“…2 To avoid overtreatment and decompensation of residual organs and their function, minimally invasive surgery (MIS) and the far-advanced surgical instruments (the more powerful healed blood vessels system), and well-prepared works, such as transient blood occlusion, are frequently applied in modern surgical procedures to assist the process of the surgery in precise and uneventfully. 3,4 Therefore, we highly appreciate Dr. Tsai et al’s 1 work to identify the risk factor (warm ischemic time >25 minutes) associated with hemorrhagic complications intraoperatively and postoperatively. However, it is interesting to know how the authors identify the cutoff value of warm ischemic time by 25 minutes.…”