Eye (London, England) · 2009
Rapid suture management of post-keratoplasty astigmatism.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Sarhan A R S, Fares U, Al-Aqaba M A, Miri A, Otri A M, Said D G, Dua H S
Аннотация
AIM: Post-keratoplasty astigmatism is managed by topography-guided suture removal. This can take several weeks until satisfactory reduction in astigmatism is achieved. This study aimed to assess whether topography performed 30-40 min after the removal of the first pair of sutures would predict the next set of sutures requiring removal.
METHODS: A prospective study of 20 consecutive penetrating keratoplasty patients was carried out. Topography guided suture removal in the steep meridian was carried out. Topography was repeated after 30-40 min and 4-6 weeks later. The tight sutures requiring removal were identified for each occasion and compared. The difference was considered insignificant if the axes of sutures requiring removal was <22.5 degrees. Paired t-test and chi (2) were performed for statistical analysis.
RESULTS: In 85% of individuals, the 30-40 min topography gave an accurate indication of the next pair of sutures requiring removal. The difference in mean astigmatism at 30-40 min post suture removal (4.37+/-2.08 D) and at 4-6 weeks (4.24+1.97 D) was not significant (P=0.150). However, the difference between vector-corrected change of topographic astigmatism at 30-40 min after suture removal and at 4-6 weeks (1.72 D) was significant (P<0.001). Improved best-corrected visual acuity was seen in 50% of patients.
CONCLUSION: This study showed that corneal topography performed 30-40 min after suture removal can identify the next set of sutures requiring removal. This can be used as a guide to remove more sutures at the same visit, thereby expediting post-keratoplasty visual rehabilitation and reducing the number of follow-up visits.
METHODS: A prospective study of 20 consecutive penetrating keratoplasty patients was carried out. Topography guided suture removal in the steep meridian was carried out. Topography was repeated after 30-40 min and 4-6 weeks later. The tight sutures requiring removal were identified for each occasion and compared. The difference was considered insignificant if the axes of sutures requiring removal was <22.5 degrees. Paired t-test and chi (2) were performed for statistical analysis.
RESULTS: In 85% of individuals, the 30-40 min topography gave an accurate indication of the next pair of sutures requiring removal. The difference in mean astigmatism at 30-40 min post suture removal (4.37+/-2.08 D) and at 4-6 weeks (4.24+1.97 D) was not significant (P=0.150). However, the difference between vector-corrected change of topographic astigmatism at 30-40 min after suture removal and at 4-6 weeks (1.72 D) was significant (P<0.001). Improved best-corrected visual acuity was seen in 50% of patients.
CONCLUSION: This study showed that corneal topography performed 30-40 min after suture removal can identify the next set of sutures requiring removal. This can be used as a guide to remove more sutures at the same visit, thereby expediting post-keratoplasty visual rehabilitation and reducing the number of follow-up visits.