Cumulated time with low bispectral index values is not related to the risk of new cancer or death within 5 years after surgery in patients with previous or prevailing malignancy.
From the Departments for *Anesthesia and Intensive Care and †Clinical Physiology, Lanssjukhuset, Kalmar; Department of Medicine and Health Sciences, University Hospital Linköping, Linköping; and ‡Section for Anesthesiology and Intensive Care Medicine, Karolinska Institutet, Stockholm, Sweden.
Preclinical data indicate that anesthesia and surgery may promote cancer growth. We previously found no increased risk of malignant disease within 5 years regarding duration of general anesthesia (TANESTH) and time with Bispectral Index (BIS) under 45 (TBIS
