View clinical trials related to Pain.
Filter by:Objective: This study was conducted to explore the possible correlation between some gene related to pain sensation and individual basal pain perception and postoperative pain intensity in the general population. Methods: Patients receiving elective surgery under general anesthesia were recruited into this study. The investigators measured their preoperative pressure pain threshold (PPT) and pressure pain tolerance (PTO). Pain intensity at rest and movement after the operation was evaluated . And the PCA drug consumption were recorded. Also there were healthy college students volunteer be recruited into this study. The investigators measured their experimental pain sensitivity including pressure pain threshold (PPT) and pressure pain tolerance (PTO), etc. Then genotyping was carried out.
Background: Few studies have addressed the situation of procedural pain and the use of preemptive analgesia for turning in patients under mechanical ventilation. Aim: Evaluation effect of preemptive fentanyl on the incidence of pain during turning maneuvers in critically ill patients under mechanical ventilation. Design: Single-center clinical trial, national, randomized, double-blind, with a parallel group, and two arms of treatment: saline placebo and fentanyl. Primary Endpoint: Incidence of pain during the turning procedures that are carried out by nurses measured by means of the Behavioral Pain Scale (BPS). Study Population: Critically ill patients, age > 18 years, admitted to ICU and expected to require mechanical ventilation for at least 24 h. Sample Size: 80 patients divided into the two groups (40 patients each). Statistical Analysis: A preliminary descriptive analysis will be carried. Later, results of primary end point will be comparing after the eventual corrections of corresponding variables using a multivariable approach. The AUC variable will be analyzed by a t-test for unpaired data. A second analysis using a multivariate approach will be carried out for those factors considered as clinically relevant in relation to pain and therefore a logistic regression will be used. Ethical Considerations: The study will be strictly conducted following the Declaration of Helsinki and the protocol and Standard Operating Procedures (SOPs) to ensure compliance with the Good Clinical Practice (GCP) standards. It is the responsibility of the researcher to obtain the valid informed consent from the guardian / legal representative, as the patient's condition will not allow to consent. Before obtaining the consent the investigator will explain to each guardian / legal representative the nature of the study, its purpose, the procedures, the estimated duration, the potential risks and benefits associated with the participation, as well as any inconvenience that this may involve. Duration of Treatment: The treatment has a maximum duration of 60 min for each patient. The follow-up includes visits and has duration of 6 consecutive days. Safety Assessment: Potential side effects of treatments will be recorded. Frequent adverse effects of fentanyl administration include respiratory depression, apnea, muscle rigidity, bradycardia and transient hypotension.
This is a pilot study designed to collect preliminary data on safety and efficacy of transcranial direct current stimulation (tDCS) to relieve pain in cancer patients who developed neuropathic pain in the affected area after a surgical intervention, radiation therapy, or chemotherapy to treat the disease.
Acupuncture is used extensively by patients worldwide for a variety of illnesses. While research is beginning to show effectiveness in clinical pain, the mechanisms underlying how these effects are evoked are poorly understood. Experimental models in healthy human volunteers can more closely control the variables of acupuncture needling and begin to separate out the relative contribution of specific components of needling and needle stimulation. By examining acupuncture's effects on experimental inflammatory models with well-characterized physiologic mechanisms, hypotheses can begin to be generated regarding how acupuncture produces its clinical effects. We propose to establish a model which could be used as a template to examine the individual components contributing to acupuncture's clinical effects on inflammation and pain. We hypothesize that acupuncture will have analgesic and anti-inflammatory effects on a ultraviolet B induced cutaneous lesion as well as a model of heat pain testing which activates central sensitization. Twenty healthy human volunteers will participate in a crossover study with active acupuncture and sham acupuncture interventions. They will be tested for their minimal erythemal dose (MED) to ultraviolet B exposure. An experimental lesion at 3x MED will be administered on the lower leg. Background information will be collected which could affect individuals' sensitivity to pain such as anxiety and depression, as well as their expectations regarding acupuncture treatment. The following day they will return for the first experimental day. A measurement with Laser Doppler will quantify the inflammation in the ultraviolet B lesion. Heat pain testing will be performed using a computer controlled thermode both on and off the ultraviolet B lesion. On-lesion testing will be for heat pain threshold. Off-lesion testing will examine temporal summation of heat pain. Next, a licensed acupuncturist will perform either true electroacupuncture or sham electroacupuncture in the region adjacent to the ultraviolet B lesion. Participants are blinded to the intervention, as is the examiner collecting data. Afterwards, Laser Doppler and heat pain testing will be repeated. The difference between pre-acupuncture and post-acupuncture measurements will represent the acupuncture -induced analgesic and anti-inflammatory effects. Participants will return for another ultraviolet B exposure adjacent to the first, and will receive whichever sham or true acupuncture intervention was not performed on the first study day.
Opioid Dependent Patients who have failed back surgery syndrome are detoxified and treated with a neuropsychoanalytic paradigm.
Recent studies have focused on the role of endogenous opioids on central sensitization. Central sensitization is known to be impaired or altered in chronic pain conditions, as fibromyalgia or chronic tension headache. Animal studies have shown reinstatement of mechanical hypersensitivity following naloxone administration after resolution of an injury. This suggests latent sensitization. In the present study, investigators hypothesize that naloxone (2 mg/kg) can reinstate secondary hyperalgesia 168 hours after a first-degree burn-injury. Investigators aim therefore to show that latent sensitization is present in humans and is modulated by endogenous opioids.
Pain affects up to 30% of the general population. In particular, neuropathic pain (NeP) is caused by lesion or desease affecting peripheral or central somatosensory pathways and affects 7% of the adult population. Despite the availability of evidence based pharmacological and surgical treatment for NeP, about 50% of patients remais symptomatic despite best medical treatment. Some neuropathic pain syndromes are specially refractory. In particular, central NeP is caused by disease or lesion to central structures involves in somatosensory integration of nociceptive information is non-responsive to drugs usually employed in other NeP syndromes. Classical neuromodulatory techniques such as conventional repetitive Transcranial Magnetic Stimulation aiming at the motor of prefrontal cortices are ineffective to relieve pain in this population. Recently new technology advances have made possible non-invasive stimulation of deeper cortical targets. Some of them are activelly involved in the integration of the perception of pain, such as the anterior cingulate cortex or the posterior insula. The aim this study is to treat 90 patients with central pain (post stroke pain, spinal cord lesions after trauma or demyelinizating diseases) under best medical pharmacological treatment in three different conditions: AAC (n= 30 with the H-Coil), Superior Posterior Insula (SPI) n=30 cooled double cone coil double cool coil, and sham(n=30). Each patients will undergo daily stimulation for a week, then weekly stimulations for 3 months (total of 17 sessions). The main study outcome is pain relief at the last stimulation week (visual-analogic scale). Secondary end-points are changes in the McGill Pain Questionnaire, Neuropathic Pain Symptom Inventory, DN4 questionnaire, SF -36, brief pain inventory and cognitive assessment including the trail making test A and B, Strrop color interference test, and subscalles from the CERAD. All patients will undergo quantitative sensory test and measurements of cortical excitability over M1 before and after to treatment.
RESEARCH HYPOTHESIS-In preterm neonates during heel lance oral 25% glucose is more efficacious in reducing pain as compared to oral 24% sucrose when assessed by PIPP(Premature infant pain profile)
This randomized clinical trial studies a cognitive-behavioral intervention to treat worry, uncertainty, and insomnia in cancer survivors. Counseling may reduce anxiety and insomnia as well as improve the well-being and quality of life of cancer survivors. This study also explores the neuro-immunologic correlates of anxiety and insomnia.
The aim of this study was to investigate the analgesic efficacy of dexmedetomidine administration in wound infiltration for total abdominal hysterectomy.