Active clinical trials for "Pain, Postoperative"

Total knee arthroplasty may be conducted either under general anesthesia or spinal block. previous studies have shown that spinal block leads to less complications. The investigators aim to find whether post-operative pain is also diminished under spinal block compared to general anesthesia

Two-parallel arm, double-blind, individually randomized controlled trial. Primary endpoint: Fentanyl consumption in the first 48 postoperative hours. Secondary endpoints: Pain at rest, Pain on movement, stay in ICU, Postoperative nausea and vomiting (PONV), sedation, Hemothorax, seizures, arrythmias

The numeric rating scale (NRS), one of the most widely used pain scales in clinical practice, although convenient, is often subject to bias because it requires abstract thinking from both the patient and the evaluator. Compared to numbers, traumatic pain, when visualized appropriately, has potential advantage as a means to indicate and communicate the severity of pain. Given that they are standardized in terms of body parts, wound size, and bleeding volume, illustrations of traumatic pain along with external somatic stimuli that caused it can be used to serve as effective visual anchors to supplement a pain scale by giving more concrete information to the patient. The purpose of this study is to develop Seoul National University Illustrated Pain Scale(SNUIPS) using pictures of traumatic pain, and verify the validity and effectiveness of this scale in comparison with those of NRS.

Two ultrasound guided techniques to give postoperative pain relief to the patients following abdominal surgeries would be compared using scoring systems for pain relief and scientific methods. while one technique is routinely used, other i.e quadratus lumborum has been recently described and relies on posterior deposition of the drug. Both the techniques are safe and ultrasound imaging is to be used for guidance.

Persistent pain and joint stiffness after surgery may interfere with recovery and adversely affect quality of life in up to 40% of patients who have undergone total knee arthroplasty. There is growing evidence that inflammation as well as other medical and psychological factors may be associated with osteoarthritis severity, progression, and associated pain severity. This study aims to identify clinical, biological, and psychological factors that contribute to and predict the development of these complications. Identification of such factors may allow us to target preventative measures to the patients at highest risk of persistent postoperative pain and joint stiffness.

Postoperative pain can be severe after liver resection surgery. However, postoperative pain management may be difficult for this group of patients. Opioidergic neurotransmission may be altered in cirrhotic patients and selectively increasing receptor affinity for opioids. Large dose of strong opioid may be required to achieve adequate pain control. However, this may not be possible due to the side effect of opioid and liver dysfunction after liver resection. Propofol is a commonly used anaesthetic with rapid recovery and less side effects and TIVA (total intravenous analgesia) with propofol is a common technique now. The reduction on certain serum pro- inflammatory cytokines may lead to more smooth post- surgical recovery. Recent case report proved the analgesic effect of propofol infusion. However other animal and clinical studies showed controversial result. The aim of this retrospective study is to investigate the postoperative analgesic effects and side effects of intraoperative TIVA with propofol in patient undergoing liver resection surgery at Queen Mary Hospital, Hong Kong between 2010 to 2012.

This project seeks to evaluate the effectiveness of a new post-operative pain relief program for women who have undergone uterine artery embolisation (UAE). UAE is performed by an interventional radiologist as a treatment of uterine fibroids (non-cancerous growths of the uterus.) UAE can be associated with a high level of post-procedural pain and it is the purpose of this study to evaluate a new relief regimen for dealing with this acute pain. There will be two treatment groups into which patients will be randomly assigned. One will receive the current post-operative therapy (dose-on-demand) and the other will receive the new therapy (pre-emptive dosing). Otherwise patients will receive standard management protocol for this procedure. Only patients that are scheduled for UAE will be enrolled (up to 40 patients). The new treatment involves giving the patient their morphine dose orally and sixty minutes before the procedure begins (pre-emptive dosing) as opposed to current standard treatment which involves giving the patient a dose of morphine intravenously once they feel pain. Information to be collected directly from patients includes pain and nausea levels, indicated on a visual scale (a 10 centimetre line showing a spectrum of no pain to worst pain imaginable) as well as their opinions of the effectiveness of the pain relief program and the procedure itself. This information is to be collected immediately post-procedure and at 2, 4, 6 and 24 hours post procedure. Each VAS will take the patient approximately 20 seconds to complete. Information about concurrent medication and procedure complications, post-operative vomiting and respiratory depression will be collected from the patient's history.

This study aims to evaluate the psychometric validity of FASS (Facial Summary Score Scale) to assess postoperative children pain.

The purpose of this study is to evaluate the postoperative pain after general anesthesia of orbital diseases and ocular tumor patients.

The aim of the current pilot study is to investigate whether perioperative dysregulated systemic lipid mediator pathways (more specifically increased pro-inflammatory and decreased anti-inflammatory pathways) are associated with slower resolution of pain after surgery and increased risk for development of persistent postsurgical pain (PPSP). In addition, we will look for correlations between the pro-resolving lipid mediator profile and Quality of Recovery (QoR-15), duration of hospital stay, and frequency of complications, e.g. wound infections.