Erratum: Pilot randomised controlled trial of face-down posturing following phacovitrectomy for macular hole
| Autor: | Susan L. Walker, David Yorston, Muhammad Amer Awan, Catey Bunce, James W B Bainbridge, M A R Siddiqui |
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| Rok vydání: | 2012 |
| Předmět: |
Male
medicine.medical_specialty Visual acuity medicine.medical_treatment Visual Acuity Vitrectomy Pilot Projects law.invention Randomized controlled trial law Ophthalmology medicine Confidence Intervals Prone Position Humans Macular hole Aged Postoperative Care Fluorocarbons Phacoemulsification business.industry Middle Aged medicine.disease Retinal Perforations Clinical Study Optometry Female medicine.symptom Corrigendum business |
| Zdroj: | Europe PubMed Central |
| ISSN: | 1476-5454 0950-222X |
| DOI: | 10.1038/eye.2011.317 |
| Popis: | To gather information on the effect of postoperative face-down posturing following combined phacoemulsification and vitrectomy for macular hole surgery in order to assist in the design of a larger definitive study.Thirty phakic patients with stage II-IV full-thickness macular hole had combined phacoemulsification and pars plana vitrectomy with internal limiting membrane peel and 14% perfluoropropane (C(3)F(8)) gas. At the conclusion of surgery, patients were randomised either to face-down posture or to no posture, for 10 days. The primary outcome was macular hole closure.The macular hole was successfully closed in 93.8% of the face-down posture group and in all of the no-posture group. Mean visual improvement was 0.63 (SD=0.21) logMAR units in the face-down group and 0.53 (SD=0.22) in the no posture patients.Following combined phacoemulsification and vitrectomy, postoperative face-down posturing appears to make little difference to the final anatomical or visual outcome. If we assume a success rate of 95% in the posturing arm, and that there is no difference between posturing and non-posturing, then 798 patients would be required to be 90% sure that the 95% confidence interval will exclude a difference of more than 5%. |
| Databáze: | OpenAIRE |
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