Abstract | PURPOSE: METHODS: We studied the results of BTA bilateral injection in eight consecutive patients with DRS type 1 and esotropia in primary gaze. Average follow-up was 74 ± 71 months. The main variables analyzed were horizontal and vertical deviation and face turn. Patients were anesthetized with nitrous oxide (N2O). A mean dosage of 5.6 ± 1.8 IU (range 2.5-7.5 IU) of botulinum toxin diluted in 0.9% saline solution was injected under electromyography control in each medial rectus muscle. RESULTS: Seven patients had one affected eye and one patient had bilateral involvement. The mean preoperative esotropia was 32 ± 10 prism diopters (PD). Three patients (37.5%) had also a vertical deviation. All patients had face turn ranging between 15° and 45° before BTA injection. In the last follow-up, 4 patients were orthotropic (50%), 1 (12.5%) had 3 PD exotropia and 3 (37.5%) had esotropia averaging 25 PD mean. The 3 esotropic patients needed surgical correction. Vertical strabismus improved in 3 patients achieving complete resolution in one of these patients. Two patients, without vertical strabismus before the BTA injection, developed a 5-PD vertical deviation, one of them required surgery. Face turn improved in all patients. CONCLUSION:
Botulinum toxin injection is an alternative treatment for patients with DRS type 1 presents esotropia and face turn in children up to 3 years of age.
|
Authors | Jesús Fraile Maya, Rosario Gómez de Liaño, María Rocio García Catalán, Omar Rayward |
Journal | Strabismus
(Strabismus)
Vol. 21
Issue 1
Pg. 4-7
(Mar 2013)
ISSN: 1744-5132 [Electronic] England |
PMID | 23477770
(Publication Type: Comparative Study, Journal Article)
|
Chemical References |
- Neuromuscular Agents
- Botulinum Toxins, Type A
|
Topics |
- Botulinum Toxins, Type A
(administration & dosage)
- Child, Preschool
- Duane Retraction Syndrome
(complications, drug therapy, physiopathology)
- Electromyography
- Esotropia
(complications, drug therapy, physiopathology)
- Eye Movements
(drug effects)
- Female
- Follow-Up Studies
- Humans
- Infant
- Injections, Intramuscular
- Male
- Neuromuscular Agents
(administration & dosage)
- Oculomotor Muscles
(drug effects, physiopathology)
- Retrospective Studies
- Time Factors
- Treatment Outcome
|