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ANI and Remifentanil in Skull Pin Fixation.

Pain, Procedural Clinical Trial

Official title:
To Explore the Optimal Dose of Remifentanil for Skull Pin Fixation in Intracranial Surgery.

Clinical Trial Summary

Forty patients were enrolled, and all patients used total intravenous anesthesia (remifentanil-propofol based total intravenous analgesia) as anesthesia induction and maintenance. According to the preliminary data of this department, patients who underwent intracranial surgery for skull pin fixation used remifentanil 5.0-6.0 ng/ml, while the hemodynamics is relatively stable. Therefore, when this plan is implemented, the patient needs to be under the same depth of anesthesia (monitored by electroencephalography, maintaining a value of 40-60), first start with remifentanil 6.0 ng/ml, and use the up and down method as adjust 0.5 ng/ml of concentration of remifentanil each time. An Analgesia Nociception Index(ANI) lower than 30 and hyperdynamics (the increased heart rate(HR) and mean blood pressure(MBP) up 20% of baseline or HR>100bpm and arterial blood pressure(ABP)>180/100mmHg) indicates insufficient analgesia, therefore increase it by 0.5 ng/ml; an ANI higher than 30 and stable hemodynamics (the changes of HR and MBP within 20% of baseline or HR<50bpm and ABP<90/50mmHg) indicates that analgesia is acceptable, and the next patient will decrease it by 0.5 ng/ml during skull pin fixation. Data collection: Heart Rate, Measure blood pressure, Analgesia Nociception Index, Bispectral index, concentrations of propofol and remifentanil before 2 mins, during, 5, and 15 mins of skull pin fixation were recorded and analyzed.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05125328
Study type Interventional
Source Kaohsiung Medical University Chung-Ho Memorial Hospital
Contact
Status Completed
Phase Phase 4
Start date April 19, 2023
Completion date June 13, 2023
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