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Clinical Trials/NCT06584825
NCT06584825
Recruiting
Not Applicable

The Impact of Enhanced Postoperative Vitals Monitoring In-hospital and at Home vs. Standard Care After Inpatient Abdominal and Vascular Surgery: A Pilot Two-centre Randomized Controlled Study

University of British Columbia2 sites in 1 country110 target enrollmentNovember 17, 2025

Overview

Phase
Not Applicable
Intervention
Not specified
Conditions
Surgery
Sponsor
University of British Columbia
Enrollment
110
Locations
2
Primary Endpoint
Days Alive At Home (DAH30)
Status
Recruiting
Last Updated
5 months ago

Overview

Brief Summary

The aim of this clinical trial is to examine the feasibility of an enhanced vital sign monitoring solution in-hospital and at-home. This study includes adult patients undergoing inpatient major vascular or abdominal surgery. Researchers will compare the enhanced vitals monitoring group to the standard of care group to see if it may change post-operative management and outcomes. The primary question it aims to answer is if enhanced monitoring of surgical patient vitals can increase the number of days at home alive in the first 30 days after surgery. Participants in the intervention group will test two vitals monitoring devices, one in the hospital and one at home. They will also be asked to complete several questionnaires and a follow up phone call.

Detailed Description

After surgeries, patients are at risk of a variety of complications, thus requiring monitoring for early detection and treatment of complications. The current standard of care consists of continuous monitoring of vital signs during and after anesthetic and/or in the high-acuity and intensive care units, followed by intermittent measurement of vital signs once the patient is in the ward. Once the patient is at home, there is no monitoring nor follow-up. However, it has been well-established that existing intermittent monitoring of vital signs are too infrequent to capture important vital sign derangements. For example, in an observational study of 312 patients who underwent abdominal surgery, 18% of patients had blood pressure \<65 mmHg for at least 15 minutes that were not detected by conventional intermittent monitoring. Nevertheless, it remains unknown the optimal method and duration of increased monitoring for medium-to-high risk surgical patients in-hospital and at home. In a randomized controlled trial (RCT) involving 905 adults undergoing non-elective surgery, remote automated monitoring with virtual care did not reduce the number of days alive and at home 30 days after surgery (DAH30) compared to standard of care. However, there are signals of increased detection of drug errors, decreased pain, and benefits in patients in centres with more escalations in care. This study is a single-blinded, parallel-group, pilot RCT, with an exploratory feasibility analysis. The study will be reported according to the Consolidated Standards of Reporting Trials (CONSORT) pilot RCT standards. The study will be conducted at St Paul's Hospital (SPH), Providence Health Care (PHC), in Vancouver, British Columbia, Canada, an academic tertiary care hospital affiliated with the University of British Columbia. The study will also run at and Mount Saint Joseph's (MSJ) Hospital, PHC. The PHC anesthesia and surgical program already has a strong perioperative care focus, featuring enhanced postoperative support available for high risk patients including 1) surgical high-acuity unit (SHAU) with continuous monitoring, run by anesthesiologists, 2) Perioperative Outreach Team that rounds on patients daily for as long as clinically indicated, run by anesthesiologists, 3) multidisciplinary collaboration and support from perioperative internal medicine and/or geriatric teams, with daily rounding for as long as clinically indicated and availability for preoperative consultation and post-discharge follow-up in rapid access clinics, and 4) protocolized monitoring for myocardial injury after non-cardiac surgery for three days according to the Canadian Cardiovascular Society guidelines. The objective of the study is to obtain pilot data on the enhanced monitoring of vital signs in patients undergoing inpatient major abdominal and/or vascular surgery (i.e. continuous monitoring of vital signs in-hospital (from the day of surgery until 3 days after surgery) followed by twice-daily monitoring at home for 3 days after discharge, with a protocol for care escalation if needed, compared to standard monitoring (intermittent monitoring in-hospital and no monitoring at home).

Registry
clinicaltrials.gov
Start Date
November 17, 2025
End Date
December 31, 2027
Last Updated
5 months ago
Study Type
Interventional
Study Design
Parallel
Sex
All

Investigators

Responsible Party
Principal Investigator
Principal Investigator

Janny Ke

Anesthesiologist, Clinical Assistant Professor

University of British Columbia

Eligibility Criteria

Inclusion Criteria

  • Undergoing inpatient major abdominal (general surgery, urology, or gynecology) or vascular surgery at St. Paul's Hospital (SPH) and Mount Saint Joseph (MSJ) Hospital
  • Length of stay of at least 48 hours (planned by the clinical team, or by the Canadian Institute of Health Information Discharge Abstract Database Expected Length of Stay (ELOS) for the surgical case mix group
  • Self-reported fluency in reading and speaking in English for patient or home caregiver
  • Living within British Columbia, Canada and in an area that is covered by Bell cellular network (the Cloud DX Inc. device has cellular Long Term Evolution (LTE) using the Bell network).

Exclusion Criteria

  • Patient refusal
  • Transplant surgery, since these patients have a unique set of considerations and postoperative course.
  • Inability to communicate with research personnel, perform self-monitoring of vital signs, or complete study surveys due to cognitive, language, visual, or hearing barriers
  • Lack of capacity to consent to the study (including under the active influence of sedative medication or having received general anesthetic within the past 24 hours)
  • Unable to use (or does not have a caregiver who can help put on/take off) study monitoring device at home
  • Preoperatively known planned discharge to a nursing home or rehabilitation facility
  • Patient with known allergic reactions to any part material of the device
  • Unable to monitor blood pressure accurately noninvasively using arm blood pressure cuffs, such as due to underlying vascular anatomy or non-pulsatile blood flow physiology
  • Unlikely to be able to return the home monitoring kit (no fixed address, living too far away from site, etc.)

Outcomes

Primary Outcomes

Days Alive At Home (DAH30)

Time Frame: Within 30 days after surgery, with the day of surgery as day 0

Number of days within 30 days of surgery when participants are alive and at home, without visiting an emergency department or urgent care centre or being admitted to a hospital. Home refers to their own home, or a residence of a relative, friend or acquaintance, but excludes a nursing home or a rehabilitation facility. If a participant visits an emergency department or urgent care centre, or is admitted to a hospital any time between midnight and 23:59 on a given day, they will lose that day as a day alive at home. If they remain in the care facility past midnight into the next day, then they lose 2 days alive at home. They will continue to lose days alive at home until the day in which they are home from midnight for an entire day. In other words, a day alive at home can be counted only when participants spend an entire day from midnight to 23:59 at home, without being stay at an emergency department, an urgent-care centre or a hospital.

Secondary Outcomes

  • Quality of Recovery at baseline(14 days after surgery)
  • Mortality(Within 30 days after surgery, with the day of surgery as day 0)
  • Emergency Department visit(s) after discharge(Within 30 days after surgery, with the day of surgery as day 0)
  • Urgent walk-in clinic visit(s)(Within 30 days after surgery, with the day of surgery as day 0)
  • Family doctor clinic visit(s)(Within 30 days after surgery, with the day of surgery as day 0)
  • Surgeon clinic contact(s)(Within 30 days after surgery, with the day of surgery as day 0)
  • Post-Operative Length of Stay(The time from the date of the surgery to the date of discharge from the hospital, up to 30 days after surgery)
  • Quality of Recovery at 14 days postoperatively(14 days after surgery)
  • Quality of Recovery at 30 days postoperatively(30 days after surgery with the day of surgery as day 0)
  • Major Morbidity(Within 30 days after surgery, with the day of surgery as day 0)
  • Readmission(s)(Within 30 days after surgery, with the day of surgery as day 0)

Study Sites (2)

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