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Continuity Clinic Notebook:

Chapter II. The Evaluation of the Sick Child

Chapter 2 Index

A. Evaluation by system:

1. General

2. HEENT
--Otitis Media:
Classification, Rx and Complications

--Pediatric ENT:
1. When to Refer for Tubes
2. Laryngeal Abnormalities

--The Treatment of Otorrhea
--Eye Problems of Children
--Allergic Rhinitis
--Sinusitis vs. Purulent Rhinitis vs. URI
--“Treatment” of the Common Cold
--Frequently Used OTC Medications for the Common Cold
--Facial Nerve Palsy in Pediatrics
--Strep Throat
--Other Streptococcal Infections in Children

 

Croup: Differential Diagnosis and Treatment

Introduction: Croup is the most common cause of upper airway obstruction in children between 6 months and 6 years of age. Almost all children with croup can be treated as outpatients. There may be an association with asthma and other lower respiratory tract infections. This is based on the presence of hyperreactive airways, not true atopy.

Possible Medications To Be Used in Treatment of Viral Croup:

  1. **IM Dexamethasone: the standard: 0.6 mg/kg dose
  2. PO Steroids alone: no question that helps modify severe croup, which requires hospitalization.  Studies of inpatients (Acta Paediatr. 1988;77:99-104).  Dose of 0.15 mg/kg is just as effective as 0.6 mg/kg of po dexamethasone. (Pediatric Pulmonology 95;20:362-8.).  IM route still preferred.
  3. Nebulized Dexamethasone: not effective. (Archives Ped & Ad Med. 1996;150:349-355.)
  4. Nebulized Budesonide:
    • Budesonide as good as adrenaline: no difference (Pediatrics 1996;97:722-5);
    • combined with Dexamethasone po (0.6 mg/kg): 84% did well, compared to 56% who received Dexamethasone po alone. (Pediatrics 1996;97:463-466)
    • more recently: (JAMA 98;279:1629-32): po dexamethasone and neb bud: no difference
    • compared with IM Dexamethasone and placebo: both better than placebo; IM Dexamethasone is better than budesonide: (NEJM 98;339:498-503)
  5. Racemic Epinephrine: Dose (0.5 ml of 2.25% epi diluted in 2.5 ml of saline).  Many worry about giving this as outpatient, since the rebound from it can be so severe.  Three recent articles: conclude: OK to give if watch for 3-4 hours after treatment.  If need two treatments: admit. Question that must be answered: is it reasonable to keep children hanging around an ER for 3-4 hours after being treated?

Differential Diagnosis of Croup:

  1. Viral Croup vs spasmodic croup (younger age – 1-3 years of age, allergic, psychological factors, GER associated. Spasmodic often occurs in middle of the night)
  2. Epiglottitis (H. Flu type B): can still occur; signs: cyanosis, drooling, fever: age 2-7 yrs
  3. Bacterial Tracheitis (staph aureus): can be just as lethal as epiglottitis; toxicity of child, WBC and diff, nature of illness all must be taken into account.
  4. Organic problems such as subglottic stenosis after prolonged ET tube placement, laryngeal webs, etc.  These should be considered in recurrent croup is recurrent or stridor at rest.
  5. Foreign bodies
  6. Anaphylaxis with angioedema of the subglottic area.

Outpatient Treatment of Mild Croup: Still Controversial:

General treatment: hydration, humidification (cool mist, not hot steam), fever control.  No help from decongestants, antihistamines and antibiotics, but these are used commonly.  

Role of steroids is not clear in mild croup: po prednisone, po dexamethasone, nebulized budesonide, IM steroids; also unclear about whether should be used in the child who is now well, but had croup the night before.  A lot of IM dexamethasone is given for children with croup in physicians’ offices.

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Department of Pediatrics  |  Medical College of Georgia
Please email comments, suggestions or questions to:
John T.  Benjamin M.D., 
jbenj@mcg.edu

February 27, 2004