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Adjunct Inversion for Lower Pole Stone

A Prospective, Randomized, Double Blind, Controlled Study Comparing Extracorporeal Shock Wave Lithotripsy (ESWL) With and Without Simultaneous Adjunct Controlled Inversion Therapy in the Treatment of Lower Pole Caliceal Stone

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01852669
Enrollment
140
Registered
2013-05-14
Start date
2002-01-31
Completion date
2008-12-31
Last updated
2015-04-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kidney Stone

Brief summary

This is a randomized controlled trial comparing extracorporeal shockwave lithotripsy (ESWL) with and without simultaneous adjunct controlled inversion therapy in the treatment of lower pole caliceal stone.

Interventions

PROCEDUREInversion

Patients inverted 30 degree head down in Trendelenburg position

Shock wave lithotripsy

DRUGHydration

Hydration of patient with 0.5L NaCl and 20mg frusemide IV

Sponsors

Lam Wah Ee Hospital
CollaboratorOTHER
Monash University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Solitary lower pole caliceal stone which is \> 5 mm and \< 20mm 2. Not contraindicated for intravenous urogram (IVU) and subsequent X-rays 3. Patient able to comply strictly with visits/medications 4. Patient willing and agrees to enter study

Exclusion criteria

1. Impaired function of the affected kidney 2. Gross hydronephrosis of the affected kidney 3. Associated distal obstruction 4. Multiple stones 5. Stone more than 2 cm in size 6. Diverticular stone 7. Patients who are contraindicated for extracorporeal shockwave lithotripsy e.g.: Pregnancy 8. Patients who are unable to tolerate the procedure 9. Significant cardiac condition that does not allow the administration of force hydration or inversion. 10. Uncontrolled hypertension

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Who Are Stone Free at 3 Months3 monthsTo compare the effectiveness of simultaneous adjunct controlled inversion therapy during extracorporeal shockwave lithotripsy (ESWL) to that of ESWL alone in the treatment of lower pole caliceal stone as measured by stone-free rate(SFR)

Participant flow

Participants by arm

ArmCount
Inversion, Hydration, ESWL
ESWL with hydration and inversion Inversion: Patients inverted 30 degree head down in Trendelenburg position Shock Wave Lithotripsy: Shock wave lithotripsy Hydration: Hydration of patient with 0.5L NaCl and 20mg frusemide IV
71
ESWL, Hydration
ESWL with hydration Shock Wave Lithotripsy: Shock wave lithotripsy Hydration: Hydration of patient with 0.5L NaCl and 20mg frusemide IV
68
Total139

Baseline characteristics

CharacteristicInversion, Hydration, ESWLESWL, HydrationTotal
Age, Continuous48.3 years
STANDARD_DEVIATION 11.1
50.9 years
STANDARD_DEVIATION 12.9
49.63 years
STANDARD_DEVIATION 12
Sex: Female, Male
Female
20 Participants21 Participants41 Participants
Sex: Female, Male
Male
51 Participants47 Participants98 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
1 / 712 / 68
serious
Total, serious adverse events
0 / 710 / 68

Outcome results

Primary

Number of Participants Who Are Stone Free at 3 Months

To compare the effectiveness of simultaneous adjunct controlled inversion therapy during extracorporeal shockwave lithotripsy (ESWL) to that of ESWL alone in the treatment of lower pole caliceal stone as measured by stone-free rate(SFR)

Time frame: 3 months

ArmMeasureValue (NUMBER)
Inversion, Hydration, ESWLNumber of Participants Who Are Stone Free at 3 Months54 participants
ESWL, HydrationNumber of Participants Who Are Stone Free at 3 Months49 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026