Respiratory Flashcards
1
Q
Laryngomalacia (2)
A
- Most common cause of noisy breathing in infancy
2. Most common cause of Stridor in neonates (60-70%)
2
Q
Laryngomalacia Pathophysiology (3)
A
- A congenital softening of the tissues of the larynx above the vocal cords. Collapse of the larynx due to lack of strength
- Caused by ‘floppy’ supraglottic structures causing the tissues to fall over the airway and partially block it
- Can be present at birth and may present within the first month of life
3
Q
Laryngomalacia Presentatio (4)
A
- Inspiratory stridor
- Coughing
- Choking
- Regurgitation
- over 50% have GEReflux
- Need to treat the reflux!
- Symptoms are worse when agitated, crying, feeding or lying on back
4
Q
Laryngomalacia Course (6)
A
- Not serious for most – noisy but can eat and grow!
- Some struggle with feeding and growth and require prompt attention (~50%)
- Typical course does not require surgery-
- Worsening at 4-8 months
- Improves at 8-12 months
- Resolves by 12-18 months (outgrow it/resolution within 1st 24 months)
5
Q
Laryngomalacia Treatment (7)
A
- 90% resolve without treatment
- Refer to ENT if distress – bronchoscopy to see floppiness
- Surgery (supraglottoplasty) for those with poor feeding and weight gain
- Tracheostomy is very rare
- Observe most for Gastroesophageal Reflux (GER) & treat!
- Acid can cause swelling above the vocal cords and make it worse
- Nasopharyngolaryngoscopy (NPL) to evaluate – thru nose to larynx
6
Q
PNP’s role with Laryngomalacia (9)
A
- Complete history of symptoms
* “classic symptoms” - inspiratory stridor worsened by feeding,agitation, supine or crying - Birth history
- Family history
- Complete PE
* Include Ht/Wt – growth chart-FTT - Observe feeding if you can
- Discuss GERD and treat (ranitidine neonate:2-4mg/kg/24hr divided Q8-12 hours & > 1year: 5-10 mg/kg/24hr divided every 8-12 hours)
- Reflux precautions
- Follow up for feeding and weight gain
- Refer to ENT
7
Q
Differential Diagnosis for Laryngomalacia (9)
A
- Vocal cord paralysis
- Laryngeal web
- Hemangioma
- Edema secondary to trauma
- Birth trauma or aspiration at birth
- Brachial cleft cyst
- Croup (6 months-3 years of age) (parainfluenza virus)
- Epiglottitis (decreased incidence since Haemophilus Influenze type B vaccine – HIB)
- Foreign body (less common in infancy but can happen)
8
Q
Upper Respiratory Infections (3)
A
- AKA- the common cold
- One of the most common illnesses leading to office visits and school absences
- Mainly Caused by a VIRUS
9
Q
URI Virus Etiology Info (5)
A
- Inflames the membranes in the lining of the nose and throat
- Over 200 different viruses
- Rhinovirus most common cause
- Children will have 6-8 colds a year
* Higher for children in daycare - Adults get cold 2-3 times a year
10
Q
URI Viruses (3)
A
- 50% resulting from infection by rhinovirus
- Parainfluenza viruses, Respiratory Syncytial Virus (RSV), Coronovirus, and Human Metapneumovirus – Common
- Adenovius, Enterovirus, Influenza virus can cause occassionally
11
Q
URI Spread (2)
A
- Direct inhalation of the virus by droplet from sneezing, coughing, nose blowing
- Can spread from touching nasal secretions or contaminated object or surface and touching eyes, nose or mouth- the virus gains entry and produces a new infection!
12
Q
URI Symptoms (9)
A
- Runny nose
- Congestion
- Cough
- Hoarse voice
- Poor feeding
- Fever
- Irritable/cranky
- Symptoms usually start 1-3 days after exposure to the virus
- Symptoms can last up to 14 days but usually 5-7 days
13
Q
URI Infants and Nasal Congestion (4)
A
- Remember infants are obligate nasal breathers up to 3 months of life
- Even moderate nasal congestion can create difficulty breathing
- Nasal congestion → leads to feeding problems –> cannot breathe when suckling à unable to expectorate mucous → often gag, choke and vomit
- Infants small airways can be significantly narrowed by inflammation and mucous causing difficulty breathing even Stridor!
14
Q
URI Course (5)
A
- Can last up to 14 days
- MOST viral URIs last 5-7 days
- Respiratory symptoms peak in severity at days 3 to 6
- Then will improve over time
- Longer if complicated by a bacterial infection and severe respiratory distress in infants
15
Q
URI Cause (5)
A
- VIRAL #1
- Bacterial – can develop with inflammation from viral processes damaging the tissue and making it more susceptible to bacterial invasion
- Leads to complications
- Pneumonia
- Otitis Media