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Newly Developed Circulating Blood Volume‐Monitoring System and Its Clinical Application for Measuring Changes in Blood Volume During Hemofiltration
Author(s) -
Maeda Kenji,
Shinzato Takahiro,
Yoshida Fuminao,
Tsuruta Yoshinari,
Usuda Masatsune,
Yamada Kazumasa,
Ishihara Toshikazu,
Inagaki Futoshi,
Igarashi Isemi,
Kitano Tomoyuki
Publication year - 1986
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.1986.tb02603.x
Subject(s) - supine position , blood volume , hematocrit , hemofiltration , sitting , body position , volume (thermodynamics) , medicine , anesthesia , cardiology , hemodialysis , physical medicine and rehabilitation , pathology , physics , quantum mechanics
Blood and ultrafiltrate electrical resistivities were continuously monitored during hemofiltration. By substituting these values into a previously developed equation that was modified by the authors, the hematocrit value was determined; and blood volume change was obtained from the change in this value. The following facts were discovered as the result of monitoring the blood volume change during treatment: (a) When the body position was changed from the reclining to the sitting position, the blood volume decreased by 4.2 ± 0.3%. (b) With the body water removal rate kept constant, the body position recumbent, and the subject fasted, the blood volume gradually decreased. However, when the position was changed from reclining to sitting for food intake and once more returned to the supine position after the meal, the blood volume was greatly affected by the change in position and the food intake.