Evidence map›Paper›PMID 32776946›Full record

ArticlePloS one2020

Associations of cerebral oxygenation with hemoglobin levels evaluated by near-infrared spectroscopy in hemodialysis patients.

Susumu Ookawara, Kiyonori Ito, Yusuke Sasabuchi, Hideyuki Hayasaka, Masaya Kofuji, Takayuki Uchida, Keita Horigome, Sojiro Imai, Toshiko Akikawa, Noriko Wada and 10 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Cognitive impairment in chronic kidney disease: role of brain imaging, functional imaging, electroencephalography, cerebrospinal fluid biomarkers and sensors.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Cerebral oxygenation changes in response to post-hemodialysis standing.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2023
    Article
  11. Observational
  12. Article
  13. Cerebral oxygen saturation as outcome predictor after transfemoral transcatheter aortic valve implantation.Clinical research in cardiology : official journal of the German Cardiac Society · 2022
    Article
  14. Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors at 2 institutions in 1 country.

Susumu OokawaraDivision of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.ORCID 0000-0001-9802-3048
Kiyonori ItoDivision of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Yusuke SasabuchiData Science Center, Jichi Medical University, Tochigi, Japan.
Hideyuki HayasakaDepartment of Clinical Engineering, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Masaya KofujiDepartment of Clinical Engineering, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Takayuki UchidaDepartment of Clinical Engineering, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Keita HorigomeDivision of Hemodialysis, Yuai Nakagawa Clinic, Hakuyukai Medical Corporation, Saitama, Japan.
Sojiro ImaiDepartment of Dialysis, Minami-uonuma City Hospital, Niigata, Japan.
Toshiko AkikawaDivision of Hemodialysis, Yuai Nakagawa Clinic, Hakuyukai Medical Corporation, Saitama, Japan.
Noriko WadaDepartment of Dialysis, Minami-uonuma City Hospital, Niigata, Japan.
Satoshi KiryuDepartment of Dialysis, Minami-uonuma City Hospital, Niigata, Japan.
Satoru ImadaDivision of Hemodialysis, Yuai Nakagawa Clinic, Hakuyukai Medical Corporation, Saitama, Japan.
Mitsutoshi ShindoDivision of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Haruhisa MiyazawaDivision of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Keiji HiraiDivision of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Yasushi OnishiDepartment of Internal Medicine, Minami-uonuma City Hospital, Niigata, Japan.
Hirofumi ShimoyamaDivision of Nephrology, Yuai Nisshin Clinic, Hakuyukai Medical Corporation, Saitama, Japan.
Akihisa WatanabeDivision of Nephrology, Yuai Nakagawa Clinic, Hakuyukai Medical Corporation, Saitama, Japan.
Kaoru TabeiDepartment of Internal Medicine, Minami-uonuma City Hospital, Niigata, Japan.
Yoshiyuki MorishitaDivision of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Jichi Medical University · JPKishokai Medical Corporation · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hemoglobin (Hb) is associated with cerebral oxygenation status owing to its important role of carrying oxygen to systemic tissues. However, data concerning the associations between Hb levels and cerebral regional oxygen saturation (rSO2) of hemodialysis (HD) patients is limited. We aimed to identify these associations to consider a target Hb level for renal anemia management. This study included 375 HD patients. Cerebral rSO2 before HD was monitored using the INVOS 5100c oxygen saturation monitor. Multivariable linear regression analysis showed that cerebral rSO2 was independently associated with natural logarithm (Ln)-HD duration (standardized coefficient: -0.36), mean blood pressure (standardized coefficient: 0.13), pH (standardized coefficient: -0.10), serum albumin (standardized coefficient: 0.14), presence of diabetes mellitus (standardized coefficient: -0.20), and Hb level (standardized coefficient: 0.29). Furthermore, a generalized linear model with restricted cubic spline function was used to investigate the non-linear association between cerebral rSO2 and Hb levels. In the multivariable analysis for the adjustment with Ln-HD duration, mean blood pressure, pH, serum albumin, and presence of diabetes mellitus, a linear relationship was demonstrated between the two variables (p for linearity = 0.79). Hb levels revealed the positive and significant association with cerebral rSO2 in this study. Moreover, the relationship between cerebral rSO2 and Hb level was proven to be linear. Therefore, the target Hb level in renal anemia management would be considered to be the upper limits for the appropriate management of renal anemia by previous guidelines and position statement from the viewpoint of maintaining cerebral oxygenation in HD patients.

Indexed as

Renal DialysisSpectroscopy, Near-InfraredAgedBrainFemaleHemoglobinsHumansKidney Failure, ChronicMaleOxygenHemoglobinsOxygen

Identifiers

PMID32776946
PMCPMC7416957
OpenAlexW3048510906

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.