Casper Nielsen , Ane Johanne Davidsen Dahlberg , Mikkel Brabrand , Lasse Paludan Bentsen , Camilla Schade Skov , Line Emilie Lilholm Laugesen , Mette Rahbek Kristensen , Mette Løkke , Christian Nielsen , Pernille Just Vinholt , Peter Biesenbach
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引用次数: 0
Abstract
Aims
Previous studies suggest that infusing cold crystalloid fluid may have beneficial hemodynamic effects. This raises questions about the optimal temperature for fluid administration in the management of hypotensive patients, particularly regarding its impact on hemostasis and safety in patients at risk of bleeding. This study examined the effects of administering a 1000 mL bolus of Ringer's lactate at a temperature of 10 °C or 22 °C on hemostasis.
Methods
Twenty-five healthy participants were randomized to receive Ringer's lactate at either 10 °C or 22 °C, followed by cross-over to the alternative temperature. The primary outcome was change in clotting time. Secondary outcomes included alterations in thromboelastometry amplitude after 5 and 10 min, maximum clot firmness and maximum lysis at baseline and after 30 min. Additional secondary outcomes were differences in activated partial thromboplastin time (aPTT), international normalized ratio (INR), platelet count, platelet pre-activation and fibrinogen.
Results
ROTEM® analysis demonstrated a prolonged clotting time (mean difference: 2.6 s, 95 % CI: 0.30 to 4.90) after 30 min among participants who received a 10 °C bolus. No other alterations were observed in thromboelastometry. Additionally, fibrinogen levels were slightly elevated after 30 min.
Conclusion
Administration of a bolus of Ringer's lactate at 10 °C compared to 22 °C resulted in a minor prolongation of clotting time after 30 min as assessed by thromboelastometry and had minimal impact on hemostasis. Fibrinogen was slightly elevated after 30 min. We conclude that administering 1000 mL of cold fluids does not notably affect hemostasis and is considered safe in healthy adults.
期刊介绍:
The Journal of Thermal Biology publishes articles that advance our knowledge on the ways and mechanisms through which temperature affects man and animals. This includes studies of their responses to these effects and on the ecological consequences. Directly relevant to this theme are:
• The mechanisms of thermal limitation, heat and cold injury, and the resistance of organisms to extremes of temperature
• The mechanisms involved in acclimation, acclimatization and evolutionary adaptation to temperature
• Mechanisms underlying the patterns of hibernation, torpor, dormancy, aestivation and diapause
• Effects of temperature on reproduction and development, growth, ageing and life-span
• Studies on modelling heat transfer between organisms and their environment
• The contributions of temperature to effects of climate change on animal species and man
• Studies of conservation biology and physiology related to temperature
• Behavioural and physiological regulation of body temperature including its pathophysiology and fever
• Medical applications of hypo- and hyperthermia
Article types:
• Original articles
• Review articles