Active clinical trials for "Pain, Postoperative"

After surgery it is normal to experience some pain at the site of operation. In order to reduce the pain, medication such as Morphine is injected into a vein using a Patient Controlled Analgesia (PCA) pump that is kept at bed side, and is activated by the patient when needed. However, Morphine is an opioid drug, which can cause side effects such as sedation, nausea, vomiting, and reduced breathing on prolonged use. In addition to the opioid drugs, local anesthetics, and other drugs called Non steroidal anti inflammatory drugs (NSAIDs) have been injected locally to provide prolonged pain relief without the side effects of morphine. Recently a portable device called ON-Q pump has been developed to continuously infuse the local anesthetic through 2 small catheters inserted at the wound site. The ON-Q Pump is a small tennis ball sized unit made of a soft synthetic material that slowly infuses the drug through the catheters by elastic force. This pump is very safe and is attached to a bedside pole or the patient's hospital gown. This pump has already been approved by the FDA for clinical use, and has been reported to provide effective pain management after some surgical procedures. The primary aim of the present study is to evaluate the relative efficacy of the drugs Ketorolac and Ropivacaine infused through the ON-Q pump in reducing the pain following gynecologic surgery. Ketorolac and Ropivacaine are approved drugs that are frequently used for post operative pain relief. Our hypothesis is that these two drugs in combination will provide better analgesia than Ketorolac alone.

Objective: To determine a minimally effective initial local anesthetic bolus required to provide satisfactory analgesia using continuous brachial plexus infusion following arthroscopic shoulder surgery using a double-blind, randomized, study comparing 3 initial doses.

To assess the analgesic efficacy and general safety of 2 dosing regimens of valdecoxib compared to placebo on the first post-operative day in patients with moderate or severe pain following bunionectomy surgery.

The purpose of this research study is to evaluate the safety and analgesic efficacy of PMI-150 (intranasal ketamine) compared to placebo in patients with acute post-operative pain following orthopedic trauma, injury, or surgery.

The aim of our study is to define the median effective analgesic doses (ED50) of paracetamol, morphine, and their combination and determination the nature of their interaction administered IV for postoperative pain after moderate painful surgery using up-and-down and isobolographic methods.

In previous studies the investigators have seen that the severity of pain one day after cesarean delivery can predict the presence of pain and depression 2 months later. The investigators believe those at risk for severe acute post-partum pain can be identified, and medical interventions can be tailored to manage postoperative pain more effectively.

The purpose of this study is to determine whether the use of a lumbar plexus block for arthroscopic hip surgery is superior to oral and intravenous opioid pain medications alone in treating pain. In addition, the study will examine whether lumbar plexus blocks reduce the total amount of pain medication needed, and therefore reduce the side effects of these medicines and increase patient satisfaction. It is hypothesized that addition of the lumbar plexus block will significantly reduce patients' postoperative pain.

This prospective, double blind, placebo-controlled, parallel group study will be conducted in the first affiliated hospital of Sun yat-sen university in Guangzhou, China. Patients aged 18-65 (ASA I-II) undergoing elective gynecologic laparoscopic surgery with general anesthesia will be involved in this study. According to previous studies and our pilot trial, the sample size was estimated to be 120 subjects. All eligible patients will be randomly assigned to one of three groups: Group A (single parecoxib) receiving parecoxib 40mg at 30min before the end of surgery; Group B (multiple parecoxib) receiving parecoxib 40mg at 30min before the end of surgery, at 8h and 20h after the surgery, respectively, and Group C (Control group) receiving normal saline. All patients will be managed by a standard propofol-remifentanil based total intravenous anesthesia protocol. The incidence and intensity of shoulder pain at rest and with motion will be evaluated by an independent doctor blinding to medication and grouping using visual analog scale (VAS) at 6h, 24h and 48h postoperatively. Other types of pain (e.g. trocar wound and visceral pain), side effects (such as postoperative nausea and vomiting, itching, dizziness, and oversedation) will be assessed as well. At the end of the observation, the intensity of the maximum pain will be recorded, and the effect of shoulder pain on the four variables regarding to quality of life (activity, mood, walking and sleep) will be assessed using modified Brief Pain Inventory(BPI) questionnaire.

Pregabalin added to the standard of care with dosing starting preoperatively and continuing for up to 6 weeks post surgery will decrease the intensity of post-operative pain following total knee replacement.

The purpose of this small study was to investigate the safety and effectiveness of OROS hydromorphone HCI for the treatment of short-term, moderate to severe postoperative pain following total knee replacement surgery.