The effects of phentolamine on the duration of the phases of ventricular systole in man.
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Biomedical subjects
Publications and source records attributed to R F Gomprecht.
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A His bundle electrogram was obtained in a 65 year old male with syncopal episodes. A split bundle of His deflection was recorded. After the intravenous administration of phentolamine, a marked shortening of the H-H' interval was observed. This signifies an improvement in conduction at the bundle of His level.