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Effects of Pre-emptive Scalp Infiltration With Ketorolac and Ropivacaine for Post-craniotomy Pain

Phase 4
Conditions
Pain
Supratentorial Brain Tumor
Interventions
Registration Number
NCT04141319
Lead Sponsor
Beijing Tiantan Hospital
Brief Summary

The PAINLESS study is a single-center, prospective, randomized, open-label, blinded-endpoint (PROBE) controlled clinical 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.

Detailed Description

The proposed study will be a single-center, prospective, randomized, open-label, blinded-endpoint clinical trial designed to test the hypothesis that the addition of ketorolac to pre-emptive scalp infiltration analgesia can significantly improve analgesia after craniotomies. One hundred participants will be randomized to the ketorolac group or the control group. Patients in the ketorolac group will receive pre-emptive scalp infiltration with opivacaine,ketorolac and epinephrine while patients in the control group will receive pre-emptive scalp infiltration with ropivacaine and epinephrine.The primary outcome measure will be cumulative doses of patient-controlled analgesia (PCA) butorphanol consumption from 0 to 48 h postoperatively.

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
100
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.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
The ketorolac groupKetorolacPatients assigned to the ketorolac group will receive pre-emptive scalp infiltration with 30ml of local infiltration solution containing 60 mg ropivacaine, 6 mg ketorolac and 0.1mg epinephrine.
The ketorolac groupRopivacainePatients assigned to the ketorolac group will receive pre-emptive scalp infiltration with 30ml of local infiltration solution containing 60 mg ropivacaine, 6 mg ketorolac and 0.1mg epinephrine.
The control groupEpinephrineIn the control group, preoperative peri-incisional scalp infiltration will be performed using 30ml of 60 mg ropivacaine and 0.1mg epinephrine.
The control groupRopivacaineIn the control group, preoperative peri-incisional scalp infiltration will be performed using 30ml of 60 mg ropivacaine and 0.1mg epinephrine.
The ketorolac groupEpinephrinePatients assigned to the ketorolac group will receive pre-emptive scalp infiltration with 30ml of local infiltration solution containing 60 mg ropivacaine, 6 mg ketorolac and 0.1mg epinephrine.
Primary Outcome Measures
NameTimeMethod
cumulative doses of patient-controlled analgesia (PCA) butorphanol consumption from 0 to 48 h postoperatively0 to 48 hours postoperatively

The primary outcome measure will be cumulative doses of PCA butorphanol consumption from 0 to 48 h postoperatively

Secondary Outcome Measures
NameTimeMethod
Length of hospital stayLength of hospital stay, an arverage of 2 weeks

Length of hospital stay

numeral rating scale (NRS) Scoreat 2 hours, 4 hours, 8 hours, 24 hours, 48 hours, 72 hours, 1 week, 2 weeks, 1 month, 3 months and 6 months postoperatively

0 for"no pain" and 10 for "'pain as severe as you can imagine"

frequency of pressing patient-controlled analgesia pumpWithin 48hours postoperatively

frequency of patient-controlled analgesia pump

Pain control satisfaction score (PCSS) postoperativelyat 24 hours, 48 hours, 72 hours, 1 week, 1 month, 3 months and 6 months

0 for unsatisfactory and 10 for very satisfactory

Ramsay sedation score (RSS)at 2 hours, 4 hours, 8 hours, 24 hours and 48 hours and 72 hours postoperatively

1: 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 light glabellar 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 light glabellar 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

SpO2

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

MAP

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

HR

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 postoperatively

RR

Wound healing scoreat 3 weeks and 6 weeks after surgery

Skin Healing 1: fully healed; 2: ≤3 cm in total not healed; 3: \>3 cm not healed; 4: areas of necrosis ≤3 cm; 5: areas of necrosis \>3 cm Infection 1: none; 2: ≤0.5-cm margin of redness; 3: more redness or superficial pus; 4: deep infection; not applicable Hair Regrowth 1: even regrowth along wound; 2: ≤3 cm not regrowing; 3: \>3-6 cm not regrowing; 4: \>6 cm not regrowing; not applicable

postoperative nausea and vomiting(PONV)within 48 hours postoperatively

0, absent; 1, nausea but not requiring treatment; 2, nausea requiring treatment; and 3, vomiting

The presence of respiratory depressionwithin 48 hours postoperatively

respiratory rate \<10 breaths per minute or SpO2 was\<90 %

The incidence of haematoma, wound infection or gastric ulcersduring hospitalization, within 2 weeks postoperatively

side effects

The time to first request for patient-controlled analgesia butorphanolWithin 48hours postoperatively

The time to first request for patient-controlled analgesia butorphanol

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