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OpenTrials
Completed

NCT Number: NCT02860533

iPhone App Compared to Standard Riva-Rocci (RR)-Measurement During Stress Testing

The iPARR DELTA BP Study is designed to evaluate whether a new smartphone app using the photoplethysmography signal of the inbuilt camera can measure blood pressure (BP) fluctuations with sufficient correlation compared to the goldstandard oscillometric BP measurements. Investigators will recruit patients who are scheduled for a routine treadmill stress test and assess their blood pressure before and right after the test with the smartphone app and the standard BP measurements on the opposite upper extremity. Pronounced BP fluctuations are encountered during vigorous activities. The primary endpoint of the iPARR DELTA BP Study is the correlation of the absolute difference of subsequent measurements between both techniques. If the relative chances of BP fluctuations are sufficiently assessed with this new device, BP fluctuations could be monitored continuously after calibration.

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Key information

Conditions

Blood Pressure Cardiovascular Diseases Hypertension Vascular Diseases

Age range

18 year–99 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University Hospital Basel

Basel, Canton of Basel-City, 4031, Switzerland

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • able to give informed consent

Exclusion criteria

  • atrial fibrillation
  • medical reasons why blood pressure measurement is not possible at the upper extremity (Shunt, Lymphedema)

Treatment and study plan

cuff device

Device

Measurement of blood pressure during stress testing with cuff device

iphone

Device

Measurement of blood pressure during stress testing with iPhone

Primary outcomes

  1. Absolute difference between conventional blood pressure measurements and the corresponding iPhone blood pressure estimations

    Time frame: 1 day

    Difference between the delta of two sequential oscillometric measurements and the delta of the two corresponding blood pressure estimates calculated from the PPG signal of an iPhone 4S

Secondary outcomes

  1. Number of measurement failures

    Time frame: 1 day

    Number of measurements that cannot be analyzed due to bad signal quality of the Photoplethysmography (PPG) signal

Sponsors and collaborators

Lead sponsor

University Hospital, Basel, Switzerland

Other

Registry information

Official study title

iPhone App Compared to Standard RR-measurement During Stress Testing

Acronym: iPARRDeltaBP

Important dates

Study start
2016
Primary completion
2017
Study completion
2017
First posted
Aug 9, 2016
Registry last updated
May 7, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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