View clinical trials related to Chronic Postsurgical Pain.
Filter by:Chronic postsurgical pain (CPSP), which is one of the most common and serious long term complication of surgery，occurs in approximately 10% of patients after a surgical procedure. Craniotomy was previously considered to have less chronic pain than other surgical procedures. Contrarily, studies have reported incidences of chronic headache varies for type of craniotomy, ranging from 23% to 34% at three months and 12% to 16% at one year after surgery. In addition，CPSP is associated with adverse events, including postoperative morbidity, increased health-care costs, significant impaired on quality of life, prolonged opioid use. Optimising perioperative pain management should reduce the incidence of CPSP; The non-opioid analgesics, such as ketamine and pregabalin, have also been used as components of multimodal anesthetic protocols. Postoperative pain scores and opioid use are significantly reduced in thoracotomy surgical patients given ketamine and pregabalin compared to control groups.however, there is currently a lack of evidence regarding which therapeutic options are most effective in reducing the incidence of chronic post-craniotomy headache. The investigators hypothesis is that sketamine combined with pregabalin reduces significantly chronic postoperative pain after craniotomy and improves patient outcome.
The study utilizes a 3-arm placebo-controlled RCT to study the effectiveness of ketamine in reducing chronic post-mastectomy pain. Participants randomized to the first arm will receive a 0.35 mg/kg dose after induction, followed by a 0.25 mg/kg/hr infusion during surgery (up to a maximum of 6 hours) and continued for 2 hours postoperatively. Participants in the second arm will receive a single dose of 0.6 mg/kg of ketamine in the post-anesthesia care unit, and the final group will serve as the control group and receive saline (no ketamine).
Chronic persistent post-surgical pain (CPSP) is defined as pain at or near the site of surgery persisting for 3 months or more after the date of surgery. The incidence CPSP in Europe is up to 50% at 3 months and 12% at 12 months, but the incidence varies depending on surgical procedure [Fletcher D et al]. In Breast surgery, one of the most commonly performed surgical procedures for cancer [Kehlet H et al], CPSP has been observed in 20-30% of patients at 6 months after surgery, making this group among the highest risk of developing CPSP [Spivey TL et al & Weiser TG et al]. Clinical developments that could mitigate the development of CPSP after breast cancer surgery would potentially yield multiple benefits in terms of reducing future healthcare utilization, associated costs [Spivey Tl et al], and improving their physical and mental health. Several predictive factors for CPSP have been identified, the most important being chronic pre-operative pain, high intensity of acute postoperative pain, and several psychological factors [Vranceanu A-M et al]. Of these psychological factors, pain catastrophizing has emerged as one of the strongest predictors of pain severity and disability among individuals with a range of pain presentations and CPSP [Leung L & Wade Jb & Wildeman TH]. Catastrophizing is described as a maladaptive psychological coping strategy involving an exaggerated reaction to anticipated or actual pain. It can involve mental rumination, magnification of the perceived danger or threat associated with pain, and feelings of helplessness in relation to what can be done [Leung L et al]. A recent systematic review on psychological interventions undergoing major elective abdominal surgery concluded catastrophization can have a direct influence on the neuropathophysiological mechanisms underlying pain experiences and can improve pain and psychological outcomes, after surgery [Villa G et al]. In recent years, there has been a growing number of studies investigating the potential impact of perioperative psychological interventions in a variety of patient groups. A recent systematic review and meta-analysis of observational studies concluded that psychological predictors may have a significant association with chronic postsurgical pain, including catastrophization, although this conclusion is limited by the heterogeneity of study designs and methods used [Giusti et al]. To our knowledge, no randomized controlled trial has been done to date, investigating the influence of perioperative psychological interventions on CPSP in patients undergoing breast cancer surgery.
This research will be a prospective single-centre observational cohort study in Denmark spanning approximately one year. The objective of this study is to develop a clinically applicable and generalizable prediction model for postsurgical pain in adults.
This study would compare acute and chronic postsurgical pain in patients underwent thoracic surgery with different anesthesia and analgesia methods, and explore the influencing factors.
Previous studies have shown that chronic pain after hysterectomy is common. The aim of this study is to investigate the incidence of chronic pain after vaginal or laparoscopic hysterectomy for benign reasons. The aim of this prospective study is also to study the role of anesthetics, surgery and other possible predictors for pain 6 months after hysterectomy.