Analysis of kinetics of blood ionized calcium during hemodialysis using an i-STAT portable, hand-held blood analyzer.
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- Munakata Akiko
- Asagaya Suzuki Clinic (Shinryojyo)
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- Suzuki Toshiaki
- Asagaya Suzuki Clinic (Shinryojyo)
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- Arai Hiroyuki
- Koenji Suzuki Clinic
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- Yokoi Mayumi
- Asagaya Suzuki Clinic (Shinryojyo)
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- Fukazawa Atsushi
- Asagaya Suzuki Clinic (Shinryojyo)
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- Osaka Kouichi
- Asagaya Suzuki Clinic (Shinryojyo)
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- Matsuzaki Ryuji
- Asagaya Suzuki Clinic (Shinryojyo)
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- Miura Akira
- Asagaya Suzuki Clinic (Shinryojyo)
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- Watanabe Kaori
- Asagaya Suzuki Clinic (Shinryojyo)
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- Morizono Yasuko
- Koenji Suzuki Clinic
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- Gon Kyoko
- Asagaya Suzuki Clinic (Shinryojyo)
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- Kanazawa Kumiko
- Asagaya Suzuki Clinic (Shinryojyo)
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- Miyauchi Ikue
- Asagaya Suzuki Clinic (Shinryojyo)
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- Suzuki Keiko
- Koenji Suzuki Clinic
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- Kubo Kazuo
- Asagaya Suzuki Clinic (Shinryojyo)
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- Ozawa Katsuyoshi
- Minami Ikebukuro Clinic (Shinryojyo)
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- Maeda Hiromi
- Minami Ikebukuro Clinic (Shinryojyo)
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- Ozasa Hisashi
- Minami Ikebukuro Clinic (Shinryojyo)
Bibliographic Information
- Other Title
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- 血液透析中における血中イオン化カルシウムの動態 ポータブル血液分析器i‐STATを用いた解析
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Abstract
The present study investigated the kinetics of blood ionized calcium (i-Ca) during hemodialysis to develop a nomogram and conversion table for easy calculation of serum total calcium (T-Ca) concentration using the whole blood i-Ca concentration obtained with an i-STAT analyzer.<br>1) Fifty-nine stable ESRD patients were treated with 4-hrs regular hemodialysis treatments using the dialysate, which contained the calcium concentration of 3.0mEq/l (1.5mmol/l). 2) Serum T-Ca concentration increased significantly from 9.43±0.90 (predialysis) to 10.5±0.70mg/dl (postdialysis) (p<0.05). Whole blood i-Ca also increased from 1.26±0.10 to 1.30±0.07mmol/l (p<0.0001). 3) lonized calcium proportion (i-Ca to T-Ca concentration ratio) decreased significantly after dialysis from 53.43±0.03 to 49.55±0.04% (p<0.001). A significant inverse relationship between blood pH and the ionized calcium proportion. 4) We also investigated the relationship between serum T-Ca and whole blood i-Ca concentration before and after dialysis. In predialysis, there was a good relationship between two factors, T-Ca=7.507×i-Ca+0.015 (r=0.839; p<0.001). In postdialysis, however, there was no significant relationship noted. Finally, multiple regression analysis with other factors such as pH and albumin, was required to obtain a significant result; T-Ca=3.369×i-Ca+5.117×pH-32.070 (r=0.436; p=0.0052).<br>In conclusion, measurement of whole blood i-Ca concentration, using the i-STAT portable “point-of-care” analyzer and utilization of the normogram for estimated serum T-Ca concentration are very useful for the diagnosis and treatment of abnormal calcium metabolism in hemodialysis units.
Journal
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- Nihon Toseki Igakkai Zasshi
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Nihon Toseki Igakkai Zasshi 34 (13), 1525-1533, 2001
The Japanese Society for Dialysis Therapy
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Details 詳細情報について
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- CRID
- 1390282679652101120
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- NII Article ID
- 10008044195
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- NII Book ID
- AN10432053
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- ISSN
- 1883082X
- 13403451
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed