Study Results
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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COMPLETED
NA
30 participants
INTERVENTIONAL
2015-12-31
2016-11-30
Brief Summary
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Precise and simple measurement of the respiratory rate in volunteers by a new electronic camera device in different settings.
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Detailed Description
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According to recommendations of the World Health Organization (WHO) the RR should be measured by counting the breaths over a period of 1 minute by counting how many times the chest rises. This should be done when the patient is at rest. This appears impractical due to time consumption and workload for nursing staff in an emergency department. Studies have shown that this fact is a main reason why RR is often not recorded and critical situations might be missed. A prospective study by Lovett et al. demonstrated that the measurement of RR by nursing staff and even by impedance plethysmography as a common used device have a low sensitivity in detecting brady- or tachypnoea. The vital sign measurements may also differ according to observer variability. The approach to use mobile devices for RR measurement has shown encouraging results to improve efficiency in comparison to traditional methods though the field of using mobile devices is still in an experimental stadium.
The investigators aim to compare the results given by the camera-based measurements to the results given by capnography. The goal of the survey is to analyse the accuracy of measurements performed by the software.
The investigators will recruit healthy volunteers without any history of pulmonary diseases for an analysis of RR monitoring. Upon agreement the investigators will measure the RR camera-based by a device and simultaneously count the RR by capnography as a reference method. The data will be collected through a standardised protocol and archived in an Access(R) database. Different settings (e.g. supine vs sitting) will be assessed. Results will be depicted in a Bland-Altmann plot. In a first step the investigators plan to do a feasibility study, after that, as a second step, they will continue to measure the RR in different positions and situations to simulate a situation similar to emergency conditions.
Conditions
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Study Design
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NA
SINGLE_GROUP
DIAGNOSTIC
NONE
Study Groups
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Volunteers
Monitoring of respiratory rates via camera-based System Monitoring of respiratory rate by Philips®Vital Sign Device - Camera-based system (Prototype) and capnography simultaneously.
Philips®Vital Sign Device - Camera-based system (Prototype)
Respiratory rates monitored via camera-based system and capnography simultaneously The "Philips Vital Sign Device" will record chest movements by camera. The program will use an algorithm to convert the chest movements into the respiratory rate
Interventions
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Philips®Vital Sign Device - Camera-based system (Prototype)
Respiratory rates monitored via camera-based system and capnography simultaneously The "Philips Vital Sign Device" will record chest movements by camera. The program will use an algorithm to convert the chest movements into the respiratory rate
Eligibility Criteria
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Inclusion Criteria
* healthy male volunteers
* BMI 19-25
Exclusion Criteria
18 Years
MALE
Yes
Sponsors
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Clinical Trial Unit, University Hospital Basel, Switzerland
OTHER
University Hospital, Basel, Switzerland
OTHER
Responsible Party
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Principal Investigators
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Christian Nickel, MD
Role: PRINCIPAL_INVESTIGATOR
University Hospital, Basel, Switzerland
Locations
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Intensive Care Unit, University Hospital Basel
Basel, Canton of Basel-City, Switzerland
Countries
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References
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Hodgetts TJ, Kenward G, Vlachonikolis IG, Payne S, Castle N. The identification of risk factors for cardiac arrest and formulation of activation criteria to alert a medical emergency team. Resuscitation. 2002 Aug;54(2):125-31. doi: 10.1016/s0300-9572(02)00100-4.
Strauss R, Ewig S, Richter K, Konig T, Heller G, Bauer TT. The prognostic significance of respiratory rate in patients with pneumonia: a retrospective analysis of data from 705,928 hospitalized patients in Germany from 2010-2012. Dtsch Arztebl Int. 2014 Jul 21;111(29-30):503-8, i-v. doi: 10.3238/arztebl.2014.0503.
Pollack MM, Ruttimann UE, Getson PR. Pediatric risk of mortality (PRISM) score. Crit Care Med. 1988 Nov;16(11):1110-6. doi: 10.1097/00003246-198811000-00006.
Bone RC, Sprung CL, Sibbald WJ. Definitions for sepsis and organ failure. Crit Care Med. 1992 Jun;20(6):724-6. doi: 10.1097/00003246-199206000-00002. No abstract available.
Meade M, Guyatt G, Cook D, Griffith L, Sinuff T, Kergl C, Mancebo J, Esteban A, Epstein S. Predicting success in weaning from mechanical ventilation. Chest. 2001 Dec;120(6 Suppl):400S-24S. doi: 10.1378/chest.120.6_suppl.400s.
Mower WR, Sachs C, Nicklin EL, Safa P, Baraff LJ. A comparison of pulse oximetry and respiratory rate in patient screening. Respir Med. 1996 Nov;90(10):593-9. doi: 10.1016/s0954-6111(96)90017-7.
Subbe CP, Kruger M, Rutherford P, Gemmel L. Validation of a modified Early Warning Score in medical admissions. QJM. 2001 Oct;94(10):521-6. doi: 10.1093/qjmed/94.10.521.
Goldhill DR, White SA, Sumner A. Physiological values and procedures in the 24 h before ICU admission from the ward. Anaesthesia. 1999 Jun;54(6):529-34. doi: 10.1046/j.1365-2044.1999.00837.x.
Kellett J, Murray A, Woodworth S, Huang W. Trends in weighted vital signs and the clinical course of 44,531 acutely ill medical patients while in hospital. Acute Med. 2015;14(1):3-9.
Grossmann FF, Nickel CH, Christ M, Schneider K, Spirig R, Bingisser R. Transporting clinical tools to new settings: cultural adaptation and validation of the Emergency Severity Index in German. Ann Emerg Med. 2011 Mar;57(3):257-64. doi: 10.1016/j.annemergmed.2010.07.021. Epub 2010 Oct 16.
Venkatesh AK, Curley D, Chang Y, Liu SW. Communication of Vital Signs at Emergency Department Handoff: Opportunities for Improvement. Ann Emerg Med. 2015 Aug;66(2):125-30. doi: 10.1016/j.annemergmed.2015.02.025. Epub 2015 Mar 21.
Hogan J. Why don't nurses monitor the respiratory rates of patients? Br J Nurs. 2006 May 11-24;15(9):489-92. doi: 10.12968/bjon.2006.15.9.21087.
Lovett PB, Buchwald JM, Sturmann K, Bijur P. The vexatious vital: neither clinical measurements by nurses nor an electronic monitor provides accurate measurements of respiratory rate in triage. Ann Emerg Med. 2005 Jan;45(1):68-76. doi: 10.1016/j.annemergmed.2004.06.016.
Edmonds ZV, Mower WR, Lovato LM, Lomeli R. The reliability of vital sign measurements. Ann Emerg Med. 2002 Mar;39(3):233-7. doi: 10.1067/mem.2002.122017.
Karlen W, Gan H, Chiu M, Dunsmuir D, Zhou G, Dumont GA, Ansermino JM. Improving the accuracy and efficiency of respiratory rate measurements in children using mobile devices. PLoS One. 2014 Jun 11;9(6):e99266. doi: 10.1371/journal.pone.0099266. eCollection 2014.
Folke M, Cernerud L, Ekstrom M, Hok B. Critical review of non-invasive respiratory monitoring in medical care. Med Biol Eng Comput. 2003 Jul;41(4):377-83. doi: 10.1007/BF02348078.
Other Identifiers
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EKNZ 2015-306
Identifier Type: -
Identifier Source: org_study_id
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