neonatal air leak syndromes
TRANSCRIPT
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Neonatal Air Leak SyndromesNeonatal Air Leak Syndromes
D R F A E Z A S O O B A D A RC O N S U L T A N T P A E D I A T R I C I A N A N D
N E O N A T O L O G I S TN E O N A T O L O G I S TA P O L L O - B R A M W E L L H O S P I T A L
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Air Leaks
PneumothoraxPneumomediastinumPneumopericardiumpPneumoperitoneumSubcutaneous emphysemap yPulmonary Interstitial Emphysema (PIE)Air embolism
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P/thorax
PIEAir embolism
Alveolarrupture
P/mediastinumSCE
P/pericardiumP/pericardiumP/peritoneum
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Aetiology
Over-vigorous resuscitationIntubation/ IPPV/ NCPAP/ /‘Fighting’ ventilatorHigh PIP; Long I.Tg ; gMAS; RDS; Pneumonia; Pulmonary hypoplasia
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Neonatal Pneumothorax
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Incidence
1-1.5% of all newborns5Affects 5-14% of babies admitted to NICUsMales > FemalesTerms = Pre-termsSpontaneous pneumothorax : 10/15,000p p / 5,Bilateral in 10-21%Mortality 20%y
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Clinical Presentation - 1
Signs of respiratory distress: grunting, ↑RR, recession, cyanosisApnoea, bradycardia, ↓BPDisplaced apex beatChange in breath sounds↑Ventilatory requirements
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Clinical Presentation - 2
Sudden collapse with severe hypotension, p yp ,bradycardia, apnoea, hypoxia, respiratory acidosis
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Investigations
CXR – AP, Lateral decubitus
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Investigations
CXR – AP, Lateral decubitusTransillumination
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Investigations
CXR – AP, Lateral decubitus,TransilluminationDirect needle aspiration – diagnostic & therapeuticp g p
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Treatment - 1
Conservative therapy +/- 100% oxygenIf no underlying lung diseasey g gNo complicating therapyNo distressNo continuous air-leaks
Resolve in 24-48 hrs4 4
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Treatment – 2Needle aspiration
Equipment21-23G butterfly needle3 yCleaning solutionGallipot/ sterile water orp /Syringe & 3-way tap
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Treatment – 2Needle Aspiration
ProcedureClean skinInsert needle 2nd/3rd ICS MCLEnd of tubing under water & watch for bubbles orgApply continuous suction to syringe until rapid flow of air
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Treatment – 3Thoracocentesis - Equipment
Chest drain 10 or 12FG mounted on trocharSterile gown/gloves & cleaning solutionLA, syringes & needlesSterile dressing pack – fine mosquito forceps, scalpel/blade large clampscalpel/blade, large clampUnderwater seal drain3-0/4-0 silk suture & transparent adhesive dressing3 0/4 0 silk suture & transparent adhesive dressing
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Treatment – 3Thoracocentesis - procedure
Clean area & inject LAMake nick in skin along 4th/5th ICS MAL parallel to ibrib
Use fine mosquito forceps to make track for chest drain – just above rib belowdrain just above rib belowInsert chest drain through track about 2-3cm, having previously withdrawn trochar from tip of chest drain
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Treatment – 4Thoracocentesis - procedureThoracocentesis procedure
Place clamp on chest drain proximal to tip of trochar & remove trochar completelyConnect chest drain to underwater seal drain with 10-20 cm H2O suction pressureR l d t h f i b bbli tRemove clamp and watch for air bubbling outSuture chest drain in placeC ith t t dh i d iCover with transparent adhesive dressingCXR
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Removal of chest drain
Lung disease has improvedDrained no air for 24-48hrsPneumothorax resolved for 24-48 hrsNo longer requiring PIP >25Stop suction, clamp drain & remove on successive days CXRsdays – CXRsRemove during expiration if spontaneous breathing; inspiration if vent’dp
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Complications
Profound ventilatory & circulatory compromise & deathIVHSIADH
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Pneumomediastinum
D I A G N O S I S :D I S T A N T H E A R T S O U N D SS S O U S+ V E T R A N S I L L U M I N A T I O NC X R A P – S A I L S I G N
L A T E R A LT R E A T M E N T C O N S E R V A T I V ET R E A T M E N T - C O N S E R V A T I V E
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Pneumopericardiump
C A R D I A C T A M P O N A D EC X R ; T R A N S I L L U M I N A T I O NR X : P E R I C A R D I A L T A P P I N GH I G H M O R T A L I T Y
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Audit on Neonatal Air LeaksAudit on Neonatal Air Leaks
S S R N H N I C U3 1 . 0 7 . 2 0 0 1 - 3 1 . 0 7 . 2 0 0 7
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Incidence 56/1280 (4.3%)
Gender 39 boys, 17 girls
Place of birth SSRNH 22; JH 20; FH 7; Other 7
Mode of delivery Em CS 15; El CS 16; NVD 24; Forceps 1
Outcome 39 alive; 17 dead (Mortality 30%)Only 3 deaths directly attributable to airleak.
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Type & site of air-leak
3015
2 2
Rt p/thorax30
8
p/Lt p/thoraxBL p/thoraxP/mediastinum/P/pericardium
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24
Birth Weight
25 24
22
20
15
Numbers
10 8
52
0<1 kg 1- <1.5 kg 1.5- <2.5 kg >=2.5 kg
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Gestation & Mortality
30
20
25
30
20
28
10
15
20
8 44
9 TotalDied
Died0
5
Total<32 wks32-<37 wks
>=37 wks
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Respiratory support prior to event
207
81 2
CMV/SIMVNone
18
NoneNCPAPHFOVH d til t dHand ventilatedUnspecified
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Underlying diagnosis & Mortality
20
2522
15
20
10 8
11
TotalDied
55
43
1 1 1
4 43
01 1 1 1
2
Died
00
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Air leaks on admission = 16
3
18RDS
2
11
8Pulm hypoplasiaMASTTNPneumoniaSpontaneous
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Outcome of survivors
10
Normal devtDelayed devtN f ll
27
2 No follow-up
7
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Summary & Recommendations
Multiple aetiology & not specific to NICUp gy pNot always caused by ventilationBeware post-surfactant effectp? MortalityVery low rate of CPyThe undiagnosed & untreated pneumothoraces –future approach
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.Thank youy