Prospective multicenter evaluation of a disposable lithotripter

D. Sorbi, E. Van Os, C. Gostout, F. Aberger, G. Derfus, R. Erickson, P. Meier, P. Nelson, M. Shaw

Research output: Contribution to journalArticle

Abstract

The Olympus lithotripter has become the standard reusable lithotripter in our participating institutions. Published data has noted a failure rate of 8% due to deployment, capture, and other technical problems. A new disposable device (Boston Scientific Corporation) with preassembled pistol grip handle function may facilitale operation. AIM: To prospectively evaluate the cost, technical performance, and procedure time of a disposable lithotripter. METHODS: 20 pts with common bile duct (CBD) stones were enrolled. Data included device costs, stone size, number of stones, CBD size and configuration (normal, sigmoid or stricture), ease and number of cannulations, basket function (deployment; deployed shape), stone capture and crushing success, procedure time, and complications. The Olympus device was used in failed cases. RESULTS: The disposable lithotripter cost $333 per procedure and the reusable device $625. Maximum stone size averaged 16.5±1.2 mm (range 10-30 mm). 16 pts had multiple stones (median 5, range 2-12). Mean CBD diameter was 20.5±1.5 mm (range 12-38mm). CBD cannulation was successful in all within 5 attempts. Basket deployment failed in 1 pt due to stone size and was misshapen in 14. Stone capture, fragmentation, and clearance were ultimately successful in 16 pts (80%). 2 pts required 2 disposable lithotripters. CBD clearance was incomplete with the lithotripsy basket in 2 pts. Abnormal CBD configuration was noted in 2 out of 4 pts with failed capture and 7 out of 16 with successful clearance. No statistically significant difference between the CBD size, stone size, number of stones, and successful clearance was observed. Average procedure time was 90.519.6 min (n=16) with the disposable lithotripter and 105.3±21.2 (n=4) with the reusable device. One patient developed a delayed sphincterotomy bleed and in one case there was damage to the endoscope elevator. CONCLUSIONS: 1. The success rate of stone capture and disruption with the disposable lithotripter (80%) was less than the published data with the Olympus device (96%). 2. Overall, the disposable device costs substantially less. 3. Basket deployment was less than ideal in most cases. 4. Failure of stone capture and disruption was often associated with abnormal CBD configuration. 5. Procedure times between the disposable and reusable lithotripter were comparable.

Original languageEnglish (US)
JournalGastrointestinal Endoscopy
Volume45
Issue number4
StatePublished - 1997
Externally publishedYes

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Common Bile Duct
Equipment and Supplies
Costs and Cost Analysis
Catheterization
Elevators and Escalators
Lithotripsy
Endoscopes
Hand Strength
Sigmoid Colon
Pathologic Constriction

ASJC Scopus subject areas

  • Gastroenterology

Cite this

Sorbi, D., Van Os, E., Gostout, C., Aberger, F., Derfus, G., Erickson, R., ... Shaw, M. (1997). Prospective multicenter evaluation of a disposable lithotripter. Gastrointestinal Endoscopy, 45(4).

Prospective multicenter evaluation of a disposable lithotripter. / Sorbi, D.; Van Os, E.; Gostout, C.; Aberger, F.; Derfus, G.; Erickson, R.; Meier, P.; Nelson, P.; Shaw, M.

In: Gastrointestinal Endoscopy, Vol. 45, No. 4, 1997.

Research output: Contribution to journalArticle

Sorbi, D, Van Os, E, Gostout, C, Aberger, F, Derfus, G, Erickson, R, Meier, P, Nelson, P & Shaw, M 1997, 'Prospective multicenter evaluation of a disposable lithotripter', Gastrointestinal Endoscopy, vol. 45, no. 4.
Sorbi D, Van Os E, Gostout C, Aberger F, Derfus G, Erickson R et al. Prospective multicenter evaluation of a disposable lithotripter. Gastrointestinal Endoscopy. 1997;45(4).
Sorbi, D. ; Van Os, E. ; Gostout, C. ; Aberger, F. ; Derfus, G. ; Erickson, R. ; Meier, P. ; Nelson, P. ; Shaw, M. / Prospective multicenter evaluation of a disposable lithotripter. In: Gastrointestinal Endoscopy. 1997 ; Vol. 45, No. 4.
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abstract = "The Olympus lithotripter has become the standard reusable lithotripter in our participating institutions. Published data has noted a failure rate of 8{\%} due to deployment, capture, and other technical problems. A new disposable device (Boston Scientific Corporation) with preassembled pistol grip handle function may facilitale operation. AIM: To prospectively evaluate the cost, technical performance, and procedure time of a disposable lithotripter. METHODS: 20 pts with common bile duct (CBD) stones were enrolled. Data included device costs, stone size, number of stones, CBD size and configuration (normal, sigmoid or stricture), ease and number of cannulations, basket function (deployment; deployed shape), stone capture and crushing success, procedure time, and complications. The Olympus device was used in failed cases. RESULTS: The disposable lithotripter cost $333 per procedure and the reusable device $625. Maximum stone size averaged 16.5±1.2 mm (range 10-30 mm). 16 pts had multiple stones (median 5, range 2-12). Mean CBD diameter was 20.5±1.5 mm (range 12-38mm). CBD cannulation was successful in all within 5 attempts. Basket deployment failed in 1 pt due to stone size and was misshapen in 14. Stone capture, fragmentation, and clearance were ultimately successful in 16 pts (80{\%}). 2 pts required 2 disposable lithotripters. CBD clearance was incomplete with the lithotripsy basket in 2 pts. Abnormal CBD configuration was noted in 2 out of 4 pts with failed capture and 7 out of 16 with successful clearance. No statistically significant difference between the CBD size, stone size, number of stones, and successful clearance was observed. Average procedure time was 90.519.6 min (n=16) with the disposable lithotripter and 105.3±21.2 (n=4) with the reusable device. One patient developed a delayed sphincterotomy bleed and in one case there was damage to the endoscope elevator. CONCLUSIONS: 1. The success rate of stone capture and disruption with the disposable lithotripter (80{\%}) was less than the published data with the Olympus device (96{\%}). 2. Overall, the disposable device costs substantially less. 3. Basket deployment was less than ideal in most cases. 4. Failure of stone capture and disruption was often associated with abnormal CBD configuration. 5. Procedure times between the disposable and reusable lithotripter were comparable.",
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AU - Sorbi, D.

AU - Van Os, E.

AU - Gostout, C.

AU - Aberger, F.

AU - Derfus, G.

AU - Erickson, R.

AU - Meier, P.

AU - Nelson, P.

AU - Shaw, M.

PY - 1997

Y1 - 1997

N2 - The Olympus lithotripter has become the standard reusable lithotripter in our participating institutions. Published data has noted a failure rate of 8% due to deployment, capture, and other technical problems. A new disposable device (Boston Scientific Corporation) with preassembled pistol grip handle function may facilitale operation. AIM: To prospectively evaluate the cost, technical performance, and procedure time of a disposable lithotripter. METHODS: 20 pts with common bile duct (CBD) stones were enrolled. Data included device costs, stone size, number of stones, CBD size and configuration (normal, sigmoid or stricture), ease and number of cannulations, basket function (deployment; deployed shape), stone capture and crushing success, procedure time, and complications. The Olympus device was used in failed cases. RESULTS: The disposable lithotripter cost $333 per procedure and the reusable device $625. Maximum stone size averaged 16.5±1.2 mm (range 10-30 mm). 16 pts had multiple stones (median 5, range 2-12). Mean CBD diameter was 20.5±1.5 mm (range 12-38mm). CBD cannulation was successful in all within 5 attempts. Basket deployment failed in 1 pt due to stone size and was misshapen in 14. Stone capture, fragmentation, and clearance were ultimately successful in 16 pts (80%). 2 pts required 2 disposable lithotripters. CBD clearance was incomplete with the lithotripsy basket in 2 pts. Abnormal CBD configuration was noted in 2 out of 4 pts with failed capture and 7 out of 16 with successful clearance. No statistically significant difference between the CBD size, stone size, number of stones, and successful clearance was observed. Average procedure time was 90.519.6 min (n=16) with the disposable lithotripter and 105.3±21.2 (n=4) with the reusable device. One patient developed a delayed sphincterotomy bleed and in one case there was damage to the endoscope elevator. CONCLUSIONS: 1. The success rate of stone capture and disruption with the disposable lithotripter (80%) was less than the published data with the Olympus device (96%). 2. Overall, the disposable device costs substantially less. 3. Basket deployment was less than ideal in most cases. 4. Failure of stone capture and disruption was often associated with abnormal CBD configuration. 5. Procedure times between the disposable and reusable lithotripter were comparable.

AB - The Olympus lithotripter has become the standard reusable lithotripter in our participating institutions. Published data has noted a failure rate of 8% due to deployment, capture, and other technical problems. A new disposable device (Boston Scientific Corporation) with preassembled pistol grip handle function may facilitale operation. AIM: To prospectively evaluate the cost, technical performance, and procedure time of a disposable lithotripter. METHODS: 20 pts with common bile duct (CBD) stones were enrolled. Data included device costs, stone size, number of stones, CBD size and configuration (normal, sigmoid or stricture), ease and number of cannulations, basket function (deployment; deployed shape), stone capture and crushing success, procedure time, and complications. The Olympus device was used in failed cases. RESULTS: The disposable lithotripter cost $333 per procedure and the reusable device $625. Maximum stone size averaged 16.5±1.2 mm (range 10-30 mm). 16 pts had multiple stones (median 5, range 2-12). Mean CBD diameter was 20.5±1.5 mm (range 12-38mm). CBD cannulation was successful in all within 5 attempts. Basket deployment failed in 1 pt due to stone size and was misshapen in 14. Stone capture, fragmentation, and clearance were ultimately successful in 16 pts (80%). 2 pts required 2 disposable lithotripters. CBD clearance was incomplete with the lithotripsy basket in 2 pts. Abnormal CBD configuration was noted in 2 out of 4 pts with failed capture and 7 out of 16 with successful clearance. No statistically significant difference between the CBD size, stone size, number of stones, and successful clearance was observed. Average procedure time was 90.519.6 min (n=16) with the disposable lithotripter and 105.3±21.2 (n=4) with the reusable device. One patient developed a delayed sphincterotomy bleed and in one case there was damage to the endoscope elevator. CONCLUSIONS: 1. The success rate of stone capture and disruption with the disposable lithotripter (80%) was less than the published data with the Olympus device (96%). 2. Overall, the disposable device costs substantially less. 3. Basket deployment was less than ideal in most cases. 4. Failure of stone capture and disruption was often associated with abnormal CBD configuration. 5. Procedure times between the disposable and reusable lithotripter were comparable.

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