CClinicalTrials.gg
CompletedNCT02805192Updated May 3, 2017

Validation of a Smart Phone App to Non-invasively Measure the Size of Children

An interventional study of Size Measurement by a Smart phone App in Growth and Development, sponsored by University of Zurich. Completed at 1 site in Switzerland. Open to participants aged Up to 12 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-05-03.

Sponsored by University of Zurich · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
627
Allocation
Not applicable
Ages
Up to 12 Years
Sex
All
01

Study summary

Smart phones are omnipresent. Apps exist to calculate size of medical equipment and doses of medication if a valid weight or age is entered. During emergency situations, these values are often unknown. An App has been developed to measure the size of a child noninvasively. This App is now to be validated in clinical practice. App measured size is calculated and compared to the real size of a child. Via known percentiles of age/weight of the child is calculated upon the App measured size. This value is compared to the mother's, physician's and nurses estimation of the size and weight.

Depending on the size multiple algorithms exist to estimate weight, age and medical values. ("Kindersicher ®", "Notfalllineal ®" and "Broselow Tape ®"). These estimations by the calculations will also be compared to actual weight and age.

Children from 0-12 years of age are included in the emergency Department of the Children's Hospital of the University of Zurich after informed consent obtained by the parents. No therapy decisions from these calculations will be made. The therapy is independent of this study.

02

Conditions studied

  • Growth and Development

Keywords

  • Emergency Department
  • Estimation of age and weight
  • Size measurement
03

In context

Lead sponsor

University of Zurich is the lead sponsor of 1,030 studies on the registry; 130 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 12 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • male and female patients 0-12 years of age (45 per age group)
  • obtained informed consent
  • admitted to the emergency department of the Children's Hospital of the University of Zurich

Exclusion criteria

Exclusion Criteria:

  • physically or mentally unable for measurement
  • denial of informed consent
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
627 participants (actual)

Study arms

  • Other
    one Arm: size measurement by Smart phone App

    Device: Size Measurement by a Smart phone App

Interventions

  • DeviceSize Measurement by a Smart phone App
06

What researchers measure

Primary outcomes

  1. Comparison of the size measured by the smart phone app with the child's size.

    Time frame: immediate, no follow up

Secondary outcomes

  1. Comparison of the estimations calculated upon the smart phone measured size (via known percentiles) with the real age and weight.

    Time frame: immediate, no follow up

  2. Comparison of estimations by "Kindersicher ®", "Notfalllineal ®" and "Broselow Tape ®" with real age and weight.

    Time frame: immediate, no follow up

  3. Comparison of estimations by parents, physicians and nurses with the actual size and weight.

    Time frame: immediate, no follow up

07

Study locations

1 site
  • Universtity Hospital Zurich
    Zurich, 8091, Switzerland
08

References and documents

Publications

  • Wetzel O, Schmidt AR, Seiler M, Scaramuzza D, Seifert B, Spahn DR, Stein P. A smartphone application to determine body length for body weight estimation in children: a prospective clinical trial. J Clin Monit Comput. 2018 Jun;32(3):571-578. doi: 10.1007/s10877-017-0041-z. Epub 2017 Jun 28. PubMed 28660564 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 3, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02805192
Lead sponsor
University of Zurich
Responsible party
Philipp Stein (Dr. med. Philipp Stein, University of Zurich) — Principal investigator
First posted
Jun 17, 2016
Start date
Jan 30, 2016
Primary completion
Jun 30, 2016
Completion
Jun 30, 2016
Last update
May 3, 2017

Study contacts

Donat R Spahn, M.D., F.R.C.A.
study chair · University and Universtity Hospital Zurich

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2017. You cannot join it, but the record below documents what was studied.

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