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Scalp Nerve Block and Opioid Consumption in Brain Surgery

The Effect of Pre-incisional Anterior Scalp Block on Intraoperative Opioid Consumption in Adult Patients Undergoing Elective Craniotomy to Remove Tumor: A Prospective Randomized Controlled

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02057367
Enrollment
100
Registered
2014-02-07
Start date
2013-03-31
Completion date
2016-04-30
Last updated
2016-07-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Brain Tumour

Keywords

supratentorial brain tumour, craniotomy

Brief summary

Anterior scalp block with 0.5% plain Marcaine 20 ml. may reduce the intraoperative opioid consumption in neurosurgical patients who undergoing the supratentorial craniotomy compared to those who receive 0.9% normal saline solution (placebo).

Detailed description

Anterior scalp block with 0.5% plain Marcaine 20 ml. may reduce the intraoperative opioid consumption in neurosurgical patients who undergoing the supratentorial craniotomy compared to those who receive 0.9% normal saline solution (placebo). A Prospective Randomized Double Blind Control

Interventions

Anterior scalp block will be done by using 0.5% plain Marcaine 20 ml.

DRUGScalp block with 0.9% normal saline

Anterior scalp block will be done by using 0.9% normal saline 20 ml.

Sponsors

Chiang Mai University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

1. Patients who have supratentorial brain tumor 2. Patients have been scheduled to undergo an elective craniotomy to remove tumor in any surgical position 3. Patients have been general anesthetized with endotracheal intubation and control ventilation 4. Patients who have provided consent for the participation in the research and for the use of their medical record in research

Exclusion criteria

1. Pregnant patients 2. Patients who have a history of local anesthetic allergy and/ or anaphylaxis

Design outcomes

Primary

MeasureTime frameDescription
Intraoperative opioid consumptionDuring the supratentorial craniotomy surgeryThe overall intravenous fentanyl consumption (microgram/ kilogram) during the surgery. The decision to administer fentanyl is guided by the changes of blood pressure and/ or heart rate greater than 20% from baseline level.

Secondary

MeasureTime frameDescription
systolic blood pressure changewithin 5 minutes after skull pin insertionThe maximal systolic blood pressure within the first 5 minutes after skull pin insertion will be recorded. The systolic blood pressure change from baseline will be calculated. The unit is mmHg.
Heart rate changewithin 5 minutes after skull pin insertionThe maximal heart rate within the first 5 minutes after skull pin insertion will be recorded. The heart rate change from baseline level will be calculated. The unit is beats per minute.

Other

MeasureTime frameDescription
extubationend of surgery, before transferring to the intensive care unitThe rate of immediate extubation before transferring to the intensive care unit (ICU) compared between patients who received 0.5% plain Marcaine and 0.9% normal saline solution.

Countries

Thailand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026