11 November 2010

Acute Respiratory Infections Pt.3

Wheezing
 
Causes
  • Under age 2 -Bronchiolitis
  • Older children plus those with recurrent attacks of wheeze -bronchial asthma or reactive airways disease
    • transient wheezers
    • persistent wheezers
  • Other respiratory infections
  • Inhaled foreign body
  • Tuberculous node compressing bronchus

Drug management
  • Bronchodilators for asthma or recurrent airways disease but notfor bronchiolitus
  • Use of metered-dose inhalers with spacer device
  • Relatively inexpensive -Salbutamol inhaler $ 1.50 for 200 doses
  • Can be used in outpatient setting and at home
  • Combined inhaler and inhaled steroids (expensive) reserved for cases of recurrent asthma
Disadvantages of Addition
  • Not a major cause of mortality
  • Recognition of audible wheeze is poor with low specificity
  • Incorrect diagnoses increase clinic visits and drug use
  • Drugs and supplies expensive to buy and maintain at first-level facilities
  • Drugs often diverted to adults

Consider Addition
  • In countries that can afford bronchodilators and where morbidity from asthma is a problem
    In areas where rapid-acting bronchodilators are available at first-level facilities
    When health workers are trained to recognize audible wheeze and use bronchodilators
  • If it will reduce unnecessary referral to the hospital
  • If caretakers can be trained in home use/compliance
  • If the health worker can recognize when a child with recurrent wheeze is not responsive in the first-level health facility
  • If health workers can recognize underlying bacterial pneumonia


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