Active clinical trials for "Hemorrhage"

The purpose of the present study is to compare the effectiveness and safety of two surgery evacuation methods (endoscopic surgery and suboccipital craniotomy) in the treatment of acute spontaneous cerebellar hemorrhage (SCH). A multi-center randomized control trial will be conducted. Patients with an initial GCS score of 5-14 will be screened and enrolled in the first 24 hours after SCH.

Post-tonsillectomy hemorrhage (PTH) is a feared complication to tonsillectomy. Tonsillectomy may be performed using different surgical techniques, which include both "cold" and "hot" dissection and hemostasis - but the technique may have a great impact on the risk of PTH. As of today there is no standard on how to perform hemostasis during tonsillectomy in Denmark. The aim of this study is to clarify whether cold dissection with either cold or hot hemostasis during the surgical procedure of tonsillectomy holds the lowest risk of PTH. Secondary objective is to address whether there is a difference in pain perception associated with the two procedures. The null hypothesis is that there is no difference in PTH between cold and hot hemostasis in tonsillectomy.

Aneurysmal subarachnoid hemorrhage (SAH) is a fatal disease with high morbidity and mortality. While the primary injury results from the initial bleeding and cannot be influenced, secondary injury through vasospasms and delayed cerebral ischemia (DCI) during the course of the disease might be a target for intervention in order to improve outcome. To date, beside the aneurysm treatment to prevent re-bleeding and the administration of oral nimodipine, there is no causal therapy available, so that novel treatment concepts are desperately needed. There are strong indications that inflammation contributes to DCI and therefore poor outcome and plays a major role in SAH. Some studies suggest a beneficial effect of anti-inflammatory drugs like glucocorticoids (GC) in SAH patient, but there are no data from randomized controlled trials proving or disproving the beneficial effect of GC, so that current guidelines do not recommend the use of GC in SAH so far. This multi-center trial aims to generate the first confirmatory data in a controlled randomized fashion that dexamethasone (DEX) improves the outcome in a clinically relevant endpoint in SAH patients. Moreover, this trial will generate first data in a secondary analysis, whether the initial inflammatory state of SAH patients defines a subgroup that particularly responds to a treatment with DEX.

The purpose of this pilot study is to evaluate the safety of stromal vascular fraction (SVF) therapy in patients with spontaneous intracerebral hemorrhage (SICH).

Randomized comparison within the endoscopic esophageal varices ligation versus non-selective beta-blocker in the primary prevention of esophageal variceal bleeding in patients with HCC.

Aneurysmal subarachnoid hemorrhage (aSAH) is a common type of acute hemorrhagic stroke. One of its complications, cerebral vasospasm (CVS), is the main cause of death and disability, with an incidence of up to 30%-90%. Blood and its metabolites are vital reasons for CVS. Normal saline, as an intraoperative irrigation fluid for the surgery of aneurysm clipping, can induce secondary damage to the brain. In this study, a new type of magnesium-rich artificial cerebrospinal fluid (MACSF) has been designed, which has similar ionic concentration, pH value and osmotic pressure compared with the physiological cerebrospinal fluid. It has been confirmed by animal experiments that MACSF can relieve the hyper-responsiveness of cerebral arteries to ET and 5-HT induced by hemorrhagic CSF from patients with aSAH by down-regulating the expression of ETA, contractile ETB and 5-HT1B receptors in the previous research. Therefore, MACSF may have potential effects on preventing and treating CVS. In this study, we plan to apply MACSF as an intraoperative irrigation fluid for the surgery of aneurysm clipping (MACSF group), which is compared with normal saline (historical control group). To evaluate the effects of MACSF on reducing the incidence of CVS and improving the clinical prognosis of patients with aSAH, the occurrence of CVS within 14 days after aneurysm clipping, NIHSS score, as well as mRS scores at 1, 3 and 6 months after aSAH will be recorded and compared. CVS related biomarkers will be used to evaluate the relationship between the occurrence of CVS and the levels of biomarkers in both CSF and blood samples from MACSF group.

Acute variceal upper gastrointestinal hemorrhage remains a hot potato in cirrhotic patients. The purpose of this study is to figure out whether urgent endoscopy (within 6h after gastroenterological consultation) is superior to non-urgent endoscopy (between 6h and 24h after gastroenterological consultation) in reducing re-bleeding for these patients. This is a single-centered, prospective, randomized, and controlled trial. 400 patients with suspected variceal bleeding will be randomized in a 1:1 ratio to receive endoscopic intervention either within 6h or 6-24h. Randomization is conducted by permuted block randomization stratified by age, systolic blood pressure (SBP), and pulse rate. The primary efficacy endpoint is rebleeding within 42 days after control of acute variceal bleeding. This trial will provide valuable insights into the efficacy between the urgent endoscopy group and the non-urgent endoscopy group.

Injury is the leading cause of death for people between the ages of 1-44. This is especially true in trauma patients who have bleeding complications. Acute trauma coagulopathy (ATC) is associated with high transfusion requirements, longer ICU stays, and a greater incidence of multi-organ dysfunction. The cause of coagulopathy is multi-factorial. One major driver is acquired fibrinogen deficiency (hypofibrinogenemia). Fibrinogen is critical in clot formation and enhances platelet aggregation. Due to the body's limited reserve, it is the first clotting factor to fall to critical levels during life-threatening bleeding. This can impair coagulation and increases bleeding complications. There are two primary options available for fibrinogen supplementation: Cryoprecipitate- North American standard Fibrinogen Concentrate (FC)- European standard Consumption of coagulation factors, including fibrinogen, is another important component of ATC. To replenish these depleted coagulation factors and improve thrombin generation, two therapies are available: Frozen Plasma (FP)- North American standard Prothrombin Complex Concentrate (PCC)- European standard Strategies for hemorrhage and coagulopathy treatment have changed significantly over the last decade. Prompt hemorrhage control, along with targeted coagulation factor replacement, are emerging as key components of trauma care. Currently, the initiation of a massive hemorrhage protocol (MHP) results in red blood cells (RBCs) and FP transfusions in a 1:1 or 2:1 ratio. Clotting factors are replaced via FP administration. Fibrinogen supplementation is administration after lab verification or at the clinician's discretion. MHP continues until the rate of hemorrhage is under control. FC and PCC have several important advantages over cryoprecipitate and FP but there is a scarcity of data regarding their efficacy and safety of their use in hemorrhaging trauma patients. The FiiRST-2 study aims to understand if early use of FC and PCC in trauma patients at risk of massive hemorrhage will lead to superior patient outcomes. This trial will also provide safety data on early administration of FC and PCC as a first-line hemostatic therapy in trauma care, and its impact on hemostatic and other clinical endpoints.

Phase IV multi-center, US-centric, open-label, safety study enrolling participants with Hemophilia A or B with inhibitors12 years of age and older, who are either on long term prophylactic treatment (e.g., emicizumab) at risk of experiencing a breakthrough bleeding event (BE), or who are not on prophylactic treatment who may need to control a BE.

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