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Study on 'The Use of Non-contrast Helical Computerized Tomogram in Predicting Treatment Outcomes of Upper Ureteric Stone by Extracorporeal Shock Wave Lithotripsy Using the Sonolith 4000+ Lithotripter'

This study has been completed.
Information provided by:
Hospital Authority, Hong Kong Identifier:
First received: August 15, 2007
Last updated: June 14, 2011
Last verified: June 2011
The purpose of this research is to assess the role of non-contrast helical computerized tomogram in predicting the treatment outcome of upper ureteric stone by extracorporeal shock wave lithotripsy (ESWL).

Condition Intervention
Ureteral Calculi
Procedure: Non-contrast helical computerized tomogram (NCHCT)

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: The Use of Non-contrast Helical Computerized Tomogram in Predicting Treatment Outcome of Upper Ureteric Stone by Extracorporeal Shock Wave Lithotripsy Using the Sonolith 4000+ Lithotripter

Resource links provided by NLM:

Further study details as provided by Hospital Authority, Hong Kong:

Estimated Enrollment: 100
Study Start Date: October 2004
Study Completion Date: December 2007

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Sampling Method:   Non-Probability Sample
Study Population
Patient suffered upper ureteric stone

Inclusion Criteria:

  • Adult patient (> 18 years old)
  • With solitary upper ureteric stone (defined as ureter above the sacroiliac joint as seen on plain radiography) diagnosed by NCHCT *(* can have stones at the other site but the indexed stone is a solitary stone)
  • Size 5 to 15 mm in the maximal diameter as measured from plain radiography.
  • Planned for primary in-situ ESWL

Exclusion Criteria:

  • Patient contraindicated for ESWL - active urosepsis, coagulopathy, pregnant lady etc
  • Presence of percutaneous nephrostomy or ureteric stent
  • Suspected distal obstruction
  Contacts and Locations
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Please refer to this study by its identifier: NCT00517205

Prince of Wales Hospital
Hong Kong, China
Sponsors and Collaborators
Hospital Authority, Hong Kong
Principal Investigator: Chi Fai Ng, Dr Department of Surgery, Division of Urology, The Chinese University of Hong Kong
  More Information

Additional Information: Identifier: NCT00517205     History of Changes
Other Study ID Numbers: CRE-2004.309
Study First Received: August 15, 2007
Last Updated: June 14, 2011

Keywords provided by Hospital Authority, Hong Kong:
upper ureteric stone

Additional relevant MeSH terms:
Ureteral Calculi
Pathological Conditions, Anatomical
Ureteral Diseases
Urologic Diseases
Urinary Calculi processed this record on May 22, 2017