Clinical Research Directory

The Efficacy and Safety of Liposomal Bupivacaine in Relieving Postoperative Pain After Laparoscopic Surgery

Compared with traditional laparotomy, laparoscopic surgery offers advantages including minimal invasiveness, accelerated patient recovery, and reduced hospital stay. Although postoperative incision pain is generally less severe than that following laparotomy, it remains a notable clinical issue that impedes patient recovery. The majority of patients report incisional discomfort, with approximately 30% to 50% requiring oral analgesics to alleviate pain symptoms. Within the first two days after laparoscopic procedures, most patients experience varying degrees of incisional pain, with peak intensity typically occurring within hours after surgery and gradually subsiding over two to three days. Studies indicate that local infiltration anesthesia at the surgical site significantly ameliorates postoperative incision pain, enhances analgesic efficacy, and shortens recovery time in patients undergoing laparoscopic surgery.Liposomal bupivacaine(LB) is a novel, long-acting, sustained-release amide-type local anesthetic, providing localized analgesic effects for up to 72 hours. Some researchers have reported the analgesic effects of LB VS traditional local anesthetics infiltration, but the current research results are highly heterogeneous. More prospective studies are needed to evaluate whether LB infiltration is superior to the traditional local anesthetics for the management of postoperative pain. The investigators designed this study to compare the analgesic effect of using LB plus bupivacaine for local infiltration with bupivacaine along for patients after laparoscopic surgery.

The Efficacy and Safety of Liposomal Bupivacaine in Relieving Postoperative Pain After Hemorrhoid Surgery

Hemorrhoids represents the most prevalent condition among anorectal disorders. Due to the unique anatomical characteristics of the perianal region, patients frequently experience severe postoperative pain, which may lead some individuals to delay treatment due to pain-related anxiety. Consequently, effective postoperative pain management is critical for the recovery of hemorrhoid patients. Developing a simplified, efficient, and safe analgesic approach to alleviate postoperative pain has become an urgent issue in perioperative care. Multimodal analgesia regimens recommend the combined use of local anesthetics to synergistically reduce perioperative pain intensity. However, the primary limitation of this analgesic modality lies in the relatively short duration of action following a single injection of local anesthetic.Liposomal bupivacaine is an innovative long-acting, extended-release amide-type local anesthetic that provides analgesic efficacy for up to 72 hours. However, its efficacy and safety for local infiltration analgesia following hemorrhoid surgery have not been fully validated. Against this backdrop, the present study aims to evaluate and compare the clinical outcomes and safety profile of liposomal bupivacaine versus conventional bupivacaine for postoperative pain management via local infiltration in patients undergoing Hemorrhoid surgery.

Analgesia Following Lumbar Discectomy

Lumbar discectomy surgeries are often the last option for patients with disc herniation who do not improve with conservative treatments. However, these procedures can lead to significant perioperative pain that may become chronic without effective management. While intravenous opioids are commonly used for pain control, they can complicate recovery and pose risks like dependence. In contrast, regional anesthetic techniques offer advantages such as quicker recovery, better postoperative pain relief, and reduced opioid use, which can lead to shorter hospital stays. Our study aims to compare the effectiveness of the retrolaminar block with local wound infiltration for pain management following posterior lumbar discectomy surgeries, potentially improving patient outcomes.

Clinical Efficacy and Safety of Tender Point Infiltration (TPI) for Acute and Subacute Zoster Associated Pain

Herpes zoster (HZ) is a skin infection disease which cause severe zoster-associated pain (ZAP) along sensory nerve in the corresponding segment. Evidence for the efficacy of existing local therapies for acute/subacute ZAP is limited. The hypothesis is that patients with acute/subacute ZAP treated with TPIs with local anesthetic and steroids under the basis of standard treatment will show better clinical outcomes compared with subjects treated with standard antiviral medicine treatment only.

Wide-Awake Local Anesthesia No Tourniquet (WALANT) With Versus Without Hyaluronidase for Hand Surgery

The WALANT (Wide Awake Local Anesthesia No Tourniquet) method, introduced by Dr. Donald H. Lalonde over a decade ago, has gained popularity due to its favorable outcomes and patient satisfaction. This technique involves injecting diluted lidocaine and epinephrine, which helps control pain and bleeding without the discomfort of a tourniquet. This research will explore the use of hyaluronidase to enhance the WALANT technique. The study hypothesize that adding hyaluronidase would improve the onset speed and duration of pain control. A double-blinded study involving 100 patients compared WALANT with hyaluronidase (Group A) to WALANT without Hyaluronidase (Group B).

Hyaluronidase Enzymes and Local Anesthesia

* For both groups, local anaesthesia will be administered by one single surgeon and the extraction will be performed by another single surgeon across all subjects. The surgeon performing the extraction will be blinded with regard to the local anaesthesia technique used in this study * A buccal infiltration injection of 1.5 ml of 4% articaine with 1:100,000 adrenaline (Septocaine, Septodont, New Castle, Del.) plus 1.5 ml of hyaluronidase enzyme (7.5IU/1ml) will be used in the study group while use 4% articaine with 1:100,000 adrenaline (Septocaine, Septodont, New Castle, Del.)only in traditional inferior alveolar nerve block in the control group * In study and control groups, VAS (visual analogue scale=is an unmarked, continuous, horizontal,100-mm line, anchored by the end points of "no pain" on the left and "worst pain" on the right ) will be used to evaluate the pain levels of the patients associated with the injection and during extraction

Comparison of Epidural Analgesia With Intra-Articular Infiltration Analgesia

The results of combining infiltrative analgesia applied by orthopedists with epidural analgesia applied by anesthesiologists after knee replacement surgery will be compared. It aims to compare epidural analgesia with the maximum reduction of postoperative pain in patients, as well as in terms of both analgesic and complications. The study will include patients who have undergone knee replacement surgery for six months. In the study, we will compare the results of painkillers applied to the patient from the waist or knee after the waist numbing anesthesia, which includes some of the routinely applied protocols of your knee replacement surgery. It is a condition that will be monitored after surgery. The study aims to reduce maximum pain with two painkiller methods applied in small amounts or together. No interventional application will be made to the patient who will undergo surgery other than routine application. After the surgery, you will be asked verbally about your pain level and side effects at certain hours after the surgery and the amount of painkillers used and the amount of painkillers will be determined according to the follow-up hours (1st, 2nd, 6th, 12th, 24th and 48th hours after the surgery). In addition to these, complications will also be monitored. The results of patients who can be fully followed up at the end of 6 months will be presented as a scientific study.