Abstract
Background EUS is an operator-dependent procedure and requires more technical and cognitive skills than a routine endoscopic procedure. The learning curve for the staging of gastric cancer, however, has not been evaluated. Objective To evaluate the threshold number of EUS examinations for gastric cancer T staging. Design Retrospective study. Setting University-affiliated tertiary care hospital in the Republic of Korea. Patients Four trainees with no previous EUS experience. Intervention Analyzing performance of EUS trainees in gastric cancer T staging by using cumulative sum (CUSUM) analysis. Main Outcome Measurements CUSUM plot and a minimal number of procedures for reaching a plateau. Results A total of 553 initial EUS examinations for treatment-naïve gastric cancers, performed by trainees, were enrolled in the study. The final T stage was determined by experts by using EUS in 332 gastric cancer cases, whereas the T stage of the other 221 lesions was determined by trainees by using EUS. The accuracy of EUS examinations performed by trainees and experts was 72.6% and 84.3%, respectively. The number of EUS examinations required to reach the first plateau in each trainee was 20, 41, 60, and 65. Limitations Retrospective study with a relatively small number of trainees. Conclusion The CUSUM scores of all of 4 trainees in the study reached a plateau by the 65th examination.
| Original language | English |
|---|---|
| Pages (from-to) | 898-905.e1 |
| Journal | Gastrointestinal Endoscopy |
| Volume | 81 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2015 Apr 1 |
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All Science Journal Classification (ASJC) codes
- Radiology Nuclear Medicine and imaging
- Gastroenterology
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Learning curve for EUS in gastric cancer T staging by using cumulative sum analysis. / Park, Chan Hyuk; Park, Jun Chul; Kim, Eun Hye; Jung, Da Hyun; Chung, Hyunsoo; Shin, Sung Kwan; Lee, SangKil; Lee, Yongchan.
In: Gastrointestinal Endoscopy, Vol. 81, No. 4, 01.04.2015, p. 898-905.e1.Research output: Contribution to journal › Article
TY - JOUR
T1 - Learning curve for EUS in gastric cancer T staging by using cumulative sum analysis
AU - Park, Chan Hyuk
AU - Park, Jun Chul
AU - Kim, Eun Hye
AU - Jung, Da Hyun
AU - Chung, Hyunsoo
AU - Shin, Sung Kwan
AU - Lee, SangKil
AU - Lee, Yongchan
PY - 2015/4/1
Y1 - 2015/4/1
N2 - Background EUS is an operator-dependent procedure and requires more technical and cognitive skills than a routine endoscopic procedure. The learning curve for the staging of gastric cancer, however, has not been evaluated. Objective To evaluate the threshold number of EUS examinations for gastric cancer T staging. Design Retrospective study. Setting University-affiliated tertiary care hospital in the Republic of Korea. Patients Four trainees with no previous EUS experience. Intervention Analyzing performance of EUS trainees in gastric cancer T staging by using cumulative sum (CUSUM) analysis. Main Outcome Measurements CUSUM plot and a minimal number of procedures for reaching a plateau. Results A total of 553 initial EUS examinations for treatment-naïve gastric cancers, performed by trainees, were enrolled in the study. The final T stage was determined by experts by using EUS in 332 gastric cancer cases, whereas the T stage of the other 221 lesions was determined by trainees by using EUS. The accuracy of EUS examinations performed by trainees and experts was 72.6% and 84.3%, respectively. The number of EUS examinations required to reach the first plateau in each trainee was 20, 41, 60, and 65. Limitations Retrospective study with a relatively small number of trainees. Conclusion The CUSUM scores of all of 4 trainees in the study reached a plateau by the 65th examination.
AB - Background EUS is an operator-dependent procedure and requires more technical and cognitive skills than a routine endoscopic procedure. The learning curve for the staging of gastric cancer, however, has not been evaluated. Objective To evaluate the threshold number of EUS examinations for gastric cancer T staging. Design Retrospective study. Setting University-affiliated tertiary care hospital in the Republic of Korea. Patients Four trainees with no previous EUS experience. Intervention Analyzing performance of EUS trainees in gastric cancer T staging by using cumulative sum (CUSUM) analysis. Main Outcome Measurements CUSUM plot and a minimal number of procedures for reaching a plateau. Results A total of 553 initial EUS examinations for treatment-naïve gastric cancers, performed by trainees, were enrolled in the study. The final T stage was determined by experts by using EUS in 332 gastric cancer cases, whereas the T stage of the other 221 lesions was determined by trainees by using EUS. The accuracy of EUS examinations performed by trainees and experts was 72.6% and 84.3%, respectively. The number of EUS examinations required to reach the first plateau in each trainee was 20, 41, 60, and 65. Limitations Retrospective study with a relatively small number of trainees. Conclusion The CUSUM scores of all of 4 trainees in the study reached a plateau by the 65th examination.
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U2 - 10.1016/j.gie.2014.08.024
DO - 10.1016/j.gie.2014.08.024
M3 - Article
VL - 81
SP - 898-905.e1
JO - Gastrointestinal Endoscopy
JF - Gastrointestinal Endoscopy
SN - 0016-5107
IS - 4
ER -