Active clinical trials for "Pain, Postoperative"

Impact of 2.5mg of oral Dronabinol daily versus placebo on post-operative opioid consumption on patients aged 18 to 65 years old undergoing 1 to 3 level posterolateral fusion

Prospective, single-centre, randomized, controlled, open-label, evaluator-blinded, superiority trial.

The purpose of this study was to investigate whether intraarticular administration of tranexamic acid could reduce hemarthrosis and postoperative pain in patients following anterior cruciate ligament reconstruction. The hypothesis of the study was that patients treated with intraarticular tranexamic acid would have significantly less postoperative hemarthrosis and less pain in the early phase of the rehabilitation process compared with those without intraarticular tranexamic acid .

The purpose of this study is to see if pre-operative regional nerve blocks compared to a placebo nerve block can decrease chronic post mastectomy pain, immediate postoperative pain and postoperative narcotic consumption.

The role of 5-HT3A receptors in nociceptive processing has been demonstrated in several animal models. However, studies in human volunteers have not been reported except for one recent study suggesting that ondansetron could alleviate propofol-induced nociception. Previous studies demonstrated that patients anaesthetized with sevoflurane have more pain than those anaesthetized with propofol. And we further posit that the difference is due to the nociceptive processing induced by the action of 5-HT3A receptors. In this prospective, randomized, double-blind, placebo-controlled study, we assessed the analgesic action of a 5-HT3A receptor antagonist (tropisetron) in women after gynaecological laparoscopy under general anaesthesia maintained with either sevoflurane or propofol.

The first hypothesis of the study is that substituting fentanyl by esmolol and metoprolol during general anesthesia for patients undergoing mastectomy will result in less pain and less narcotic consumption in the recovery room. The investigators will also verify the impact of that substitution on nausea and vomiting, on the time spent in the recovery room and on chronic postsurgical pain (3 and 6 months). Finally, the investigators will see the impact on breast cancer recurrence 5 years after the surgery.

Following arthroscopic shoulder surgery a small but significant number of people suffer severe postoperative pain. This study aims to predict which patients are at risk of developing severe post operative pain so that they may be targeted with a more aggressive post operative pain regimen.

Can Intraoperative systemic lidocaine decrease postoperative opioid consumption and improve quality of recovery after laparoscopic gastric bypass surgery? The hypotheses:does the use of intraoperative systemic lidocaine decrease postoperative opioid consumption and improve quality of recovery after laparoscopic gastric bypass surgery. This study has the potential to confirm an opioid sparing strategy for morbid obese patients undergoing laparoscopic gastric bypass surgery. The high incidence of obstructive sleep apnea and the increased risk of postoperative hypoxemia make the development of opioid sparing techniques in this patient population warranted.

Postoperative pain stimulates the autonomic nervous system, induces the production of pro-inflammatory substances, reduces patient mobility and impairs vital functions. The ECG spectral analysis (ECGs) is a non-invasive marker of the autonomic nervous system state. To our knowledge, the correlation between the sympathovagal activity quantified by a non invasive method and the postoperative pain, has not been studied before.

The goal of this clinical trial is to investigate whether it is possible to get a preliminary idea about the postoperative pain in the patient with the results of a practical cold press test applied to American Society of Anesthesiologists(ASA) 1 and 2, healthy, male patients aged 16-35 before extraction of the lower third molar. The main question it aims to answer are: • Can post-operative pain be predicted with an cold test that can be applied more practically than conventional quantitative sensory tests applied preoperatively? Participants will need to keep their hands on ice for 240 seconds prior to third molar surgery. When they take their hands off the ice, they will be asked to describe their pain on the visual analog scale. After the operation, the participants are required to mark whether they use painkillers every 8 hours in their pain follow-up forms and the pain they feel according to the visual analog scale. Depending on the endurance time of the participants to keep their hands on the ice; Two different groups were determined as less than 240 sec and equal to 240 sec. The pain scores and the amount of painkiller use between these two groups were compared with each other.