Biomaterial Database

[Effect of hyperlipidemia and hypothyroidism on auditory evoked brain stem responses]. 1990

D Höhmann, and G Kahaly, and J Warzelhan

Klinik und Poliklinik für Hals-, Nasen- und Ohrenkranke, Universität Würzburg.

Temporary changes in audiometry have been reported in hypercholesterolaemia and in hypo- and hyperthyroidism. The purpose of the present prospective and controlled study was to record changes in conduction time of auditory brain-stem response (ABR) in patients with hyperlipidaemia and hypothyroidism before and after therapy over a period of 6 months. The acoustic evoked brain-stem response Jewett waves I-V were delayed in patients with hypercholesterolaemia, hypertrigliceridaemia and hypothyroidism in comparison with an age-matched control group. The changes in pure-tone threshold and brain-stem responses correlated with the degree of hyperlipidaemia or hypothyroidism. After treatment the brain-stem responses of hypothyroid patients tended to return to normal, and in a few cases normal pure-tone thresholds were achieved. Of the patients with hypercholesterolaemia and hypertrigliceridaemia, 28% had improvements in pure-tone thresholds, whereas no significant changes were found in the ABR following therapy.

UI	MeSH Term	Description	Entries
D006949	Hyperlipidemias	Conditions with excess LIPIDS in the blood.	Hyperlipemia,Hyperlipidemia,Lipemia,Lipidemia,Hyperlipemias,Lipemias,Lipidemias
D007037	Hypothyroidism	A syndrome that results from abnormally low secretion of THYROID HORMONES from the THYROID GLAND, leading to a decrease in BASAL METABOLIC RATE. In its most severe form, there is accumulation of MUCOPOLYSACCHARIDES in the SKIN and EDEMA, known as MYXEDEMA. It may be primary or secondary due to other pituitary disease, or hypothalamic dysfunction.	Central Hypothyroidism,Primary Hypothyroidism,Secondary Hypothyroidism,TSH Deficiency,Thyroid-Stimulating Hormone Deficiency,Central Hypothyroidisms,Deficiency, TSH,Deficiency, Thyroid-Stimulating Hormone,Hormone Deficiency, Thyroid-Stimulating,Hypothyroidism, Central,Hypothyroidism, Primary,Hypothyroidism, Secondary,Hypothyroidisms,Primary Hypothyroidisms,Secondary Hypothyroidisms,TSH Deficiencies,Thyroid Stimulating Hormone Deficiency,Thyroid-Stimulating Hormone Deficiencies
D011930	Reaction Time	The time from the onset of a stimulus until a response is observed.	Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D001933	Brain Stem	The part of the brain that connects the CEREBRAL HEMISPHERES with the SPINAL CORD. It consists of the MESENCEPHALON; PONS; and MEDULLA OBLONGATA.	Brainstem,Truncus Cerebri,Brain Stems,Brainstems,Cerebri, Truncus,Cerebrus, Truncus,Truncus Cerebrus
D002784	Cholesterol	The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils.	Epicholesterol
D004569	Electroencephalography	Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.	EEG,Electroencephalogram,Electroencephalograms
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006937	Hypercholesterolemia	A condition with abnormally high levels of CHOLESTEROL in the blood. It is defined as a cholesterol value exceeding the 95th percentile for the population.	Hypercholesteremia,Elevated Cholesterol,High Cholesterol Levels,Cholesterol Level, High,Cholesterol Levels, High,Cholesterol, Elevated,Cholesterols, Elevated,Elevated Cholesterols,High Cholesterol Level,Hypercholesteremias,Hypercholesterolemias,Level, High Cholesterol,Levels, High Cholesterol
D001309	Auditory Threshold	The audibility limit of discriminating sound intensity and pitch.	Auditory Thresholds,Threshold, Auditory,Thresholds, Auditory
D012815	Signal Processing, Computer-Assisted	Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.	Digital Signal Processing,Signal Interpretation, Computer-Assisted,Signal Processing, Digital,Computer-Assisted Signal Interpretation,Computer-Assisted Signal Interpretations,Computer-Assisted Signal Processing,Interpretation, Computer-Assisted Signal,Interpretations, Computer-Assisted Signal,Signal Interpretation, Computer Assisted,Signal Interpretations, Computer-Assisted,Signal Processing, Computer Assisted