Management of Croup in Toddlers

Assessment and Diagnosis

Croup presents with a sudden onset of respiratory distress with coughing, gagging, stridor, or wheezing, typically without fever or other respiratory symptoms such as antecedent cough or congestion, according to the American Academy of Pediatrics 1
Radiographic studies are generally unnecessary and should be avoided unless there is concern for an alternative diagnosis, as recommended by the American Academy of Pediatrics 2

Treatment Algorithm

The American Academy of Pediatrics recommends oral corticosteroids for all cases of croup, regardless of severity, with nebulized epinephrine reserved for moderate to severe cases, and hospital admission only after three doses of racemic epinephrine are needed 3, 2
For moderate to severe cases with stridor at rest or respiratory distress, nebulized epinephrine is recommended, with a dosage of 0.5 ml/kg of 1:1000 solution nebulized, as suggested by the British Thoracic Society 4, 5
The effect of nebulized epinephrine is short-lived, lasting approximately 1-2 hours, according to the British Thoracic Society 4, 5
Oxygen therapy should be administered to maintain oxygen saturation ≥94%, using simple oxygen masks or tight-fitting non-rebreathing masks as needed, as recommended by the American Heart Association 1

Hospitalization Criteria

Hospital admission should be considered when three or more doses of racemic epinephrine are required, as recommended by the American Academy of Pediatrics 3, 2
Recent guidelines have shown that limiting hospital admission until 3 doses of racemic epinephrine are needed can reduce hospitalization rates by 37% without increasing revisits or readmissions, according to the American Academy of Pediatrics 3, 2

Important Considerations

Bacterial tracheitis is a potential differential diagnosis, as noted by the British Thoracic Society 4
Foreign body aspiration is also a potential differential diagnosis, as noted by the American Academy of Pediatrics 6
Blind finger sweeps should not be performed in cases of suspected foreign body aspiration, as this may push objects further into the pharynx, according to the American Heart Association and the American Academy of Pediatrics 1, 6
Lateral neck radiographs should not be relied upon for diagnosis, as clinical assessment is more important and radiographs are often unnecessary, as recommended by the American Academy of Pediatrics 2
Nebulized epinephrine should not be used in children who are shortly to be discharged or on an outpatient basis due to risk of rebound symptoms, as warned by the British Thoracic Society 4, 5

Emergency Department Treatment for Croup

Observation and Disposition

The American Academy of Pediatrics recommends monitoring the patient for at least 2 hours after the last dose of nebulized epinephrine to assess for rebound symptoms 7

Cold Air for Croup: Effectiveness in Alleviating Symptoms

Evidence on Cold Air for Croup

Current evidence does not show any benefits from the use of heated or humidified air delivered for the treatment of respiratory symptoms 8

Management of Croup in Children

Diagnosis and Hospitalization Criteria

Oxygen saturation of 93% indicates hypoxemia, which is an indicator for hospital admission in infants 9
Consider hospital admission based on oxygen saturation <92%, need for frequent racemic epinephrine doses, age <18 months, respiratory rate >70 breaths/min, or difficulty in breathing 9

Initial Management and Monitoring

Administer oxygen via nasal cannulae, head box, or face mask to maintain oxygen saturation above 94% 9
Agitation may be an indication that the child is hypoxic and requires oxygen 9
Chest physiotherapy is not beneficial and should not be performed 9
Antipyretics can be used to keep the child comfortable and help with coughing 9
Minimal handling may reduce metabolic and oxygen requirements in ill children 9
Monitor oxygen saturation at least every 4 hours for patients on oxygen therapy 9

Follow-up and Treatment

If discharged home, the child should be reviewed by a general practitioner if deteriorating or not improving after 48 hours 9
Provide families with information on managing fever, preventing dehydration, and identifying signs of deterioration 9
Avoid empirical treatment approaches for conditions like asthma unless other features consistent with these conditions are present 10

Management of Croup in Children

Initial Assessment and Treatment

The American Academy of Pediatrics recommends that a child with suspected croup should be evaluated for inability of family to provide appropriate observation 11

Observation and Disposition Criteria

The British Thoracic Society suggests that discharge criteria include reliable family able to monitor and return if worsening 11

Treatment of Moderate Croup in Children

Positioning and Comfort

For children under 2 years, the American Academy of Pediatrics recommends using a neutral head position with a roll under the shoulders to optimize airway patency, as suggested by the Anaesthesia guideline society 12, 13

Management of Croup in Children

Initial Assessment and Diagnosis

The American Thoracic Society suggests that key clinical features to assess immediately in a child with suspected croup include severity indicators such as ability to speak/cry normally, respiratory rate, heart rate, presence of stridor at rest, use of accessory muscles, and oxygen saturation, as well as life-threatening signs like silent chest, cyanosis, and fatigue/exhaustion 14
The assessment should also consider differential diagnoses to exclude, such as foreign body aspiration, bacterial tracheitis, and pertussis, which can present with distinct clinical features 14

Immediate Treatment Algorithm

The American Academy of Pediatrics recommends administering oral corticosteroids immediately, with dexamethasone 0.15-0.60 mg/kg as a single oral dose (maximum 10 mg) being the preferred option, or prednisolone 1-2 mg/kg (maximum 40 mg) if dexamethasone is unavailable 14

Special Considerations for Recurrent Episodes

The American Academy of Allergy, Asthma, and Immunology suggests that recurrent episodes of croup warrant consideration of asthma as a differential diagnosis, especially if cough worsens at night, episodes are triggered by exercise or irritants, or there is a family history of asthma or atopy 15
The presence of atopy, as indicated by atopic dermatitis or family history of allergies, and gastroesophageal reflux, as suggested by vomiting or feeding difficulties, should be considered in children with recurrent croup, with potential benefits from prophylactic inhaled corticosteroids 16, 17

Croup Management Guidelines

Initial Assessment and Treatment

The presence of life-threatening signs such as silent chest, cyanosis, fatigue/exhaustion, or poor respiratory effort indicates severe disease and requires immediate attention 18
The effect of nebulized epinephrine is short-lived, typically lasting 1-2 hours, making close monitoring essential in patients with moderate to severe croup 18
The American Academy of Pediatrics supports the use of nebulized epinephrine in moderate to severe croup cases, with the understanding that its effects are temporary 18

Critical Pitfalls to Avoid

Never discharge a patient within 2 hours of nebulized epinephrine administration due to the risk of rebound symptoms 18
Never use nebulized epinephrine in outpatient settings where immediate return is not feasible, as this can lead to untreated rebound symptoms 18

Diagnosis and Management of Croup in Children

Etiology and Diagnosis

The American Academy of Pediatrics notes that croup is most commonly caused by parainfluenza viruses (types 1-3), but identifying the specific pathogen does not alter treatment 19

Diagnostic Considerations

The American College of Emergency Physicians recommends considering alternative diagnoses such as bacterial tracheitis, epiglottitis, foreign body aspiration, and retropharyngeal or peritonsillar abscess in children presenting with symptoms of croup, as these conditions can have distinct clinical features and require different management 19

Croup Diagnosis and Management

Patient Characteristics

The median age of presentation for croup is 23 months, with 63% being male patients 20

Diagnostic Considerations

The American Academy of Pediatrics recommends considering alternative diagnoses, such as bacterial tracheitis, foreign body aspiration, epiglottitis, and retropharyngeal or peritonsillar abscess, in patients who fail to respond to standard croup treatment 20

Treatment of Inspiratory Stridor and Barking Cough in Children Under 2 Years

Immediate Treatment Algorithm

For moderate-to-severe cases of inspiratory stridor and barking cough in children under 2 years, the American Academy of Pediatrics recommends adding nebulized epinephrine to oral dexamethasone, providing rapid but temporary relief lasting only 1-2 hours, with the child requiring observation for at least 2 hours after the last epinephrine dose 21

Diagnostic Evaluation

The European Respiratory Society suggests that flexible bronchoscopy should be performed in cases of severe or persistent symptoms not responding to standard treatment, associated hoarseness, oxygen desaturation or apnea, or atypical presentation raising concern for anatomic abnormality, with up to 68% of infants with stridor having concomitant lower airway abnormalities requiring complete airway evaluation 22, 23

Observation Period After Racemic Epinephrine for Croup

Standard Observation Protocol

The American Academy of Pediatrics recommends up to 2 hours of ED observation time after each racemic epinephrine dose, which contributed to a 37% reduction in hospital admissions without increasing revisits 24, 25, 26

Evidence for Extended Observation

Extending observation to 3-4 hours may further reduce treatment failures, with a 2018 study demonstrating lower treatment failure rates (7.1%) compared to those observed for 2.1-3 hours (16.7%), with an odds ratio of 2.44 (P < 0.01) is not included as it has an [ignore ref], however, the 2022 Pediatrics guideline implementation is 24, 25, 26

Multiple Dose Considerations

If a second dose of racemic epinephrine is required, restart the 2-hour observation clock after each dose 24, 26
Consider hospital admission after 3 total doses of racemic epinephrine 24, 25, 26

Special Circumstances

Consider admission rather than extended observation if three or more doses of racemic epinephrine are needed 24, 25, 26
Age < 18 months with severe symptoms should be considered for admission 26

Management of Croup in Children

Hospitalization Criteria

The American Academy of Pediatrics recommends admitting children with croup if they require ≥3 doses of nebulized epinephrine, with a strength of evidence based on a 37% reduction in unnecessary admissions without increasing revisits 27, 28
Children under 18 months, including those 12-16 months old, are considered a high-risk group for admission due to their age alone 27, 28

Croup Management: Medication Avoidance and Airway Considerations in Kabuki Syndrome

Medications to Avoid

Do not give over‑the‑counter cough or cold medications to children with croup, because they provide no therapeutic benefit and may cause harm. 29
Do not give antihistamines or decongestants for croup, as they are ineffective for the disease and carry potential adverse effects. 29
Avoid honey in acute croup‑like presentations; honey is only helpful for post‑viral cough and does not address the inflammatory airway obstruction of croup. 29

Airway Abnormalities in Kabuki Syndrome

Children with Kabuki syndrome may have anatomical airway abnormalities such as laryngomalacia or tracheomalacia, which can complicate croup and impede secretion clearance, making close monitoring essential. 30
In children with Kabuki syndrome who experience recurrent croup‑like episodes, evaluation for underlying airway malacia or asthma should be considered after the acute episode resolves, because airway lesions are often misdiagnosed as asthma and can increase the frequency and severity of respiratory illnesses. 30

Key Clinical Features and Differential Considerations of Pediatric Croup

Clinical Presentation

Barking (“seal‑like”) cough is the hallmark symptom of viral croup in children. This characteristic cough, together with other typical signs, allows clinicians to make a bedside diagnosis without imaging. 31

Differential Diagnosis

A barking cough does not rule out other serious airway conditions; it may also be present in tracheomalacia or habit/tic cough. Therefore, clinicians should still consider alternative diagnoses when evaluating a child with a barking cough, especially if the clinical picture is atypical. [31][32]

Respiratory Assessment and Oxygen Therapy in Pediatric Croup

Clinical Signs of Distress

In children with croup (approximately 6 months to 3 years old), clinicians should evaluate for stridor, use of accessory muscles, tracheal tug, chest wall recession, and agitation, as agitation may signal hypoxemia rather than anxiety. 33

Oxygen Administration Guidelines

Supplemental oxygen should be applied to the face of children with croup—even when stridor is present—to maintain peripheral oxygen saturation at ≥ 94%, because hypoxemia can develop rapidly. 33

Evidence‑Based Supportive Care and Discharge Guidelines for Pediatric Croup

Supportive Care

Provide supplemental oxygen using nasal cannulae, a head box, or a face mask to keep SpO₂ ≥ 94 % in children with croup. 34
Recognize that agitation may be a sign of hypoxemia rather than anxiety, and treat with oxygen therapy when present. 34
Monitor oxygen saturation at least every 4 hours while the child is receiving supplemental oxygen. 34
Minimize handling of severely ill children to lower metabolic demand and oxygen consumption. 34
If intravenous fluids are required, administer them at approximately 80 % of basal maintenance rates and regularly check serum electrolytes. 34
Avoid nasogastric tubes in severely ill children because they can compromise the airway. 34
Chest physiotherapy offers no clinical benefit and may cause harm; it should not be used in croup management. 34

Hospitalization Criteria

Admit a child when the family is unable to provide appropriate observation or supervision at home. 34

Discharge Criteria

Children may be discharged when all of the following are met:
(The entire set of criteria is supported by the same evidence source.) 34

Follow‑Up Instructions

Instruct families to return immediately to the emergency department if the child’s respiratory distress worsens, stridor increases, or the child cannot maintain adequate hydration. 34
Advise a follow‑up visit with the primary‑care provider if symptoms have not improved within 48 hours. 34
Recommend antipyretics for fever control to improve comfort. 34
Emphasize the importance of maintaining adequate fluid intake to prevent dehydration. 34

Evaluation and Management of Persistent or Atypical Croup in Infants

Diagnostic Considerations for Severe or Atypical Presentations

In infants presenting with severe, persistent, or atypical stridor, flexible bronchoscopy is recommended because approximately 68 % of such infants have associated lower‑airway abnormalities. This recommendation is based on data published in the European Respiratory Journal (European Respiratory Society) and reflects moderate‑quality observational evidence. 35

Follow‑Up and Chronic Cough Assessment

When a barking cough lasts longer than 4 weeks, a systematic evaluation for chronic cough should be undertaken. The work‑up includes a chest radiograph and assessment for underlying airway abnormalities, as advised in the Chest journal (American College of Chest Physicians) and supported by expert consensus. 36