Application of red pulsed laser therapeutic radiation for healing the larynx bilateral paralysis after stringectomy

Abstract

18 women with bilateral paralysis of the larynx were taken into the study. 14 of them were tracheotomized, 4 - not. All the patients were divided into two groups. In the first group 9 patients had chordaritinoidotomy with Coblator apparatus. In the second group 9 patients had the same surgery with microsurgical tools. After the surgery, all patients had anti-inflammatory therapy; 5 patients in each group had additional laser therapy at the projection of larynx cartilage with laser device «Mustang 2 000». On days 3 and 10 after the surgery, patients were examined with Doppler flowmetry considering the variation coefficient (Kv). On the third day, 4 patients in each group who were no treated with laser therapy had Kv equal to 9 units, while in 10 patients who had laser therapy it was 13 units. On day 10, Kv in the first group was 26 units; in the second - 32 units. In both groups 4 months later the researchers registered complications: cicatricial stenosis of the subfold area and vocal cords, a polyp in the vocal folds. On the opposite, 10 patients from the laser-treated group had no any complications. It has been found out that laser therapy is an important factor for the activation of regenerative processes in the postoperative area.