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Electrohydraulic Versus Laser Lithotripsy for Treatment of Difficult to Remove Biliary Stones (EHLvlaser)

This study has been completed.
Information provided by (Responsible Party):
Mansour Parsi, MD, The Cleveland Clinic Identifier:
First received: December 23, 2009
Last updated: March 28, 2017
Last verified: March 2017
Bile duct stones that can't be removed by conventional means can often be removed after fragmentation by shock waves (lithotripsy). The shock waves that are used for fragmentation of these stones are generated by electric sparks (electrohydraulic lithotripsy) or laser (laser lithotripsy). Although both techniques have been used for many years, there are no studies comparing the efficacy of the two. The purpose of this study is to find out which technique is more effective.

Condition Intervention
Gall Stones
Procedure: Laser Lithotripsy
Procedure: Electrohydraulic Lithotripsy

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: No masking
Primary Purpose: Treatment
Official Title: Electrohydraulic Versus Laser Lithotripsy for Treatment of Difficult to Remove Biliary Stones

Resource links provided by NLM:

Further study details as provided by The Cleveland Clinic:

Primary Outcome Measures:
  • Time [ Time Frame: Procudre duration ]
    Identify which technique takes less time to completion.

Secondary Outcome Measures:
  • Number of shocks [ Time Frame: Procedure duration ]
    Comparsion between procudures of the number of shocks to fragment stones

Enrollment: 25
Study Start Date: January 2010
Study Completion Date: March 2015
Primary Completion Date: March 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Electrohydraulic lithotripsy
Electrohydraulic lithotripsy: Lithotripsy will be performed using electrohydraulic method
Procedure: Electrohydraulic Lithotripsy
Electrohydraulic Lithotripsy
Experimental: Laser Lithotripsy
Laser Lithotripsy: Lithotripsy will be performed using laser method
Procedure: Laser Lithotripsy
Laser Lithotripsy
Other Name: Lithotripsy

Detailed Description:
Procedures will be considered standard of care; patients or insurance companies will be billed as it is standard of care.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 1 or more gall stones in bile duct which cannot be removed using conventional methods (must be fragmented)
  • Adults able to provide informed consent

Exclusion Criteria:

  • Pregnancy or lactation
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01571271

United States, Ohio
Cleveland Clinic
Cleveland, Ohio, United States, 44195
Sponsors and Collaborators
The Cleveland Clinic
Principal Investigator: Mansour A. Parsi, MD The Cleveland Clinic
  More Information

Responsible Party: Mansour Parsi, MD, MD, The Cleveland Clinic Identifier: NCT01571271     History of Changes
Obsolete Identifiers: NCT01039246
Other Study ID Numbers: 09-168
Study First Received: December 23, 2009
Last Updated: March 28, 2017
Individual Participant Data  
Plan to Share IPD: No

Keywords provided by The Cleveland Clinic:
gall stones
bile duct
Biliary stones

Additional relevant MeSH terms:
Pathological Conditions, Anatomical
Biliary Tract Diseases
Digestive System Diseases
Gallbladder Diseases processed this record on May 23, 2017