Predictors of Difficult Bag-Mask Ventilation
7 parts
Predictors of Difficult Supraglottic Airway Insertion
Reduced mouth opening
Obstruction at or below glottis
Distorted airway
Stiff neck or lungs
Pre-Operative Airway Assessment
10 components
Airway “Red Flag” Conditions: Anatomical
Receeding mandible; buck teeth
Modified Mallampati Score 1
Soft palate; tonsillar fauces; tonsillar pillars; uvula visualised
easy intubation
Modified Mallampati Score 2
Soft palate; tonsillar fauces; uvula visualised
mildly difficult intubation
Modified Mallampati Score Class 3
Soft palate; base of uvula visualised
Very difficult intubation
Modified Mallampati Score 4
Soft palate not visible
Near impossibe intubation
Airway “Red Flag” Conditions: Congential
Downs syndrome; Treacher-Collins
Down’s: Due to large tongue and neck subluxation
Airway “Red Flag Conditions”: Inflammatory
Scleroderma; ankylosing spondylitis; rheumatoid arthritis
Airway “Red Flag” Conditions: Infectious
Retropharyngeal abcess; submandibular abcess; acute epiglottitis
Airway “Red Flag” Conditions: Traumatic
Fac/neck trauma; foreign bodies
Airway “Red Flag” Conditions: Endocrine
Goitre; acromegaly; obesity
Major Predictors for Adverse Cardiac Events in Surgery
Heart failure
Unstable angina
Elderly
Poor general medical status
Aortic stenosis
Cerebrovascular Disease
Emergency operation
Recent myocardial infarction
Risk Factors for Post-Operative Nausea and Vomiting
Surgeries that increase the risk of Post-OPerative Nausea and Vomiting
Anaesthetics that increase risk of Post-Operative Nausea and Vomiting