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ECG-Case 01
 

ECG-Case 01

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ECG MADE EASY

ECG MADE EASY

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    ECG-Case 01 ECG-Case 01 Presentation Transcript

    • Case 1RespiratoryEmergencies© 2001 American Heart Association 1 1
    • Case PresentationPatient = 69-year-old man,smoker (4 packs/day) PMHx = severe COPD CC = severe shortness of breath; “hungry for air!” VS = not obtained; patient suddenly becomes unresponsive 2
    • Learning and Skills ObjectivesDescribe ACLS Approach (Primary andSecondary ABCD Surveys) in CPRDescribe and demonstrate the “airway hierarchy”: • Supplemental oxygen: – Nasal cannulae – Face masks • Noninvasive airway devices: – Nasopharyngeal airway – Oropharyngeal airway 3
    • Learning and Skills ObjectivesThe airway hierarchy (cont’d) • Recommended invasive airway devices: – Laryngeal mask airway (LMA) – Esophageal-tracheal (Combitube) tube – Tracheal tube • Primary/secondary confirmation of tracheal tube placement: – Physical exam criteria – End-tidal CO2 detection – Devices to detect esophageal placement • Devices to prevent TT dislodgment 4
    • Primary ABCD SurveyFocus: Basic CPR and Defibrillation • Check responsiveness • Activate emergency response system • Call for defibrillator A = Airway: open the airway B = Breathing: check breathing, provide positive-pressure ventilations C = Circulation: check circulation, give chest compressions D = Defibrillation: assess for and shock VF/pulseless VT 5
    • Secondary ABCD SurveyA = Airway: insert advanced airway device as soon as able (new: 3 types)B = Breathing: confirm placement by PE (primary tube confirmation) PLUSB = Breathing: confirm placement with esophageal detector device or end-tidal CO2 detector or both (secondary tube confirmation)B = Breathing: use a commercial tube holder to prevent dislodgmentB = Breathing: confirm effective oxygenation/ventilation by 02 sat, CO2 levels, pH 6
    • Anatomy of Airway 7
    • Airway ObstructionMost common cause: tongue and/or epiglottis 8
    • Opening the AirwayJaw thrust Head tilt–chin lift 9
    • The Oropharyngeal Airway 10
    • Malposition ofOropharyngeal Airway Too short 11
    • Nasopharyngeal Airway Insertion technique 12
    • Barrier DevicesOral airway: inserts in patient 13
    • Pocket-Mask Devices 1-way valve Port to attach O2 source 14
    • Mouth-to-Mask VentilationAdvantages • Eliminates direct contact • Enables positive-pressure ventilation • Oxygenates well if O2 attached • Easier to perform than bag-mask ventilation • 1-rescuer technique; performed from side • Rescuer slides over for chest • Best for small-handed compressions rescuers • Fingers: head tilt–chin lift 15
    • Mouth-to-Mask VentilationFingers: jaw thrust upward Fingers: head tilt–chin lift 16
    • Bag-Mask VentilationKey—ventilation volume: “enough to produceobvious chest rise” 1-Person: 2-Person: difficult, less effective easier, more effective 17
    • Cricoid Pressure Thyroid Cartilage Cricoid 18
    • Bag-Mask VentilationAdvantages • Provides immediate ventilation and oxygenation • Operator gets sense of compliance and airway resistance • May provide excellent short-term support of ventilation • High oxygen concentrations are possible • Can be used to assist spontaneous respirationsPotential complications • Hypoventilation • Gastric inflation 19
    • Airway Adjunct Devices Nasal cannula Face mask with O2 reservoir,24%-44% O2 concentration 60%-100% O2 concentration 20
    • Types of Portable SuctionCourtesy of Laerdal Medical Corporation, Armonk, NY 21
    • Equipment for IntubationLaryngoscope withseveral bladesTracheal tubesMalleable stylet10-mL syringeMagill forcepsWater-soluble lubricantSuction unit, catheters, and tubing 22
    • Curved Blade Attaches to Laryngoscope Handle 23
    • Curved Blade Attached to Laryngoscope Handle 24
    • Curved Blade Laryngoscope Inserted Against Epiglottis 25
    • Straight-Blade Laryngoscope 26
    • Straight-Blade Laryngoscope Inserted Past Epiglottis 27
    • Cricothyroid Membrane WithHorizontal Cricothyrotomy Incision 28
    • Aligning Axes of Upper Airway Mouth A A B B C CPharynx Trachea Extend-the-head-on-neck (“look up”): aligns axis A relative to B Flex-the-neck-on-shoulders (“look down”): aligns axis B relative to C 29
    • Visualization of Vocal Cords Anatomy Tongue Vallecula Epiglottis Vocal cord Glottic Arytenoid opening cartilage 30
    • Tracheal IntubationAdvantages • Protects airway from aspiration of foreign material • Facilitates ventilation and oxygenation • Facilitates suctioning of trachea and bronchi • Provides route for drug administration • Prevents gastric inflation if used with cuff • Allows faster chest compressions 31
    • Tracheal IntubationIndications • Inability to ventilate the unconscious patient • After insertion of pharyngeal airway • Inability of patient to protect own airway (coma, areflexia, or cardiac arrest) • Need for prolonged mechanical ventilation 32
    • Tracheal IntubationRecommendations • Intubate as soon as possible after ventilation and oxygenation in cardiac arrest • Intubation should be done by most experienced person • Do not take longer than 30 seconds per attempt • Auscultate the thorax and epigastrium after intubation 33
    • Tracheal IntubationComplications • Trauma—teeth, lips, tongue, mucosa, vocal cords, trachea • Esophageal intubation • Vomiting and aspiration • Hypertension and arrhythmias 34
    • Esophageal-Tracheal Combitube A = esophageal obturator; ventilation into trachea through side openings = B E C = tracheal tube; ventilation through open end if proximal end inserted in trachea D = pharyngeal cuff; inflated through catheter = E Distal End F = esophageal cuff; inflated through catheter = G H = teeth marker; blindly insert Combitube until marker is at level of teeth A C H Proximal End B D F G 35
    • Esophageal-Tracheal Combitube Inserted in Esophagus A H D D B FA = esophageal obturator; ventilation into trachea through side openings = BD = pharyngeal cuff (inflated)F = inflated esophageal/tracheal cuffH = teeth markers; insert until marker lines at level of teeth 36
    • Laryngeal Mask Airway (LMA)The LMA is an adjunctive airway that consists of a tubewith a cuffed mask-like projection at distal end. 37
    • LMA Introduced Through Mouth Into Pharynx 38
    • LMA in PositionOnce the LMA is in position, a clear, secure airway is present. 39
    • Anatomic Detail 40
    • Esophageal Detector Device (Bulb-Type) 41
    • Confirmation:Tracheal Tube Placement End-tidal colorimetric CO2 indicators 42
    • Tracheal Tube Holders: Adult and Infant 43
    • Qualitative End-Tidal CO2 DetectorWhat should the operator’s next action be? 44