Cumulative sum analysis score and phacoemulsification competency learning curve
AIM: To use the cumulative sum analysis score (CUSUM) to construct objectively the learning curve of phacoemulsification competency. METHODS: Three second-year residents and an experienced consultant were monitored for a series of 70 phacoemulsification cases each and had their series analysed by C...
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doaj-8a5b02cbba8f4598a44e7a2402fb99002020-11-25T01:52:03ZengPress of International Journal of Ophthalmology (IJO PRESS)International Journal of Ophthalmology2222-39592227-48982017-07-011071088109310.18240/ijo.2017.07.11Cumulative sum analysis score and phacoemulsification competency learning curveGustavo Vedana0Filipe G. Cardoso1Alexandre S. Marcon2Licio E. K. Araújo3Matheus Zanon4Daniella C. Birriel5Guilherme Watte6Albert S. Jun7Wilmer Eye Institute, Johns Hopkins Medical Institutions, Baltimore 21287, USA; Irmandade Santa Casa, Misericórdia, Porto Alegre 90020160, BrazilIrmandade Santa Casa, Misericórdia, Porto Alegre 90020160, BrazilIrmandade Santa Casa, Misericórdia, Porto Alegre 90020160, BrazilIrmandade Santa Casa, Misericórdia, Porto Alegre 90020160, BrazilIrmandade Santa Casa, Misericórdia, Porto Alegre 90020160, BrazilIrmandade Santa Casa, Misericórdia, Porto Alegre 90020160, BrazilFederal University of Rio Grande do Sul, Porto Alegre 90035003, BrazilWilmer Eye Institute, Johns Hopkins Medical Institutions, Baltimore 21287, USAAIM: To use the cumulative sum analysis score (CUSUM) to construct objectively the learning curve of phacoemulsification competency. METHODS: Three second-year residents and an experienced consultant were monitored for a series of 70 phacoemulsification cases each and had their series analysed by CUSUM regarding posterior capsule rupture (PCR) and best-corrected visual acuity. The acceptable rate for PCR was <5% (lower limit h) and the unacceptable rate was >10% (upper limit h). The acceptable rate for best-corrected visual acuity worse than 20/40 was <10% (lower limit h) and the unacceptable rate was >20% (upper limit h). The area between lower limit h and upper limit h is called the decision interval. RESULTS: There was no statistically significant difference in the mean age, sex or cataract grades between groups. The first trainee achieved PCR CUSUM competency at his 22nd case. His best-corrected visual acuity CUSUM was in the decision interval from his third case and stayed there until the end, never reaching competency. The second trainee achieved PCR CUSUM competency at his 39th case. He could reach best-corrected visual acuity CUSUM competency at his 22nd case. The third trainee achieved PCR CUSUM competency at his 41st case. He reached best-corrected visual acuity CUSUM competency at his 14th case. CONCLUSION: The learning curve of competency in phacoemulsification is constructed by CUSUM and in average took 38 cases for each trainee to achieve it.http://www.ijo.cn/en_publish/2017/7/20170711.pdf1093phacoemulsification learning curvecumulative sum analysisscoreposterior capsule rupturebest corrected visual acuitycataract surgery |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gustavo Vedana Filipe G. Cardoso Alexandre S. Marcon Licio E. K. Araújo Matheus Zanon Daniella C. Birriel Guilherme Watte Albert S. Jun |
spellingShingle |
Gustavo Vedana Filipe G. Cardoso Alexandre S. Marcon Licio E. K. Araújo Matheus Zanon Daniella C. Birriel Guilherme Watte Albert S. Jun Cumulative sum analysis score and phacoemulsification competency learning curve International Journal of Ophthalmology 1093 phacoemulsification learning curve cumulative sum analysis score posterior capsule rupture best corrected visual acuity cataract surgery |
author_facet |
Gustavo Vedana Filipe G. Cardoso Alexandre S. Marcon Licio E. K. Araújo Matheus Zanon Daniella C. Birriel Guilherme Watte Albert S. Jun |
author_sort |
Gustavo Vedana |
title |
Cumulative sum analysis score and phacoemulsification competency learning curve |
title_short |
Cumulative sum analysis score and phacoemulsification competency learning curve |
title_full |
Cumulative sum analysis score and phacoemulsification competency learning curve |
title_fullStr |
Cumulative sum analysis score and phacoemulsification competency learning curve |
title_full_unstemmed |
Cumulative sum analysis score and phacoemulsification competency learning curve |
title_sort |
cumulative sum analysis score and phacoemulsification competency learning curve |
publisher |
Press of International Journal of Ophthalmology (IJO PRESS) |
series |
International Journal of Ophthalmology |
issn |
2222-3959 2227-4898 |
publishDate |
2017-07-01 |
description |
AIM: To use the cumulative sum analysis score (CUSUM) to construct objectively the learning curve of phacoemulsification competency.
METHODS: Three second-year residents and an experienced consultant were monitored for a series of 70 phacoemulsification cases each and had their series analysed by CUSUM regarding posterior capsule rupture (PCR) and best-corrected visual acuity. The acceptable rate for PCR was <5% (lower limit h) and the unacceptable rate was >10% (upper limit h). The acceptable rate for best-corrected visual acuity worse than 20/40 was <10% (lower limit h) and the unacceptable rate was >20% (upper limit h). The area between lower limit h and upper limit h is called the decision interval.
RESULTS: There was no statistically significant difference in the mean age, sex or cataract grades between groups. The first trainee achieved PCR CUSUM competency at his 22nd case. His best-corrected visual acuity CUSUM was in the decision interval from his third case and stayed there until the end, never reaching competency. The second trainee achieved PCR CUSUM competency at his 39th case. He could reach best-corrected visual acuity CUSUM competency at his 22nd case. The third trainee achieved PCR CUSUM competency at his 41st case. He reached best-corrected visual acuity CUSUM competency at his 14th case.
CONCLUSION: The learning curve of competency in phacoemulsification is constructed by CUSUM and in average took 38 cases for each trainee to achieve it. |
topic |
1093 phacoemulsification learning curve cumulative sum analysis score posterior capsule rupture best corrected visual acuity cataract surgery |
url |
http://www.ijo.cn/en_publish/2017/7/20170711.pdf |
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