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
Genders Eligible for Study:   Both
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
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: 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  HARECCTR0500008 
Study First Received: August 15, 2007
Last Updated: June 14, 2011
Health Authority: Hong Kong: Ethics Committee

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

Additional relevant MeSH terms:
Ureteral Calculi
Pathological Conditions, Anatomical
Ureteral Diseases
Urinary Calculi
Urologic Diseases processed this record on April 27, 2016