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Updated: Feb 6, 2026
08:08
Cardiopulmonary Bypass in a Mouse Model: A Novel Approach
Published on: September 22, 2017
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Cardiopulmonary bypass prime composition: beyond crystalloids versus colloids.
Gunnar Malmqvist1, Helena Claesson Lingehall2,3, Micael Appelblad2
11 Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden.
Perfusion
|August 18, 2018
Summary
Hyperosmolar cardiopulmonary bypass (CPB) prime significantly increases plasma osmolality during surgery. This rapid change in osmolality requires recognition due to potential organ dysfunction risks.
Area of Science:
- Cardiovascular Surgery
- Physiology
- Biochemistry
Background:
- Limited literature discusses plasma osmolality changes from hyperosmolar cardiopulmonary bypass (CPB) prime.
- Understanding these osmolality shifts is crucial for patient safety during CPB.
Purpose of the Study:
- To determine the magnitude and temporal changes in plasma osmolality when using a hyperosmolar CPB prime.
- To investigate the impact of hyperosmolar prime on perioperative plasma osmolality.
Main Methods:
- Prospective observational study in 30 elective coronary bypass surgery patients.
- Plasma osmolality analyzed at eight perioperative time points.
- Utilized a hyperosmolar prime during cardiopulmonary bypass.
Main Results:
- Preoperative plasma osmolality was normal (297±4 mOsm/kg).
- A significant increase to 322±17 mOsm/kg occurred at CPB commencement, remaining elevated throughout.
- Postoperative osmolality normalized by day 1 (291±5 mOsm/kg).
Conclusions:
- Hyperosmolar CPB prime causes a dramatic and immediate increase in plasma osmolality.
- Rapid osmolality changes are linked to organ dysfunction, necessitating awareness of CPB prime effects.
- Further research is needed to explore clinical outcomes and organ function impacts.
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