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Efficacy of low-intensity laser on the healing process after surgery for laparotomy.

Grant number: 10/02709-9
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): July 01, 2010
Effective date (End): December 31, 2010
Field of knowledge:Health Sciences - Physiotherapy and Occupational Therapy
Principal Investigator:Celso Ricardo Fernandes de Carvalho
Grantee:Juliana Costa Sperandéo
Home Institution: Faculdade de Medicina (FM). Universidade de São Paulo (USP). São Paulo , SP, Brazil


A laparotomy is a surgical procedure that gives access to the abdominal viscera through the wall peritoneum-aponeurotic-abdominal muscle and may have various forms of incision, with sizes of exposed area varied. After the surgery begins the healing phase of post-surgical wound, which does not occur properly can lead to dehiscence of the abdominal wall, and even cause some sort of infection because of the poor healing. One technique that can speed up this process of tissue repair, or healing, and still act in the modulation of pain is the laser, which is a therapeutic technique that involves the application of low-power laser at the wound site. This technique promotes healing by acting on the activation of some cells of tissue repair, such as fibroblasts. Objective: To evaluate the therapeutic efficiency of low-intensity laser in the acceleration of healing of scars postoperative laparotomy. Methodology: will be included in the study 20 patients in the Service of Digestive Tract Surgery and Coloproctology of 2 Division of Surgical Clinic of HC-FMUSP. These patients will be randomly divided into two groups: laser and control. The parameters of the application in the laser group consisting of laser diode with a wavelength of 830 nm, 40 mW output power, 0.08 cm ² diameter of the tip of issue, 26 seconds, 1.04 J of energy per point and streaming 13J / cm ², and the control group will receive placebo laser.