To study the association of the thoracic fluid content and acute lung injury during liver transplantation.

Acute lung injury is not uncommon after liver transplantation. A new monitor non-invasive cardiac output monitor (NICOM) is designed to measure thoracic fluid content. The investigators attempt to use the parameter thoracic fluid content to investigate its relationship with acute lung injury in liver transplant recipients.

Inclusion Criteria:

• end stage liver disease scheduled for liver transplantation in National Taiwna University Hospital.

Exclusion Criteria:

• allergic reaction
• history of aortic regurgitation
• pre-existing pulmonary disease

end stage liver disease patients scheduled for liver transplantation in National Taiwan University Hospital were enrolled.