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NCT06563297

To Explore the Optimal Dose of Alfentanil for Skull Pin Fixation in Intracranial Surgery

Not yet recruiting Phase 4 Last updated 20 August 2024
What this trial tests

Phase 4 trial testing Alfentanil in Procedural Pain in 40 participants. Not yet recruiting.

Timeline
13 August 2024
Primary endpoint
31 December 2024
31 December 2024

Quick facts

Lead sponsorKaohsiung Medical University Chung-Ho Memorial Hospital
PhasePhase 4
StatusNot yet recruiting
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposeprevention
Enrollment40
Start date13 August 2024
Primary completion31 December 2024
Estimated completion31 December 2024
Sites1 location across Taiwan

Drugs / interventions tested

Conditions studied

Sponsor

Kaohsiung Medical University Chung-Ho Memorial Hospital

Who can join

Adults 18 to 80, any sex, with Procedural Pain. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Forty patients were enrolled, and all patients used total intravenous anesthesia (alfentanil-propofol based TIVA) as anesthesia induction and maintenance. According to our experience, patients who underwent intracranial surgery for skull pin fixation used alfentanil 100 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 EEG, maintaining a value of 40-60), first start with alfentanil 100 ng/ml, and use the up and down method as adjust 25 ng/ml of concentration of alfentanil each time. An SPI higher than 80 and hyperdynamics (the increased HR and MBP up 20% of baseline or HR\>100bpm and ABP\>180/100mmHg) indicates insufficient analgesia, therefore increase it by 25 ng/ml at the next patient; an SPI lower than 80 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 25 ng/ml during skull pin fixation. If the analgesia is inadequate, increase alfentanil concentration will be prescribed. On the other hand, if analgesia is adequate, however hyperdynamics was noted, beta blocker or calcium channel blocker will be prescribed. If hypotension (ABP\<90/50 mmHg) or bradycardia (HR\<50 bpm) occur, we first stop alfentanil infusion and treated with ephedrine or atropine, respectively. Data collection: HR, MBP, SPI, BIS, systolic pressure variation (SPV), pulse pressure variation (PPV) , concentrations of propofol and alfentanil before 2 mins, during, 5, and 15 mins of skull pin fixation were recorded and analyzed.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Other trials of Alfentanil

Trials testing the same drug.

Other recruiting trials for Procedural Pain

Currently open trials in the same condition.

Other Kaohsiung Medical University Chung-Ho Memorial Hospital trials

Trials by the same sponsor.

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Data sources for this page

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