Active clinical trials for "Hemorrhage"

comparison of the effect of misoprostol before and after cesarean on the blood loss

Endometrial cancer is the most common malignancy of the female genital tract in Hong Kong. The aim in the evaluation of PMB is to exclude underlying malignancy. Endometrial thickness (ET) measured by transvaginal ultrasound scanning (TVS) and endometrial biopsy or sampling (ES) has been recommended as the first-line investigation. From a study between 2002-2013 in the One-stop PMB clinic, investigators found that ET was able to identify women with endometrial cancer with the sensitivity at 3mm, 4mm, and 5mm, the current levels recommended in professional guidelines, being 97.0%, 94.1%, and 93.5% respectively. However, little is known about the level of patient's acceptance of the false negative rate and how patient would trade residual risk with more invasive test. There is also a lack of study on the experience of women during the management pathway especially the level of anxiety before and after investigations and the pain experienced from the investigations offered. The current study aim to study the level of false negative rate accepted by women for the investigation of PMB and the level of anxiety and pain experienced during the investigation pathway.

Determining the efficacy of low dose of PPI in management acute peptic ulcer bleeding

The purpose of this project is to test how ketamine, an analgesics currently employed in the pre-hospital setting by the US Army, alters the capacity to tolerate a hemorrhagic insult in humans.

Subarachnoid hemorrhage (SAH) consists of blood extravasation into the space between arachnoid and pia mater. Bleeding is a consequence of cerebral aneurysm rupture in most cases. Despite incidence being only 9 cases out of 1000 people per year, young age and high mortality and morbidity lead to loosing several years of healthy life. Therapy priorities are: preventing rebleeding, with endovascular treatment (when possible) or neurosurgical aneurism clipping; preventing complications associated with blood extravasation into subarachnoid pace, such as acute hydrocephalus treatment (that occurs in 20% of patients), by ventricular external drainage positioning, and delayed cerebral ischemia, mainly due to vasospasm, by endovenous administration of nimodipine; optimal perfusion pressure maintenance. Endogenous osteopontin (OPN) is thought to fulfill a protective activity over ischemic damage both in brain and other organs, including kidney. Besides, recombinant OPN administration markedly decreases ischemic area in a focal cerebral ischemia model, by an antiapoptotic action. Recent in vivo studies on animal models of SAH demonstrated that OPN plays a major role: treatment with OPN seems to prevent vasospasm reducing smooth muscle cells and endothelial cells apoptosis. Microparticles are mediators released by platelets, leucocytes, erythrocyte and endothelial cells. In ischemic stroke endothelial microparticles levels directly relate to clinical severity and ischemic area extension. In typical parenchymal haemorrhage microparticles levels are higher both in blood and in liquor and associated with worse clinical outcome. In SAH increased microparticle levels have been demonstrated, especially in the days of the bleeding, and microparticle levels change based on subtypes. Data disagree about the subtypes involved and their time course. This study aims to evaluate the correlation between OPN and microparticles levels and vasospasm development/ischemic lesion at the CT-scan, and subsequently with medium and long-term patients outcome.

To explore the effect of low tidal volume on blood loss and gas exchange during laparoscopic hepatectomy

This observational study evaluates the safety of gastrointestinal endoscopy in patients on oral anticoagulants (Vitamin K antagonists, rivaroxaban, dabigatran, edoxaban, and apixaban). This registry aims to assess the incidence, characteristics and risk factors for cardiovascular and bleeding events associated with an endoscopic procedure. Besides, it aims to evaluate the differences between Vitamin K antagonists and DOACs users and to estimate the impact of anticoagulation withdrawal time on the primary and secondary outcomes.

The purpose of this study is to evaluate the Thoraguard Surgical Drainage System in a real-world clinical environment. It is believed that this system will offer functional and clinical benefits over the current standard of care system for the removal of surgical fluids following cardiac surgery. Observations, experiences, and outcomes in a single hospital setting will be collected for the Thoraguard Surgical Drainage System.

The primary objective is to obtain data to inform the design of a population pharmacokinetic study of oxytocin after administration at CD as per standard institutional practice.

By doing this study, the investigator hopes to learn how the levels of important proteins involved in inflammation change over time in patients with acute brain injury. The total amount of time participants will be asked to volunteer for this study is approximately two hours over a five day period.