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1.
Arq. neuropsiquiatr ; 62(1): 26-32, mar. 2004. tab
Article in English | LILACS | ID: lil-357830

ABSTRACT

Nós apresentamos previamente que a hemorragia subaracnoidea devido à ruptura de aneurisma intracraniano (SH) está associada com alterações no perfil hormonal nas primeiras 24 horas após o evento. Nós propusemos que as alterações hormonais observadas são devidas ao intenso estresse ao qual os pacientes estão expostos. Contudo, o perfil hormonal tireoidiano é indicativo da presença da síndrome da doença não tireoidiana (NTIS). Neste trabalho, examinamos se as alterações no perfil dos hormônios tireoidianos são compatíveis com a NTIS. Dois grupos de pacientes foram incluídos no estudo: A) 30 pacientes com SH (21 mulheres e 9 homens; 41,7±11,4 anos) e B) um grupo controle incluindo 25 pacientes com doenças benignas da coluna (BDS) (hérnia de disco lombar ou estável trauma da coluna) (8 mulheres e 17 homens; 41,3±14,2 anos). Em um subgrupo de oito pacientes de cada grupo os níveis séricos de triiodotironina (T3) e T3 reverso foram medidos. As amostras de sangue foram obtidas entre 8:00 e 9:00. Os seguintes resultados foram obtidos: o grupo SH teve menores níveis de T3 e T4 livre do que o grupo BDS (p<0,05): T3 (ng/ml): SH = 58,7±1,1 e BDS = 74,5±13,9; T4 livre (ng/dl): SH = 0,9±0,2 e BDS = 1,1±0,3. Não ocorreram diferenças significativas nos níveis de tiroxina total (T4) e de hormônio estimulante da tireóide (TSH) entre os dois grupos: T4 (µg/dl): SH = 6,9±1,1 e BDS = 7,4±2,1; TSH (µUI/ml): SH = 1,5±0,8 e BDS = 1,8±1,0. Na amostra de oito pacientes de cada grupo tivemos os seguintes resultados: T3 (ng/ml): SH = 66,8±3,8 e BDS = 77,2±1,1 (p <0,05); T3 reverso (ng/dl): SH = 32,8±8 e BDS = 24,7±2,2 (NS); relação T3/ T3 reverso: SH = 2,6±0,3 e BDS = 3,3±0,4 (NS). Anticorpos antitireoglobulina e antimicrossomal não foram detectáveis, exceto em um paciente no grupo SH. Em conclusão: os pacientes com SH apresentam níveis séricos de T3 e T4 livre significativamente menores do que aqueles com BDS; o perfil hormonal tireoidiano sugere que os pacientes com SH desenvolvem a síndrome da doença não tireoidiana.


Subject(s)
Humans , Male , Female , Aneurysm, Ruptured , Intracranial Aneurysm , Subarachnoid Hemorrhage , Thyroid Hormones , Aneurysm, Ruptured , Biomarkers , Case-Control Studies , Intracranial Aneurysm , Subarachnoid Hemorrhage , Syndrome , Thyrotropin , Thyroxine , Triiodothyronine
2.
Arq. neuropsiquiatr ; 61(1): 14-19, mar. 2003. tab
Article in English | LILACS | ID: lil-331152

ABSTRACT

It is well known that the central nervous system (CNS) influences the pituitary hormone secretions and that diseases of CNS are frequently associated with an altered endocrine function. The aim of this study has been the evaluation of the serum concentrations of the pituitary and thyroid hormones in a series of patients with subarachnoid hemorrhage due to a ruptured cerebral aneurysm. Thirty-five patients (23 females and 12 males), aged 51.9±13.3 years on the mean were admitted. They were evaluated to assess the clinical severity of the subarachnoid hemorrhage by Hunt & Hess scale: nine patients were in the grade I, 14 in the grade II, and 12 in the grade III. Blood samples were obtained between 8:00 and 9:00 a.m. and serum hormones were measured by commercial kits (IRMA or MEIA methods). Cortisol serum levels (normal range (NR) = 5 to 18 µg/dL) were increased in all the patients (mean ± standard deviation = 31.4±12.4 µg/dL). Mean prolactin levels (NR < 20 ng/mL) were 18.6±17.1 ng/mL and five patients (14.2 percent) had levels higher than normal. FSH and LH levels were normal according to age and sex: men: FSH = 4±2.9 mUI/mL (NR = 1 to 10.5 mUI/mL); LH = 6.1±6.3 mUI/mL (NR = 2 to 12 mUI/mL); premenopausa women: FSH = 2.5±1.5 mUI/mL (NR = 2.4 to 9.3 mUI/mL); LH 3.9±5.1 mUI/mL (NR =2 to 15 mUI/mL); post- menopausal women: FSH = 48.3±18.5 mUI/mL (NR =31 to 134 mUI/mL); LH = 29±13.8 mUI/mL (NR =16 to 64 mUI/mL). Mean TSH levels were 3.9±5.2 µUI/mL (NR =0.5 to 4.7 µUI/mL) and five patients (14.2 percent) had levels higher than normal. Mean triiodothyronine levels (T3) were 66.4±18.7 ng/dL (NR = 45 to 137 ng/dL) and five patients (14.2 percent) had levels lower than normal (33.8±9 ng/dL). Mean thyroxine levels (T4) (NR= 4.5 to 12.5 µg/dL) were 7.4±1.7 µg/dL and two patients (5.6 percent) had levels lower than normal. Thyroglobulin and microsomal antibodies were not detectable. Conclusions: In the first 24 hours following ictus, the hormonal changes may be due to the stress produced by the intracranial bleeding; thyroid hormone alterations suggest that patients with subarachnoid hemorrhage might have an euthyroid sick syndrome


Subject(s)
Humans , Male , Female , Middle Aged , Intracranial Aneurysm , Pituitary Hormones , Subarachnoid Hemorrhage , Thyroid Hormones , Analysis of Variance , Hydrocortisone , Intracranial Aneurysm , Pituitary Gland , Rupture, Spontaneous , Severity of Illness Index , Subarachnoid Hemorrhage
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