Pulmonology Flashcards
Define paediatric asthma
Recurrent (3 or more episodes) wheezing and or dyspnoea that respondS to bronchodilator has asthma until proven otherwise
Can only be diagnosed from age 3
Name clinical features asthma (5)
• Expiratory wheeze
• dry cough
• dyspnoea
• allergic facies: Dennie Morgan lines /folds in atopic dermatitis, allergic shiners (infraorbital edema and darkening), allergic nasal crease/salute
• long face syndrome: open mouth, flat and long midface, retract upper lip, narrowing of hard palate causing crowding of maxillary teeth
Diagnosis asthma? (5)
Children under 5
• recurrent wheeze /bronchiolitis > 3 episodes
• positive bronchodilator response
• family and personal history atopy
Children over 5
• same history
• lung function tests: peak flow meter or spirometry
Treatment acute asthma attack? (2)
Emergency!
• beta 2 agonist eg albuterol 2-10 puffs via spacer,/nebulisation, increase by 2 puffs every 2 minutes up to 10 puffs
• oral prednisone 2mg/kg po
Treatment chronic asthma? (5)
Goal = free from symptoms and unrestricted lifestyle, can attend school and participate in sports.
Follow GINA guidelines: (children 6-11)
• step 1 intermittent asthma: No controller, saba eg albuterol as needed (alternative: low dose inhaled corticosteroids taken with saba or daily low dose inhaled corticosteroids)
• step 2: daily low dose ICS (controller) eg beclate and saba (reliever) as needed (alternative controller: daily leukotriene receptor antagonist, or low dose iCs taken when saba is taken)
• step 3: low dose ics-laba or medium dose ics, and saba as needed (alt: low dose ics and ltra)
• step 4: medium dose ics-laba, refer for expert advice, saba reliever (alt: high dose ics-laba,or add on tiotropium, or add on lrta)
• step 5: refer for phenotypic assessment and add on therapy eg anti-ige (alt: add il-5, or add low dose ocs)
Name red flag symptoms for chronic lung disease (6)
• Chronic cough > 3 weeks
• copious mucous secretion (productive cough)
• cough on feed / history choking
• recurrent or persistent noisy breathing (snoring, stridor, wheeze)
• dyspnoea, exercise intolerance
• recurrent and non-resolving lower respiratory tract infections (pneumonia, bronchiolitis)
Name red flag signs for chronic lung disease (6)
• Stunted (typical) or wasted growth
. Hypoxia chronic
• clubbing
• allergic face
• chest wall deformity
• persistent abnormalities on auscultation
How tell if clubbing? (2)
Loss of shamroth window when put fingers together
And Lovibond’s angle (clubbing > 180)
Also: Curth’s angle (distal phalangeal joint); Goyal and Griffith’s index of nail curvature
Define bronchiectasis
Impaired clearing of secretions from affected parts of lung resulting in repeated lower respiratory tract infections, due to permanent destruction of bronchial walls and lung tissue from chronic infection
→ irreversible airway dilatation and distortion
“Vicious cycle” of infection, inflammation, airway damage
How classify bronchiectasis? Name 8 causes.
• Cystic fibrosis related
• non cystic fibrosis related
-focal (do bronchoscopy)
→ foreign body (most common)
→ endobronchial masses and tumours
-generalised diffuse
→ HIV
→ Tb
→ primary ciliary dyskinesia
→ primary immunodeficiency states
→ aspiration (neuromuscular disease, cleft lip and palate, trachea oesophageal fistula, GERD, )
→ mediastinal masses eg lymphoma
Name 3 symptoms bronchiectasis
• Chronic productive cough
• halitosis
• haemoptysis
Name 8 signs bronchiectasis
• Clubbing
• chest deformities
• signs of air trapping: barrel chest, displaced liver, decreased cardiac dullness
• failure to thrive
• widespread coarse crackles
• stunting (higher metabolic demand)
• pulmonary hypertension
• cor pulmonale
If bronchiectasis due to local disease: trachea displaced to side of pathology and bronchial breathing and crackles
Treat bronchiectasis? (7)
• treat underlying cause
• “keep lungs clean”:
• treat acute exacerb with antibiotics (co-amoxiclaV: 2 weeks best)
• daily physio
• immunisations
•Immuno-modulation of air way inflammation with azithromycin in selected patients
• lobectomy of localised bronchiectasis, especially if no response to medical therapy
Aetiology cystic fibrosis?
Autosomal recessive, cftr gene on chromosome 7 which causes defective chloride ion pump found in lungs, intestines, pancreatic ducts, biliary tree, sweat glands, reproductive organs → mucous plugging and recurrent infections, exocrine pancreatic insufficiency
Presentation cystic fibrosis? (6)
• intestines: neonates: meconium ileum or plaque (suspect in any neonate with intestinal obstruction)
• biliary system: cholestatic jaundice - obstructed by thick viscous bile → chronic liver disease
• pancreas: obstruction → impaired excretion pancreatic enzymes → exocrine insufficiency
-steatorrhoea
-vitamin Kade deficiency → peripheral edema
• lungs: mucous plugging and recurrent infections, prolonged and recurrent wheezing, failure to thrive (week 1 ) → bronchiectasis
• reproductive: infertility
• Ent: sinus obstruction, chronic rhinosinusitis, polyposis
Diagnosis cystic fibrosis (3)
• two positive Sweat chloride test > 60 mmol/ L
• genetic test
Also: stool chemotrypsin and stool faecal elastase for git involvement
Treatment cystic fibrosis? (3)
• Lung: nebulisations to liquefy secretions, intensive physio, aggressive treatment of acute infections with antibiotics (pseudomonas aeruginosa prevent and eradicate: most rapidly lose lung function) , lung transplant if available
• pancreatic enzyme replacement: Creon
• multidisciplinary
Define chronic cough
> 21 days
Name 9 common acute causes of upper airway obstruction
Infectious
• laryngo - tracheo- bronchitis
• epiglottitis
• bacterial tracheitis
• retropharyngeal abscess
• paratracheal gland enlargement
Mechanical.
• foreign body
Allergic
• AngiOneurotic oedema
Trauma,,
• intubation injury
• thermal injury
Name 5 common chronic causes of upper airway obstruction
Congenital
• laryngomalacia
• laryngeal cysts
Infections
• laryngeal papillomatosis
• hypertrophy of tonsils and adenoids
Trauma
• subglottic stenosis
Name 6 causes of intrathoracic large airway obstruction
• Foreign body inhalation
• Tb gland obstruction
• congenital abnormalities
• anomalous artery
• bronchogenic cyst
• tracheomalacia
Name 7 causes of intrathoracic small airway obstruction
• Acute viral bronchiolitis
• asthma
• pneumonia with eosinophilia
• aspiration pneumonia
• cardiac failure
• cystic fibrosis
• bronchiectasis
Define and describe presentation lymphocytic interstitial pneumonitis (5)
• Chronic lymphocytic infiltrative disease from dysregulated immune response with hiv!/ebv interaction. Most common cause pulmonary disease in HIV infected children after PJP.
• common age 1-5!
• chronic cough, sob, recurrent pneumonia, FTT, clubbing!, generalised lymphadenopathy, parotid enlargement!, hepatosplenomegaly, barrel chest with diffuse crackles.
• CXR,: diffuse interstitial infiltrates with coarse nodular appearance (often confused with military tb)
• clinical diagnosis
• complications = bronchiectasis → corpulmonale
Treatment lymphocytic interstitial pneumonitis? (2)
• Arvs
• prednisone 2mg/kg for 30 days if very symptomatic.
Usually good outcome.
First line treatment Tb paeds for <8 years complicated and > 8 years?
RIPES
• rifampicin
• isoniazid (with pyridoxine)
• pyrazinamide
• ethambutol
• streptomycin
Name 5 constitutional symptoms Tb
• Chronic cough
• weight loss
• poor appetite
• haemoptysis
• night sweats
Define, describe symptoms and treatment bronchiolitis obliterans (4)
• HIV positive adolescents: obliterative bronchiolitis with extension of granulation tissue into alveoli, due to repeated viral infections/hiv itself (immune response)
• hyperinflation, expiratory weeze, diffuse crackles
• lung functions show obstructive picture
• treatment ARV, not great prognosis
Define, describe clinical presentation, diagnosis and treatment primary ciliary dyskinesia (4)
• Autosomal recessive, ultrastructural defects of cilia, impaired mucous clearance from lungs, paranasal sinuses and middle ears.
• blocked nose from birth, otitis media, situs inversus (kartagener syndrome), sinusitis, chronic lung disease with progression to bronchiectasis in second decade life,
• diagnose with radio isotope clearance test or measure absence nitric oxide in exhaled air and confirmed by determine electron microscopic appearance of cilia
• treatment similar to non-cf bronchiectasis
Describe respiratory system examination (13)
• Wash hands, Introduction and orientation, Consent , position and expose patient, ensure patient comfort
• General exam: acute/chronic, anxiety/ /restlessness, drooling, equipment, jaccold
• vitals: pulse rate and rhythm, temperature, bp, sats
• interpret anthropometry
• sign respiratory distress and severity: rr, breathing pattern, flaring, recession. Presence and character cough, wheeze, stridor, stertor, voice
• features allergic facies (long face, open mouth, shiners, Dennie Morgan lines, salute,nasal crease and discharge
• inspect chest: shape (bulging, barrel, Harrison sulCus, kyphosis, scoliosis) , movement (symmetrical, Hoover sign, paradoxes)
• palpate: tracheal deviation, cardiac apex, vocal fremitus
• percussion
• auscultate each lobe
• ent exam
• summary: anatomical section affected, pathology, cause of disease, degree of function compromised, complications
• differential diagnosis, most likely diagnosis, management
Name 2 causes cough with wheeze
• Asthma
• viral
Name causes productive cough
Lower respiratory tract infection
Name causes barking cough
• croup (usually viral, parainfluenza)
• laryngomalacia
Name 2 causes dry cough
• Allergies
• Tb
Name causes hoarse voice
Laryngitis
Name causes hot potato voice
Peritonsillar abscess
Thick, muffled voice