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Kinetic Analysis of Daily Hemofiltration

2004· article· en· W2070514238 on OpenAlexvenueno aff
Akihiro C. Yamashita, Hideki Kawanishi

Bibliographic record

VenueHemodialysis International · 2004
Typearticle
Languageen
FieldMedicine
TopicDialysis and Renal Disease Management
Canadian institutionsnot available
Fundersnot available
KeywordsHemofiltrationUltrafiltration (renal)HemodialysisKinetic energyMedicineUreaChemistryUrologyInternal medicineChromatographyBiochemistry

Abstract

fetched live from OpenAlex

Daily hemofiltration (D‐HF) is a new treatment modality that shows unique solute removal characteristics and possibly provides high quality of life for patients with end‐stage renal disease. Objective: To evaluate solute‐removal characteristics of D‐HF by kinetic modeling analysis. Methods: Five HD patients with normal 4 h × 3 times/week were switched to D‐HF (2 h × 6 times/week). Ultrafiltration rates (QF) or small solute clearances were approximately 100 mL/min. All the necessary kinetic parameters were determined from patients' physical data and HD portion of the clinical measurements. The two‐compartment kinetic model predicted the concentration changes after switching from normal HD to D‐HF. Results: Concentrations of small solutes such as urea–nitrogen (UN) increased, whereas that of β2‐microglobulin (β2‐MG) decreased after switching from normal HD to D‐HF (Figure 1). Predicted solute concentrations for UN as well as β2‐MG correlated well with the clinical results. The model predicted that QF = 140 mL/min may be required for time‐averaged concentration (TAC) of UN to be unchanged. The model also predicted that the 7‐times/week D‐HF may not increase the TAC of UN very much even after switching from normal HD to D‐HF. Conclusion: D‐HF is suitable for removing larger solutes but may not be good enough for removing small solutes. A 7‐day treatment (7 times/week) may greatly improve the solute removal capacity of the so‐called daily treatment (6 times/week) not only for larger solutes but also for small solutes.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.008
Threshold uncertainty score0.015

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.014
GPT teacher head0.274
Teacher spread0.260 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2004
Admission routes1
Has abstractyes

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