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Updated: Jan 8, 2026

Measurement of Tissue Oxygenation Using Near-Infrared Spectroscopy in Patients Undergoing Hemodialysis

Measurement of Tissue Oxygenation Using Near-Infrared Spectroscopy in Patients Undergoing Hemodialysis

Published on: October 2, 2020

透析導入前の腎臓専門医ケア期間と血液透析患者の短期転帰との関連

Haruka Yamada^1,2, Daisuke Katagiri¹, Naoto Nunose³

¹Department of Nephrology, National Center for Global Health and Medicine, Japan Institute for Health Security, Tokyo, Japan.

Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy

|December 19, 2025

要旨

Introduction:

Despite recommendations for early nephrology referral in CKD stage G4+, emergency dialysis remains common.

Methods:

This retrospective study evaluated whether pre-dialysis nephrology care duration influences outcomes after initiation. We analyzed 388 hemodialysis patients (2014-2022), divided into Short (< 3 months) and Long (> 6 months) care groups. Clinical and socioeconomic factors were compared using Fisher's exact test, Mann-Whitney U test, and Kaplan-Meier analysis.

Results:

The proportion of Short Group patients did not decline over time. Ninety-day survival was significantly lower in the Short Group (p < 0.01). The Long Group had more comorbidities, such as hypertension and diabetes, likely reflecting earlier referral. The Short Group had longer hospital stays, more tunneled catheter use, and fewer AVF placements.

Conclusion:

These findings suggest that nephrology care exceeding 6 months before dialysis may improve short-term survival. Promoting earlier referral of patients with CKD could reduce emergency dialysis and enhance patient outcomes.

キーワード:

慢性腎臓病血液透析導入腎臓専門医ケア

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