**Assessment of portal pressure** - Clinically significant portal hypertension SPH (defined by a hepatic venous pressure gradient [HVPG]>10 mmHg) predicts a higher rate of postoperative complications and a lower long-term survival.​ - *note*: accuracy of HVPG measurement is controversial in patients with nonalcoholic fatty liver disease —sources [link 1](https://doi.org/10.1016/j.jhep.2020.10.003) and [link 2](https://doi.org/10.1016/j.jhep.2021.09.029)