Accuracy of Continuous and Non-invasive Hemoglobin Monitoring

Accuracy of Continuous and Non-invasive Hemoglobin Monitoring During Laparoscopic Gastrectomy: Observational Study

The primary purpose of this observational study is to investigate the accuracy on the continuous and non-invasive hemoglobin monitoring during laparoscopic gastrectomy.

Inclusion Criteria:

• laparoscopic gastrectomy under general anesthesia

Exclusion Criteria:

• atypical hemoglobin disease, infective state, cardiovascular disease, peripheral vascular disease