tailieunhanh - báo cáo khoa học: "Harmonic scalpel versus flexible CO2 laser for tongue resection: A histopathological analysis of thermal damage in human cadavers"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Harmonic scalpel versus flexible CO2 laser for tongue resection: A histopathological analysis of thermal damage in human cadavers | Hanby et al. World Journal of Surgical Oncology 2011 9 83 http content 9 1 83 4 2 WORLD JOURNAL OF SURGICAL ONCOLOGY RESEARCH Open Access Harmonic scalpel versus flexible CO2 laser for tongue resection A histopathological analysis of thermal damage in human cadavers 1 1 2 1 3 4 Duncan F Hanby Grayson Gremillion Arthur W Zieske Bridget Loehn Richard Whitworth Tamir Wolf4 Anagha C Kakade5 and Rohan R Walvekar1 Abstract Background Monopolar cautery is the most commonly used surgical cutting and hemostatic tool for head and neck surgery. There are newer technologies that are being utilized with the goal of precise cutting decreasing blood loss reducing thermal damage and allowing faster wound healing. Our study compares thermal damage caused by Harmonic scalpel and CO2 laser to cadaveric tongue. Methods Two fresh human cadaver heads were enrolled for the study. Oral tongue was exposed and incisions were made in the tongue akin to a tongue tumor resection using the harmonic scalpel and flexible C02 laser fiber at various settings recommended for surgery. The margins of resection were sampled labeled and sent for pathological analysis to assess depth of thermal damage calculated in millimeters. The pathologist was blinded to the surgical tool used. Control tongue tissue was also sent for comparison as a baseline for comparison. Results Three tongue samples were studied to assess depth of thermal damage by harmonic scalpel. The mean depth of thermal damage was range - . Five tongue samples were studied to assess depth of thermal damage by CO2 laser. The mean depth of thermal damage was range to . As expected control samples showed 0 mm of thermal damage. There was a statistically significant difference between the depth of thermal injury to tongue resection margins by harmonic scalpel as compared to CO2 laser p . Conclusion In a cadaveric model flexible CO2 laser fiber causes less depth of thermal damage when compared with .