View clinical trials related to Subarachnoid Hemorrhage.
Filter by:Aneurysmal subarachnoid hemorrhage (SAH) is a devastating form of stroke, with delayed cerebral ischemia (DCI) as a major complication. There are several evidences, both in preclinical and in clinical studies that intraventricular fibrinolysis (IVF) controls the phenomenon that are leading to DCI. Here, the investigators propose to conduct a phase III trial to provide a clear evaluation of the impact of IVF after aneurysmal SAH.
This observational study investigates ICP signals obtained through an external ventricular drain in the brain connected with an external transducer. In particular, the study investigates how drainage influences the monitored signal: influence of flow rate, reservoir height and initial ICP before draining.
This study aims at clarifying the current situation of Emergency treatment of aneurysmal subarachnoid hemorrhage (SAH) in China, and analyzing the safety and efficacy of the treatment strategy between interventional treatment and open surgery, so as to improve the diagnosis and treatment of aneurysmal SAH.
Primary research question: For adults surviving spontaneous (non-traumatic) symptomatic intracranial haemorrhage with persistent/paroxysmal atrial fibrillation/flutter (AF), does starting full treatment dose oral anticoagulation (OAC) result in a beneficial net reduction of all serious vascular events compared with not starting OAC? Trial design: Investigator-led, multicentre, randomised, open, assessor-masked, parallel group, clinical trial of investigational medicinal product (CTIMP) prescribing strategies. Investigators plan for a pilot phase, followed by a safety phase.
The purpose of this study is to assess the ability of the Fluids Monitor to detect hemispheric bioimpedance asymmetry associated with acute brain pathology in patients presenting with suspected Acute Ischemic Stroke (AIS).
This is a staged registry study of early treatment strategy management of acute aneurysmal subarachnoid hemorrhage(aSAH) among different economic development levels areas in China. First stage, the study will investigate and register the basic information of emergency treatment management for the acute aSAH in 20 different grade centers located in different economic levels districts including Northeast part, Northern, Eastern, South-central, Northwest, Southwest and Qinghai-Tibet of China. Comparing the the outcome of acute aSAH to find the critical factors to affect it by statistical analysis. Then,the investigators will offer some suggestions to adjust the measures to improve the efficacy of emergency medical service for acute SAH. Second stage, to evaluate the outcome after applying the new suggestion of self-control methods. The investigators hypothesis that there is an appropriate green pathway in different districts to shorten the rescuing time, improve the curative effects.
The purpose of this investigator-initiated study is to compare the use of pupilometer and ultrasound assessment of optic nerve sheath diameter in predicting the ICP and to see if there is a value that could be used to indicate elevated ICP with either modality as these numbers are inconsistent throughout the literature. Patients that have either an external ventricular drain (EVD) or bolt placed will be enrolled in the study. After the EVD and bolt are placed the patient will undergo pupilometer examination (standard of care) followed by ultrasound assessment of the optic nerve sheath diameter (ONSD). The three values will be recorded. The same patient may have multiple readings performed if there is a change in ICP either spontaneously or due to intervention.
Firstly, this study aims at clarifying the current situation of Emergency treatment of aneurysmal subarachnoid hemorrhage (SAH) in China, and analyzing the influencing factors contributing to transport delay, so as to improve the efficiency of emergency treatment; Secondly, comparison and analysis of different surgical treatment of aneurysmal SAH would be undertook, so as to improve the diagnosis and treatment of aneurysmal SAH.
Vasospasm is a common complication after rupture of intracranial aneurysms causing devastating neurologic deficits and death. Vasospasm has been directly associated with the amount of subarachnoid blood inside the basal cisterns. Prior literature has attempted to refine treatment of ruptured intracranial aneurysms but does not have clear guidelines on the optimal method to drain subarachnoid blood. Two methods, extraventricular drain (EVD) and lumbar drain (LD) have been compared retrospectively yet remain controversial as to which method is optimal in reducing subarachnoid blood and preventing vasospasm. This study would be a prospective randomized trial in which patients would be assigned to EVD or LD and observed to see if one method of intervention is associated with preventing clinical vasospasm, decreasing subarachnoid blood, shortening overall ICU stay, and reducing the need for a permanent ventriculoperitoneal shunt. The conclusions of this study may identify an optimal treatment modality to benefit all future patients with ruptured intracranial aneurysms.
In patients at risk of increased intracranial pressure (ICP), ICP measurements require invasive transducers, usually with insertion of a catheter into the cranium, or through a spinal tap. These invasive modalities involve risks and pain and they can be done only in specialized care units, with a high associated cost. A novel method for detecting changes in ICP has developed recently. The auditory hair cells emit sounds and electric signals in response to sound, which can be easily detected and measured non-invasively with the help of a microphone probe placed in the external ear canal or regular electrodes. Indeed, the cochlear aqueduct connects the cerebrospinal fluid (CSF) spaces to the inner ear in such a way that ICP and inner-ear fluid pressure equalize within seconds. The evaluation of intracranial hypertension by increased ICP (invasive) is not systematically used after aneurysmal subarachnoid hemorrhage. It is then detected by using routine clinical signs of hydrocephalus or another disorder of cerebrospinal liquid flow, in combination with a standard imaging method (TDM). The measurement of noninvasive ICP could allow earlier detection of hydrocephalus or another disorder of cerebrospinal liquid flow, and evaluate whether the increase in ICP precedes patient clinical worsening and / or imaging.