rhinosinusitis%20-%20acute,%20bacterial%20(pediatric)
RHINOSINUSITIS - ACUTE, BACTERIAL (PEDIATRIC)
Rhinosinusitis is the mucosal inflammation of the nose and paranasal sinuses caused by bacteria lasting >10 days for up to 4 weeks, symptoms resolve completely and may either be persistent or severe.
It is often preceded by a viral upper respiratory tract infection.
Signs & symptoms are nonspecific and it is typically difficult to differentiate from viral upper respiratory tract infection.
Streptococcus pneumoniae is the most common cause followed by nontypeable Haemophilus influenzae.

Diagnosis

  • Presumptive diagnosis & identification of bacterial versus viral rhinosinusitis may be made when the child has an acute upper respiratory tract infection (URTI) & w/ any of the following:
    • Persistent illness, eg, symptoms of nasal discharge (of any quality) or daytime cough or both lasting >10 days w/ no improvement
    • Severe onset, eg, concurrent fever (temperature ≥37°C/102.2°F) & purulent nasal discharge or facial pain for at least 3-4 consecutive days at the beginning of illness
    • Worsening course, eg worsening or new onset of nasal discharge, daytime cough, headache or fever that lasted 5-6 days after initial improvement

Assessment

Severity of Acute Bacterial Rhinosinusitis (ABRS)

  • The terms mild & moderate reflect the degree of patient discomfort (symptom complex & time course of disease) & the likelihood of spontaneous resolution of symptoms
  • Evaluation of disease severity is based on total severity visual analogue scale (VAS) score
    • Mild: VAS 0-3
    • Moderate: VAS >3-7
    • Severe: VAS >7-10
  • Differences in disease severity do not necessarily imply antimicrobial resistance

History

  • Document all relevant signs & symptoms including severity & time course

Physical Examination

  • Nose should be examined for deviated septum, nasal polyps & foreign bodies
  • Examination of the ears for concomitant otitis media
  • Perform anterior rhinoscopy to look for erythematous nasal mucosa & to examine nasal turbinates for edema & purulent drainage
    • Change in the color, quantity & quality of the nasal discharge are not specific signs of bacterial infection
  • Fiberoptic endoscopy is done to visualize the middle meatus
    • Culture of purulence in this area may be parallel w/ cultures from sinus aspirates
  • Local tenderness on percussion or direct pressure over the body of the frontal & maxillary sinuses w/ unilateral predominance may be present
  • Periorbital edema may indicate ethmoidal sinusitis
  • Examination of the tympanic membrane, pharynx & neck for lymph nodes may not support the diagnosis of acute bacterial rhinosinusitis (ABRS)

Laboratory Tests

Sinus Aspiration & Culture

  • Considered the gold standard for the diagnosis of acute bacterial rhinosinusitis (ABRS)
    • Bacterial recovery of ≥104 colony-forming units/mL is considered positive
    • Not recommended for routine diagnosis due to its invasiveness & technical skills it requires
  • Indications: Lack of response to conventional therapy, toxic-looking patient or presence of severe illness, suppurative or intracranial complications, & suspected rhinosinusitis in immunocompromised patient

Transillumination

  • May be useful in adolescents for assessing maxillary & frontal sinus disease, however shown to be unreliable in patients <10 years

Imaging

  • Imaging studies [eg plain radiographs or computed tomography (CT) scan] are nonspecific & do not distinguish bacterial from viral rhinosinusitis, thus it is discouraged to used these studies
  • Radiologic studies should not be routinely done as part of initial management of uncomplicated acute bacterial rhinosinusitis (ABRS) & as confirmatory test in patients ≤6 years
    • Some support the use of radiographs in patients >6 years of age w/ persistent symptoms & in all patients w/ severe disease regardless of age
  • CT scan is indicated in the following patients: who have recurrent or persistent rhinosinusitis, w/ signs of ABRS complications, & refractory rhinosinusitis in which surgery is being contemplated
  • Magnetic resonance imaging (MRI) scan is indicated in extra sinus local spread or intracranial complications, although this is uncommon
  • More data are needed to know the usefulness of ultrasound in diagnosing ABRS
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