THE MUSCLE POWER STUDY: Surgery related muscle loss and muscle strength after complex abdominal surgery for pseudomyxoma peritonei, pancreatic, liver and colorectal cancer

Interventions: None
Primary outcome(s): The primary outcome of this study is the proportion of patients who have clinically relevant SRML, defined as =5% muscle loss within one week after surgery measured by bedside ultrasound measurements.
Study Design: N/A: single arm study, Open (masking not used), N/A , unknown, Other