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CASE REPORTS
JOURNAL ARTICLE
Surgical Technique for Pulled in Two Syndrome: Three Cases With Chronic Progressive External Ophthalmoplegia.
Journal of Pediatric Ophthalmology and Strabismus 2017 November 18
The authors describe three examples of "pulled in two syndrome" (PITS) from a series of 13 patients undergoing strabismus surgery with underlying chronic progressive external ophthalmoplegia (CPEO) and illustrate techniques for recovery of the "pulled in two" extraocular muscle should the complication arise. In all cases, a rectus muscle snapped under minimal tension while held on a strabismus hook during strabismus surgery. Two patients suffered from CPEO as a result of genetic mitochondrial disease, whereas one resulted from presumed mitochondrial toxicity induced by HAART. In cases 1 and 3, the proximal medial rectus segment was retrieved and reattached. In case 2, the fragmented superior rectus muscle was too friable to be reattached. All three patients were satisfied with the outcome, having reduced their angles of misalignment postoperatively. All three had improved cosmesis, and the two who had complained of diplopia preoperatively found their diplopia to be eliminated or improved. With anticipation of muscle friability in patients with previous extraocular surgery or degenerative muscle changes such as CPEO, the likelihood of the complication arising may be reduced. Should it occur, the loss of a snapped rectus muscle may be avoided through careful manipulation of the globe. [J Pediatr Ophthalmol Strabismus. 2017;54:e83-e87.].
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