in patients with suspected coronary artery disease
suspected coronary artery ... (MI = myocardial ... MET = metabolic equivalent ... ; ECG = electrocardiography ... Shows the diagnosis
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
is gradual • After ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
mortality in inferior MI ... RV dysfunction. e.g ... forward flow. e.g ... Ahmed Ghoneem, MD MSc ... #catheter #diagnosis
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Highest metabolic equivalent ... indicated • EKG ... Obtain EKG if: ... Intraabdominal - Orthopedic ... stratification #diagnosis