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WG Syncope

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Collegedictaat van 4 pagina's voor het vak OVV-3 aan de UvA (WG Syncope)

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WG Syncope

Poll: welke wegraking is een syncope?
1. Door drukte
2. Door epilepsie
3. Door hypoglycemie
Goede antwoord = drukte. Andere zijn niet syncope. Syncope = voorbijgaand
bewustzijnsverlies door cerebrale hypoperfusie.
Wegraking is overkoepelende term
Vallen gaat alleen maar over onverwacht terecht komen op lagere positie zonder
bewustzijnsverlies.

Reflexsyncope
- Vasovagaal = door pijn, angst, staan, drukte
- Situationeel = door mictie, hoesten, defaecatie, uitrekken
- Sinus-caroticus = autonome activatie (zweten, bleek, misselijk)

Overlap vallen en synope bij ouderen. 50% van de wegrakingen weet de oudere niet dat er
sprake was van bewustzijnsverlies. Oudere denkt dus dat ze gevallen zijn, terwijl er wel
degelijk sprake was van syncope. Presyncope bij minder ernstige afwijking (lichtere
hypoperfusie). De anoxia reserve tijd is 5-6 seconde voordat je wegraakt.

Wat is de incidentie?
Incidentie is 2-6% per jaar. 1/3 recidief binnen 2 jaar. 40% heeft licht-ernstig letsel. Met de
leeftijd neemt de kans op letsel toe. De meest voorkomende oorzaak bij ouderen is
orthostatische hypotensie (15-30%), bij jongeren de vasovagale collaps. Sinus caroticus 20%.

Orthostatische hypotensie
+ postprandiale hypotensie.

Cardiale syncope
- Aritmie
- Hartfalen

Mechanismen
- Perifeer
o Verlaagde CO
o Endotheel dysfunctie (vaatweerstand)
- Centraal
o Vaatschade, witte stofafwijkingen
▪ Looppattroon
▪ Balans
▪ Excutieve functie

Sinuscaroticus overgevoeligheid
Komt veel voor bij ouderen. Ontstaat bij strakke boorden, stropdas, omhoog/zijwaarts
kijken, maar kan ook door medicatie (cardiovasculair, psychotroop). Het komt door

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Uploaded on
October 12, 2022
Number of pages
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Written in
2021/2022
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Wg syncope

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