Symptom Information: Sort according to HPO 

1
(HPO:0001250) Seizures rare [HPO:skoehler] 1245 / 7739
2
(HPO:0001251) Ataxia 413 / 7739
3
(HPO:0001257) Spasticity 251 / 7739
4
(HPO:0001263) Global developmental delay rare [HPO:skoehler] 853 / 7739
5
(HPO:0001332) Dystonia 197 / 7739
6
(HPO:0001712) Left ventricular hypertrophy rare [HPO:skoehler] 76 / 7739
7
(HPO:0002321) Vertigo 58 / 7739
8
(HPO:0002371) Loss of speech rare [HPO:skoehler] 15 / 7739
9
(HPO:0003128) Lactic acidosis 116 / 7739
10
(HPO:0001252) Muscular hypotonia 990 / 7739
11
(HPO:0001324) Muscle weakness 859 / 7739
12
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
13
(HPO:0010547) Muscle flaccidity 466 / 7739
14
(OMIM) Pyruvate oxidation defect 1 / 7739
15
(OMIM) Decreased thiamine pyrophosphate 1 / 7739
16
(OMIM) Encephalopathic episodes, often associated with infection 1 / 7739
17
(OMIM) Dizziness, episodic 1 / 7739
18
(OMIM) Normal cognition 7 / 7739
19
(OMIM) Disturbed gait 1 / 7739
20
(OMIM) Loss of gait (in some) 1 / 7739
21
(HPO:0001327) Photomyoclonic seizures 125 / 7739
22
(OMIM) Abnormal white matter signals, in the basal ganglia or cerebellum seen on brain MRI 1 / 7739
23
(OMIM) Lactic acidosis, episodic 2 / 7739
24
(OMIM) Metabolic crises 2 / 7739
25
(OMIM) Increased urinary alpha-ketoglutaric acid, intermittent 1 / 7739
26
(OMIM) Decreased serum thiamine pyrophosphate 1 / 7739
27
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
28
(HPO:0003812) Phenotypic variability 129 / 7739