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Interstitieel longlijden: samenvatting

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Samenvatting van de les + PPT interstitieel longlijden (2022)

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Uploaded on
August 18, 2023
Number of pages
6
Written in
2022/2023
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Interstitieel longlijden (ILD)
= verzamelnaam voor meer dan 200 long-AD

Situering
OBSTRUCTIEVE AD => Tiffeneau (FEV1/VC) ↓
(diffuse obstructie thv LW)
 Astma
 COPD

RESTRICTIEVE AD => Inkrimping van alle
 Met normaal longparenchym longvolumes
= AD tgv thoraxwand (bv hoogstand diafragma) => TLC (totale
 Obesitas longcapaciteit) ↓
 SkeletAD bv. kyfoscoliose
 SpierAD bv. diafragmaparalyse (N => Tiffeneau nl: zowel FEV1
phrenicusletsel), ALS, spierdystrofie als VC ↓
(Duchenne)
 Na longresectie bv. pneumectomie
 Met aantasting longparenchym
= interstitiële longAD (ILD)
 IPF = idiopathische longfibrose
 Tgv AIZ (RA, SLE)
 Tgv externe blootstelling
- ORG -> overgevoeligheidspneumonitis
- ANORG -> pneumoconiose
- F -> drug-induced lung injury
 Sarcoïdose


Kliniek
 Progressieve dyspnoe (eerst enkel bij inspanning, uiteindelijk dyspnoe in rust)
 DROGE hoest (geen sputa/expectoria)

KO
 Vaak normaal
 Soms tachypnoe (sneller en meer opp. ademen door stijvere longen)
 Soms fijne crepitaties bibasaal & eind-
DD: bibasale eind-inspiratoire crepitaties
inspiratoir (vnl bij IPF)
 Pneumonie (ook koorts & acuut
Radiologie verhaal)
 Bronchiectasiën (chr. productieve
 Zeer divers
hoest= slijm)
 Verspreide, versterkte interstitiële
tekening over beide longvelden
 Soms (micro)nodulaire opaciteiten
 Soms cystische ophelderingszones => honingraatvorming (CT) (in
vergevorderd stadium)


RF (ouder w (kortere telomeren), genetische
Pathogenese predispositie, omgeving (bv. persistente AG-
BEGINFASE: ziekte-specifiek blootstelling) => chronische
EINDFASE: fibrose inflammatie

1 Oplossen (regressie) Fibrose
-> nl. longweefsel ->

, Classificatie (enkel kadertjes kn)




Oorzaken
I) Bekende oorzaken:
- inhalatie van stof uit beroep of omgeving (bv. pneumoconiose) -
bestraling
- medicatie - infecties
- maligniteit (lymfangitis carcinomatose, lymfoom long of uitzaaiing langs
LV thv interstitium)
II) Onbekende etiologie:
Oa sarcoïdose, idiopathische longfibrose (IPF) …

IPF = idiopathische longfibrose
Verloop /  Traag progressieve afname in longfunctie en levensduur mét acute
prognose exacerbaties
 Gemiddeld 3 à 5 jaar (slechte prognose)
 Wanneer combi met emfyseem in bovenkwab (vaak ex-rokers) sneller
progressief!

Kliniek => progressief verergerende dyspnoe en droge hoest
KO  Fijne crepitaties: bibasaal eind-inspiratoir
 Soms clubbing (horlogeglasnagels)
Pt Oudere Pt, vaak (ex-)roker
Diagnose Longbiopt (thoracoscopisch / open) MAAR is invasief
=> kliniek+ duidelijk CT beeld ook goed

Beeldvorm  RX: reticulaire patronen (perifeer) => honingraat (eindstadium)
ing  CT/ HRCT: matglasaspect (beginfase) – in buiklig (vnl
onderkwabben)

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