3 delen : manubrium, corpus & xyphoid
Insnoeringen voor ribben
Sternotomie: Pijn borst maar ook rug -> ribben worden gespreid
Na operatie vastmaken met ijzerdraad
ARTERIA MAMMARIA
Meest gebruikte greffe
afkomstig van subclavia -> sternumrand -> a. epigastrica & musculphrenicus takken
- secundum ASD midden in atrium septum
- primum ASD zijkant septum
- SVC sinus venosus ASD gelegen bij superior vena cava
- IVC sinus venosus ASD gelegen bij inferior vena cava
! steekwonden in borst -> vaak in rechterventrikel !
Ventrikel septum defect (VSD) is congenitaal & ventrikel septum defect ruptuur (VRS) is postinfarct
KLINISCH BELANG LINKER ATRIUM
Thrombusvorming in linker hartoor
Oorsprongen voor VKF (voorkamerfibrilatie)
Dilatatie bij mitralisklepinsufficiëntie
Chirurgische toegang tot mitralisklep -> hechtingen in linkeratrium zijn instabiel
KLINISCH BELANG LINKERVENTRIKEL
3 x gespierder dan RV
Meer conische vorm
Pomt tegen hoge weerstand
Ischemie
Infarct, aneurysma
Hartfalen
Klepafwijkingen
TRICUSPIDALISKLEP
- 3 driehoekige klepblaadjes (anterior (infundibulair), posterior (marginaal), mediaal (septaal))
- Verbonden met anulus
- Verbonden aan papilairspieren met chordae tendineae
- Gelegen naar bundel van His met AV noduw
- Veel voorkomend is tricuspidalisklep insufficinetie door dilatatie anulus & RV
- Congenitale afwijking: ebstein anomalie (grootte atrium > ventrikel) & AV kanaal
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