DAS difficult airway society guidelines 2023 2024 unanticipated difficult intubation management algorithm

Medical diagram: DAS 2025 Difficult Airway Algorithm flowchart for anaesthesia. Shows four plans in a linear algorithm: Plan A (tracheal intubation - direct laryngoscopy and videolaryngoscopy, max 3 attempts), Plan B (supraglottic airway device - LMA/SAD insertion), Plan C (facemask ventilation - two-person technique, call for help), Plan D (emergency front-of-neck airway - surgical cricothyrotomy). Each plan box connected by arrows downward, with decision diamonds for "Success?" branching right to "Proceed with anaesthesia" and down to next plan. Color-coded: Plan A blue, Plan B green, Plan C orange, Plan D red. Labels for CICO (Cannot Intubate Cannot Oxygenate) at Plan D. Clean medical illustration style, white background, clear fonts.

Medical diagram: Mallampati Classification system for airway assessment showing four classes side by side. Class I: full visibility of soft palate, uvula, tonsillar pillars, fauces. Class II: soft palate, upper portion of uvula visible, no tonsillar pillars. Class III: soft palate and base of uvula visible only. Class IV: hard palate only visible. Each class shown as a clear open-mouth illustration from the examiner's view. Labels clearly showing Class I, II, III, IV below each drawing. Caption: "Modified Mallampati Classification - Classes III and IV predict difficult laryngoscopy." Clean anatomical illustration on white background.

Medical anatomical diagram showing the LEMON airway assessment mnemonic as an organized chart. Each letter in a colored box: L=Look externally (facial trauma, obesity, beard, large incisors, receding mandible), E=Evaluate 3-3-2 rule (mouth opening 3 fingers, hyoid-to-chin 3 fingers, thyroid-to-hyoid floor 2 fingers), M=Mallampati score (classes I-IV), O=Obstruction (epiglottitis, abscess, foreign body, tumor), N=Neck mobility (restricted in arthritis, cervical injury). Clean infographic style, each letter in a different color box, medical illustration font, white background with clear annotations.

Clean medical flowchart diagram titled "DAS 2025 Difficult Airway Algorithm" for anaesthesia. Four vertical plans with arrows flowing downward. Plan A box (blue): "Tracheal Intubation - Direct or Video Laryngoscopy, max 3 attempts, optimise position, BURP manoeuvre". Arrow down with "FAILED" label. Plan B box (green): "Supraglottic Airway Device - Insert LMA/i-gel, max 2 attempts". Arrow down with "FAILED" label. Plan C box (orange): "Face Mask Ventilation - Two-person technique, oropharyngeal airway, call for help". Arrow down with "CICO" label. Plan D box (red): "Emergency Front-of-Neck Airway (FONA) - Surgical Cricothyrotomy". Each box has a "SUCCESS" arrow pointing right to "Proceed / Maintain Oxygenation". Title in bold at top. White background, professional medical illustration style.

Medical educational diagram showing Modified Mallampati Classification, four classes arranged in a 2x2 grid. Each shows an open mouth view from examiner perspective. Class I (top left, green): soft palate, uvula, tonsillar pillars, fauces all visible. Class II (top right, yellow): soft palate and upper uvula visible, tonsillar pillars hidden. Class III (bottom left, orange): only soft palate base and uvula base visible. Class IV (bottom right, red): only hard palate visible, no soft palate. Each illustration clearly labelled. Caption below: "Classes III and IV predict difficult direct laryngoscopy". Clean anatomical illustration style, white background.

Medical flowchart: DAS 2025 Difficult Airway Algorithm. Four sequential plans with downward arrows labeled FAILED between them. Plan A (blue rectangle): Tracheal Intubation - videolaryngoscopy or direct laryngoscopy, optimise position, maximum 3 attempts. Plan B (green rectangle): Supraglottic Airway Device - LMA or i-gel, maximum 2 attempts. Plan C (orange rectangle): Face Mask Ventilation - two-person technique, oropharyngeal airway, call for help. Plan D (red rectangle): Emergency Front-of-Neck Airway FONA - Surgical Cricothyrotomy. Each plan has a SUCCESS arrow pointing right. Top label: Preoxygenate. Bottom warning box in red: CICO - Cannot Intubate Cannot Oxygenate. White background, clean medical style, bold headers.

Modified Mallampati Classification diagram for medical education. Four open-mouth views arranged in a row. Class I (green border): soft palate, uvula, fauces, tonsillar pillars all fully visible. Class II (yellow border): soft palate and upper uvula visible, pillars obscured by tongue. Class III (orange border): soft palate base and base of uvula only visible. Class IV (red border): hard palate only visible. Each has a label below. Subtitle: Classes III and IV indicate predicted difficult laryngoscopy. Clean anatomical illustration, white background, simple line art style.