Early stage impacts of tonsillectomy on immune functions of children

Objective: The purpose of this study was to investigate the changes in the humoral. and cellular immunity of patients with chronic tonsillitis before and 1 month after tonsillectomy. Patients and methods: 37 patients scheduled for tonsillectomy were enrolled in this study. The levels of CD3(+), CD4(+), CD8(+), CD19(+), CD25(+) and CD16(+)+56(+) were measured for cellutar immunity, and levels of IgG, IgA, IgM, C3 and C4 were measured for humoral immunity in blood samples taken from these patients before and 1 month after the operation. Results: The levels of CD3(+), CD8(+) and CD19(+) were reduced in post-operative period as compared to pre-operative period but this was not statistically significant (P > 0.05). However it was found that the level of CD4(+) was significantly increased while the level of CD25was reduced (P < 0.05) in the post-operative period. There were statistically significant differences between pre- and post-operative levels of immunoglobulins, C3 and C4, which were decreased after tonsillectomy (P < 0.05), but these levels were comparable with those of the control group. Conclusion: The results from the present study indicate that humoral. and cellular immunity of patients undergoing tonsillectomy were decreased in the early period and came to normal later. The celluar and humoral immune responses are stimulated in patients with tonsillitis, and tonsillectomy removes this stimulus without negatively affecting the patient's immune functions. (C) 2003 Elsevier Ireland Ltd. All rights reserved.