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The effects of cold on hemostasis
Oral Surgery, Oral Medicine, and Oral Pathology
|April 1, 1980
Summary
Lowering rabbit ear temperature prolonged coagulation and bleeding times, contrary to expectations. Cold application increased bleeding, and no optimal nonfreezing temperature for enhancing hemostasis was identified.
Area of Science:
- Physiology
- Biomedical Research
Background:
- Cold application is often believed to reduce bleeding.
- The precise effects of temperature on hemostasis require further investigation.
Purpose of the Study:
- To investigate the impact of decreasing temperature on coagulation and bleeding times.
- To determine if cold temperatures can enhance hemostasis.
Main Methods:
- In vitro assessment of coagulation times.
- In vivo evaluation of bleeding times in rabbit ears at decreasing temperatures (down to 1°C).
Main Results:
- Both in vitro coagulation and in vivo bleeding times were proportionally prolonged as rabbit ear temperature decreased.
- Contrary to common assumptions, cooling increased bleeding rather than decreasing it.
Conclusions:
- Temperature significantly affects hemostasis, with decreasing temperatures prolonging coagulation and bleeding.
- An optimal nonfreezing cold temperature to consistently enhance hemostasis could not be determined from this study.