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Arrythmias
Description
FOCP- cardio Mind Map on Arrythmias, created by greenfylde on 20/11/2013.
No tags specified
focp- cardio
focp- cardio
Mind Map by
greenfylde
, updated more than 1 year ago
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Created by
greenfylde
over 10 years ago
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Resource summary
Arrythmias
Atrial Fibrillation
common (5-10% of 65+)
300-600/min atria contraction
causes: any condit resulting in increased atrial pressure, increased atrial musc mass, atrial fibrosis, inflamm + infiltration of atrium
most common: HYPERTENSION, HEART FAILURE
also: rheumatic heart disease, alcohol intoxication, thyrotoxicosis
family linked. may be idopathic. many after CABG or valv surg
symps
variable, maybe palps
signs
irregularly irreg pulse
investig
ECG
fine oscilations of baseline w/no clear P waves. QRS rythym rapid + irregularly irreg. Ventric rate 120-180, but slows w/treatment
management
treat provoking cause (eg alch toxicity, hyperthyroid, chest infect)
acute manage- ventricular rate control (drugs which block av node) or cardioversion (electircally or medically)
+ Anticoags (to decrease stroke risk)
if have risk factors
1 major (protehtic valve, rheumatic mitral valve disease, prior CVA/TIA)
or 2 minor: 75+, CCF, hypertens, DM
other risks: age 65-74, CAD, hx of thyrotoxicosis, F, LA enlarge, LV dysfunct, atrial thrombus or reduced atrial appendage emptying
warfarin if hi risk, aspirin if medium
rhym control for younger symptomatic + physically active pts
rate control for perm form of arrhythmia w/symps OR 65+
digoxin, B-blockers, or CCBs
recog on ECG
sinus rythum
AF
tachycardias
narrow
broad complex
pulseless electrial activity
dead
looks just like sinus rhythm, but no pulse
asystole
degrees of AV block
1- increased PR interval
2. 1st degree- wenckebach - progressively longer PRs until drop, then repeat
2nd degree: 2:1 or 3:1 block, not progressive
3. complete heart block, Ps and qrs have no relat to each other
acute/previous MI
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