Event-related brain potentials in patients with hypothyroidism

To evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials (ERPs). We investigated alterations of P300 latency in patients with hypothyroidism before treatment and after restoration of euthyroidism. ERPs were elicited in 14 untreated p...

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Published inEndocrine practice Vol. 3; no. 6; pp. 349 - 352
Main Authors Ozata, M, Ozkardes, A, Corakci, A, Beyhan, Z, Gundogan, M A
Format Journal Article
LanguageEnglish
Published United States Elsevier Limited 01.11.1997
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Abstract To evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials (ERPs). We investigated alterations of P300 latency in patients with hypothyroidism before treatment and after restoration of euthyroidism. ERPs were elicited in 14 untreated patients with hypothyroidism (mean age, 26.71 +/- 2.39 years) and in a group of 30 control subjects with comparable mean age, sex distribution, and educational level. ERP recordings were repeated at 1 and 6 months after attainment of euthyroidism. Untreated patients with hypothyroidism had longer P300 and N1 wave latencies in comparison with those in the control subjects (P = 0.003 and P = 0.018, respectively). The mean P300 latencies did not change significantly 1 month after restoration of euthyroidism. At 6 months after attainment of euthyroidism, however, the mean P300 latencies returned to normal values, similar to those in the control subjects. We conclude that P300 latencies are impaired in patients with hypothyroidism, which is indicative of cognitive dysfunction. These alterations, however, may be reversed 6 months after attainment of euthyroidism.
AbstractList To evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials (ERPs). We investigated alterations of P300 latency in patients with hypothyroidism before treatment and after restoration of euthyroidism. ERPs were elicited in 14 untreated patients with hypothyroidism (mean age, 26.71 +/- 2.39 years) and in a group of 30 control subjects with comparable mean age, sex distribution, and educational level. ERP recordings were repeated at 1 and 6 months after attainment of euthyroidism. Untreated patients with hypothyroidism had longer P300 and N1 wave latencies in comparison with those in the control subjects (P = 0.003 and P = 0.018, respectively). The mean P300 latencies did not change significantly 1 month after restoration of euthyroidism. At 6 months after attainment of euthyroidism, however, the mean P300 latencies returned to normal values, similar to those in the control subjects. We conclude that P300 latencies are impaired in patients with hypothyroidism, which is indicative of cognitive dysfunction. These alterations, however, may be reversed 6 months after attainment of euthyroidism.
The objective of this study was to evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials (ERP). Researchers investigated alterations of P300 latency in patients with hypothyroidism before treatment and after restoration of euthyroidism. ERPs were elicited in 14 untreated patients with hypothyroidism and in a group of 30 control subjects with comparable mean age, sex distribution, and educational level. ERP recordings were repeated at 1 and 6 months after attainment of euthyroidism. Untreated patients with hypothyroidism had longer P300 and N1 wave latencies in comparison with those in the control subjects. The mean P300 latencies did not change significantly 1 month after restoration of euthyroidism. At 6 months after attainment of euthyroidism, however, the mean P300 latencies returned to normal values, similar to those in the control subjects. Researchers have concluded that P300 latencies are impaired in patients with hypothyroidism, which is indicative of cognitive dysfunction.
OBJECTIVETo evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials (ERPs). METHODSWe investigated alterations of P300 latency in patients with hypothyroidism before treatment and after restoration of euthyroidism. ERPs were elicited in 14 untreated patients with hypothyroidism (mean age, 26.71 +/- 2.39 years) and in a group of 30 control subjects with comparable mean age, sex distribution, and educational level. ERP recordings were repeated at 1 and 6 months after attainment of euthyroidism. RESULTSUntreated patients with hypothyroidism had longer P300 and N1 wave latencies in comparison with those in the control subjects (P = 0.003 and P = 0.018, respectively). The mean P300 latencies did not change significantly 1 month after restoration of euthyroidism. At 6 months after attainment of euthyroidism, however, the mean P300 latencies returned to normal values, similar to those in the control subjects. CONCLUSIONWe conclude that P300 latencies are impaired in patients with hypothyroidism, which is indicative of cognitive dysfunction. These alterations, however, may be reversed 6 months after attainment of euthyroidism.
Author Beyhan, Z
Ozkardes, A
Ozata, M
Corakci, A
Gundogan, M A
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Snippet To evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials (ERPs). We investigated alterations...
The objective of this study was to evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials...
OBJECTIVETo evaluate the cognitive function of patients with hypothyroidism, based on long-latency auditory event-related potentials (ERPs). METHODSWe...
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