Atrial Multifocal Tachycardia: This is due to the presence of three more atrial ectopic foci of tachycardia. The P waves are, at the least three morphologies different frequency and higher than 100 beats / min. Other acute diseases that cause intracellular potassium leakage appear mainly in the elderly with pulmonary complications.
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- 1 Etiology
- 2 Diagnosis
- 3 Treatment
- 4 Possible complications
- 5 See also
- 6 Sources
- 7 External Links
- Chronic lung diseases.
- Severe respiratory insufficiency.
- Pulmonary embolism.
- Theophylline poisoning.
- Decompensated diabetes mellitus.
- Digitalis poisoning.
The electrocardiographic diagnosis is established by:
- Presence of a succession of three different morphologies of P waves or more.
- Isoelectric line between the P waves.
- Absence of atrial dominant pacemaker, that is, absence of a defined base rhythm.
- Variability of PR, PP and RR intervals.
- Inequality of RR intervals, making differentiation with atrial fibrillation very difficult.
- The atrial frequency is variable and there are slow and fast rhythms of up to 200 L / mp. Usually it is higher than the ventricular rate, so there are P waves that are not conducted.
- Treat the cause of the underlying disease.
- Verapamil is useful for suppressing arrhythmia or reducing atrial or ventricular rate.
- Use B-blockers if they are not contraindicated.
- Class III antiarrhythmics (sotalol and amiodarone).
- Atrioventricular node ablation with permanent pacemaker implantation
in refractory cases.
- Congestive heart failure
- Reduced pumping action of the heart