13 results
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Approach to ECGs - Ischemia ... Equivalents / Don't Miss Signs ... of Ischemia - ... bigger than QRS - deWinter ... Wong @mchlwng #Ischemia
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
J point • De Winter ... symmetrical T-waves ... V2 • Wellens sign ... pain • Wellens sign ... deviation) • Acute ischemia
Checklist Approach to Hypokalemia

Consider risk factors for arrhythmia:
 - EKG changes (especially QT prolongation)
 - Digoxin
Checklist Approach ... - Myocardial ischemia ... DKA (either via central ... Critical Care #Checklist ... #Hypokalemia #Management
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
is unconscious, signs ... of cardiac ischaemia ... depression • T wave ... Intraoperative #Checklist ... #Diagnosis #Management
High Central Neuraxial Block - Guidelines for Crises in Anaesthesia
• Can occur with deliberate or accidental
High Central Neuraxial ... that may mimic signs ... anaesthesia #High #Central ... Intraoperative #Checklist ... #Diagnosis #Management
Local Anaesthetic Toxicity - Guidelines for Crises in Anaesthesia
Signs of severe toxicity:
 • Sudden alteration in
in Anaesthesia Signs ... alteration in mental ... emulsion (Box A). ❼ Control ... Intraoperative #Checklist ... #Diagnosis #Management
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... < 30 years • Aorta ... Arteritis): • Aorta ... Angiitis of the Central ... gastrointestinal, and/or central
Intraoperative Circulatory Embolus - Guidelines for Crises in Anaesthesia
Causes: thrombus, fat, amniotic fluid, air/gas.
Signs: hypotension, tachycardia,
Signs: hypotension ... mainstay of initial management ... possible • If central ... Intraoperative #Checklist ... #Diagnosis #Management
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
: • Purpura, ischemic ... < 30 years - Aorta ... branches • GCA: - Aorta ... gastrointestinal, and/or central ... purpura: strong sign
Atrial Fibrillation (A-Fib) Summary

Symptoms:
• Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

Why?
Cardiac:
	• Valvular heart
Decompensated HF • New ischemia ... • Absence of P waves ... Versus Rhythm Control ... Rhythm-control ... AFib #diagnosis #management