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Clinical Trial Summary

Sometimes in hospital, it is not noticed that patients are becoming unwell quickly enough. This may mean that they are less likely to survive than if the worsening of their illness had been picked up sooner. One reason for this may be that hospital staff are unable to check patients' vital signs (such as breathing rate, heart rate and level of oxygen in their blood) frequently enough to help them decide if a patient is becoming more unwell. Currently, for nurses to watch these vital signs closely, patients are either attached to a static machine by the patient's bedside using wires, or staff visit the patient every few hours to measure these vital signs using a portable wired machine. It is now possible to closely monitor patients using small devices which attach to the wrist, finger or chest. These devices allow nursing staff to continually watch vital signs data from these patients when they are away from their bedside. These machines are also wireless and portable, so they do not stop patients moving around, which is important for recovery, and are comfortable to wear. In past years, the investigators have tested these devices and developed a system to allow the clinical staff to see the continuous vital signs. In this final stage of the project, the investigators will test this system (with the selected devices) on patients in hospital. The investigators will start by doing a small trial on one surgical ward, and asking for staff and patient feedback of how the system worked, how useful it was, and how easy to use. If the feedback from this first small trial is positive, the investigators will conduct a future trial in several hospitals, to test how useful the system is in improving patient recovery.

Clinical Trial Description

The primary objective of this study is to assess the impact of ambulatory monitoring systems (AMS) integration (with active clinical alerts) versus standard care in deterioration detection. Secondary objectives include other deterioration detection and clinical outcomes, trial progression outcomes, staff impact and alerting system performance, overall system reliability and patient experience. This study is a superiority feasibility randomised controlled trial with two-arm parallel groups and 1:1 allocation ratio to compare the use of an ambulatory monitoring system with standard care in hospitalised patients. This feasibility trial will be conducted not only to assess the impact of AMS on early deterioration detection and other clinical outcomes but also to explore recruitment rate, calculate required sample size, number of sites and recruitment period for a full definitive RCT. Participants will be recruited in one or more surgical wards inside Oxford University Hospitals NHS Foundation Trust (to be decided during feasibility trial, dependant on recruitment rate). Patients will be screened, recruited and participate in this study throughout their hospital stay, no follow-up visits will be required. The intervention consists in the use of AMS that also includes an alerting system. Participants will wear one pulse oximeter (WristOx2 3150 OEM BLE, shorted to "Nonin", hereafter) measuring pulse rate (PR) and oxygen saturation (SpO2), one chest patch (VitalPatch) that will continuously measure their heart rate (HR), respiratory rate (RR), temperature,; and one A&D UA-1200 BLE Blood Pressure device, intermittently measuring systolic and diastolic blood pressure, and pulse rate. Clinical staff will be able to access and interact with real-time vital signs through a dashboard style display and will be alerted via a hand-held device, and/or dashboard, according to the patient's EWS score. The control group will also be fitted with these devices. However, clinical staff will not be able to access the dashboard display or receive alerts. The trial will include a calibration period inside a surgical unit were the investigators will refine out alerting system. During this period the investigaotors will optimise our alerts through continuous analysis and feedback from the relevant clinical teams. Randomisation will still be conducted during this period. This feasibility trial will be conducted in surgical units at the John Radcliffe Hospital, Oxford University Hospitals (OUH) NHS Foundation Trust. This will: - Assess the feasibility of a definitive RCT - Support sample size calculation for full study - Assess recruitment rate and the need for inclusion of more wards inside OUH.Staff focus groups or interviews will be held to gather feedback on the system which may inform further refinements, including usability, perceived effect on workload and appropriateness of alerts. - Multi-professionals staff interviews with be held to assess staff perception of the acceptability of the system in clinical practice. Patients interviews will be held with patient who have worn the monitoring, to gain their perceptions of the system, including wearability, sense of safety and potential improvements. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05118477
Study type Interventional
Source University of Oxford
Contact Sarah Vollam, PhD
Phone +441865 231440
Email [email protected]
Status Not yet recruiting
Phase N/A
Start date December 1, 2021
Completion date October 1, 2022

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