- In a hemodynamic assessment in observation period, participants with 2 pulmonary capillary wedge pressure (PCWP [if it is not available, pulmonary arterial diastolic pressure {PADP}]) values greater than or equal to 18 mmHg measured at an interval of at least 15 minutes and the second measurement value is within positive 20 percent (%) and negative 20% compared with the first 1