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Functions of the Cardiovascular System
Published in Peter Kam, Ian Power, Michael J. Cousins, Philip J. Siddal, Principles of Physiology for the Anaesthetist, 2020
Peter Kam, Ian Power, Michael J. Cousins, Philip J. Siddal
The anterior cardiac vein from the right ventricle carries about 15%–20% of venous blood and drains into the right atrium. Most of the venous blood from the left ventricle drains into the great cardiac vein and finally into the coronary sinus, which carries 65%–75% of coronary venous blood and drains into the right atrium. About 3%–5% of total venous blood enter directly into the ventricles.
Heart Microcirculation
Published in John H. Barker, Gary L. Anderson, Michael D. Menger, Clinically Applied Microcirculation Research, 2019
The coronary arteries originate from the aorta at the base of the sinuses of Valsalva behind the cups of the aortic valve and penetrate the myocardium and proliferate in a rich network of microvessels including arterioles, capillaries, and venules. The capillaries lie between and run parallel to the myocardial fibers. Most of blood from the myocardial capillary bed is returned to the right atrium via the anterior cardiac veins or the coronary sinus, although some venous blood directly enters the ventricular cavities via thebesian channels.
Heart and Circulation
Published in Sarah Armstrong, Barry Clifton, Lionel Davis, Primary FRCA in a Box, 2019
Sarah Armstrong, Barry Clifton, Lionel Davis
Two-thirds of venous drainage occurs via the coronary sinus and anterior cardiac veins directly into the right atrium and one-third via the Thebesian veins and small venules into all heart chambers
Retrograde venography and three-dimensional mapping of a great cardiac vein with separate drainage into the high right atrium in a patient with Wolf-Parkinson-White syndrome
Published in Baylor University Medical Center Proceedings, 2018
Keith Suarez, Javier E. Banchs, Judith P. Lazol, James N. Black
Abnormal drainage of the GCV into other structures has been reported. In a review of 250 hearts, there was a case of a GCV draining into the anterior cardiac veins, which drain the anterior wall of the right ventricle.9 Drainage into the left internal thoracic vein was found during surgery in a 17-month-old girl who was undergoing repair of a ventricular septal defect.10 Drainage into the left atrium was incidentally discovered during computed tomography of the coronaries in a patient with chest pain and in another patient who underwent surgical revascularization.11