Thunderclap headache: The “worst headache of my life”

Not all headache disorders are the same. An excruciating, sudden-onset headache known as thunderclap headache (TCH) is a medical emergency, very different from more common headache disorders such as migraine and tension headache. If you develop TCH, you should call 911 or immediately go to the closest hospital. TCH is associated with a variety of causes, ranging from benign to potentially fatal. Urgent evaluation in an emergency setting is needed to quickly identify and treat any underlying condition. Diagnosing and treating secondary thunderclap headache When you arrive at the hospital, the medical team will want to confirm or rule out a potentially serious, secondary cause of the TCH. The initial history and examination will focus on red flags that suggest specific secondary causes. A secondary TCH has an underlying cause, other than the headache itself. For example, neck stiffness or sleepiness may suggest a ruptured brain aneurysm or infection; a drooping eyelid may indicate a tear in the carotid artery (the main artery supplying the brain); seizures or sudden limb weakness may suggest clots in a blood vessel, or bleeding in the brain (hemorrhage). Absence of these signs and symptoms does not definitively rule out these causes, which is why you will likely undergo imaging of the brain and its blood vessels with either computed tomography (CT) or magnetic resonance imaging (MRI). If imaging does not reveal a clear secondary cause, a lumbar puncture, or spinal tap, may be n...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Headache Health Source Type: blogs

Related Links:

Conclusion: Our research outcome paves the way to create a device for cough monitoring in real-life situations. Significance: Our proposal is aligned with a more comfortable and less disruptive patient monitoring, with benefits for patients (allows self-monitoring of cough symptoms), practitioners (e.g., assessment of treatments or better clinical understanding of cough patterns), and national health systems (by reducing hospitalizations).
Source: IEEE Transactions on Biomedical Engineering - Category: Biomedical Engineering Source Type: research
Conclusion and Significance: This system has the capability to operate within the strong magnetic field of a clinical 3-T MRI, to form proper particle aggregates and to automatically inject these aggregates into the MRI bore. Moreover, the versatility of the proposed injector renders it suitable for selective injections of MDEBs during MR-guided embolization procedures.
Source: IEEE Transactions on Biomedical Engineering - Category: Biomedical Engineering Source Type: research
The neuroimaging-based computer-aided diagnosis for Parkinson's disease (PD) has attracted considerable attention in recent years, where the classifier plays a critical role. Random vector functional link network (RVFL) has shown its effectiveness for classification task, while its extended version, namely RVFL plus (RVFL+), integrates the additional privileged information (PI) about training samples in RVFL to help training a more effective classifier. On the other hand, it is still a popular way to adopt only a single neuroimaging modality for PD diagnosis in a clinical practice. In this work, we construct a novel...
Source: IEEE Transactions on Biomedical Engineering - Category: Biomedical Engineering Source Type: research
Publication date: Available online 18 July 2019Source: International Review of NeurobiologyAuthor(s): Aruna Sharma, Rudy J. Castellani, Mark A. Smith, Dafin Fior Muresanu, Prasanta Kumar Dey, Hari Shanker SharmaAbstract5-Hydroxytryptophan (5-HTP), a precursor of serotonin, is therapeutically used for several psychiatric disorders such as anxiety and depression in the clinic. However, severe side effects, including abnormal mental functions, behavioral disturbances and intolerance are associated with this treatment. 5-HTP-induced elevation of plasma and brain serotonin levels may affect blood-brain barrier (BBB) breakdown, ...
Source: International Review of Neurobiology - Category: Neuroscience Source Type: research
Publication date: Available online 18 July 2019Source: International Review of NeurobiologyAuthor(s): Dafin Fior Muresanu, Aruna Sharma, Ranjana Patnaik, Preeti K. Menon, Herbert Mössler, Hari Shanker SharmaAbstractThere is a growing trend of hypertension among military and civilian populations due to lifetime stressful situations. If hypertension is uncontrolled it leads to development of diabetes and serious neurological complications. Most of the World populations live in temperate zone across the World. Thus, a possibility exists that these hypertensive and diabetic people may have external heat as potential risk ...
Source: International Review of Neurobiology - Category: Neuroscience Source Type: research
In this study, we apply a diffusion “signal” model (diffusion tensor imaging, DTI) and two commonly implemented “microstructural” models (neurite orientation dispersion and density imaging, NODDI; spherical mean technique, SMT) in the human cervical spinal cord of twenty-one healthy controls. We first provide normative values of DTI, SMT, and NODDI indices in a number of white matter ascending and descending pathways, as well as various gray matter regions. We then aim to validate the sensitivity and specificity of these diffusion-derived contrasts by relating these measures to indices of the tissue...
Source: NeuroImage - Category: Neuroscience Source Type: research
Publication date: Available online 19 July 2019Source: NeuroImageAuthor(s): Gilberto Rojas-Vitea, Ricardo Coronado-Leijaa, Omar Narvaez-Delgado, Alonso Ramírez-Manzanares, Josí Luis Marroquín, Ramsés Noguez-Imm, Marcos L. Aranda, Benoit Scherrer, Jorge Larriva-Sahd, Luis ConchaaAbstractMicro-architectural characteristics of white matter can be inferred through analysis of diffusion-weighted magnetic resonance imaging (dMRI). The diffusion-dependent signal can be analyzed through several methods, with the tensor model being the most frequently used due to its straightforward interpretation and lo...
Source: NeuroImage - Category: Neuroscience Source Type: research
Publication date: Available online 19 July 2019Source: NeuroImageAuthor(s): Daniil P. Aksenov, Limin Li, Michael J. Miller, Alice M. WyrwiczAbstractThe shape of the blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) signal can vary considerably even across structures of the same sensory pathway. Here, we characterized the temporal behavior of the stimulus-evoked BOLD response in the primary cortical and subcortical regions of the visual and somatosensory whisker systems in awake rabbits. Despite similar BOLD responses in the thalamic nuclei, considerable differences in shape and duration ...
Source: NeuroImage - Category: Neuroscience Source Type: research
Publication date: Available online 18 July 2019Source: NeuroImageAuthor(s): Yu Takagi, Jun-ichiro Hirayama, Saori C. TanakaAbstractAn increasing number of functional magnetic resonance imaging (fMRI) studies have revealed potential neural substrates of individual differences in diverse types of brain function and dysfunction. Although most previous studies have inherently focused on state-specific characterizations of brain networks and their functions, several recent studies reported on the potential state-unspecific nature of functional brain networks, such as global similarities across different experimental conditions ...
Source: NeuroImage - Category: Neuroscience Source Type: research
In this study, we investigated whether neural dedifferentiation extends to auditory cortex. Inspired by previous animal work, we also investigated whether individual differences in GABA are associated with individual differences in neural distinctiveness in humans. 20 healthy young adults (ages 18–29) and 23 healthy older adults (over 65) completed a functional magnetic resonance imaging (fMRI) scan, during which neural activity was estimated while they listened to music and foreign speech. GABA levels in the auditory, ventrovisual and sensorimotor cortex were estimated in the same individuals in a separate magnetic ...
Source: NeuroImage - Category: Neuroscience Source Type: research
More News: Acetaminophen | Amphetamine | Anxiety | Back Pain | Bleeding | Blogging | Brain | Cough | CT Scan | Diets | Emergency Medicine | Harvard | Headache | Health | Hemorrhagic Stroke | Hospitals | Ibuprofen | Lortab | Lumbar Puncture | Migraine | Morphine | MRI Scan | Neurology | Nutrition | Pain | Sports Medicine | Stroke