Portopulmonary hypertension and hepatopulmonary syndrome

Figure 1 Portopulmonary hypertension screening and follow-up algorithm for liver transplantation candidates in Geneva. LT: Liver transplantation; mPAP: Mean pulmonary artery pressure; POPH: Portopulmonary hypertension; PVR: Pulmonary vascular resistance; TTE: Transthoracic doppler echocardiography.

Figure 2 Challenge algorithm to total vascular exclusion of the liver. DO₂: Oxygen delivery; Hb: Hemoglobin; FiO₂: Inspired oxygen fraction; HR: Heart rate; LVEV: Left ventricular ejection volume; PaCO₂: Partial pressure of carbon dioxide; TVE: Total vascular exclusion of the liver; SvO₂: Mixed venous oxygen blood saturation.

Figure 3 Hepatopulmonary syndrome screening, grading and follow-up algorithm for liver transplantation candidates. Adapted from Pastor et al[48]. SpO₂: Hemoglobin oxygen saturation; HPS: Hepatopulmonary syndrome; PaO₂: Partial pressure of oxygen; MELD: Model for end-stage liver disease; LT: Liver transplantation; ^99mTc NAA: Technetium macroaggregated albumin.