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Hart & Vaten 2 | samenvatting "Vaten"

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Samenvatting van het onderdeel ‘Vaten' van de module “Hart & Vaten 2”. Gebaseerd op slides én lesnotities, alsook aangevuld met het handboek en de beantwoorde vragen uit de studieleidraad.

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HART & VATEN 2​ ​ ​ ​ ​ ​ ​ ​ 2025-2026

HART & VATEN 2 2025-2026..........................................................................................................................1
Anatomie + semiologie.................................................................................................................................. 6
Anatomie & fysiologie van het arteriële, veneuze en lymfatische stelsel................................................... 6
Non-invasieve vaatanalyse - farmacologie - chirurgie............................................................................... 9
Non-invasieve vaatonderzoek.................................................................................................................... 9
Ankle-brachial index (ABI)....................................................................................................................9
Doppler...............................................................................................................................................10
Duplex................................................................................................................................................ 10
Farmacologie............................................................................................................................................13
Chirurgie...................................................................................................................................................16
Key points.................................................................................................................................................18
Examenvragen......................................................................................................................................... 18
TIA / CVA....................................................................................................................................................... 20
Casus....................................................................................................................................................... 20
Extracraniële vaten...................................................................................................................................20
TIA / stroke............................................................................................................................................... 21
Casus....................................................................................................................................................... 24
Key points.................................................................................................................................................25
Examenvragen......................................................................................................................................... 25
Ischemie van het bovenste lidmaat............................................................................................................27
Pathologie bovenste lidmaat.................................................................................................................... 27
Ischemie: acuut vs. chronisch.................................................................................................................. 27
Ischemische aandoeningen van bovenste lidmaat.................................................................................. 29
Atherosclerose van bovenste lidmaat (acuut).................................................................................... 29
Embool in bovenste lidmaat (acuut)................................................................................................... 29
Raynaud............................................................................................................................................. 30
Thoracic outlet syndroom (TOS)........................................................................................................ 31
Takayasu disease...............................................................................................................................33
Giant cell arteritis = temporale arteritis...............................................................................................34
Examenvragen......................................................................................................................................... 35
Ischemie van het onderste lidmaat............................................................................................................ 37
PAD van onderste lidmaat........................................................................................................................37
Chronische arteriële insufficiëntie van onderste lidmaat - specifieke aandoeningen............................... 44
Syndroom van Leriche....................................................................................................................... 44
Ziekte van Buerger............................................................................................................................. 45
Chronische arteriële insufficiëntie van onderste lidmaat - key points.......................................................45
Acute arteriële insufficiëntie van onderste lidmaat................................................................................... 46
Diabetische arteriopathie..........................................................................................................................48
Niet-atherosclerotische occlusieve vaataandoeningen............................................................................ 50
Vasospastische pathologieën............................................................................................................. 50
Inflammatoire en dysplastische pathologieën.................................................................................... 50
Neurovasculaire compressie.............................................................................................................. 50
Medicatie-geïnduceerde pathologie................................................................................................... 51
Andere................................................................................................................................................51
Arteriële insufficiëntie van viscerale vaten............................................................................................... 52

1

, Acute mesenterica ischemie.............................................................................................................. 52
Chronische mesenterica ischemie..................................................................................................... 52
A. renalis stenose...............................................................................................................................53
Key points...........................................................................................................................................53
Examenvragen......................................................................................................................................... 53
Vasculair trauma.......................................................................................................................................... 56
Basic trauma approach............................................................................................................................ 56
Tekens van vasculaire schade................................................................................................................. 56
Arteriële schade....................................................................................................................................... 56
Traumatische aorta ruptuur...................................................................................................................... 58
Key points.................................................................................................................................................60
Examenvragen......................................................................................................................................... 60
Aorta-aneurysma..........................................................................................................................................61
Aneurysma............................................................................................................................................... 61
Abdominaal aorta aneurysma (AAA)........................................................................................................63
Thoracaal aorta aneurysma (TAA)........................................................................................................... 68
Andere aneurysma's................................................................................................................................ 70
Key points.................................................................................................................................................71
Examenvragen......................................................................................................................................... 71
Dissectie....................................................................................................................................................... 73
Dissectie...................................................................................................................................................73
Andere dissectie.......................................................................................................................................77
Key points.................................................................................................................................................78
Examenvragen......................................................................................................................................... 78
Veneuze aandoeningen............................................................................................................................... 79
Anatomie.................................................................................................................................................. 79
Veneuze aandoeningen........................................................................................................................... 79
Oppervlakkige veneuze insufficiëntie....................................................................................................... 79
Diepe veneuze insufficiëntie.....................................................................................................................85
Key points - veneuze insufficiëntie........................................................................................................... 85
Examenvragen......................................................................................................................................... 85
Oppervlakkige veneuze trombose - tromboflebitis (TBFL)....................................................................... 85
Diep veneuze trombose (DVT).................................................................................................................86
Take home message................................................................................................................................ 93
Key points - veneuze trombose................................................................................................................93
Examenvragen......................................................................................................................................... 93
Trombofilie....................................................................................................................................................94
Normaal verloop....................................................................................................................................... 94
Trombofilie................................................................................................................................................94
Key points.................................................................................................................................................97
Congenitale vasculaire malformaties (CVM)............................................................................................. 98
Congenitale vasculaire malformaties....................................................................................................... 98
Classificatie van Mulliken & Glowacki...................................................................................................... 98
Key points...............................................................................................................................................102
Anticoagulantia, antiaggregantia & fibrinolytica.................................................................................... 103
Antitrombotische behandeling................................................................................................................ 103
Antiaggregantia...................................................................................................................................... 103
Acetylsalicylzuur (aspirine)...............................................................................................................103
P2Y12-receptorblokkers = trienopyridines....................................................................................... 103
2

, Glycoproteïne IIb/IIIa-inhibitoren...................................................................................................... 104
Anticoagulantia.......................................................................................................................................104
Vitamine K antagonisten.................................................................................................................. 104
Heparine & LMWH........................................................................................................................... 104
DOAC............................................................................................................................................... 105
Fibrinolytica............................................................................................................................................ 105
Key points...............................................................................................................................................106
Atheromatose............................................................................................................................................. 107
Key points...............................................................................................................................................107




3

,Anatomie + semiologie
Anatomie & fysiologie van het arteriële, veneuze en lymfatische stelsel
functie
●​ niet-trombogeen transport van bloed
●​ stockage van bloed
●​ regulatie van moleculaire en cellulaire verplaatsingen tussen vaatlumen en extravasculaire ruimte
○​ uitwisseling van nutriënten, zuurstof, afvalproducten, warmte (temperatuur)

Arteriën
wand
●​ intima (endotheel)
●​ media
●​ adventitia

⇒ samenstelling van elke laag verschilt naargelang het type arterie

verschillende type bloedvaten
●​ grote elastische arteriën (bv. aorta)
○​ geleidingsvaten & shock absorbers
○​ conductantievaten
■​ Windkessel effect: uitzetten tijdens systole → verhoogde druk opvangen → tijdens
diastole elastisch terugveren → continue flow garanderen ​
⇒ pulsatie wordt omgezet in continue flow dankzij elasticiteit
●​ middelgrote musculaire arteriën (bv. naar organen)
○​ bloedvoorziening naar perifere organen en weefsels
●​ kleine arteriën = arteriolen (bv. in organen en weefsels)
○​ perifere weerstand → BD op peil houden + weefsels beschermen tegen hypertensie
●​ capillairen en venulen
○​ uitwisselingsvaten (diffusie)

pathologieën
●​ elastische arteriën
○​ vnl aantasting door atheromatose
●​ musculaire arteriën
○​ aantasting door atheromatose en mediacalcinose
●​ arteriolen
○​ aantasting door diffuse fibromusculaire verdikking en hyalinisatie

Venen
●​ oppervlakkig & diep veneus systeem, verbonden door perforanten
●​ kleppensysteem → één stroomrichting
○​ van oppervlakkig naar diep
○​ van perifeer naar centraal

wand
●​ grotere diameter dan arteriën
●​ dunnere wand
●​ minder aantal spiercellen
●​ makkelijk plat te duwen met echoprobe

⇒ fragiele wand, met risico op (definitieve) schade bij trombose
4

, functie: capaciteitsvaten (grote diameter)
●​ veneuze dilatatie → meer bloed in veneus systeem → lager circulerend volume
●​ 4 factoren voor veneuze bloedflow
○​ hartwerking
■​ vis a tergo effect: residuele druk aan het veneuze uiteinden van capillairen
■​ vis a fronte effect: zuigkracht van RA bij zijn lediging
○​ ademhaling
■​ uitademing: diafragma omhoog → daling abdominale druk → bloed naar onderste
ledematen zuigen
■​ inademing: diafragma omlaag → negatieve intrathoracale druk + stijging abdominale
druk → meer veneuze retour
○​ zwaartekracht
■​ werkt zowel in op arteriële als veneuze vloeistofkolom → netto geen effect
○​ perifere pompwerking
■​ spierpomp → centripetale flow door kleppen


Endotheel
functie
●​ bescherming tegen trombose
○​ evenwichtige aanmaak van antitrombotische en protrombotische stoffen
●​ regulatie van vaattonus
○​ vasoconstrictie & vasodilatatie via aanmaak van vasoactieve stoffen en reactie op OS/PS
●​ herstel van schade van endotheellaag
○​ door aanmaak en migratie van GSC vanuit de media

⇒ indien verstoord evenwicht van functies = endotheeldysfunctie
●​ risico op intravasale trombose, atheromatose, intimahyperplasie…


Lymfestelsel
●​ afvoerend transportsysteem (↔ bloedcirculatie: gesloten circulatie)
●​ geen centrale pomp (↔ hart)
○​ lymfeflow = 0 in rust, maar neemt toe met spieractiviteit van het lidmaat
●​ anatomie
○​ ligging: vnl aan mediale zijde
○​ lymfestroom: van diep naar oppervlakkig

functie
●​ lymfecapillairen recupereren overtollige (interstitiële) vloeistof en eiwitten (vnl albumine), en
brengen dit terug naar het veneuze bloed
○​ regulatie van weefseldruk, preventie van oedeem
●​ absorptie van vet en vet-oplosbare vitamines uit het spijsverteringsstelsel en transport onder de
vorm van chyle naar het veneus systeem
○​ chyle = melkachtige vloeistof van eiwitten en vetten
●​ verdediging tegen indringende micro-organismen en ziekte
○​ lymfe filteren in oa. lymfeklieren
1.​ vreemde partikels (bv. bacteriën) verwijderen
2.​ resterende plasmaproteïnen terug afvoeren in bloedcirculatie
○​ lymfocyten vernietigen invaderende micro-organismen (oa. bacteriën)




5

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Erik Debing, Inge Fourneau Handboek vaatheelkunde
Publisher: 15 september 2023 ISBN: 9789464673036 Edition: 1

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