38 results
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
maintained fever CAUSES ... hyperthermia crisis (late sign ... • Serotonin syndrome ... #Differential #Causes ... Anesthesiology #Anesthesia
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... polyneuropathy (e.g ... Guillain-Barré syndrome ... Hyperthyroidism, Serotonin syndrome ... differential #diagnosis #table
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
Guidelines for Crises ... is unconscious, signs ... CM5 continuous ECG ... Obtain a 12-lead ECG ... Anesthesiology #Anesthesia
Cardiac Tamponade - Guidelines for Crises in Anaesthesia
Caused by an accumulation of blood, pus, effusion fluid
in Anaesthesia ... , e.g. central line ... pericardiocentesis kit (eg ... examination and vital signs ... Anesthesiology #Anesthesia
Intraoperative Anaphylaxis - Guidelines for Crises in Anaesthesia
• Unexplained hypotension
• Unexplained bronchospasm (wheeze may be absent
arrest where other causes ... of more of the signs ... alternate vasopressor (e.g ... as patient is stable ... Anesthesiology #Anesthesia
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
involvement: Intractable nausea ... Other brainstem syndromes ... (e.g. oculomotor ... deficits ranging from paresthesia ... neurology #symptoms #signs
Intraoperative Circulatory Embolus - Guidelines for Crises in Anaesthesia
Causes: thrombus, fat, amniotic fluid, air/gas.
Signs: hypotension, tachycardia,
Causes: thrombus ... Signs: hypotension ... Consider thrombolysis e.g ... over 2 h (>65 kg ... Anesthesiology #Anesthesia
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Causes: • Large ... lumbar spine Signs ... Incontinence • Saddle Anesthesia ... #CaudaEquina #Syndrome
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
IV Mg infusion (e.g ... - Tumor lysis syndrome ... High #Magnesium #Table ... #Causes #Management
Syncope is a sudden, transient loss of consciousness, which is thought to be secondary to cerebral
cardiac syncope, e.g ... frequently benign causes ... carotid sinus syndrome ... orthostatic vital sign ... and an initial ECG