II. Risk Factors: Difficult Intravenous Access
- Children <3 years old (especially less than 1 year old)
- Infants require at least 2 IV attempts in most cases (and an average of 33 minutes for access)
- Weight <5 kg (11 lb)
- Prematurity
- Other conditions
- Obesity
- Edema
- Burn Injury
- Sclerosed veins (Chemotherapy, Sickle Cell Disease, Cystic Fibrosis)
- References
III. Approach: Adjunctive measures
- Calm children and their parents
- Prepare them for Intravenous Access
- Distract the child (videos, child-life specialist)
- Premedication options
- Local Skin Anesthesia
- J-Tip (transdermal Lidocaine device)
- Creates eraser sized wheel of Lidocaine that has been shot through the skin without needle
- Onset of Anesthesia within 3 minutes of use
- May also be used for Lumbar Puncture
- Topical Lidocaine (LMX4 - topical liposomal Lidocaine 4%) occluded 30 min. before
- EMLA cream (Lidocaine 2.5%, Prilocaine 2.5%)
- EMLA creamAnesthesia reaches a depth of 3 mm at 1 hour, and 5 mm at 1.5 to 2 hours
- Not effective in age <3 months for venipuncture (see EMLA cream)
- J-Tip (transdermal Lidocaine device)
- Other devices
- Buzzy Bee Vibrating Device (effective in ages 3-18 years; not effective in infants)
- Wings of device are stored in the freezer (use within 10 minutes of removing from freezer)
- Device and wings are placed on skin 5 cm proximal to venipuncture site (or Immunization site)
- Cold and vibration prevents pain fibers from transmitting painful stimuli (gate theory)
- Apply to skin for 1 minute before procedure
- Buzzy Bee Vibrating Device (effective in ages 3-18 years; not effective in infants)
- Light Procedural Sedation
- Oral sucrose 24% (infants aged birth to 6 months)
- Intranasal Fentanyl
- Intranasal Midazolam
- References
- Claudius and Behar in Herbert (2019) EM:Rap 19(12): 3-5
- Local Skin Anesthesia
- Optimize access sites
- Warm the access sites with blankets and warm packs
-
Ultrasound
- Moderately helpful for pediatric peripheral IV if skilled in Ultrasound guided procedures
- Infrared vein viewer (not supported by literature)
- Helps visualize the veins, but does not assist in vein cannulation
IV. Approach: Ultrasound guided IV sites in difficult access
-
General Ultrasound techniques
- Use high frequency linear transducer (small parts, vascular Ultrasound probe) with adequate gel
- Apply minimal skin pressure to avoid collapsing vessels
- Distal cephalic vein
- Site: Medial aspect of the radial wrist
- Consider using bevel down needle orientation in younger children
- Greater saphenous vein
- Site: Anterior to medial malleolus
- Track the vessel proximally with Ultrasound until diameter adequate for IV cannulation
- Requires steeper angle
- Consider placing 2x2 gauze secured under cathater to prevent kinking off flow
- Upper arm veins (basilic vein, cephalic vein, deep brachial vein)
- Sites
- Pearls
- Vein caliber typically maintained even in severe Dehydration or Sepsis
- More difficult to access than in adults
- Flash may not be seen (consider saline flush under Ultrasound to confirm placement)
- Vein caliber typically maintained even in severe Dehydration or Sepsis
V. Approach: Non-Ultrasound guided IV sites in difficult access
- External Jugular Vein
- Place patient in Trendelenburg position with towel roll under neck to keep it extended
- External Jugular Veins may be more evident with respiratory distress (Auto-PEEP)
- Flash may not be evident
- Scalp veins
- Sites
- Superficial temporal vein (avoid temporal artery)
- Auricular vein
- Apply Rubber band around the scalp
- Above the eyes and ears anteriorly
- Around the Occiput Posteriorly
- Pearls
- Identify straighest vein available (arteries are typically tortuous)
- Place the patient in Trendelenburg position
- Use a smaller gauge needle (e.g. 24 gauge)
- Precautions
- Do not place IV over Anterior Fontanelle
- Sites
VI. Approach: Alternatives to Intravenous Access
-
Intraosseous Access
- Much faster than central access, and indicated when emergent access is needed and failed peripheral access
- Femoral Central Line
- Can non-IV sites be used?
- Intramuscular, subcutaneous, oral or intranasal medication delivery
- Gastric Tube fluid delivery
VII. References
- Lin and Kornblith in Herbert (2014) EM: Rap 14(12): 3-4
- Claudius, Behar, Chang and Santillanes in Herbert (2016) EM:Rap 16(4): 3-4