Nature Summary: Living Donor Liver Transplantation Techniques

[Clark]

https://www.nature.com/nature-index/topics/l4/living-donor-liver-transplantation-techniques

Living Donor Liver Transplantation Techniques


Summary
Living donor liver transplantation (LDLT) has evolved into a life-saving procedure that relies on the careful selection of donor grafts, precise surgical planning and enhanced perioperative management. Donor safety remains paramount, guiding the choice between left lateral, left lobe and right lobe grafts according to recipient body size and underlying pathology. Preoperative imaging, notably computed tomography (CT) volumetry, establishes graft size and vascular anatomy, ensuring an optimal graft-to-recipient weight ratio and reducing the risk of small-for-size graft syndrome. Surgical refinements such as minimally invasive donor hepatectomy and refined parenchymal transection techniques have reduced postoperative morbidity. In the recipient, portal flow modulation strategies—including splenectomy, splenic artery ligation and portocaval shunting—are employed to prevent excessive portal hyperperfusion and shear injury to a marginal graft. Advances in machine learning and deep-learning algorithms now support donor–recipient matching and accurate graft weight estimation, further personalising care and improving long-term graft survival. Attention to graft regeneration kinetics, monitored through serial volumetry and liver function markers, underpins protocols for immunosuppression and rehabilitation. Collectively, these technical advances underscore a global trend towards precision LDLT, balancing donor risk and recipient benefit with ever greater fidelity.
...