Méndez STJ, Soto MMI, Pons CL, Naranjo FRM, Casanueva CH, López FD

Language: Spanish
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ABSTRACT

Objective: to compare the motor and sensory results of patients with residual esotropia, who were treated with botulinum toxin A, and of a group undergoing conventional surgery.
Methods: a prospective, longitudinal and experimental (analytical) study was conducted in 27 patients who fulfilled the inclusion criteria: residual esotropia from 20 to 30 dioptries independently of the age. The following variables were analyzed: age, sex, previous diagnosis, type of previous surgery, number of injection of botulinum toxin A applied or type of surgery performed in the reintervención, secondary effects, complications, deviation angle, coalition and preoperative and postoperative estereopsis to the year. It was considered surgical success the deviation same posttreatment or smaller than 10 prismatic dioptries.
Results: the angle of preoperative deviation average of the group toxin botulínica A was of 24,0 ± 1,2 dioptres and the one of conventional surgery of 25,8 ± 1,1, in opposition with the angle of posoperative deviation average, where find significant differences ( p= 0,003) between both groups (10,3 ± 1,1 versus 6,0 ± 0,80). The 64,3 % of the group of toxin botulínica A and the 92,3 % of conventional surgery obtained surgical success. Significant differences were not find (p= 0,165). Palpebral ptosis was found as secondary effect in the group toxin botulínica A, and any complication in any group. The 44,4 % of the patients obtained post-treatment fusion but any reached to estereopsis.
Conclusions: the residual esotropias of 20 to 30 prismatic dioptres treated with toxin botulínica shows resulted engines and sensory similar to the group of conventional surgery.