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Effects of Pre-emptive Scalp Infiltration With Low-dose Ketorolac and Ropivacaine for Postoperative Pain

Effects of Pre-emptive Scalp Infiltration With Low-dose Ketorolac and Ropivacaine for Postoperative Pain Relief After Elective Supratentorial Craniotomy (PAINLESS): a Randomized Controlled Pilot Trial

Status
UNKNOWN
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04380298
Acronym
PAINLESS
Enrollment
40
Registered
2020-05-08
Start date
2020-12-01
Completion date
2021-08-31
Last updated
2020-09-09

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

Conditions

Pain, Supratentorial Brain Tumor

Keywords

Pre-emptive Scalp Infiltration, Ketorolac, Postoperative Pain, Supratentorial Craniotomy, A pilot Study

Brief summary

The PAINLESS study is a single-center, prospective, randomized, open-label, blinded-endpoint (PROBE) controlled clinical pilot study to compare the efficacy and safety of pre-emptive scalp infiltration with ropivacaine plus ketorolac and ropivacaine alone for postoperative pain relief in adults undergoing elective supratentorial craniotomies.

Interventions

DRUGKetorolac

30ml of local infiltration solution containing 60mg ropivacaine

DRUGRopivacaine

30ml of local infiltration solution containing 6mg ketorolac

DRUGEpinephrine

30ml of local infiltration solution containing 0.1mg epinephrine

Sponsors

Beijing Tiantan Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Scheduled for elective supratentorial tumour resection; * Planned general anaesthesia; * American Society of Anesthesiologists (ASA) physical status I - II; * Age ranging from 18 to 65 years old; * Participates required to fix their head in a head clamp intraoperatively; * Participates with an anticipated awake within 2 hours after surgery.

Exclusion criteria

* Allergy/intolerance to study drugs including anesthetic drugs, ketorolac and epinephrine; * Expected delayed extubation or no plan to extubate; * History of neurosurgeries; * Long-term use of analgesics and sedatives (more than 2 weeks) * Receiving any painkiller within 24 h before the operation; * Extreme body mass index (BMI) (less than 15 or more than 35); * Patients with impaired cardiopulmonary; * Patients with impaired renal function; * Patients with impaired hepatic function; * History of chronic headache; * Patients with cognitive deficit; * Patients with intellectual disability; * Patients with uncontrolled epilepsy; * Patients with psychiatric disorders; * Difficulties in using PCA device * Difficulties in understanding the use of numeral rating scale (NRS) ; * Patients with suspected intracranial hypertension; * Pregnant or at breastfeeding; * Infection at the incisional site; * History of radiation therapy and chemotherapy preoperatively * With great likelihood of postoperative radiation therapy and chemotherapy based on preoperative imaging.

Design outcomes

Primary

MeasureTime frameDescription
cumulative doses of patient-controlled analgesia (PCA) sufentanil consumption0 to 48 hours postoperativelycumulative doses of patient-controlled analgesia (PCA) butorphanol consumption from 0 to 48 h postoperatively The primary outcome measure will be cumulative doses of PCA butorphanol consumption from 0 to 48 h postoperatively

Secondary

MeasureTime frameDescription
frequency of pressing PCA pumpWithin 48hours postoperativelyfrequency of pressing PCA pump
numeral rating scale (NRS) Scoreat 2 hours, 4 hours, 8 hours, 24 hours, 48 hours postoperatively0 forno pain and 10 for pain as severe as you can imagine
Pain control satisfaction score (PCSS) postoperativelyat 24 hours and 48 hours post-operation0 for unsatisfactory and 10 for very satisfactory
Ramsay sedation score (RSS)at 2 hours, 4 hours, 8 hours, 24 hours and 48 hours postoperatively1: Anxious, agitated, restless; Ramsey 2: Cooperative, oriented, tranquil; Ramsey 3: Responsive to commands only If Asleep; Ramsey 4: Brisk response to light glabellar tap or loud auditory stimulus; Ramsey 5: Sluggish response to lightglabellar tap or loud auditory stimulus; Ramsey 6: No response to light glabellar tap or loud auditory stimulus.Asleep; Ramsey 4: Brisk response to light glabellar tap or loud auditory stimulus; Ramsey 5: Sluggish response to lightglabellar tap or loud auditory stimulus; Ramsey 6: No response to light glabellar tap or loud auditory stimulus.
pulse oxygen saturation(SpO2)1 minutes before anesthesia induction, 1 minutes after anesthesia induction, 1 minutes after scalp infiltration, at the beginning of skull drilling, mater cutting and skin closure and at 2hours, 4 hours, 8 hours , 24 hours and 48 hours postoperatively
mean arterial blood pressure(MAP)1 minutes before anesthesia induction, 1 minutes after anesthesia induction, 1 minutes after scalp infiltration, at the beginning of skull drilling, mater cutting and skin closure and at 2hours, 4 hours, 8 hours , 24 hours and 48 hours postoperatively
The time to first request for PCA sufentanil0 to 48 hours postoperativelyThe time to first request for patient-controlled analgesia
respiratory rate(RR)1 minutes before anesthesia induction, 1 minutes after anesthesia induction, 1 minutes after scalp infiltration, at the beginning of skull drilling, mater cutting and skin closure and at 2hours, 4 hours, 8 hours , 24 hours and 48 hours postope
Length of hospital stayLength of hospital stay, an arverage of 2 weeks
postoperative nausea and vomiting(PONV)within 48 hours postoperatively
The presence of respiratory depressionwithin 48 hours postoperativelyrespiratory rate \<10 breaths per minute or SpO2 was\<90 %
The incidence of haematoma, wound infection or gastric ulcersduring hospitalization, within 2 weeks postoperativelyside effects
heart rate(HR)1 minutes before anesthesia induction, 1 minutes after anesthesia induction, 1 minutes after scalp infiltration, at the beginning of skull drilling, mater cutting and skin closure and at 2hours, 4 hours, 8 hours , 24 hours and 48 hours postoperatively

Contacts

Primary ContactFang Luo, M.D
13611326978@163.com+8613611326978
Backup ContactYitong Jia, M.D
13811109032@163.com+8613811109032

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026