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A, Dependence of reduction in pressure gradient on the magnitude of shunt flow ratio of pulmonary to systemic blood flow (Qp:Qs). B, Dependence of reduction in pulmonary capillary wedge pressure (PCWP) on baseline PCWP‐central venous pressure (CVP), which is the initial driving pressure for shunt flow. Reproduced in part from Wessler et al 13 with permission. Copyright ©2018, Wolters Kluwer Health, Inc.
