Arrhythmias

Front 1

What does a narrow QRS tell you?

Back 1

Is normal
d/t rapid, symmetrical and exclusive activation of the ventricle via an INTACT His-purkinje system

Front 2

A wide QRS implies?

Back 2

Activation of the the ventricle in a different way
Ventricular preexcitation (Wolf-Parkinson syndrome)
Bundle Branch Block (BBB)
Ventricular Focus (premature ventricular contraction)

Front 3

AV accessory pathway

Back 3

Pathway between Left atrium and left ventricle

Front 4

Reentry

Back 4

A wave of depolarization that travels a closed circuit

Front 5

When do you provide Defibrillation?

Back 5

Only for pulseless VT or VF (also perform CPR)

Front 6

What drug do you give someone with an SVT

Back 6

Adenosine (if no IV perform a cardioversion)

Front 7

Orthodromic AVRT

Back 7

(conduction retrogarde through the accessory bundle). Usually a narrow QRS complex preceded by a p-wave.

Front 8

Antidromic AVNRT

Back 8

(anterogarde conduction through the abnormal accessory bundle). The ECG shows wide QRS complexes followed by retrograde P-waves. The RP-time is >> 100ms.

Front 9

Symptoms of SVT

Back 9

Mainly Palpitations
Less common include dizziness, fatigue, feeling of doom and syncope
Babies are at a higher risk of shock

Front 10

Wolff-Parkinson-White Syndrome

Back 10

Ventricular preexcitation +symptoms
Higher risk for sudden death
caused by the presence of an abnormal accessory electrical conduction pathway between the atria and the ventricles.

Front 11

What is the ablation target for SVT

Back 11

The accessory pathway