CONTINUOUS POTENTIOMETRIC MEASUREMENT OF POTASSIUM CONCENTRATION AND pH IN WHOLE BLOOD DURING OPEN HEART SURGERY

Munehiro SHIMADA; Masayuki TOTANI; Katsuyuki MIYASAKA; Hirofumi MIURA; Yaichiro SHIBAZAKI; Hiroshi SANKAWA; Minoru TSUNEMOTO

doi:10.11392/jsao1972.9.589

Munehiro SHIMADA, Masayuki TOTANI, Katsuyuki MIYASAKA, Hirofumi MIURA, Yaichiro SHIBAZAKI, Hiroshi SANKAWA, Minoru TSUNEMOTO

著者情報

キーワード: Cardiopulmonary bypass, potassium concentration, pH, ion selective electrode, continuous potentiometric measurement

ジャーナルフリー

1980 年 9 巻 2 号 p. 589-592

DOI https://doi.org/10.11392/jsao1972.9.589

詳細

抄録

A flow through system with ion selective electrodes for the measurement of the blood potassium ion and hydrogen exponent (pH) continuously during cardiopulmonary bypass in human open heart surgery is described. Potassium concentrations obtained with this method agree well with the ones determined by flame photometry and pH values correspond well with those made by blood gas analyzer (AVL). The time delay in measurement with this system is relatively long (1min. 45sec.) but will be shortened in the future. Continuous monitoring of these important parameters can help reduce metabolic derangements during cardiopulmonary bypass and make post bypass management easier.

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