Erratum
The Volume 15, No 1 issue of Advances in Pulmonary Hypertension contained an error in the PH Grand Rounds column, “Pulmonary Arterial Hypertension: ‘A Journey to Lung Transplant.” The PVR values in Tables 2 and 3 reflect an incorrect calculation from the original outside medical records. The editors thank Michael Slack, MD, Professor, Department of Pediatrics, University of Maryland School of Medicine; Director, Pediatric and Adult Congenital Interventional Cardiac Catheterization Laboratory, University of Maryland Medical Center, Baltimore, for pointing out this oversight. Dr Slack reinforces that PVR is the basis for many critical clinical decisions and provides the following 3 different ways to express PVR:
In cardiac ICUs, the units of dyn.s/cm5 are often used and the conversion factor between this value and Wood units is, conveniently, 80. During cardiac catheterization, the convention is to use the Cardiac Index (not cardiac output) and express the PVR in Wood units, which are indexed to body surface area.