Can an extract of deer antlers alter cardiovascular dynamics?

Ten (10) dogs were maintained under 0.75% halothane anesthesia while 11 cardiovascular parameters were studied before and following intravenous administration of an extract prepared from deer antlers. The eleven variables including cardiac output, stroke volume, heart rate, mean arterial pressure, pulse pressure, central venous pressure, total peripheral resistance, pH, PaCO2, PaO2 and base line deficit were studied. Stroke volume was consistently elevated during the period of observation and significantly elevated at two time intervals. Other values were not altered significantly. Extract from deer antlers does not appear to have a great acute effect on the cardiovascular system of this animal model.