Fluid Intake Application to Reduce Kidney Stone Risks

NCT ID: NCT01928108

Last Updated: 2017-03-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

10 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-07-31

Study Completion Date

2017-03-16

Brief Summary

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The purpose of this investigation is to prospectively evaluate the benefit of different methods of educating patients regarding their fluid intake through a readily available daily cellular phone application to improve overall urine output and reduce risk factors for stone recurrence.

Detailed Description

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The prevalence of kidney stone disease in the United States is increasing. Recurrence of kidney stone disease has been reported as high as 50% at five years. Urine supersaturation is a predominant factor in the formation of crystallization and stone disease and is dependent on fluid volume. High fluid consumption that dilutes the urine has been shown both in vitro and in clinical studies to reduce the tendency for stone crystallization as well as effectively decrease stone recurrence. As a result, water intake greater than two liters per day is a common initial therapy for prevention of stone disease. However, studies have shown that despite physician counseling most patients are only able to modestly increase their urine volume through fluid intake. This finding may be due to a discrepancy in patient perception of their actual fluid intake and resulting urine volume. The purpose of this investigation is to prospectively evaluate the benefit of different methods of educating patient regarding their fluid intake through a readily available daily cellular phone application to improve overall urine output and reduce risk factors for stone recurrence.

Conditions

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Kidney Stone

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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iPhone Application

Participants using an iPhone will download the "waterlogged" application and use this to track daily water intake for 1 week.

iPhone Application

Intervention Type BEHAVIORAL

The iPhone application "waterlogged" will be used by participants using and iPhone cellular device. This application will be used to track daily fluid intake for 1 week.

Android Application

Participants using an Android cell phone will download the "water your body" application and use this to track daily water intake for 1 week.

Android Application

Intervention Type BEHAVIORAL

The Android application "water my body" will be used by participants using an Android cellular device. This application will be used to track daily fluid intake for 1 week.

Interventions

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iPhone Application

The iPhone application "waterlogged" will be used by participants using and iPhone cellular device. This application will be used to track daily fluid intake for 1 week.

Intervention Type BEHAVIORAL

Android Application

The Android application "water my body" will be used by participants using an Android cellular device. This application will be used to track daily fluid intake for 1 week.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

1. Patients ≥ 18 years old
2. Seen in urology or nephrology clinic at UNC with a diagnosis of kidney stone
3. Prior 24-hour urine result with volume less than 2 to 2.5 liters

Exclusion Criteria

1. Patient without cellular phone capable of utilizing Android / Apple application
2. Patient already using some form of monitoring fluid intake / volume
3. Inability to take fluid by mouth
4. Patient with urinary diversion, chronic diarrhea, bowel diversion or other forms of excessive fluid loss
5. Inability to obtain informed consent
6. Non-English speaking
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of North Carolina, Chapel Hill

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Davis Viprakasit, MD

Role: PRINCIPAL_INVESTIGATOR

University of North Carolina, Chapel Hill

Locations

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North Carolina Memorial Hospital

Chapel Hill, North Carolina, United States

Site Status

Countries

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United States

References

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Scales CD Jr, Smith AC, Hanley JM, Saigal CS; Urologic Diseases in America Project. Prevalence of kidney stones in the United States. Eur Urol. 2012 Jul;62(1):160-5. doi: 10.1016/j.eururo.2012.03.052. Epub 2012 Mar 31.

Reference Type BACKGROUND
PMID: 22498635 (View on PubMed)

Preminger GM. Renal calculi: pathogenesis, diagnosis, and medical therapy. Semin Nephrol. 1992 Mar;12(2):200-16.

Reference Type BACKGROUND
PMID: 1561497 (View on PubMed)

Pak CY, Sakhaee K, Crowther C, Brinkley L. Evidence justifying a high fluid intake in treatment of nephrolithiasis. Ann Intern Med. 1980 Jul;93(1):36-9. doi: 10.7326/0003-4819-93-1-36.

Reference Type BACKGROUND
PMID: 7396311 (View on PubMed)

Borghi L, Meschi T, Amato F, Briganti A, Novarini A, Giannini A. Urinary volume, water and recurrences in idiopathic calcium nephrolithiasis: a 5-year randomized prospective study. J Urol. 1996 Mar;155(3):839-43.

Reference Type BACKGROUND
PMID: 8583588 (View on PubMed)

Parks JH, Goldfischer ER, Coe FL. Changes in urine volume accomplished by physicians treating nephrolithiasis. J Urol. 2003 Mar;169(3):863-6. doi: 10.1097/01.ju.0000044922.22478.32.

Reference Type BACKGROUND
PMID: 12576800 (View on PubMed)

Other Identifiers

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13-2453

Identifier Type: -

Identifier Source: org_study_id

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