Trial reportJournal of clinical monitoring and computing2021
Photoplethysmography-derived approximate entropy and sample entropy as measures of analgesia depth during propofol-remifentanil anesthesia.
Trial report in Journal of clinical monitoring and computing, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The efficacy and safety of remifentanil patient-controlled versus epidural analgesia in labor: A meta-analysis and systematic review.PloS one · 2022Pooled it
- Data Reduction Methodology for Dynamic Characteristic Extraction in Photoplethysmogram.Sensors (Basel, Switzerland) · 2025Article
- Ageing changes the proprioceptive contribution to balance control under different types of mastoid vibration: A cross-sectional study.Experimental physiology · 2025Article
- Comparison of Cerebral Blood Flow During General Anesthesia in Elderly Patients with and Without Dementia: A Prospective Controlled Clinical Trial.Journal of clinical medicine · 2025Article
- The Evaluation of Reference Values of Plasma and Effect-Site Concentrations of Propofol and Remifentanil During Extubation in Patients Who Had Hysteroscopy Procedures.Journal of pain research · 2025Article
- Article
- Analysis of the Chaotic Component of Photoplethysmography and Its Association with Hemodynamic Parameters.Entropy (Basel, Switzerland) · 2023Article
- Low-intensity transcranial ultrasound stimulation modulates neural activities in mice under propofol anaesthesia.BMC neuroscience · 2023Article
- The sex effect on balance control while standing on vestibular-demanding tasks with/without vestibular simulations: implication for sensorimotor training for future space missions.Frontiers in physiology · 2023Article
- Photoplethysmography temporal marker-based machine learning classifier for anesthesia drug detection.Medical & biological engineering & computing · 2022Article
- Cerebral Tissue Oxygen Saturation Correlates with Emergence from Propofol-Remifentanil Anesthesia: An Observational Cohort Study.Journal of clinical medicine · 2022Article
- A Novel Hybrid Approach for Partial Discharge Signal Detection Based on Complete Ensemble Empirical Mode Decomposition with Adaptive Noise and Approximate Entropy.Entropy (Basel, Switzerland) · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
The ability to monitor the physiological effect of the analgesic agent is of interest in clinical practice. Nonstationary changes would appear in photoplethysmography (PPG) during the analgesics-driven transition to analgesia. The present work studied the properties of nonlinear methods including approximate entropy (ApEn) and sample entropy (SampEn) derived from PPG responding to a nociceptive stimulus under various opioid concentrations. Forty patients with ASA I or II were randomized to receive one of the four possible remifentanil effect-compartment target concentrations (Ce
Indexed as
Identifiers
32026257What OpenQuestion holds
Registered trials
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.