Monitoring of nutritional status in patients withpressure injuries using the phase angle as an indicator –a study of two cases
Bibliographic record
Abstract
Introduction: Bioelectrical impedance (BIA) is one of the most widely used indirect methods for assessing human body composition.The phase angle (PhA) as its derivative is considered an indicator of cellular health and monitoring of nutritional status.Due to its safety and reproducibility, it can be used as a prognostic indicator in disease, the assessment of mortality risk, and the effectiveness of nutritional interventions, as reflected in an increasing number of scientific studies.The aim of the study was to assess nutritional status using the PhA indicator in the course of treatment in two patients with pressure injuries.Material and methods: Two patients with pressure injuries were selected to have three consecutive BIA tests, from which the PhA indicator was calculated.In the subsequent three measurements, it was assessed, correlating this with the local wound condition on the day of the measurements taken.Results: After the initial assessment, nutritional intervention was implemented simultaneously with medical and nursing interventions resulting from the wound care plan, observing a systematic increase in PhA parameters starting from the values: Patient I -3.2;Patient II -3.3 during the first examination.Subsequently, after 4 and 16 months in the final measurements, the PhA was 5.3° in Patient I and 4.5° in Patient II, which equated to full wound healing, as well as a significant improvement in the nutritional status of the patients compared to the baseline prior to implementing professional care.Conclusions: The assessment of nutritional status should be one of the pillars of a comprehensive examination of a patient with a chronic wound, while also being a determinant of the recovery process.In the cases presented, the correlation between wound condition and the importance played by the PhA can be seen without any doubt.Its increase influences and enhances the regenerative processes within the wound as well as the patient's overall pro-health status.Further studies with a larger group of patients are needed to demonstrate and confirm the multifaceted impact of the use of the above-mentioned indicator in the treatment of chronic wounds.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".