Multifocal atrial tachycardia mat overview.
Mat and copd.
Most commonly seen in patients with severe copd or congestive heart failure.
Multifocal or multiform atrial tachycardia mat is an abnormal heart rhythm specifically a type of supraventricular tachycardia that is particularly common in older people and is associated with exacerbations of chronic obstructive pulmonary disease copd.
En qué consiste la enfermedad pulmonar obstructiva crónica copd por sus siglas en inglés.
Multifocal atrial tachycardia mat is often found in copd and has been frequently described during times of exacerbation 94 95 this is important to recognize because patients with copd and mat have a high mortality rate.
The tachycardic threshold for multifocal atrial tachycardia mat has traditionally been set at 100 bpm but a review of 60 patients with multifocal atrial arrhythmias found a stronger association between the incidence of copd exacerbations and the diagnosis of mat if a threshold of 90 bpm was used.
Copd is associated with specific electrocardiographic ekg abnormalities while an increased incidence of cardiac arrhythmias has been reported which includes atrial fibrillation af atrial flutter afl multifocal atrial tachycardia mat and non sustained ventricular tachycardia nsvt.
68 it has been consistently shown that fev 1 and fvc are inversely related with the prevalence of arrhythmia independently of other factors such as age gender smoking blood pressure and body mass index.
Normally the heart rate is controlled by a cluster of cells called the sinoatrial node sa node.
Patients with mat frequently have significant comorbidities especially chronic obstructive pulmonary disease copd and respiratory failure and are often treated in icus.
Common heart rhythm disturbances associated with copd include multifocal atrial tachycardia mat and atrial fibrillation af with af estimated to exist in around 22 of copd patients.
A rapid irregular atrial rhythm arising from multiple ectopic foci within the atria.