2: Pain Assessment and Management

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Part 2 Pain Assessment and Management

Children’s ability to describe pain changes as they grow older and as they cognitively and linguistically mature. Three types of measures—behavioral, physiologic, and self-report—have been developed to measure children’s pain, and their applicability depends on the child’s cognitive and linguistic ability.

DEVELOPMENTAL CHARACTERISTICS OF CHILDREN’S RESPONSES TO PAIN

NONPHARMACOLOGIC STRATEGIES FOR PAIN MANAGEMENT

General Strategies

TABLE 2-1 Behavioral Pain Assessment Scales for Infants and Young Children

AGES OF USE INSTRUMENT
4 months to 18 years Objective Pain Score (OPS) (Hannallah and others, 1987)
1 to 5 years Children’s Hospital of Eastern Ontario Pain Scale (CHEOPS) (McGrath and others, 1985)
Newborn to 16 years Nurses Assessment of Pain Inventory (NAPI) (Stevens, 1990)
3 to 36 months Behavioral Pain Score (BPS) (Robieux and others, 1991)
4 to 6 months Modified Behavioral Pain Scale (MBPS) (Taddio and others, 1995)
<36 months and children with cerebral palsy Riley Infant Pain Scale (RIPS) (Schade and others, 1996)
2 months to 7 years FLACC Postoperative Pain Tool (Merkel and others, 1997)
1 to 7 months Postoperative Pain Score (POPS) (Attia and others, 1987)
Average gestational age 33.5 weeks Neonatal Infant Pain Scale (NIPS) (Lawrence and others, 1993)
27 weeks gestational age to full term Pain Assessment Tool (PAT) (Hodgkinson and others, 1994)
1 to 36 months Pain Rating Scale (PRS) (Joyce and others, 1994)
32 to 60 weeks gestational age CRIES (Krechel, Bildner, 1995)
28 to 40 weeks gestational age Premature Infant Pain Profile (PIPP) (Stevens and others, 1996)
0 to 28 days Scale for Use in Newborns (SUN) (Blauer, Gerstmann, 1998)
Birth (23 weeks gestational age) and full-term newborns up to 100 days Neonatal Pain, Agitation, and Sedation Scale (NPASS) (Puchalski, Hummel, 2002)

TABLE 2-3 Pain Rating Scales for Children

PAIN SCALE, DESCRIPTION RECOMMENDED AGE, COMMENTS

Children as young as 4 years. Determine whether child has cognitive ability to use numbers by identifying larger of any 2 numbers. Children 4 to 17 years Color Tool (Eland and Banner, 1999) Uses markers for child to construct own scale that is used with body outline Children as young as 4 years, provided they know their colors, are not color blind, and are able to construct the scale if in pain

1. Use nonpharmacologic interventions to supplement, not replace, pharmacologic interventions, and use for mild pain and pain that is reasonably well controlled with analgesics.

2. Form a trusting relationship with child and family. Express concern regarding their reports of pain, and intervene appropriately.

3. Use general guidelines to prepare child for procedure.

4. Prepare child before potentially painful procedures, but avoid “planting” the idea of pain. For example, instead of saying, “This is going to (or may) hurt,” say, “Sometimes this feels like pushing, sticking, or pinching, and sometimes it doesn’t bother people. Tell me what it feels like to you.”

5. Use “nonpain” descriptors when possible (e.g., “It feels like heat” rather than “It’s a burning pain”). This allows for variation in sensory perception, avoids suggesting pain, and gives the child control in describing reactions.

6. Avoid evaluative statements or descriptions (e.g., “This is a terrible procedure” or “It really will hurt a lot”).

7. Stay with child during a painful procedure.

8. Allow parents to stay with child if child and parent desire; encourage parent to talk softly to child and to remain near child’s head.

9. Involve parents in learning specific nonpharmacologic strategies and in assisting child with their use.

10. Educate child about the pain, especially when explanation may lessen anxiety (e.g., that pain may occur after surgery and does not indicate something is wrong); reassure the child that he or she is not responsible for the pain.

11. For long-term pain control, give child a doll, which represents “the patient,” and allow child to do everything to the doll that is done to the child; pain control can be emphasized through the doll by stating, “Dolly feels better after the medicine.”

12. Teach procedures to child and family for later use.

Specific Strategies

1. Distraction

2. Relaxation

3. Guided Imagery

4. Positive Self-Talk

5. Thought Stopping

6. Behavioral Contracting

ROUTES AND METHODS OF ANALGESIC DRUG ADMINISTRATION

Topical or Transdermal

1. EMLA (eutectic mixture of local anesthetics [lidocaine and prilocaine]) cream and anesthetic disk or LMX4 (4% lidocaine cream)

2. LAT (lidocaine-adrenaline-tetracaine) or tetracainephenylephrine (tetraphen)

3. Numby Stuff

4. Transdermal fentanyl (Duragesic)

5. Vapocoolant

Data primarily from American Pain Society: Principles of analgesic use in the treatment of acute pain and chronic cancer pain, ed 4, Skokie, Ill, 1999, The Society; and McCaffery M, Pasero C: Pain: a clinical manual, ed 2, St Louis, 1999, Mosby.

SIDE EFFECTS OF OPIOIDS

Available in suspension, 500 mg/5 ml Prescription Ibuprofent (Children’s Motrin, Children’s Advil) Children <6 months: 5-10 mg/kg/dose every 6-8 hours, not to exceed 40 mg/kg/day Naproxen (Naprosyn) Children >2 years: 10 mg/kg/day divided into 2 doses Tolmetin (Tolectin) Children >2 yr: 20 g/kg/day divided into 3-4 doses Available in 200-mg, 400-mg, and 600-mg tablets Prescription

NOTE: Newer formulations of NSAIDs selectively inhibit one of the enzymes of cyclooxygenase (COX-2, which is responsible for pain transmission) but do not inhibit the other (COX-1). Inhibition of COX-1 decreases prostaglandin production, which is necessary for normal organ function. For example, prostaglandins help maintain gastric mucosal blood flow and barrier protection, regulate blood flow to the liver and kidneys, and facilitate platelet aggregation and clot formation. Theoretically, the COX-2 NSAIDs provide similar analgesic and antiinflammatory benefits with fewer gastric and platelet side effects than the nonselective agents. COX-2 NSAIDs are approved for use in patients older than 18 years of age.

* All NSAIDs in this table (except acetaminophen) have significant antiinflammatory, antipyretic, and analgesic actions. Acetaminophen has a weak antiinflammatory action, and its classification as an NSAID is controversial. Patients respond differently to various NSAIDs; therefore changing from one drug to another may be necessary for maximum benefit.
Acetylsalicylic acid (aspirin) is also an NSAID but is not recommended for children because of its possible association with Reye’s syndrome. The NSAIDs in this table have no known association with Reye’s syndrome. However, caution should be exercised in prescribing any salicylate-containing drug (e.g., Trilisate) for children with known or suspected viral infection.
Side effects of ibuprofen, naproxen, and tolmetin include nausea, vomiting, diarrhea, constipation, gastric ulceration, bleeding nephritis, and fluid retention. Acetaminophen and choline magnesium trisalicylate are well tolerated in the gastrointestinal tract and do not interfere with platelet function. NSAIDs (except acetaminophen) should not be given to patients with allergic reactions to salicylates. All NSAIDs should be used cautiously in patients with renal impairment.

Data from Olin BR and others: Drug facts and comparisons, St Louis, 2002, Facts and Comparisons.

TABLE 2-7 Management of Opioid Side Effects

SIDE EFFECT ADJUVANT DRUGS NONPHARMACOLOGIC TECHNIQUES
Constipation
Sedation Caffeinated drinks (e.g., Mountain Dew, cola drinks)
Nausea, vomiting
Pruritus
Respiratoy depression: mild to moderate Arouse gently, give oxygen, encourage to deep breathe
Respirator depression: severe Oxygen, bag and mask if indicated
Dysphoria, confusion, hallucinations Rule out other physiologic causes
Urinary retention

hs. At bedtime; IV, intravenous; PO, by mouth; PR, by rectum; prn, as needed; q, every; tid, three times a day