Phenotypes
Db Link Name Definition Comment Is a
HPO HP:0001260 Dysarthria "Dysarthric speech is a general description referring to a neurological speech disorder characterized by poor articulation. Depending on the involved neurological structures, dysarthria may be further classified as spastic, flaccid, ataxic, hyperkinetic and hypokinetic, or mixed." [HPO:curators] HP:0002167
HPO HP:0001289 Confusion "Lack of clarity and coherence of thought, perception, understanding, or action." [HPO:curators] HP:0004372
HPO HP:0007270 Atypical absence seizure "An atypical absence seizure is a type of generalised non-motor (absence) seizure characterised by interruption of ongoing activities and reduced responsiveness. In comparison to a typical absence seizure, changes in tone may be more pronounced, onset and/or cessation may be less abrupt, and the duration of the ictus and post-ictal recovery may be longer. Although not always available, an EEG often demonstrates slow (<3 Hz), irregular, generalized spike-wave activity." [HPO:probinson, PMID:28276060, PMID:28276062, PMID:28276064, PMID:6790275] in 2017 the ILAE Commission for Classification and Terminology recommended classifying a seizure as having focal or generalized onset only when there is a high degree of confidence (over 80%, arbitrarily chosen to parallel the usual allowable beta error) in the accuracy of this determination; see Dialeptic seizure. HP:0002121
HPO HP:0007537 Severe photosensitivity "A severe degree of photosensitivity of the skin." [HPO:curators] HP:0000992
HPO HP:0001251 Ataxia "Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly)." [HPO:probinson] Ataxia can be differentiated into dyssynergy, asynergy, dysmetria (hypometria, hypermetria), dysdiadochokinesis, gait ataxia, truncal ataxia, limb ataxia, and dysarthria). Note: This term does not include sensory ataxia. HP:0011443
HPO HP:0040288 Nasogastric tube feeding "The condition of inability to eat normally treated by placement of a thin tube through the nose into the stomach that is then used to carry food." [PMID:25874832] HP:0033454
HPO HP:0002384 Focal impaired awareness seizure "Focal impaired awareness seizure (or focal seizure with impaired or lost awareness) is a type of focal-onset seizure characterized by some degree (which may be partial) of impairment of the person's awareness of themselves or their surroundings at any point during the seizure." [HPO:pnrobinson, PMID:28276062, PMID:28276064, PMID:9738682] Awareness during a seizure is defined as the person being fully aware of themselves and their environment throughout the seizure, even if immobile. If awareness is impaired at any point during the seizure, the seizure is a focal impaired awareness seizure. The degree of loss of awareness may vary. The terms 'complex partial seizure' and 'focal dyscognitive seizure' were previously used to denote a focal impaired awareness seizure. HP:0007359, HP:0011146
HPO HP:0002540 Inability to walk "Incapability to ambulate." [HPO:probinson] HP:0001288
HPO HP:0001399 Hepatic failure HP:0001410
HPO HP:0012444 Brain atrophy "Partial or complete wasting (loss) of brain tissue that was once present." [HPO:probinson] HP:0007367, HP:0012443
HPO HP:0001312 Giant somatosensory evoked potentials "An abnormal enlargement (i.e. increase in measured voltage) of somatosensory evoked potentials." [HPO:curators] HP:0007377
HPO HP:0031358 Vegetative state "Absence of wakefulness and conscience, but (in contrast to coma) with involuntary opening of the eyes and movements (such as teeth grinding, yawning, or thrashing of the extremities)." [] HP:0004372
HPO HP:0002123 Generalized myoclonic seizure "A generalized myoclonic seizure is a type of generalized motor seizure characterised by bilateral, sudden, brief (<100 ms) involuntary single or multiple contraction of muscles or muscle groups of variable topography (axial, proximal limb, distal). Myoclonus is less regularly repetitive and less sustained than is clonus." [HPO:jalbers, PMID:28276060, PMID:28276064] HP:0032677, HP:0032794
HPO HP:0001257 Spasticity "A motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with increased muscle tone, exaggerated (hyperexcitable) tendon reflexes." [HPO:probinson] HP:0001276, HP:0002493
HPO HP:0002100 Recurrent aspiration pneumonia "Increased susceptibility to aspiration pneumonia, defined as pneumonia due to breathing in foreign material, as manifested by a medical history of repeated episodes of aspiration pneumonia." [HPO:probinson] HP:0011951
HPO HP:0011165 Focal sensory seizure with visual features "A seizure characterized by elementary visual hallucinations such as flashing or flickering lights/colours, or other shapes, simple patterns, scotomata, or amaurosis as its first clinical manifestation." [HPO:jalbers] More complex visual hallucinations such as seeing formed images are considered a focal cognitive seizure. Focal sensory visual seizures arise in the occipital lobe. Note that there is a distinction between Visual aura and Simple partial occipital seizures. See HPO term HP:0025121 for comments. HP:0011157
HPO HP:0002133 Status epilepticus "Status epilepticus is a type of prolonged seizure resulting either from the failure of the mechanisms responsible for seizure termination or from the initiation of mechanisms which lead to abnormally prolonged seizures (after time point t1). It is a condition that can have long-term consequences (after time point t2), including neuronal death, neuronal injury, and alteration of neuronal networks, depending on the type and duration of seizures." [HPO:jalbers, ORCID:0000-0002-1735-8178, PMID:26336950, PMID:28276060] In 2015 the ILAE Task Force on Classification of Status Epilepticus concluded that the evidence to define time points 1 and 2 in humans was incomplete. For tonic-clonic status epilepticus t1 is defined as 5 minutes and t2 as 30 minutes. For focal status epilepticus with impaired consciousness t1 is defined as 10 minutes and t2 over 60 minutes. For absence status epilepticus t1 is defined as 10-15 minutes and t2 is unknown. HP:0001250
HPO HP:0100318 Lafora bodies "An intraneuronal inclusion body composed of acid mucopolysaccharides." [HPO:sdoelken] HP:0100314
HPO HP:0000716 Depression "Frequent feelings of being down, miserable, and/or hopeless; difficulty recovering from such moods; pessimism about the future; pervasive shame; feeling of inferior self-worth; thoughts of suicide and suicidal behavior." [HPO:probinson, PMID:23902698] HP:0031466
HPO HP:0002521 Hypsarrhythmia "Hypsarrhythmia is abnormal interictal high amplitude waves and a background of irregular spikes. There is continuous (during wakefulness), high-amplitude (>200 Hz), generalized polymorphic slowing with no organized background and multifocal spikes demonstrated by electroencephalography (EEG)." [HPO:curators] HP:0011198
HPO HP:0010819 Atonic seizure "Atonic seizure is a type of motor seizure characterized by a sudden loss or diminution of muscle tone without apparent preceding myoclonic or tonic event lasting about 1 to 2 seconds, involving head, trunk, jaw, or limb musculature." [HPO:jalbers, HPO:probinson, ORCID:0000-0002-1735-8178, PMID:11580774] This term describes the initial semiology of the seizure without specifying whether the onset is focal or generalized. Thus it can be used for coding atonic seizures when the onset is not known. HP:0020219
HPO HP:0002367 Visual hallucinations "Visual perceptions that are not elicited by a corresponding stimulus from the outside world." [] HP:0000738
HPO HP:0002315 Headache "Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve." [HPO:probinson, PMID:15304572] Headache is one of the most common types of recurrent pain as well as one of the most frequent symptoms in neurology. In addition to occasional headaches, there are well-defined headache disorders that vary in incidence, prevalence and duration and can be divided into two broad categories. In secondary headache disorders, headaches are attributed to another condition, such as brain tumour or head injury; for the primary disorders the headache is not due to another condition. HP:0012638
HPO HP:0002360 Sleep disturbance "An abnormality of sleep including such phenomena as 1) insomnia/hypersomnia, 2) non-restorative sleep, 3) sleep schedule disorder, 4) excessive daytime somnolence, 5) sleep apnea, and 6) restlessness." [HPO:curators] HP:0000708
HPO HP:0007334 Bilateral tonic-clonic seizure with focal onset "A bilateral tonic-clonic seizure with focal onset is a focal-onset seizure which progresses into a bilateral tonic-clonic phase." [HPO:probinson, PMID:28276060, PMID:28276064] The ILAE 2017 classification refers to this seizure type as a focal to bilateral tonic-clonic seizure. Previously it has been known as a secondarily generalized tonic-clonic seizure. The focal features of the seizure may be clinically manifest or alternatively, the spread in brain networks may be so rapid that no preceding focal symptom or sign is identified with demonstration of the focal onset resting on investigations. Note that not all instances of a Bilateral tonic-clonic seizure with focal onset will be a Focal motor seizure, some will be a Focal non-motor seizure, thus one can only say that there is a Focal-onset. HP:0002069, HP:0007359