片麻痺患者の麻痺側におけるバイタルサイン測定の可能性

本研究では，片麻痺患者の血圧，体温，および動脈血酸素飽和度において，麻痺側と健側間で測定値に差がみられるか検討した．被験者には，脳血管障害等で片麻痺があり，研究に同意の得られた患者２７名を対象とし，そのうち男性は１５名，女性は１２名で，平均年齢は７２．８歳であった．これら患者のバイタルサインを，安静仰臥位で麻痺側と健側同時に測定した．その結果，平均収縮期血圧は，麻痺側で１２０．４４±１７．７４mmHg，健側では１２１．２８±１９．６８mmHg，また平均拡張期血圧は，麻痺側で７２．５８±９．４６mmHg，健側では７１．７２±８．８５mmHg であった．以上の血圧の測定値に麻痺側と健側間で有意差は認められなかった．一方，平均体温は，麻痺側で３６．６１±０．７℃，健側では３６．４３±０．７であり，麻痺側が有意に高値を示した．また，平均動脈血酸素飽和度は，麻痺側で９６．３１±１．８１，健側では９５．９６±１．８６であり，麻痺側が有意に高値を示した．しかし，これら平均体温および平均動脈血酸素飽和度における有意差は，正常変動と比較すると十分小さく，臨床的には意味がないと考えられた．以上から，麻痺側の測定であっても正確な値が得られることが明らかになった．

The purpose of the study was to investigate if there were significant differences in vital signs （blood pressure, temperature, oxygen saturation measurements）between the hemiplegic and healthy sides of hemiplegic stroke patients. The ２７ patients with hemiplegia due to chronic-phase cerebrovascular impairments were enrolled as study subjects after they provided informed consent for participation in the study. Of the subjects，１５were men and１２were women, with the mean age of ７２．８ years. The vital signs on the hemiplegic and healthy sides of the patients were simultaneously recorded in supine position. The mean systolic arterial pressure was １２０．４４±１７．７４ and １２１．２８±１９．６８mmHg on the hemiplegic and healthy sides, respectively. The mean temperature was３６．６１±０．７and３６．４３±０．７℃ on the hemiplegic and healthy sides, respectively. The mean oxygen saturation measurements was ９６．３１±１．８１ and ９５．９６± １．８６％ on the hemiplegic and healthy sides, respectively. The statistical comparisons showed no significant differences in blood pressure between the hemiplegic and healthy sides. Although there were significant differences in temperature and oxygen saturation measurements between the hemiplegic and healthy sides. Clinical implications suggest that these differences are enough small and negligible. In conclusion, the results showed that vital signs can be accurately measured even on the hemiplegic side.