title: Relationship between tissue tension and thermal diffusion to peripheral tissue using an energy device.
abstract: The aim of the study was to assess the relationship between tissue tension and thermal diffusion to peripheral tissues using an electric scalpel, ultrasonically activated device, or a bipolar sealing system. The mesentery of pigs was excised with each energy device (ED) at three tissue tensions (0, 300, 600 g). The excision time and thermal diffusion area were monitored with thermography, measured for each ED, and then histologically examined. Correlations between tissue tension and thermal diffusion area were examined. The excision time was inversely correlated with tissue tension for all ED (electric scalpel, r = 0.718; ultrasonically activated device, r = 0.949; bipolar sealing system, r = 0.843), and tissue tension was inversely correlated with the thermal diffusion area with the electric scalpel (r = 0.718) and bipolar sealing system (r = 0.869). Histopathologically, limited deep thermal denaturation occurred at a tension of 600 g with all ED. We conclude that thermal damage can be avoided with adequate tissue tension when any ED is used.
authors.affiliation: Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan.
authors.forename: Akihiro
authors.initials: A
authors.lastname: Kondo
authors.affiliation: Department of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Nishizawa
authors.affiliation: Department of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Japan.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Ito
authors.affiliation: Department of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Japan.
authors.forename: Norio
authors.initials: N
authors.lastname: Saito
authors.affiliation: Pathology Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Fujii
authors.affiliation: Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan.
authors.forename: Shintaro
authors.initials: S
authors.lastname: Akamoto
authors.affiliation: Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan.
authors.forename: Masao
authors.initials: M
authors.lastname: Fujiwara
authors.affiliation: Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan.
authors.forename: Keiichi
authors.initials: K
authors.lastname: Okano
authors.affiliation: Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan.
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Suzuki
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D004598:Electrosurgery / Q000295:instrumentation*; D008643:Mesentery / Q000473:pathology / Q000502:physiology / Q000601:surgery*; D013314:Stress, Mechanical; D013552:Swine; D055471:Thermal Diffusion; D013817:Thermography; D059708:Ultrasonic Surgical Procedures / Q000295:instrumentation*
keywords: energy device; thermal damage; tissue tension