30 results
Stridor - Differential Diagnosis Framework:
High-pitched, variable respiratory sound

ETIOLOGIES:
Infectious:
 • Retropharyngeal abscess
 • Acute epiglottitis
 • Peritonsillar
Allergic/Immune: • Anaphylaxis ... • Hereditary ... angioedema Congenital ... malformations • Anaphylaxis ... differential #diagnosis #causes
Facial Swelling from Hereditary Angioedema on Physical Examination

19 year old Hereditary Angioedema (HAE) patient from Turkey.
Swelling from Hereditary ... Angioedema on Physical ... 19 year old Hereditary ... Angioedema (HAE ... #Angioedema #clinical
Tranexamic Acid - Indications and Pharmacology
Pharmacokinetics:
 • MOA: Inhibits plasminogen activation to plasmin & inhibits fibrinolysis
swelling in w/ hereditary ... angioedema) • ... : Urine Common Uses ... rapid injection; Nausea ... Hypersensitivity & anaphylaxis
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Angioedema - Classification ... Acute allergic angioedema ... urticaria • Hereditary ... angioedema - Rare ... cell-mediated in > 90% of cases
Clinical manifestations of anaphylaxis. 
Neurological (<15%): Dizziness, syncope, seizures, Confusion, impending doom. headache
Angioedema: Lips, tongue, orbit,
Clinical manifestations ... of anaphylaxis. ... doom. headache Angioedema ... arrest GI (>40%): Nausea ... incontinence #anaphylaxis
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... deposition disease, hereditary ... angioedema A -
Manifestations of Anaphylaxis by Body System

Dermatologic/mucosal

 - Eyes: periorbital swelling/erythema, injected conjunctiva, tears

 - Oral mucosa:
Manifestations of Anaphylaxis ... - Oral mucosa: angioedema ... piloerection, angioedema ... Gastrointestinal - Nausea ... Signs #Symptoms #Anaphylaxis
Causes of Angioedema: Differential Diagnosis Framework
Mast-cell mediated:
 • IgE dependent allergic reactions: Food, Drugs, Latex, Stings
Causes of Angioedema ... mediated: • ACEi • Hereditary ... inhibitor deficiency (hereditary ... angioedema) • ... Differential #Diagnosis #Causes
Intraoperative Anaphylaxis - Guidelines for Crises in Anaesthesia
• Unexplained hypotension
• Unexplained bronchospasm (wheeze may be absent
Intraoperative Anaphylaxis ... bradycardia • Angioedema ... arrest where other causes ... arrest trolley, anaphylaxis ... an appropriate critical
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... and clinical associations ... Female predominance Anaphylaxis ... lesions - Wheals/angioedema ... fever, fatigue, Nausea