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Time-dependent analysis of dosage delivery information for patient-controlled analgesia services.

Time-dependent analysis of dosage delivery information for patient-controlled analgesia services.
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Kuo IT, Chang KY, Juan DF, Hsu SJ, Chan CT, Tsou MY,


Kuo IT, Chang KY, Juan DF, Hsu SJ, Chan CT, Tsou MY, (click to view)

Kuo IT, Chang KY, Juan DF, Hsu SJ, Chan CT, Tsou MY,

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PloS one 2018 03 1513(3) e0194140 doi 10.1371/journal.pone.0194140
Abstract

Pain relief always plays the essential part of perioperative care and an important role of medical quality improvement. Patient-controlled analgesia (PCA) is a method that allows a patient to self-administer small boluses of analgesic to relieve the subjective pain. PCA logs from the infusion pump consisted of a lot of text messages which record all events during the therapies. The dosage information can be extracted from PCA logs to provide easily understanding features. The analysis of dosage information with time has great help to figure out the variance of a patient’s pain relief condition. To explore the trend of pain relief requirement, we developed a PCA dosage information generator (PCA DIG) to extract meaningful messages from PCA logs during the first 48 hours of therapies. PCA dosage information including consumption, delivery, infusion rate, and the ratio between demand and delivery is presented with corresponding values in 4 successive time frames. Time-dependent statistical analysis demonstrated the trends of analgesia requirements decreased gradually along with time. These findings are compatible with clinical observations and further provide valuable information about the strategy to customize postoperative pain management.

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