Non-inferiority Trial of Oral Tranexamic Acid vs. Intravenous Tranexamic Acid in Joint Replacement...
OsteoarthritisBlood Loss3 moreThe purpose of this research is to determine if the oral form of a medication (tranexamic acid) to reduce bleeding can be used in place of an intravenous (IV) form, to learn the best way to give tranexamic acid: either a pill by mouth, or a solution by vein.
Moderate Bleeding in Cardiac Surgery Post Operative
Heart SurgeryDetermine a bleeding threshold by measuring the blood volume in ml / kg / h collected in the drainage system to define moderate bleeding postoperative cardiac surgery and define the population.
Transvaginal Ultrasound in Women With Abnormal Uterine Bleeding
Abnormal Uterine BleedingThe objective of this study is to investigate the role of transvaginal ultrasound in detecting endometrial hyperplasia and endometrial cancer in women aged more than 35 presenting with abnormal uterine bleeding.
SpareBrain - Mechanisms and Prevention of Secondary Brain Injury in Subarachnoid Haemorrhage
Aneurysmal Subarachnoid HemorrhageSubarachnoidal hemorrhage (SAH) is a cause of long-term disability and death. Annually about 1000 people in Finland suffer from SAH, their average age being under 50 years. SAH has a mortality rate of 12 % acutely and 40 % of patients die within a month from admission to hospital. In addition, 30 % of the surviving patients remain with neurological deficits. Most survivors of the primary insult suffer from secondary injury during the first 2-3 weeks from the insult. Despite the advances in neurosurgical and -radiological techniques and intensive care, the mortality and morbidity rates in SAH have not changed in recent years. There is still only limited understanding of the mechanisms of secondary insults causing brain injury after SAH. In this study the investigators are aiming to clarify the timescale and mechanisms contributing to the secondary insults. The investigators also explore usability of novel biomarkers to guide treatment of the patients suffering from SAH.
Prospective Study of Long-term Outcome After Non-aneurysmal Subarachnoid Hemorrhage
Subarachnoid HemorrhageSpontaneous subarachnoid hemorrhage (SAH) is usually caused by rupture of an intracranial aneurysm, but in up to 15% of patients with spontaneous SAH, no discernible bleeding source can be identified despite of repetitive radiological imaging. Patients, at least 18 months after ictus of a non-aneurysmal SAH, received a regular mail including a letter explaining the study purpose and the postal questionnaire consisting a short-form health survey with 36 simple questions. If we didn't receive answers after three months we made telephone interviews with the patients' family members or their general practitioner.
Bimanual Uterine Compression to Reduce Blood Loss and Prevent Postpartum Haemorrhage After Vaginal...
Postpartum Haemorrhagethe investigators aim to compare bimanual uterine compression immediately after delivery of the placenta for 5 minutes versus no intervention for the prevention of postpartum hemorrhage in Women at high risk for primary atonic postpartum hemorrhage. The primary outcome is postpartum haemorrhage (blood loss of ≥ 500 ml) while the Secondary outcomes include use of additional uterotonics and need for blood transfusion.
Ethnicity and Onset of Cardiovascular Disease: A CALIBER Study
Abdominal Aortic AneurysmCoronary Heart Disease12 moreSpecific cardiovascular diseases, such as stroke and heart attack, have been shown to vary by ethnic group. However, less is known about differences between ethnic groups and a wider range of cardiovascular diseases. This study will examine differences between ethnic groups (White, Black, South Asian and Mixed/Other) and first lifetime presentation of twelve different cardiovascular diseases. This information may help to predict the onset of cardiovascular diseases and inform disease prevention strategies. The hypothesis is that different ethnic groups have differing associations with the range of cardiovascular diseases studied.
Non-invasive Measuring of Cerebral Perfusion After Severe Brain Injury With Near-infrared-spectroscopy...
Subarachnoid HemorrhageAneurysmal2 moreThe purpose of this study is to show if it is possible to detect secondary ischemic events in patients with severe brain injury or cerebral haemorrhage with the help of non-invasive near-infrared spectroscopy (NIRS) by using the indocyanine green measuring of cerebral perfusion.
Intra-operative Monitoring of Blood Loss
Undetected Intraoperative Blood LossCertain types of surgery are associated with occult blood loss, which is hard to detect intraoperatively by intermittent conventional, invasive Hb concentration measurements using the clinical standard of Hb monitoring by satellite laboratory analysis (Hbsatlab). The investigators want to see whether continuous non-invasive transcutaneous Hb measurement using a finger sensor (SpHb), (a) reduces the total time (area under the curve, AUC) a patient's Hb is below a predetermined transfusion threshold (HbAUC) for administration of red blood cell concentrate (RBC), and (b) prevents a decrease in total oxygen delivery (DO2) possibly associated with transfusion below a critical haemoglobin concentration. Furthermore, the investigators want to study if SpHb monitoring changes the timing of RBC administration and reduces the need for intra- and post-operative RBC transfusion.
Prospective Registration and Assessment of Serious Adverse Events Within the AFNET
Atrial FibrillationAssessment of Serious Advers Events3 moreProspective registration and independent assessment of SAE associated with atrial fibrillation such as thromboembolic events, and other cardiac and noncardiac complications by a Critical Event Committee.