31 results
Local Anaesthetic Toxicity - Guidelines for Crises in Anaesthesia
Signs of severe toxicity:
 • Sudden alteration in
Local Anaesthetic ... Guidelines for Crises ... in Anaesthesia Signs ... bradycardia, conduction blocks ... Guidelines for crises
High Central Neuraxial Block - Guidelines for Crises in Anaesthesia
• Can occur with deliberate or accidental
Central Neuraxial Block ... accidental injection of local ... Consider other causes ... that may mimic signs ... • Local anaesthetic
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Definition: A focal ... • Infectious Causes ... Non-Infectious Causes ... Reverse #Halo #Sign
Hypotension - Guidelines for Crises in Anaesthesia

Hypotension is commonly due to unnecessarily deep anaesthesia, the autonomic
effects of neuraxial block ... hypovolaemia or combined causes ... pressure as a cause ... tamponade → 3-9 o Local ... o Endocrine cause
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
rhythm, Conduction blocks ... system: Conduction blocks ... tachycardias (PST), Focal ... Differential #Diagnosis #Causes
Cardiac Tamponade - Guidelines for Crises in Anaesthesia
Caused by an accumulation of blood, pus, effusion fluid
in Anaesthesia Caused ... or iatrogenic causes ... examination and vital signs ... of underlying cause ... • Infiltrate local
Features of a Sickle Cell Crisis 
Sickle-cell disease - an autosomal recessive blood disorder.
Characterized by red
cells can go on to block ... Crises can be precipitated ... exclusively affects black ... Crisis #Features #Signs
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
extrapulmonary cases ... Clinical Signs ... years - May have signs ... pulmonary TB PE: - Local
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Causes of Secondary ... non-obese, non-black ... hypertension and signs ... renal bruit or signs ... Causes: • Vascular
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
-> Diffuse and focal ... hyalinization causes ... BRB breakdown causes ... disc arterioles causes ... ophthalmology #diagnosis #signs