Flashcards in Fundamentals Deck (20):
Resting membrane potential of P-cells is
-50 to -60mV
Is progression of SND to CHB high or low
3 side of Triangle of Kock
Antero-septal leaflet structure
Tendon of Todaro
Sarcoidosis or giant cell myocarditis accounts for what percent of unexplained AV block in <55yr
Which type of 2nd degree AVB is likely to progress to CHB
Are 1st degree and asymptomatic 2nd degree I indications for pacing?
Does asymptomatic Mobitz II indicate pacing?
Yes - high level of progression
If symptoms are due to AV block, should we permanently pace?
4 examples of reversible AV block
Lyme Carditis disease
What predicts whether bifascicular block will advance to CHB?
Symptoms are strongest predictor
Does pacing for bifascicular block improve mortality
No, only improves symptoms.
What is an assassin bug
Triatominae or Kissing bug - spreads Chagas disease
Chagas is prevalent where
Central and south america
Chagas acute heart infection lasts for how long
How long till Chagas heart disease surfaces
10-20yrs - established in blood test
What carries Lyme disease
How long does Lyme disease last without medial intervention
Normally resolves within 4wks
What percentage of Lyme infected develop cardiac problems
5% (50% of which is AV block)