Key result
Electrosurgical coagulation of the free right ventricular myocardium in dog hearts was evaluated for its effect on systolic and diastolic pulmonary arterial pressure fluctuations.
Why the study?
Does complete damage of the free right ventricular myocardium affect pumping efficiency in a dog heart model?
Does complete damage of the free right ventricular myocardium affect pumping efficiency in a dog heart model?
This experimental study investigates the independent pump-like function of the right ventricle by assessing pulmonary arterial pressure after electrosurgical coagulation of the right ventricular myocardium in dogs.
Does not inform human RV management; leaves open free-wall contribution to pulmonary pressures in translational models.
A laboratory study designed to investigate the independent pump-like function of the right ventricle of the dog heart is presented. Systolic and diastolic pulmonary arterial pressure fluctuations were used as the definitive criterion for pumping efficiency. Control pressure levels are compared with those recorded after complete damage, by electrosurgical coagulation, of the free right ventricular myocardium. The degree of damage so produced was ascertained from an analysis of electrocardiographic, physiologic and histologic observations. The results are discussed and explained in terms of a postulated mechanism based upon the architecture of the individual ventricular muscle bands.
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A C P Bakos (1950) studied Right ventricular myocardial function. Electrosurgical coagulation of the free right ventricular myocardium vs. Control pressure levels was evaluated on Systolic and diastolic pulmonary arterial pressure fluctuations. Electrosurgical coagulation of the free right ventricular myocardium in dog hearts was evaluated for its effect on systolic and diastolic pulmonary arterial pressure fluctuations.
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