Objective To explore a safe and efficient method for endotracheal intubation in mice.Methods A small longitudinal incision was made in the middle of the neck in rats.After the trachea was exposed,the rats were undergone endotracheal intubation and the operation was completed in about 1 min.Results The success rate of intubation was 100% in over 1300 cases.Conclusion The whole procedure can be finished by one person without extra equipment and special mouse position.This novel and efficient method can significantly improve the success rate in using mice as animal models for in vivo studies.
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