randomized placebo controlled study to treat post operative pain

BACKGROUND: Pre-emptive analgesia in perioperative care has potential benefits for patients. The pre-emptive and postoperative analgesic effects of the cyclooxygenase-2 inhibitor etoricoxib have been investigated using a 2 × 2 factorial trial design. METHODS: According to the 2 × 2 factorial study design, 103 patients scheduled for visceral surgery, were randomly allocated to two groups prior to surgery. Patients could receive either etoricoxib or placebo (to investigate pre-emptive analgesia)...

BACKGROUND: We evaluated the analgesic effect of ropivacaine infiltration into the surgical wound after caesarean section. METHODS: In a double-blind trial, 67 patients who were scheduled for caesarean section under spinal anaesthesia were randomly assigned to receive either 0.75% ropivacaine or placebo (NaCl 0.9%) through a multi-orifice catheter that was placed into the surgical wound, between the muscle fascia and the subcutaneous tissue. The study drug was administered as a bolus of 10 ml at the end of the operation, followed by an infusion at 2 ml/h for 48 h...

OBJECTIVE: To study the effectiveness of sublingual misoprostol for cervical ripening before MVA in women aged between 35 and 55 years old. MATERIAL AND METHOD: Women aged between 35 and 55 years old who had indications for endometrial sampling were recruited. Exclusion criteria were gross pathology of cervix, pregnancy, allergy to misoprostol, and abnormal coagulopathy. Eighty women who had indication for MVA were then assigned by randomization (block of four)...

To determine the effectiveness of dexamethasone to reduce pain, nausea and vomiting after septoplasty. Study is a prospective double-blind randomized controlled trial. A total of 90 patients were enrolled and received an either of dexamethasone or placebo in the induction of anesthesia. The patients were asked to note the level of pain on the visual analogue scale in the first 24 h after surgery. They also had to record their severity of nausea and number of vomiting attacks. There were statistically significant differences between the two groups for the level of pain noted on the visual analogue scale...

INTRODUCTION: Postoperative pain as an important medical concern is usually treated by opioids which also are of various inevitable side effects. The aim of this study was to assess the efficacy of multimodal preincisional premedication on preventing post-cholecystectomy acute pain. METHODS: In a randomized clinical trial, sixty patients undergoing open cholecystectomy were randomized into two groups. Before anesthesia induction, Diclofenac suppository (100 mg) and oral Clonidine (0...

BACKGROUND: Perioperative intravenous (IV) infusion of lidocaine has been shown to decrease post-operative pain, shorten time to return of bowel function, and reduce the length of hospital stay. This randomized, prospective, double-blinded, placebo-controlled clinical trial evaluated the impact of IV lidocaine on the quality of post-operative analgesia and other outcomes after hand-assisted laparoscopic colon surgery. METHODS: Sixty four patients with colon cancer scheduled for elective colon resection were involved in this study...

PURPOSE: The purpose of this study was to evaluate the outcomes of arthroscopy-guided direct suprascapular nerve block performed after arthroscopic rotator cuff repair. METHODS: In the present prospective, randomized, double-blinded clinical study, 30 patients were divided into two groups: 15 patients (group I) were treated with arthroscopy-guided suprascapular nerve block using 10 mL 0.5 % ropivacaine with 1:200,000 epinephrine, and 15 patients (group II) were treated with placebo using 10 mL 0...

BACKGROUND: Although the literature suggests that non-steroidal anti-inflammatory drugs (NSAIDs) are effective in controlling post-operative pain in the paediatric population, physicians have been reluctant to utilise these medications after tonsillectomy due to concerns of increased bleeding rates. While many surgeons prescribe opioid analgesics postoperatively, these are associated with a number of potential adverse side-effects including nausea, vomiting, constipation, excessive sedation and respiratory compromise...

INTRODUCTION: Gabapentin is increasingly being used for the treatment of postoperative pain and a variety of psychiatric diseases, including chronic anxiety disorders. Trials have reported mixed results when gabapentin has been administered for the treatment of preoperative anxiety. We tested the hypothesis that gabapentin 1,200 mg vs placebo would reduce preoperative anxiety in patients who exhibit moderate to high preoperative anxiety. METHODS: A blinded randomized controlled trial was conducted from September 2009 to June 2011 at the Toronto General Hospital...

OBJECTIVES: To compare the efficacy of a single dose of topical diclofenac 0.1% and ketorolac 0.5%, with placebo and with each other in the prevention of post-PRK pain and discomfort. METHODS: In this randomized double-masked trial, adults undergoing bilateral PRK surgery were assigned to two arms. The first arm received a single dose diclofenac 0.1%, randomly in either the right, or left eye, and artificial tear (as the placebo) in the other eye. The second arm received ketorolac 0...

BACKGROUND: Propofol is one of the widely used intravenous (i.v.) anaesthetics, although pain on injection still remains a considerable concern for the anaesthesiologists. A number of techniques has been tried to minimize propofol-induced pain with variable results. Recently, a 5-HT(3) antagonist, ondansetron pre-treatment, has been shown to reduce propofol-induced pain. The aim of our randomized, placebo-controlled, double-blinded study was to determine whether pre-treatment with intravenous granisetron, which is routinely used in our practice for prophylaxis of post-operative nausea and vomiting, would reduce propofol-induced pain...

BACKGROUND: Surface electromyographic (sEMG) study of post-tonsillectomy swallow-evoked muscular reactions was performed in order to evaluate the efficacy and safety of oxycodone and dexamethasone in pain management after tonsillectomy. MATERIAL/METHODS: 90 randomly chosen operated adults were divided into three groups. Group 1 (n = 30) was treated with OxyContin (Oxycodone) injections; Group 2 (n = 30) was treated with Dexacort (Dexamethasone), and Group 3 (n = 30) was a placebo group...

BACKGROUND: This study investigates preliminary investigations that a pre-emptive analgesia administration may reduce post-extraction pain. AIM: This prospective, placebo-controlled, randomized, double-blind trial was planned to compare the efficacy of the pre-emptive administration of ibuprofen, paracetamol, and placebo in reducing post-extraction pain in children. DESIGN: Forty-five children, ages 6-12, who needed primary mandibular molar tooth extraction were treated in paediatric dental clinics, with treatment preceded by local anaesthesia and analgesic drugs during the preoperative period...

INTRODUCTION: Surface electromyographic (sEMG) study of post-tonsillectomy swallow-evoked muscular reactions was performed to assess analgesic properties of dexamethasone. METHODS: Sixty randomly chosen operated adults were divided into 2 groups. Group 1 (n = 30) was treated with dexamethasone (Dexacort, 20 mg); group 2 (n = 30) was treated with placebo. Pain assessment included visual analogue scale (VAS) pain score and the EMG data such as the timing, electric amplitude and graphic patterns of muscular activity during deglutition...

BACKGROUND: The efficacy of selective cox-2 inhibitors in postoperative pain reduction were usually compared with conventional non-selective conventional NSAIDs or other types of medicine. Previous studies also used selective cox-2 inhibitors as single postoperative dose, in continued mode, or in combination with other modalities. The purpose of this study was to compare analgesic efficacy of single preoperative administration of etoricoxib versus celecoxib for post-operative pain relief after arthroscopic anterior cruciate ligament reconstruction...

BACKGROUND:: Surgeons seek new methods of pain control to reduce side effects and speed post-operative recovery. Pulsed electromagnetic fields (PEMF) are effective for bone and wound repair and pain and edema reduction. This study examined whether the effect of PEMF on post-operative pain was associated with differences in levels of cytokines and angiogenic factors in the wound bed. METHODS:: In this double-blind, placebo-controlled, randomized study, 24 patients, undergoing breast reduction for symptomatic macromastia, received PEMF therapy configured to modulate the calmodulin-dependent nitric oxide signaling pathway...

BACKGROUND: Diclofenac is commonly used for acute pain in children, but is not licensed for this indication in all age groups. OBJECTIVES: 1) Assess the efficacy of diclofenac for acute pain in children. 2) Assess the safety of diclofenac for short-term use in children. 3) Identify gaps in the evidence to direct future research. SEARCH STRATEGY: Seventeen databases indexing clinical trial reports were searched in February 2005 (with an update search as part of this first review in May 2008)...

BACKGROUND: Ileus occurs after abdominal surgery and may be severe. Inhibition of prostaglandin release reduces post-operative ileus in a rat model. AIM: To determine whether prostaglandin inhibition by cyclooxygenase inhibitors, celecoxib or diclofenac, could enhance gastrointestinal recovery and reduce post-operative ileus in humans. METHODS: Two hundred and ten patients undergoing elective major abdominal surgery were randomized to receive twice daily placebo (n = 67), celecoxib (100 mg, n = 74) or diclofenac (50 mg, n = 69), preoperatively and continuing for up to 7 days...

BACKGROUND: Intense capsaicin-induced C-fiber stimulation results in reversible lysis of the nerve soma, thereby making capsaicin wound instillation of potential interest for the treatment of post-operative pain. Clinical histological and short-term sensory studies suggest that the C-fiber function is partly re-established after skin injection of capsaicin. However, no study has evaluated the long-term effects of wound instillation of purified capsaicin on sensory functions. METHODS: Patients included in a double-blind placebo-controlled randomized study of the analgesic effect of capsaicin after groin hernia repair were examined by quantitative sensory testing before, 1 week and 2 years post-operatively...

BACKGROUND: Pain after craniotomy is often under-treated. Opiates carry distinct disadvantages. Non-steroidal anti-inflammatory drugs have an anti-platelet action and carry a bleeding risk. Cyclo-oxygenase 2 inhibitors such as parecoxib are not associated with a bleeding risk and would be welcome analgesics if shown to be effective. METHODS: In a prospective double-blind, randomized, placebo-controlled study, we investigated the analgesic effect of a single dose of parecoxib 40 mg given at dural closure in 82 patients undergoing elective craniotomies...