Active clinical trials for "Subarachnoid Hemorrhage"

The Stroke Recovery Initiative is a nation-wide participant recruitment registry that connects people who have had a stroke with researchers who are working to develop new approaches to improve recovery after stroke.

The purpose of this study is to determine the relationship between the Neuroinflammatory response and headache pain after subarachnoid hemorrhage.

This study is a multi-center, prospective, registry study. This research was supported by the National Key Research and Development Program. To establish a domestic multi-center, large-scale "brain-heart comorbidity" dynamic database platform including clinical, sample database, image and other multi-dimensional information requirements, through the construction of a multi-center intelligent scientific research integration platform based on artificial intelligence. Any of newly diagnosed cardiovascular related diseases were identified via ICD-10-CM codes: I21, I22, I24 (Ischaemic heart diseases) [i.e., ACS], I46 (cardiac arrest), I48 (Atrial fibrillation/flutter), I50 (Heart failure), I71 (Aortic disease), I60 (subarachnoid hemorrhage), I61 (intracerebral hemorrhage), I63 (Cerebral infarction), I65 (Occlusion and stenosis of precerebral arteries), I66 (Occlusion and stenosis of cerebral arteries), I67.1 (cerebral aneurysm), I67.5 (moyamoya diseases), Q28.2 (Arteriovenous malformation of cerebral vessels). The data is stored on the brain-heart comorbidity warehouse via a physical server at the institution's data centre or a virtual hosted appliance. The brain-heart comorbidity platform comprises of a series of these appliances connected into a multicenter network. This network can broadcast queries to each appliance. Results are subsequently collected and aggregated. Once the data is sent to the network, it is mapped to a standard and controlled set of clinical terminologies and undergoes a data quality assessment including 'data cleaning' that rejects records which do not meet the brain-heart comorbidity quality standards. The brain-heart comorbidity warehouse performs internal and extensive data quality assessment with every refresh based on conformance, completeness, and plausibility (http://10.100.101.65:30080/login).

Aneurysmal subarachnoid hemorrhage (aSAH) is a neurosurgical disease with high morbidity and mortality. It accounts for approximately 5% of all strokes worldwide and has an incidence rate of 6 to 16 per 100,000 person-years. Multimodal computed tomography including non-contrast computed tomography, computed tomography angiography and computed tomography perfusion, is of great important in observing aneurysm morphology, understanding pathophysiological changes and evaluating the prognosis of the disease

An MRI study to examine the relationship between blood pressure and cerebral blood flow in patients with subarachnoidal hemorrhage and suspect or verified vasospasm.

Headaches associated with subarachnoid hemorrhage (SAH) cause severe pain. Headache management is complex, requiring a balance between pain control and preservation of neurological assessment. Sufficient pain control can be achieved with narcotics, however, these carry numerous undesirable side effects. Most critically, all narcotics can result in respiratory depression and sedation. For patients who present without neurological defects but debilitating pain, management is particularly challenging. The sedative effect of narcotics confounds the management of these patients by interfering with the neurological examination. Pain management is also a significant concern for patient's families as they observe suffering without full understanding of the importance of preserved mental status. In order to control the pain associated with SAH headaches, the use of narcotics is often required despite the risks. This standard therapy involves an IV bolus dose delivered by the provider regularly as needed for pain control. A common approach to reduce pain in other patient populations, including acute pain relief following major spine surgery, is patient controlled analgesia (PCA). With the PCA method, patients deliver low doses of narcotics through a pain pump with preset maximal doses and frequency of delivery. We hypothesize that this approach to pain relief for SAH headaches will result in lower pain scores, greater patient and family satisfaction scores, and increased patient safety with lower narcotic doses minimally interfering with neurological assessment.

The purpose of this research is to compare patients with aneurysmal subarachnoid hemorrhage on dexmedetomidine compared to propofol to assess if one group has decreased inflammation. The investigators hypothesis is that the group assigned to receive dexmedetomidine will have a more profound decrease in markers of inflammation over time.

The investigators will test the central hypothesis that DFO treatment after SAH may improve cerebrovascular regulation, mitigate ischemic neural injury, and serve as an effective neuroprotectant against delayed ischemic injury after SAH.

The purpose of this study is to test the feasibility of a trial on induced hypertension to improve neurological outcome in patients with subarachnoid haemorrhage that developed the serious complication "delayed cerebral ischemia", and to assess whether induced hypertension results in improved cerebral blood flow (CBF) as measured by means of perfusion-CT.

Acute brain injury due to traumatic brain injury (TBI), intracerebral haemorrhage (ICH), and aneurysmal subarachnoid haemorrhage (SAH) carries a high morbidity and mortality, in part due to the development of secondary brain injury. The mechanisms behind secondary brain injury are incompletely understood, but oxidative/nitrosative stress and disturbances in the metabolism of the vasodilator nitric oxide (NO) are believed to be involved. The aim of the present study is to characterise systemic changes in markers of oxidative/nitrosative stress and NO metabolism in the early phase after acute brain injury, and to examine their relationship to clinical course, neurological outcome, and mortality.