This study is a further observation and follow-up of the patients enrolled in the registration number NCT04295330 to further evaluate the effect of long-term infusion of lidocaine on postoperative chronic pain, long-term quality of life and survival rate in patients undergoing liver cancer surgery.
This study is a further observation and follow-up of the patients enrolled in the registration number NCT04295330 to further evaluate the effect of long-term infusion of lidocaine on postoperative chronic pain, long-term quality of life and survival rate in patients undergoing liver cancer surgery. 272 patients with primary liver cancer who meet the inclusion criteria are included. According to the random number, the patients are divided into lidocaine group and conventional analgesia group.In the lidocaine group, a bolus injection of lidocaine 1.5 mg/kg, given as an infusion over 10 minutes, followed by a continuous infusion of lidocaine at 1.5 mg/kg per hour for the whole surgical procedure and will be discontinued at the end of surgery. Postoperative pain management during the first 72 postoperative hours will involve the use of a PCIA device, which will contain lidocaine , sufentanil , granisetron diluted to 200 mL in 0.9 % normal saline. In the placebo group, the same volume of normal saline instead of lidocaine will be administered. Blood samples will be drawn immediately after the bolus infusion of lidocaine, at the end of surgery, and 24 hours after surgery to measure plasma lidocaine concentrations. Blood samples will also be collected at 24 hours after surgery for subsequent measurement of inflammatory factors. Numeric rating scale(NRS) is used to evaluate pain at rest and light activities at postoperative 24, 48, 72 hours. The recovery time of postoperative gastrointestinal function, length of hospital stay, and the incidence of lidocaine toxicity within postoperative 72 hours will be recorded. Follow-up after discharge includes chronic pain, the impact of chronic pain on quality of life, the relapse-free survival and overall survival from postoperative 3 months to 5 years.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
260
In the lidocaine group, at the end of the induction of general anesthesia, a bolus injection of lidocaine 1.5 mg/kg, calculated using the patient's ideal body weight and given as an infusion over 10 minutes, followed by a continuous infusion of lidocaine at 1.5 mg/kg per hour for the whole surgical procedure and will be discontinued at the end of surgery. Postoperative pain management during the first 72 postoperative hours will involve the use of a PCIA device, which will contain lidocaine 30mg/kg, sufentanil 2 μg/kg, granisetron 12 mg diluted to 200 mL in 0.9 % normal saline.
In the placebo group, the same volume of normal saline will be administered during anesthesia. The postoperative PCIA device will contain sufentanil 2 μg/kg, granisetron 12 mg diluted to 200 mL in 0.9% normal saline solution with a total volume of 200 ml.
West China Hospital
Chengdu, Sichuan, China
RECRUITINGThe incidence of chronic pain at 3 months postoperatively
Chronic pain is defined as pain that lasts or recurs for longer than 3 months. For chronic postsurgical pain(CPSP), it mainly refers to the pain that persists past normal healing time. Pain scoring is performed at 3 months using the Numerical Rating Scale(NRS), with 11 digits ranging from 0 to 10 indicating the degree of pain,0 indicating no pain, and 10 indicating severe pain. Subjects choose a number to indicate the degree of pain based on their personal pain experience. The impact of chronic pain on the quality of life is also assessed by Brief Pain Inventory score.
Time frame: 3 months postoperatively
The incidence of chronic pain at 6 months ,1 year,3 year and 5 year postoperatively
Chronic pain is defined as pain that lasts or recurs for longer than 3 months. For chronic postsurgical pain(CPSP), it mainly refers to the pain that persists past normal healing time. Pain scoring is performed at 3 months using the Numerical Rating Scale(NRS), with 11 digits ranging from 0 to 10 indicating the degree of pain,0 indicating no pain, and 10 indicating severe pain. Subjects choose a number to indicate the degree of pain based on their personal pain experience. The impact of chronic pain on the quality of life is also assessed by Brief Pain Inventory score.
Time frame: 6 months, 1 year and 3 year postoperatively
The levels of inflammatory factors at 24 hours after surgery
Peripheral blood TNF-α, CXCL10, cytokines IL-6, three tumor progressions and metastasis-related markers (VEGF-A,MMP-3, MMP-9,MMP-2) etc. are measured 24 hours after operation.
Time frame: 24 hours postoperatively
The incidence of moderate to severe pain at 24, 48 and 72 hours after surgery at rest and during movement;
The pain is evaluated using numerical rating scale(NRS). NRS scores range from 0 to 10 points, with 0 points representing no pain, 1-3 points representing mild pain, 4-6 points representing moderate pain, 7-9 points representing severe pain and 10 points.
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Time frame: At 3 days after surgery
The cumulative morphine consumption at 24, 48 and 72 hours postoperatively
Intraoperative and postoperative opioid use is reported as morphine milligram equivalents, calculated using the Practical Pain Management calculator.
Time frame: At the end of the surgery,24,48 and 72 hours after surgery
The incidence of a composite of postoperative pulmonary complications during
defined as positive if any component developed before discharge after surgery; These complications included respiratory infection, respiratory failure, pleural effusion, atelectasis, pneumothorax, bronchospasm, or aspiration pneumonitis loading dose, immediately after the end of surgery, and at the first 24 hours after surgery.
Time frame: during the period from the end of surgery to discharge
Length of hospital stay
determined by the number of days from admittance to discharge.
Time frame: during the period from the end of surgery to discharge
Plasma lidocaine concentration immediately after loading,after surgery and 24-hours postoperatively
Plasma lidocaine concentration is an important indicator for evaluating the safety of the drug during use.
Time frame: Immediately after bolus, after surgery and 24-hour postoperatively
The incidence of lidocaine toxicity within 72 hours after operation
Lidocaine toxicity mainly includes neurological manifestations such as dizziness, tinnitus, convulsions, cardiac manifestations such as bradycardia, new severe atrioventricular block and so on.
Time frame: within 72 hours after operation
Overall survival after surgery
Overall survival is defined as the time between the date from surgery to the date of death.
Time frame: 6 months, 1 year, 3 years, 5 years postoperatively
Recurrence-free survival after surgery
Postoperative re-examination is based on the diagnosis of enhanced CT, MRI, ultrasound or blood examination to determine whether the patient has recurrence and metastasis. Recurrence-free time refers to the time from surgery to tumor recurrence based on the above CT, MRI, etc.
Time frame: 6 months, 1 year, 3 years, 5 years postoperatively
Disability-free surviva survival
Patient self-assessment is carried out by using the World Health Organization(WHO) Disability Scale, with a minimum score of 12 points and a maximum score of 60 points. The lower the score, the higher the quality of life.
Time frame: 6 months, 1 year, 3 years, 5 years postoperatively