[Cardiopulmonary stress test--physiological basis and key variables].
A recent report in Harefuah introduced cardiopulmonary exercise testing (CPX) and its role in evaluating effort intolerance. Despite the fact that multiple guideline documents and scientific statements have been published in the last few years by the leading European and American societies, summarizing the incremental information supplemented by the addition of ventilatory gas exchange measurements, CPX continues to be underutilized by the practicing clinician. The reasons for this are many and include the requirement for additional equipment, the lack of understanding of the physiological basis by the practicing clinicians, and the seemingly complicated graphical report of this technique. We shall review the physiological basis of the technique, and summarize the key CPX variables and their clinical implications.
The Pulmonary institute of the Tel Aviv Medical Center.
Avi
A
Man
The Department of Cardiology at Tel Aviv Sourasky Medical Center, affiliated to the Tel Aviv University, Sackler Faculty of Medicine, Tel Aviv, Israel.
Gad
G
Keren
The Department of Cardiology at Tel Aviv Sourasky Medical Center, affiliated to the Tel Aviv University, Sackler Faculty of Medicine, Tel Aviv, Israel.
Yan
Y
Topilsky
D002318:Cardiovascular Diseases / Q000175:diagnosis* / Q000503:physiopathology; D005080:Exercise Test / Q000379:methods*; D017079:Exercise Tolerance / Q000502:physiology*; D006801:Humans; D017410:Practice Guidelines as Topic; D011659:Pulmonary Gas Exchange