54 Clinical Trials for Various Conditions
The investigators propose prospectively evaluating if adding separate sutures to the angles of the vaginal cuff before running barbed suture reduces the incidence of patient's perception of bleeding after surgery.
The purpose of the research is to assess the effectiveness of a dose of intravenous tranexamic acid (TXA) given intraoperatively to reduce postoperative bleeding after endoscopic sinus or nasal surgery (e.g. septoplasty, endoscopic sinus surgery, turbinate surgery). This medication has been shown to decrease blood loss during this type of surgery, but the implications for bleeding following surgery are unclear. Any impact on postoperative bleeding will be assessed over the first 7 days following surgery leading up to the first scheduled postoperative clinic visit. Patients will keep a standardized daily diary of their bleeding experience by indicating on a 0-10 visual analog scale (VAS) their impression of their bleeding. The primary outcome is the patient-reported visual analog scale (VAS) bleeding score on each day after surgery. The secondary outcomes include the the frequency with which the otolaryngology resident service is requested to evaluate patients in the recovery unit for postoperative bleeding concerns and the frequency of interventions such as application of hemostatic materials, packing, cautery, and/or return to the operating room.
The purpose of this study is to determine if aspirin is associated with bleeding complications following a single tooth extraction
The purpose of this study is to determine if applying a single dose of topical estrogen cream in the operating room at the end of your hysterectomy (removal of uterus and cervix) improves the postoperative experience with bleeding and potential symptoms of dysphoria (a feeling of discomfort or distress). Topical estrogen cream is sometimes used if patients have increased risk of bleeding with surgery but is not currently utilized in a consistent way. This study aims to answer the question of whether this is a helpful treatment and should be included in standard postoperative care.
This study will be a prospective randomized control trial to evaluate the effects of subcutaneously administered TXA among patients undergoing nasal Mohs reconstruction with local flaps at VUMC.
The purpose of this study was to characterize the safety and hemostatic activity of topical Fibrocaps in surgical patients when control of mild to moderate bleeding by standard surgical techniques was ineffective and/or impractical.
A prospective, randomized, placebo-controlled, double-blinded pilot study is planned. Neonates undergoing surgeries requiring cardiopulmonary bypass will receive antithrombin III (ATIII) supplementation or placebo in addition to standard anticoagulation with heparin as currently practiced at Children's Hospital of Wisconsin. We plan to enroll the first 60 sequential patients meeting criteria who consent to inclusion. The primary outcomes will be rates of adverse events to monitor safety. Secondary outcomes include volume of postoperative blood loss and packed red blood cell transfusion during the first 24 postoperative hours, and ATIII levels during and after bypass to determine pharmacokinetics.
This is a special access protocol that will allow physicians access to aprotinin during the temporary marketing suspension. The program will provide aprotinin for treatment of surgical patients undergoing coronary artery bypass graft (CABG) surgery requiring cardiopulmonary bypass (CPB) who are at increased risk of bleeding and transfusion when, in the opinion of the treating physician, the patients require it, there is no acceptable alternative therapy, and when there is a clearly favorable benefit-risk for the drug in that individual patient.
Study has been completed and is in the data analysis and manuscript writing phase of the project.
There has been continuing debate about whether use of hetastarch for volume replacement in coronary artery bypass surgery \[CABG\] increases the risk of postoperative bleeding. A recent meta-analysis of hetastarch use in on-pump CABG concluded that use of hetastarch in these procedures is associated with increased risk, but the safety of hetastarch use in off-pump procedures remains unresolved. We designed a double-blinded randomized clinical trial to investigate this question. The study was designed as an equivalence trial. Statistical power calculations were performed taking this into consideration. Sealed assignments from a block randomization table developed prior nto initiation of the trial were unsealed in the operating room. These were used to assign patients scheduled for off-pump CABG to receive either 1 L of hetastarch or 1 L of albumin as part of intraoperative volume replacement. Albumin was used for all subsequent intraoperative and postoperative fluid replacement. The rate of postoperative bleeding was assessed prospectively by monitoring hourly chest tube drainage and number of units of blood products transfused postoperatively in the Intensive Care Unit. Risk was assessed by a Data Safety Monitoring Committee (DSMC) established for this trial. The SAMC was scheduled per protocol to meet after the first 15 subjects (both groups combined) had 1000cc or more of chest tube drainage in the first 12 hours postoperative, and then subsequently either after 15 additional bleeds of this volume or following a schedule set at the discretion of the DSMC. The trial was continued until 156 patients had been recruited. At that time, 78 participants each had been assigned to the hetastarch and albumin groups. DSMC review at that time determined that use of hetastarch is associated with a risk of postoperative bleeding which is greater than the risk associated with use of albumin and the DSMC accordingly halted the trial.
This is a prospective clinical study designed to assess blood loss in intracapsular and extracapsular hip fractures undergoing operative fixation at a Level II trauma center. It is well established in the orthopedic literature that tranexamic acid (TXA) decreases blood loss and need for postoperative blood transfusion in hip fracture patients as well as total joint arthroplasty patients. A typical dosing pattern, and the dosing pattern employed at our institution, is 1 gram IV infused prior to incision followed by 1 gram IV infused at the time of wound closure.
In spine surgery, it is important to try to minimize bleeding. In particular, spine surgery often involves inserting hardware into bone, and/or removing bone in the spine. Because the bone in the spine contains blood vessels, there can often be bleeding from the bone itself that is difficult to stop completely. One way to stop bone bleeding is through the use of wax-like materials, which plug the bleeding bone and act as a physical barrier to stop bleeding. One example is Ostene bone hemostasis material, which has the advantage of being "water soluble", meaning it will dissolve naturally over time. The purpose of this study is to evaluate how well Ostene does at decreasing bleeding, by using a recognized scale called the validated intraoperative bleeding severity scale, abbreviated as "VIBe". In this study, the investigators will record the bleeding severity throughout multiple time points in surgery using this scale, and then the investigators will compare the measurements to patients in the past who did not receive Ostene. Overall, this research will help measure how well Ostene decreases bleeding.
This study will be a prospective randomized study to evaluate the effect of tranexamic acid (TXA) use on intraoperative and postoperative outcomes among patients undergoing rhinoplasty by two Facial Plastic surgeons at Vanderbilt. Outcomes will include intra- and post-operative bleeding and postoperative bruising and swelling.
This study has been designed to evaluate how effective the Bizact tonsillectomy device is in reducing operating time and complications that occur after surgery. This device operates in a different way than the standard device that is used for most tonsillectomies. In 2019, a study was conducted in 186 children and adults using this device in tonsillectomies. Results showed lower blood loss and shortened time in surgery. However, the rate for bleeding as a complication after surgery was the same as other procedures that are used in tonsillectomy
This is a randomized prospective study to determine the optimal postoperative pain medication regimen for adults (18 years old and older) undergoing tonsillectomy with or without adenoidectomy for chronic tonsillitis and/or snoring and/or obstructive sleep apnea. All participants will undergo the same tonsillectomy surgical technique (with or without adenoidectomy) under general anesthesia and be randomized to one of three postoperative pain control regimens (all of which are commonly used pain medications for post-tonsillectomy pain): 1. Norco (Hydrocodone and Acetaminophen) 2. Percocet (Oxycodone and Acetaminophen) 3. Dilaudid and Tylenol (Acetaminophen) Participants will be discharged home the day of surgery and will be sent home with questionnaires to assess their daily pain level, oral intake, amount of nausea/vomiting, and amount of pain medications taken for the 14 days following their surgery. Data will be collected and analyzed to determine if there is a difference in pain levels or oral intake or nausea/vomiting in the different pain regimen groups. Secondary endpoints will include weight change from preoperative weight to weight at 2-3 weeks after surgery in addition to postoperative complications including visits to the Emergency Department and post-tonsillectomy bleed rates. Participants will be seen 1-2 weeks following their surgery in the ENT (Ear, Nose and Throat) clinic per normal postoperative protocol and will not require any specific clinic visits related to this study.
The purpose of this study is to evaluate the effect of combining two interventions already in use at some institutions for reducing post-operative pain following tonsillectomy or adenotonsillectomy. The standard of care at most institutions is to leave the tonsillectomy wound bed exposed to heal on its own over one to two weeks. At many institutions, surgeons inject or topically apply local anesthetics such as bupivacaine hydrochloride to the tonsillectomy wound bed to help reduce post-operative pain. At other institutions, surgeons apply a layer of fibrin sealant, which is derived from the proteins that help form blood clots in blood, to the tonsillectomy wound bed in order to cover the site and reduce irritation and exposure of the wound bed. Use of fibrin sealant has the additional benefit of potentially reducing postoperative bleeding (hemorrhage) rates. Both the post-tonsillectomy use of bupivacaine (injection and topical) and the use of topical fibrin sealant application have been studied previously in the scientific literature; some studies show a clear benefit, others show no significant reduction in pain when they are used. No studies have documented harm. The purpose of this study is to evaluate the efficacy of infusing bupivacaine anesthetic into the fibrin sealant prior to application to the tonsillectomy wound bed. In this way, the combined product would function as a sort of "medicated bandaid" covering the painful wound bed and slowly delivering an entirely safe total dose of bupivacaine into the wound bed to reduce post-operative pain. Parents will be provided post-operative pain measurements to complete during the first 10 postoperative days and return to the researchers for data analysis.
The purpose of this study is to determine whether aspirin taken in the perioperative period will increase the blood loss associated with open inguinal hernia repairs. A secondary purpose of this study is to determine if the aspirin administered in the perioperative period increases the risk of complications associated with open inguinal hernia repairs.
The purpose of this study is to assess if aprotinin (BAYA0128), given intravenously during your surgery, is safe and can help reduce the need for a blood transfusion during bladder surgery.
To the Investigators' knowledge, TXA has not been studied in the setting of reverse total shoulder arthroplasty. We propose a double-blinded, randomized, controlled trial comparing perioperative administration of TXA to placebo in the setting of RTSA. The purpose of this study is to examine the efficacy of TXA in reducing overall blood loss and transfusion rates in patients undergoing reverse total shoulder arthroplasty.
The purpose of this study is to determine if closing the tonsil fossa after tonsillectomy leads to less pain and bleeding risk than leaving it open to heal by secondary intention.
This study will investigate how chest temperature relates to blood loss and blood clotting. Researchers will use infra-red thermometers to measure the temperature of the chest at the end of surgery see if this relates to the amount of blood collected from the surgical drains. In addition, researchers will test if warm irrigation of the chest increases the temperature of the chest and if this impacts blood loss.
Study aim was to evaluate topical MPH on the risk of post-mastectomy seroma formation as measured by total drain output and total drain days.
The purpose of this study is to see if Human Thrombin is as effective as Bovine Thrombin in stopping surgical bleeding within 10 minutes of application.
Hypothesis: Topical application of Tranexamic acid into the surgical wound during spine surgery will decrease the overall blood loss post-operatively. This reduction in blood loss will reduce the need for transfusion. In addition it will also significantly reduce the cost of the surgical procedure. Specific Aim 1: The goal of this study is to quantitatively assess whether topical application of tranexamic acid placed into the surgical wound during lumbar spine surgery will decrease post-operative blood loss, thus lowering the need for blood transfusions. By reducing the number of transfusions participants can avoid the well-known complications associated with them. The investigators do not plan on measuring serum tranexamic acid levels. Several meta-analyses and level I studies have shown that intravenous (IV) administration of tranexamic acid is effective in reducing postoperative blood loss and the need for transfusion.
Bleeding after Mohs micrographic surgery for skin cancer is a low risk complication that can occur. This study aims to determine the effect of a drug, often used to reduce bleeding, called tranexamic acid when applied topically to the skin wound after surgery.
Tonsillectomy (removal of the tonsils) is a very common surgery in children. Bleeding after tonsillectomy is one of the risks of this surgery and can be more dangerous in children since they have less blood volume than adults. In order to improve recovery after tonsillectomy, steroids (medication that is a strong anti-inflammatory) are often given during the surgery. Recently, a study showed steroids given at the time of tonsillectomy increase the risk of bleeding significantly over children who did not receive steroids. This finding has raised concerns in the Ear, Nose, and Throat (ENT) community since most ENT's use steroids during tonsillectomy in children. The investigators look to explore this question further. To answer the question of whether perioperative steroid administration significantly affects the rate of post-tonsillectomy bleeding, the investigators propose to test the following hypotheses in a prospective, randomized, blinded placebo-controlled trial: dexamethasone does not cause an increase in post-operative bleeding rate in tonsillectomy.
Total hip arthroplasty (THA) is a procedure associated with perioperative blood loss, requiring blood transfusions in some patients. The major cause of this blood loss is due to surgical trauma that induces the clotting cascade and fibrinolysis. Several previous studies and meta-analyses have shown that tranexamic acid is an effective antifibrinolytic agent that reduces blood loss in a variety of situations. Tranexamic acid given in an intravenous form has been extensively studied and shown to be efficacious in cardiothoracic, spine surgical procedures as well as total knee arthroplasty (TKA) and THA. Similarly, topical tranexamic acid has been associated with decreased blood loss in cardiac surgeries as well. Recently, results from a prospective randomized study on the topical use of tranexamic acid in total knee arthroplasty found it to be effective for reducing postoperative blood loss. Taking all of the above into consideration we have proposed a study to evaluate effects of topical application of tranexamic acid on postoperative blood loss and blood transfusion on patients undergoing total hip arthroplasty. The aim of this study is to evaluate the efficacy of the topical application of tranexamic acid on blood loss in patients undergoing a primary unilateral total hip arthroplasty.
Prospective, Multicenter, Double-blind, Randomized, Study to Evaluate DrugSorb-ATR Removal of Apixaban and Rivaroxaban to Reduce Likelihood of Serious Bleeding in Patients Undergoing Urgent Cardiothoracic Surgery
Prospective, multi-center, double-blind, randomized pivotal trial to evaluate the safety and effectiveness of the DrugSorb-Antithrombotic Removal (ATR) system for intraoperative removal of ticagrelor in patients undergoing urgent cardiothoracic (CT) surgery with cardiopulmonary bypass (CPB).
Autologous blood transfused at the end of cardiopulmonary bypass will reduce total blood loss 24 hours after surgery and improve mitochondrial oxygen delivery measured by plasma succinate levels. The study design is a prospective randomized interventional trial of transfusion of fresh autologous whole blood versus standard of care expectant management of bleeding during elective cardiac surgery.