Status:

COMPLETED

Validation of Respiration Rate Algorithms

Lead Sponsor:

Guy's and St Thomas' NHS Foundation Trust

Collaborating Sponsors:

Engineering and Physical Sciences Research Council, UK

University of Oxford

Conditions:

Respiratory Rate

Pulse Oximetry

Eligibility:

All Genders

18+ years

Brief Summary

Continuous accurate unobtrusive respiratory rate monitoring may lead to improved patient outcomes, as respiratory rate is thought to be a sensitive marker of patient deterioration. Currently systems a...

Eligibility Criteria

Inclusion

  • Young Healthy Volunteers
  • Participant is willing and able to give informed consent for participation in the study.
  • Male or Female, aged between 18 and 40 years old.
  • Older Healthy Volunteers
  • Participant is willing and able to give informed consent for participation in the study.
  • Male or Female, aged 70 years or above.
  • Patients
  • Participant is willing and able to give informed consent for participation in the study.
  • Male or Female, aged 18-70 years old.
  • Participant has one of the following conditions:
  • Atrial fibrillation
  • A permanent pacemaker that is continuously active
  • Reduced chest wall movement

Exclusion

  • Young Healthy Volunteers
  • Any condition which might increase the risk of exercise testing
  • Any history of ischaemic heart disease
  • Any history of heart failure
  • Any structural heart disease (eg: valvular lesions, hypertrophic obstructive cardiomyopathy)
  • Any abnormalities on a resting ECG
  • Deep vein thrombosis diagnosed within the last 6 months or under active treatment
  • Uncontrolled hypertension (systolic blood pressure \>220 mm Hg, diastolic \>120 mm Hg)
  • Aortic aneurysm
  • Aortic or cardiovascular surgery within 6 months of recruitment
  • A family history of sudden cardiac death, congenital arrhythmia syndromes or cardiomyopathy
  • Autonomic dysfunction, either previously diagnosed or upon testing by the research team
  • Any condition involving the brain or spinal cord
  • Diabetes
  • Alcohol consumption \> 21 units/week for women and 28 units/week for men or a history of previous alcohol dependence.
  • Acute kidney injury
  • Chronic kidney disease stage 4 or 5
  • Any condition causing hepatic dysfunction
  • Presence of a permanent pacemaker (these participants would be eligible for the pacemaker group)
  • Reduced chest wall movement (these participants would be eligible for the reduced chest movement group)
  • Any acute infection requiring antibiotic treatment within 3 months of recruitment
  • Any other surgery or illness requiring hospitalisation within 3 months of recruitment
  • Currently taking any medication with the exception of analgesics or the oral contraceptive pill.
  • Any wound or skin condition affecting the torso which may be affected by the application of adhesive ECG dots to the skin
  • Pregnancy
  • Inability to give informed consent
  • Older Healthy Volunteers
  • Any diagnosed condition primarily affecting the cardiovascular or respiratory systems
  • Symptomatic autonomic dysfunction
  • Orthostatic hypotension
  • Any condition involving the brain or spinal cord
  • Diabetes
  • Alcohol consumption \> 21 units/week for women and 28 units/week for men or a history of previous alcohol dependence.
  • Acute kidney injury
  • Chronic kidney disease stage 4 or 5
  • Any condition causing hepatic dysfunction
  • Presence of a permanent pacemaker
  • Chronic Obstructive Pulmonary Disease (COPD).
  • Any muscular dystrophy
  • Kyphosis
  • Scoliosis
  • Pectus excavatum
  • Any disease involving the lungs or pleura
  • Any acute infection requiring antibiotic treatment within 3 months of recruitment
  • Any other surgery or illness requiring hospitalisation within 3 months of recruitment
  • Currently taking any medication with the exception of analgesics or the oral contraceptive pill.
  • Any wound or skin condition affecting the torso which may be affected by the application of adhesive ECG dots to the skin
  • Pregnancy
  • Inability to give informed consent
  • Patients
  • Any infection which would require isolation or barrier nursing according to the hospital's infection control policy
  • Any wound or skin condition affecting the torso which may be affected by the application of adhesive ECG dots to the skin
  • Requirement for any form of artificial ventilatory support, including oxygen therapy
  • More than one of the inclusion criteria. (ie: a patient may not have both atrial fibrillation and reduced chest wall movement and be eligible for this study)
  • Inability to give informed consent

Key Trial Info

Start Date :

June 1 2012

Trial Type :

OBSERVATIONAL

Allocation :

ESTIMATED

End Date :

February 1 2014

Estimated Enrollment :

130 Patients enrolled

Trial Details

Trial ID

NCT01472133

Start Date

June 1 2012

End Date

February 1 2014

Last Update

February 12 2014

Active Locations (1)

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St Thomas' Hospital

London, United Kingdom, SE1 7EH