Respiratory Findings in the Neurocirculatory Asthenia

摘要

(1) The respiratory functions were investigated by metabulator in 25 Fig.10. The irregularity of the depth of respiration before and after adminis-tration of Bellergal.(2) The depth of respiration was irregular in NCA, while it was regular in the healthy.(3) As an index for irregularity of the depth of respiration, the value of its standard deviation divided by the mean value of the depth in the respiratory curves may be used.(4) The index for irregularity was significantly greater in NCA than in the healthy.(5) The sigh was observed in some patients.(6) The slope of respiratory curves recorded by mctabulator was usually smooth and linear in the healthy. In NCA it was irregular and fluctuating.(7) When the patient was stimulated by some methods, deepening of a breath was observed.(8) No particular difference was observed in the tidal volume between the healthy and patients.(9) The respiratory minute volume was a little smaller in NCA than in the healthy.(10) In some patients, the ventilatory equivalent exceeded the upper normal limit. This means poor efficiency to take up oxygen in NCA.(11) The augmentation of the respiratory minute volume after exercise did not differ in the healthy and patients.(12) The above mentioned findings were seen in most cases of the patients.(13) These findings were observed in patients who had no respiratory discomfort or at the period when the patients had no respiratory complaints.(14) The neurocirculatory asthenia has no specific findings to serve for its diagnosis. However, the irregularity of the depth of respiration, sighs, and higher value of the ventilation equivalent seem to be useful for the diagnostic criteria of the disease.(15) The index of the standard deviation divided by mean value of the depth of respiration reduced after administration of Bellergal, when it was high before, and may be used for evaluation of the effects of various drugs for NCA. It may be useful also for an objective measure for the seriousness of the disease.