extra : Arrythmia Flashcards
بسم الله الرحمن الرحيم وبه نستعين
SINUS TACHYCARDIA
>100bpm Symphathatic FEVER EXCEPT Dpitheria and typhoid Hyperthyroidism short R-R interval
sinus bradycardia
<60 Vagal stimulation Reguation of arterial blood pressure Hypothyroiddim B blocakes
sinus bradycardia
<60 Vagal stimulation Reguation of arterial blood pressure Hypothyroiddim B blocakes
Respitaroty sinus Rythm ?
اثناء الشهيق
strach receptors > low vagal stmiulation > inhibitg cardio inhibitory area
incrasing HR?
During expiration : vagal tone is Restored
AV Nodal rhyhm?
occur in case of stop of SAN discharge?
Inverted or masked P Wave
short PR interval closer to ventricle
normal qrs
SV Extrasytsole and V Extrasystole
P WAVE
QRS
T
PR
COMPENSATORY PASUE
P WAVE : SV inverted or absent v : absent
QRS : Normal v: wide bizzare high
T: Normal v: inverted due to first dep firs rep
PR : Shortened v : —————–
CP: SV: Incomplete v: complete
SAN resetting ?
On SV extrasystole can supress and reset the timing of SAN
Ventricular> cannot no rterograde
Cause of ectopic tachycarida?
Ectopic Foucs
Re-enrty phenomenon
Supreventriculat taachycardia
PSVT: inverted p wave or suprimposed on T wave
Atrial flutter : abnormal inverted absent p wave and pr shortened
atrial fibrillation
Treatment of PSVT?
VCAC
Vagal stimulation : CIOVE Carotid massage Induction of vomitting Occluo-cardiac reflex Valasva mauver
Cardioversion
Antiarrthymic
Radiofrequency:Catheter ablation
Atrial flutter
highet atrial late due to ectopic focus
250-350 conducted only 125-175 (physiological AVN Block )
abnormal p wave with its ratio with qrs 2:1 or 3:1
SAW TOOTH APPEARNCE
Treatment of atrial fibrillation ?
Cardioversion
digitalis : فيونكات يزود مدة عدم الاستجابة
Anticoagulants
aTRIAL Fibrillation due to
Multiple foci in the artirum: bag of worms
Reentrty phenomenon
Atrial fibrillation describe?
Irregular ventricular beats with pulsus defecit - QRS varianlty distanced
lost pumping power of atrium bag of worms
PR interval irregular duration
in PAT . Atrial flutter and fibrillation complication ?
Dyastolic dysfunction > Heart failure
Paroxysmal ventricular tachycardia?
نبضات في البطين متتالية مش طبيعية مفيش بينهانبضة واحدة طبيبيعة ياعمر !
عشان ؟
ventricular ectopic focus
re-entrt
norma atrial impulses
ventricle : 150-200 casuing diastolic dysfunction
ECG? absent p , slurred notches QRS , Inverted T
Treatment :;Cardioversion
The ventricular fibrillation is due to ?
ischemia
electric shock
or
Ectopic foci in the vulnerable period?
Vunerable period?
period in midtime of repolariztion T wave :
Some fibers depeolarized some incompletelty reploarized some repolarized
stimulation of fibers there casueing reentry phenomenon and ectopic focus develops
Ventruclar fibrillation chracteristics?
Absent coordinated beat No pulse No cardiac Output ECG: Undulating waves Treatment: Cardioversion 2500-3000
Wolf parkinson shite syndrome ?
presnce of accessory bundle of kent between the artium and ventricule
there are two types of conduction ? ]
Through kent: bypass the delay of the AVN and casuing short pr and slow cell to cell deplarziation of the ventricle
Through AVN With the delay and ventrcular REMAINDER OF QRS
Delta WAVE
Wolf parkinson white syndrome and ecg ?
Normal P wave
Short PR
Prolonged QRS slurred on upstroke Delta wave
AV block casuses?
Ischemia to AVN OR BUNDLES
Septal infarction
Compression of avn or bundles by scar
Damage to the AVN or bundles during surgical interventricular septal defect
Myocarditis damagin avn diptheria rhematic fever
1st and snd degree heart block ?
1ST : Prolonged pr interval no drop
2nd : P:QRS 2:1 3:1 drop
Wenekebach phenomenon ?
Prlongation of the pr interval till the drop the recycles
Complete heart block ?
Complete dissociation between the atria and venricles
