arrythmia

1. AV block: 1st degree: on ecg there is defined by an pr interval greater than200 msec 2 nd degree: the impairment results in failure to conduct an impulse which causes a skipped beat 3 rd degree: occurs when signal between atrua and ventricles is completely blicked. on ecg there is no relationship between p wave and qrs complexes.

2. supraventricular tachyarrythmia

2.1. re entry tachycardia: episodes often short and end suddenly and occur becuase of re enterant circuit.

2.1.1. walf parkinson white syndrome: specific type of problem with the electrical system of heart . has short PR interval ,wide qrs complex.

2.1.1.1. atrial flutter: starts in the atrial chambers of the heart varying A-V conduction.

2.1.1.1.1. atrial fibrillation: rapid and irregular breathing of the atrial chambers of heart. no p wave and HR about 150 bom.

2.2. ventricular

2.2.1. VT:symptoms: light headbess, palpitations,chestpain,cardiac arrest.

2.2.1.1. VF: cardiac arrest with loss of consciousness and no pulse.

2.2.1.1.1. torsades de pintes: prolonged qt interval . palpitations , dizziness , fainting , sudden cardiac death.

3. tachyarruthmia

3.1. sinus tachycardia

3.1.1. it is an elevated sinus rhythm characterised by an increase in the rate of electrical impulse arising from SA node.

4. bradyarrythmia

4.1. Exam date:

4.2. Type of exam:

4.3. sick sinus syndrome: causes: ischemia,infarction,degeneration and fibrosis. lightheadness, chest pain,fatigue,nausea..treatment:artificial pacemaker

4.4. sinus bradycardia: rate under 60 bpm. lightheadness, dizziness,hypotension,vertigo and syncope.