Pulmonary function tests are a group of noninvasive breathing tests that measure how much air your lungs can hold, how quickly you can move air in and out and how efficiently your lungs transfer ...

Another recent CT application has been the use of the technology to evaluate pulmonary vein ostia in patients with atrial fibrillation prior to radiofrequency ablation. Atrial foci localized in the ...

What Are Pulmonary Function Tests (PFTs)? Pulmonary function tests (PFTs) are lung tests. They show how well your lungs work. They’re noninvasive, which means that the doctor doesn’t cut you or put ...

Atrial fibrillation is the irregular and rapid activation of the atria. It is caused by uncoordinated electrical stimulation of the atrial muscle. Atrial fibrillation may be classified as paroxysmal, ...

All blood vessels are specifically structured to perform their function. For example, a capillary is microscopically thin to allow gases to exchange, the arteries are tough and flexible to cope with ...

Swollen veins can signal various underlying health conditions ranging from minor circulatory issues to serious medical concerns. Recognizing the primary causes helps determine when to seek ...

This section describes safety outcomes from the published literature that the committee considered as part of the evidence about this procedure. For more detailed information on the evidence, see the ...