Active clinical trials for "Pain, Postoperative"

This is a Phase 2b, randomized, double blind, placebo and active controlled study with an Ascending Dose Stage and an optional Dose Expansion Stage in subjects undergoing open inguinal herniorrhaphy with mesh.

The purpose of my study is to test the effect of using piezosurgery and dexamethasone injection in the surgical extraction of impacted mandibular third molars, on Postoperative Pain.

This is a Phase 2, multicenter study in subjects undergoing an open lumbar decompression surgery.

Pain following surgery continues to be an important adverse outcome that may impact postoperative recovery. Opioids like fentanyl and hydromorphone are the primary medications used to provide analgesia, but paradoxically, may actually worsen pain when administered in the operating room. Methadone is a unique opioid which has N-methyl-D-aspartate (NMDA) receptor blocking properties, which may prevent the development of opioid-induced tolerance and hyperalgesia (increased sensitivity to pain induced by a drug). Studies have demonstrated that methadone reduces the need for analgesic medications and decreases pain after surgery. Furthermore, the addition of methadone to a standard anesthetic has been demonstrated to increase patient satisfaction with pain management and reduce the need for opioid analgesic medications during the first month after surgery. Some investigators have described methadone as a "opioid-sparing opioid" and recommended its use as part of a multimodal pain management strategy. There is a growing interest in reducing the use of traditional opioids in the operating room. The aim of this clinical trial is to compare pain scores and analgesic requirements in two groups of patients; one group will be randomized to receive a small dose of methadone at the start of surgery. The other group will be randomized to receive an equal volume of saline (salt water-control group) at the start of surgery. We hypothesize that patients randomized to be administered methadone at the start of surgery will have less postoperative pain and may require lower doses of pain medications than those given saline-control..

Patients undergoing total hip arthroplasty are randomly assigned to two groups (fascia iliaca compartement block [FICB] group or quadratus lumborum block [QLB] group). In the FICB group, ultrasound-guided suprainguinal FICB (30 ml of 0.375% ropivacaine with 75 µg of epinephrine) is performed on the ipsilateral surgical side at the end of surgery. In the QLB group, ultrasound-guided anterior QLB (30 ml of 0.375% ropivacaine with 75 µg of epinephrine) is done on the ipsilateral surgical side at the end of surgery. A standardized multimodal analgesic regimen is used for postoperative pain control. The total use of opioids including patient-controlled analgesia and rescue analgesics is compared in both groups for 24 hours after surgery. The amount of opioids used is compared by conversion to oral morphine equivalent dose. Pain score at rest and movement during postoperative 24 hours, time to first request for analgesics, the incidence of side effects, patient satisfaction for pain control at postoperative 24 hours, quality of recovery at postoperative 24 hours, time to discharge readiness, and hospital length of stay are compared.

Background: Intraoperative wound infiltration with local anaesthetic is commonly used. Apart from the obvious immediate action it has been supported that a possible down regulation of pain receptors may lead to longer effects. Our aim was to compare the use of local anaesthetic versus placebo in order to assess if indeed there is a late beneficial effect. Materials and methods: We will conduct a RCT involving 400 consecutive general surgery patients randomized in 2 groups: Group A= placebo, Group B= wound infiltration with ropivacaine 10%. We will record the preoperative and postoperative pain for the 1st week as well as the type and quantity of the analgesia used during the study period. Hypothesis : patients who receive intraoperatively wound infiltration with local anaesthetic have lower pain during the 1st postoperative week and require less pain killers .

The effect of epidural low-dose morphine-soaked microfibrillar collagen sponge in postoperative pain control after posterior lumbar spinal surgery: a randomized, double-blind, placebo-controlled study

In this study, we wish to investigate the effect of ultrasound (US) -guided block of the saphenous nerve (SN) and the posterior branch of the obturator nerve (ONP) on postoperative pain and the use of opioids (morphine-like pain medicine) in the first 24 hours following ambulatory knee arthroscopy. We wish to investigate the analgesic effect of these two blocks compared to placebo (injection of local anesthetic with known pain blocking properties compared with injection of a saline solution), when used as a supplement to conventional oral analgesics. We hypothesize that patients receiving the active treatment may experience less pain during the first 24 hours after their operation than patients receiving the placebo treatment, and possibly require less opioid analgesics, experience less opioid related side effects and have a higher function level in this period than patients receiving the placebo treatment.

Hip replacement surgery is one of the most common elective surgeries in Canada and with this surgery, there is considerable pain after the operation. By decreasing the amount of pain after surgery, the patients may be able to move and walk quicker, resulting in easier physiotherapy sessions, shorter hospital stays and may help to avoid adverse outcomes like nausea and vomiting and being overly sedated. By using ultrasound guided femoral nerve block, it may be an alternative for pain management with minimal side effects for patients having hip replacement surgery.

Dexmedetomidine has been often used for procedural sedation. It has also has been shown to have a pain sparing effect. Therefore the investigators propose that if Dexmedetomidine is used for sedation in total knee replacements done under spinal anesthetic, the patients will have less pain up to 24 hours after the procedure.