Mat Ecg Criteria

Multifocal atrial tachycardia mat is a type of irregular heartbeat in which the heart beats faster than it should.

Mat ecg criteria. In addition to a heart rate greater than 100 beats per minute the characteristic electrocardiographic feature is variability in p wave morphology with each unique p wave morphology felt to indicate a different site of atrial origin. The presence of p waves with different shapes and tachycardia confirm that the rhythm is multifocal atrial tachycardia mat. Multifocal atrial tachycardia is characterized by an electrocardiogram ecg strip with three or more discrete p wave morphologies in the same lead not including that originating from the sinoatrial node plus tachycardia which is a heart rate exceeding 100 beats per minute although some suggest using a threshold of 90 beats per minute. In mat there is only one p wave between two consecutive qrs complexes.

This arrhythmia may be easily confused with atrial fibrillation. Most commonly seen in patients with severe copd or congestive heart failure. Multifocal atrial tachycardia mat overview. Some authors have suggested that patients who have a heart rate less than 100 bpm but who satisfy all other criteria including the clinical profile commonly observed with mat be considered to have multifocal atrial rhythm or multifocal atrial bradycardia if the rate is less than 60 bpm.

Secondary st t changes in left sided leads left ventricular hypertrophy is often accompanied by j point depression downsloping st segment and inverted asymmetric t waves i the. This ecg is from a patient with chronic obstructive pulmonary disease copd. A rapid irregular atrial rhythm arising from multiple ectopic foci within the atria. Ecg changes in left ventricular hypertrophy lvh large r waves in left sided leads v5 v6 i and avl and deep s waves in right sided leads v1 v2 indicate the the vector of the left ventricle is amplified.

Multifocal atrial tachycardia mat ecg. Multifocal atrial tachycardia mat is an arrhythmia that can be seen in a variety of clinical disorders. Bifid p wave with 40 ms between the two peaks. It is typically a transitional rhythm between frequent premature atrial complexes pacs and atrial flutter fibrillation.

2016 ishlt listing criteria for heart transplantation. Lae produces a broad bifid p wave in lead ii p mitrale and enlarges the terminal negative portion of the p wave in v1.