Effect of levothyrocine-thyroxine 4 replacement therapy on cognitive status in elderly patients with subclinical hypothyroidism
10.3760/cma.j.issn.1008-6315.2013.08.013
- VernacularTitle:甲状腺激素替代治疗对老年亚临床型甲状腺功能减退症患者认知功能改善的效果观察
- Author:
Ke XU
- Publication Type:Journal Article
- Keywords:
Subclinical hypothyroidism;
Thyroid hormone;
Montreal cognitive assessment;
Cognitive function
- From:
Clinical Medicine of China
2013;29(8):818-820
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of levothyrocine-thyroxine 4 (L-T4) replacement therapy on cognitive status in elderly patients with subclinical hypothyroidism (SCH).Methods One hundred and twenty elderly patients with SCH were selected and treated with thyroid hormone replacement therapy for 6 months.The thyroid functions and cognitive impairments were tested for all the subjects before and after the therapy.Results After 6 months of thyroid hormone replacement therapy,the level of thyrotropic hormone was significantly lower than that of before herapy((15.21 ± 1.78) mU/L vs.(3.46 ± 0.37) mU/L,t =6.417,P =0.0083));The neuropsyehological test performance in patients with hypothyroidism showed statistically significant improvements in clock drawing test,iconic memory,block design,complex graphics recall and delayed recall,trail making A,word list learningl,recall and recognize,forward and backward digital span,verbal fluency,and digital symbol from WAIS-RC ((8.74 ± 1.08) vs.(9.63 ± 1.32),(6.14 ± 1.03) vs.(8.47 ± 1.38),(30.36 ± 7.27) vs.(36.42 ±8.54),(13.71 ± 1.05) vs.(14.87 ± 1.38),(11.21 ± 1.13) vs.(13.56 ±1.34),(11.36 ± 1.27)vs.(13.06 ±1.47),(5.27 ±0.84) vs.(6.54 ±1.03),(63.13 ±12.09)vs.(54.63 ±10.07),(3.64 ± 1.07)vs.(4.91 ±1.32),(5.27 ±0.84) vs.(6.54±1.03),(8.52±1.16) vs.(9.83 ±0.96),(8.01 ± 0.83) vs.(8.94 ± 1.08),(4.04 ±0.57)vs.(5.37 ±0.75),(11.21 ± 1.03) vs.(13.43 ± 1.23),(33.46 ± 8.72) vs.(38.06 ± 9.58),t =13.907,11.027,12.093,16.374,10.361,11.536,8.794,-10.617,9.601,8.794,17.814,7.913,12.415,13.992,10.128 respectively,P =0.028,0.039,0.036,0.029,0.042,0.040,0.048,0.042,0.045,0.048,0.027,0.048,0.038,0.032,0.041 respectively).Conclusion The treatment of thyroid hormone for the edlerly patients with SCH has positive effects on theimprovement of mild cognitive impairment.
