Detecting Ischemia After Replantation Surgery Using a Biosensor

Early Discovery of Ischemia After Replantation Surgery of the Extremities (EDIR-study) ; An Open, Prospective, Intervention Study

NA · Oslo University Hospital · NCT05297266

This study is testing a new device that monitors blood flow in patients who have had replant surgery on their arms or legs to see if it can help doctors catch problems early.

Quick facts

PhaseNA
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years to 100 Years
SexAll
SponsorOslo University Hospital (other)
Locations1 site (Oslo)
Trial IDNCT05297266 on ClinicalTrials.gov

What this trial studies

This clinical investigation aims to evaluate the feasibility and safety of the IscAlert™ device in patients undergoing extremity replantation surgery. The device continuously monitors carbon dioxide levels and temperature in the replanted tissue to detect signs of ischemia, which may indicate restricted blood flow. If ischemia is detected, the device will alert the medical team for timely intervention, potentially leading to reoperation if necessary. The study will enroll sixty patients and utilize up to 400 sensors to gather data over a ten-day postoperative period.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older who require extremity replantation surgery.

Not a fit: Patients who do not require extremity replantation surgery will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve the early detection of ischemia in replanted extremities, potentially reducing complications and improving patient outcomes.

How similar studies have performed: While the IscAlert device has shown promising results in animal studies, this approach is novel in the context of human extremity replantation surgery.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients must be in need of extremity replantation surgery
* Subject must be ≥ 18 years
* Able to give written signed informed consent

Exclusion Criteria:

* None

Where this trial is running

Oslo

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Ischemia, Blood Circulation Disorder, Carbon Dioxide, Biosensing Techniques, Amputation, Traumatic, Biosensor, Replantation, Carbon dioxide

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.