The SAGES Manual on the Fundamental Use of Surgical Energy (FUSE)The SAGES Manual on the Fundamental Use of Surgical Energy (FUSE) emphasizes good communication and promotes best practice for the use of electrosurgical, ultrasonic, and microwave energy sources in the operating theatre. This manual describes the basic technology of energy sources in the operating room and demonstrates the correct use and indications of energy sources in clinical practice. It also addresses the potential complications, hazards, and