Abstract
The changes in myocardial contractile force and heart rate which accompanied acute bleeding were studied in normal dogs. Increases in contractile force and heart rate were noted in response to hemorrhage until mean arterial pressure fell to less than 90 mm Hg. Below this level of pressure depression of both modalities began and continued as pressure was further lowered. These findings indicate that myocardial depression occurs at an early stage in acute bleeding and probably results from a critical diminution in coronary perfusion pressure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.