Related Experiment Videos
Revascularization of digits after prolonged warm ischemia
G Inoue1, R Nakamura, T Imamura
1Department of Orthopaedic Surgery, Nagoya University School of Medicine, Japan.
Journal of Reconstructive Microsurgery
|January 1, 1988
Summary
Successful digit revascularization is possible after prolonged warm ischemia, even exceeding 24 hours. This challenges previous beliefs about acceptable warm ischemia times for limb salvage.
Area of Science:
- Orthopedic Surgery
- Vascular Surgery
- Trauma Surgery
Background:
- Digit revascularization aims to restore blood flow to an injured extremity.
- Prolonged warm ischemia is a critical factor limiting successful revascularization outcomes.
- Previously established limits for warm ischemia were considered to be 8-10 hours.
Observation:
- Four cases of digit amputation injuries are presented.
- Injuries occurred during summer months with average temperatures above 23°C.
- The average warm ischemia time was 24 hours (range: 20-30 hours).
Findings:
- Complete digit survival was achieved in three out of four cases.
- Partial survival was observed in one case.
- Successful revascularization was demonstrated despite ischemia times significantly longer than previously thought acceptable.
Implications:
- The findings suggest that current time limits for warm ischemia in digit revascularization may be too conservative.
- Extended periods of warm ischemia do not necessarily preclude successful limb salvage.
- Further research may redefine the threshold for warm ischemia in managing digit injuries.