Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 17 de 17
Filter
Add more filters










Publication year range
1.
Gynecol Endocrinol ; 26(3): 173-8, 2010 Mar.
Article in English | MEDLINE | ID: mdl-20148739

ABSTRACT

The aim of this study was to evaluate the effects of metformin in addition to diet and exercise on endocrine and metabolic disturbances in women with polycystic ovary syndrome (PCOS) in a prospective, double-blind, randomized, placebo (PBO) control trial. Thirty women with insulin resistance and PCOS received lifestyle modification and 1500 mg of metformin or placebo for 4 months. Before and after treatment, body mass index, waist/hip ratio, blood pressure, hirsutism, and menstrual patterns were evaluated. Serum concentrations of gonadotropins, androgens, progesterone, glucose, insulin, and lipids were measured. Lifestyle interventions resulted in similar weight and menstrual cycle's improvements in both groups. A significant reduction in serum fasting insulin, HOMA index, waist and testosterone levels was only observed with metformin. There were no significant changes in androstenedione, dehydroepiandrosterone sulfate, gonadotropins, and lipids levels. No other changes were observed in hirsutism or blood pressure. These findings suggest that metformin has an additive effect to diet and exercise to improve parameters of hyperandrogenism and insulin resistance. Although, a small decrease in body weight trough lifestyle changes could be enough to improve menstrual cycles in insulin-resistant women with PCOS.


Subject(s)
Hypoglycemic Agents/administration & dosage , Life Style , Metformin/administration & dosage , Polycystic Ovary Syndrome/therapy , Adult , Blood Pressure/physiology , Body Mass Index , Cholesterol/blood , Double-Blind Method , Female , Follicle Stimulating Hormone/blood , Hirsutism/physiopathology , Humans , Insulin Resistance/physiology , Luteinizing Hormone/blood , Menstrual Cycle/physiology , Polycystic Ovary Syndrome/blood , Polycystic Ovary Syndrome/drug therapy , Polycystic Ovary Syndrome/physiopathology , Statistics, Nonparametric , Testosterone/blood , Triglycerides/blood , Waist-Hip Ratio , Young Adult
2.
Medicina (B Aires) ; 66(6): 526-32, 2006.
Article in Spanish | MEDLINE | ID: mdl-17240623

ABSTRACT

UNLABELLED: The thyroid carcinoma (TC) is not very frequent among all cancers. Its course is slow and is high potentially curable. Our aim was to analyse the characteristics in patients with TC. A retrospective analysis on 171 patients, with an average age of 41.1 (+/- 14.6), who asked for TC to our service between the years 2000-04, was performed. From case histories it was evaluated: anamnesis, diagnostic image, histopathology and evolution. Tumours were grouped for size and TNM (tumour-nodule-metastasis) in stages (S). A stimulated serum thyroglobulin level >2 ng/ml and positive image with 131I or another nuclear marker were considered as positive for residual TC. In the totality of the analyzed patients 88% were female, 62% below 45 years old, and in 77% the thyroid function was normal. The fine needle aspiration (FNA) was diagnostic in 78%. Papillary thyroid carcinoma (PTC) in 96%. The 63% was SI; 14% SII; 19% SIII and 4% SIV. During follow-up, we observed that 90% of patients with Tg between 2 and 10 had evidence of residual TC, and 100% with Tg >10 ng/ml, whereas 18% of those whose stimulated Tg <2 presented positive image. There was not found significative correlation with pathologic antecedents or relevant image signs. IN CONCLUSION: TCP was the most frequent carcinoma in women, in patients younger than 45 years and in those who have euthyroid function. A stimulated serum thyroglobulin level was a good indicator for residual TC, but failed to select those patients who were disease free.


Subject(s)
Carcinoma, Papillary/pathology , Thyroid Neoplasms/pathology , Adult , Biomarkers, Tumor/blood , Carcinoma, Papillary/blood , Female , Goiter, Nodular/blood , Goiter, Nodular/pathology , Humans , Male , Middle Aged , Neoplasm Staging , Neoplasm, Residual , Prognosis , Retrospective Studies , Sex Factors , Thyroglobulin/blood , Thyroid Neoplasms/blood , Thyroid Nodule/blood , Thyroid Nodule/pathology , Thyrotropin/blood
3.
Medicina (B.Aires) ; 66(6): 526-532, 2006. tab
Article in Spanish | LILACS | ID: lil-453020

ABSTRACT

Entre todos los tumores, el carcinoma tiroideo (CT) es poco frecuente, se caracteriza por su lenta evolución y elevado porcentaje de curación. Nuestro objetivo es estudiar las características de los pacientes con CT. Analizamos retrospectivamente a 171 pacientes, edad media al diagnóstico 41.1( ± 14.6 años), que consultaron entre los años 2000-04 por CT. Se evaluaron datos de anamnesis, métodos de diagnóstico, anatomía patológica y evolución. Agrupamos a los tumores por el tamaño y según TNM (tumor-adenopatía-metástasis) en estadios (E). La presencia de tiroglobulina estimulada (Tg) > 2 ng/ml e imagen positiva (con 131I u otro radiotrazador) fueron consideradas como positivas para CT residual. De la población total el 88% fue sexo femenino, el 62% menores de 45 años, y el 77.1% tuvo función tiroidea normal. La punción con aguja fina (PAAF) fue diagnóstica en 78%. El 96% fue carcinoma papilar (CTP), 63% presentaban E I; 14% E II; 19% E III y 4% E IV. Se detectó CT residual en el 90% de los pacientes con Tg entre 2 y 10, y en el 100% con Tg > 10 ng/ml, mientras que con Tg < 2 el 18% mostró imagen positiva. No encontramos correlación significativa con antecedentes patológicos ni con ningún signo relevante en imágenes. En conclusión, en nuestra población el CTP fue predominante. Más frecuente en mujeres, en menores de 45 años y en eutiroideos. El nivel de Tg estimulada es un buen indicador de CT residual, pero no es una prueba suficiente para seleccionar pacientes libres de enfermedad


The thyroid carcinoma (TC) is not very frequent among all cancers. Its course is slow and is high potentially curable. Our aim was to analyse the characteristics in patients with TC. A retrospective analysis on 171 patients, with an average age of 41.1 (±14,6), who asked for TC to our service between the years 2000-04, was performed. From case histories it was evaluated: anamnesis, diagnostic image, histopathology and evolution. Tumours were grouped for size and TNM (tumour-nodule-metastasis) in stages (S). A stimulated serum thyroglobulin level > 2 ng/ml and positive image with 131I or another nuclear marker were considered as positive for residual TC. In the totality of the analyzed patients 88% were female, 62% below 45 years old, and in 77% the thyroid function was normal. The fine needle aspiration (FNA) was diagnostic in 78%. Papillary thyroid carcinoma (PTC) in 96%. The 63% was SI; 14% SII; 19% SIII and 4% SIV. During follow-up, we observed that 90% of patients with Tg between 2 and 10 had evidence of residual TC, and 100% with Tg > 10 ng/ml, whereas 18% of those whose stimulated Tg < 2 presented positive image. There was not found significative correlation with pathologic antecedents or relevant image signs. In conclusion: TCP was the most frequent carcinoma in women, in patients younger than 45 years and in those who have euthyroid function. A stimulated serum thyroglobulin level was a good indicator for residual TC, but failed to select those patients who were disease free


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Carcinoma, Papillary/pathology , Thyroid Neoplasms/pathology , Biopsy, Fine-Needle , Carcinoma, Papillary/blood , Goiter, Nodular/blood , Goiter, Nodular/pathology , Magnetic Resonance Spectroscopy , Microscopy, Scanning Tunneling , Neoplasm Metastasis , Neoplasm Staging , Neoplasm, Residual , Prognosis , Retrospective Studies , Sex Factors , Tomography Scanners, X-Ray Computed , Thyroglobulin/blood , Thyroid Neoplasms/blood , Thyroid Nodule/blood , Thyroid Nodule/pathology , Thyrotropin/blood , Biomarkers, Tumor/blood
4.
Medicina (B.Aires) ; 66(6): 526-532, 2006. tab
Article in Spanish | BINACIS | ID: bin-123176

ABSTRACT

Entre todos los tumores, el carcinoma tiroideo (CT) es poco frecuente, se caracteriza por su lenta evolución y elevado porcentaje de curación. Nuestro objetivo es estudiar las características de los pacientes con CT. Analizamos retrospectivamente a 171 pacientes, edad media al diagnóstico 41.1( ± 14.6 años), que consultaron entre los años 2000-04 por CT. Se evaluaron datos de anamnesis, métodos de diagnóstico, anatomía patológica y evolución. Agrupamos a los tumores por el tamaño y según TNM (tumor-adenopatía-metástasis) en estadios (E). La presencia de tiroglobulina estimulada (Tg) > 2 ng/ml e imagen positiva (con 131I u otro radiotrazador) fueron consideradas como positivas para CT residual. De la población total el 88% fue sexo femenino, el 62% menores de 45 años, y el 77.1% tuvo función tiroidea normal. La punción con aguja fina (PAAF) fue diagnóstica en 78%. El 96% fue carcinoma papilar (CTP), 63% presentaban E I; 14% E II; 19% E III y 4% E IV. Se detectó CT residual en el 90% de los pacientes con Tg entre 2 y 10, y en el 100% con Tg > 10 ng/ml, mientras que con Tg < 2 el 18% mostró imagen positiva. No encontramos correlación significativa con antecedentes patológicos ni con ningún signo relevante en imágenes. En conclusión, en nuestra población el CTP fue predominante. Más frecuente en mujeres, en menores de 45 años y en eutiroideos. El nivel de Tg estimulada es un buen indicador de CT residual, pero no es una prueba suficiente para seleccionar pacientes libres de enfermedad (AU)


The thyroid carcinoma (TC) is not very frequent among all cancers. Its course is slow and is high potentially curable. Our aim was to analyse the characteristics in patients with TC. A retrospective analysis on 171 patients, with an average age of 41.1 (±14,6), who asked for TC to our service between the years 2000-04, was performed. From case histories it was evaluated: anamnesis, diagnostic image, histopathology and evolution. Tumours were grouped for size and TNM (tumour-nodule-metastasis) in stages (S). A stimulated serum thyroglobulin level > 2 ng/ml and positive image with 131I or another nuclear marker were considered as positive for residual TC. In the totality of the analyzed patients 88% were female, 62% below 45 years old, and in 77% the thyroid function was normal. The fine needle aspiration (FNA) was diagnostic in 78%. Papillary thyroid carcinoma (PTC) in 96%. The 63% was SI; 14% SII; 19% SIII and 4% SIV. During follow-up, we observed that 90% of patients with Tg between 2 and 10 had evidence of residual TC, and 100% with Tg > 10 ng/ml, whereas 18% of those whose stimulated Tg < 2 presented positive image. There was not found significative correlation with pathologic antecedents or relevant image signs. In conclusion: TCP was the most frequent carcinoma in women, in patients younger than 45 years and in those who have euthyroid function. A stimulated serum thyroglobulin level was a good indicator for residual TC, but failed to select those patients who were disease free (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Thyroid Neoplasms/pathology , Carcinoma, Papillary/pathology , Thyroid Neoplasms/blood , Carcinoma, Papillary/blood , Thyroid Nodule/blood , Thyroid Nodule/pathology , Goiter, Nodular/blood , Goiter, Nodular/pathology , Thyrotropin/blood , Thyroglobulin/blood , Biomarkers, Tumor/blood , Neoplasm, Residual , Neoplasm Staging , Neoplasm Metastasis , Prognosis , Biopsy, Fine-Needle , Microscopy, Scanning Tunneling , Retrospective Studies , Sex Factors , Tomography Scanners, X-Ray Computed , Magnetic Resonance Spectroscopy
5.
Medicina (B.Aires) ; 66(6): 526-532, 2006. tab
Article in Spanish | BINACIS | ID: bin-119055

ABSTRACT

Entre todos los tumores, el carcinoma tiroideo (CT) es poco frecuente, se caracteriza por su lenta evolución y elevado porcentaje de curación. Nuestro objetivo es estudiar las características de los pacientes con CT. Analizamos retrospectivamente a 171 pacientes, edad media al diagnóstico 41.1( ± 14.6 años), que consultaron entre los años 2000-04 por CT. Se evaluaron datos de anamnesis, métodos de diagnóstico, anatomía patológica y evolución. Agrupamos a los tumores por el tamaño y según TNM (tumor-adenopatía-metástasis) en estadios (E). La presencia de tiroglobulina estimulada (Tg) > 2 ng/ml e imagen positiva (con 131I u otro radiotrazador) fueron consideradas como positivas para CT residual. De la población total el 88% fue sexo femenino, el 62% menores de 45 años, y el 77.1% tuvo función tiroidea normal. La punción con aguja fina (PAAF) fue diagnóstica en 78%. El 96% fue carcinoma papilar (CTP), 63% presentaban E I; 14% E II; 19% E III y 4% E IV. Se detectó CT residual en el 90% de los pacientes con Tg entre 2 y 10, y en el 100% con Tg > 10 ng/ml, mientras que con Tg < 2 el 18% mostró imagen positiva. No encontramos correlación significativa con antecedentes patológicos ni con ningún signo relevante en imágenes. En conclusión, en nuestra población el CTP fue predominante. Más frecuente en mujeres, en menores de 45 años y en eutiroideos. El nivel de Tg estimulada es un buen indicador de CT residual, pero no es una prueba suficiente para seleccionar pacientes libres de enfermedad (AU)


The thyroid carcinoma (TC) is not very frequent among all cancers. Its course is slow and is high potentially curable. Our aim was to analyse the characteristics in patients with TC. A retrospective analysis on 171 patients, with an average age of 41.1 (±14,6), who asked for TC to our service between the years 2000-04, was performed. From case histories it was evaluated: anamnesis, diagnostic image, histopathology and evolution. Tumours were grouped for size and TNM (tumour-nodule-metastasis) in stages (S). A stimulated serum thyroglobulin level > 2 ng/ml and positive image with 131I or another nuclear marker were considered as positive for residual TC. In the totality of the analyzed patients 88% were female, 62% below 45 years old, and in 77% the thyroid function was normal. The fine needle aspiration (FNA) was diagnostic in 78%. Papillary thyroid carcinoma (PTC) in 96%. The 63% was SI; 14% SII; 19% SIII and 4% SIV. During follow-up, we observed that 90% of patients with Tg between 2 and 10 had evidence of residual TC, and 100% with Tg > 10 ng/ml, whereas 18% of those whose stimulated Tg < 2 presented positive image. There was not found significative correlation with pathologic antecedents or relevant image signs. In conclusion: TCP was the most frequent carcinoma in women, in patients younger than 45 years and in those who have euthyroid function. A stimulated serum thyroglobulin level was a good indicator for residual TC, but failed to select those patients who were disease free (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Thyroid Neoplasms/pathology , Carcinoma, Papillary/pathology , Thyroid Neoplasms/blood , Carcinoma, Papillary/blood , Thyroid Nodule/blood , Thyroid Nodule/pathology , Goiter, Nodular/blood , Goiter, Nodular/pathology , Thyrotropin/blood , Thyroglobulin/blood , Biomarkers, Tumor/blood , Neoplasm, Residual , Neoplasm Staging , Neoplasm Metastasis , Prognosis , Biopsy, Fine-Needle , Microscopy, Scanning Tunneling , Retrospective Studies , Sex Factors , Tomography Scanners, X-Ray Computed , Magnetic Resonance Spectroscopy
6.
J Nucl Med ; 43(1): 61-5, 2002 Jan.
Article in English | MEDLINE | ID: mdl-11801704

ABSTRACT

UNLABELLED: A dose limit-based criterion was proposed to authorize hospital discharge of thyroid carcinoma patients treated with 131I. Evaluation of accumulated doses to determine the effective half-life, the expected accumulated dose at 1 m, and the hospitalization time was performed to ensure that the dose limit was satisfied for each patient. Situations involving different dose limits and occupancy factors were analyzed. This study dealt only with external exposure; the problem of internal contamination was not considered. METHODS: Fourteen patients treated postoperatively with 131I were studied. The range of activity was 1,110-8,175 MBq. Electronic dosimeters and thermoluminescent dosimeter chips were placed on the left pectoral muscle. Dose was measured for a mean of approximately 2.5 d. The accumulated doses were plotted as a function of time and then fitted using an exponential model to obtain the parameters of total accumulated dose and effective half-life. The doses to the public and relatives at 1 m were calculated with point source approximation and several occupancy factors. RESULTS: The fit function parameters of accumulated doses in the first 36 h predicted the behavior of the total accumulated dose within a 5% error in the parameters. Estimated values of the accumulated dose 1 m from the patient were generally <5 mSv, even for an occupancy factor of 100%. For more restrictive dose constraints, hospitalization times were calculated according to different occupancy factors, as suggested in the European Commission guide. From the fit of the measured data, values of effective half-life for each patient were obtained. CONCLUSION: To apply the dose limit-based criterion, one must calculate the patient-specific parameters, as can be done using the accumulated dose. Knowledge of patient-specific parameters ensures that the patient will not expose any individual to levels greater than the dose limit. The calculated hospitalization times were less than those recommended, especially for countries with more restrictive dose limits. The type of measurements performed in this study reveals more realistic doses for the treatment of thyroid carcinoma with 131I.


Subject(s)
Iodine Radioisotopes/therapeutic use , Radiation Protection , Thyroid Neoplasms/radiotherapy , Adolescent , Adult , Female , Half-Life , Humans , Iodine Radioisotopes/administration & dosage , Length of Stay , Male , Middle Aged , Patient Discharge , Patient Isolation , Radiometry , Radiotherapy Dosage , Thermoluminescent Dosimetry
7.
Exp. méd ; 16(1): 20-5, 1998.
Article in Spanish | LILACS | ID: lil-243325

ABSTRACT

RESUMEN: Se presenta un paciente con cáncer de tiroides y metástasis oséas múltiples diseminadas. Se detalla el cuadro clínico y los estudios complementarios hasta llegar al diagnóstico confirmado histológicamente. Se lo clasificó como cáncer tiroideo primario papilar subtipo folicular con compromiso ganglionar. Estadio IV (T4 N1 M1). Fue tratado con exéresis total de la glándula y I 131, Se obtuvo una apreciable mejoría.


Subject(s)
Carcinoma , Thyroid Neoplasms , Thyroiditis
8.
Exp. méd ; 16(1): 20-5, 1998.
Article in Spanish | BINACIS | ID: bin-14901

ABSTRACT

RESUMEN: Se presenta un paciente con cáncer de tiroides y metástasis oséas múltiples diseminadas. Se detalla el cuadro clínico y los estudios complementarios hasta llegar al diagnóstico confirmado histológicamente. Se lo clasificó como cáncer tiroideo primario papilar subtipo folicular con compromiso ganglionar. Estadio IV (T4 N1 M1). Fue tratado con exéresis total de la glándula y I 131, Se obtuvo una apreciable mejoría.(AU)


Subject(s)
Thyroid Neoplasms , Carcinoma , Thyroiditis
11.
Exp. méd ; 7(3): 22-4, jul.-set. 1989. tab
Article in Spanish | LILACS | ID: lil-103219

ABSTRACT

Se presenta un esquema terapéutico para el carcinoma tiroideo, poniendo énfasis en el valor de la cirugía del mismo en la fase intratiroidea y en el reemplazo hormonal adecuado y permanente, como factores principales de sobrevida


Subject(s)
Adult , Middle Aged , Humans , Male , Female , Thyroid Neoplasms/surgery , Thyroidectomy
12.
Exp. méd ; 7(3): 22-4, jul.-set. 1989. tab
Article in Spanish | BINACIS | ID: bin-26766

ABSTRACT

Se presenta un esquema terapéutico para el carcinoma tiroideo, poniendo énfasis en el valor de la cirugía del mismo en la fase intratiroidea y en el reemplazo hormonal adecuado y permanente, como factores principales de sobrevida (AU)


Subject(s)
Adult , Middle Aged , Humans , Male , Female , Thyroid Neoplasms/surgery , Thyroidectomy
14.
Rev. argent. cir ; 53(6): 289-91, dic. 1987. tab
Article in Spanish | LILACS | ID: lil-61989

ABSTRACT

Se presentan 10 pacientes con hiperparatiroidismo primario, 6 tenían más de 50 años de edad, 7 correspondieron al sexo femenino. Los adenomas solitarios fueron las lesiones más comunes. Los datos de laboratorio confirmaron el valor discriminativos de la calcemia elevada y de la relación cloro, fósforo, pues fueron positivas en todos los casos con adenoma y negativas en 1 paciente sin patología paratiroidea. La centellografía fue útil en el diagnóstico de localización en 3 casos. Nueve pacientes fueron operados, 1 con carcinoma avanzado de paratireoides murió antes de la exploración quirúrgica. La mortalidad quirúrgica fue nula y la morbilidad limitada


Subject(s)
Adult , Middle Aged , Humans , Male , Female , Adenoma , Hyperparathyroidism/surgery , Adenoma , Hypercalcemia/complications , Hyperparathyroidism/complications , Parathyroid Neoplasms/complications
15.
Rev. argent. cir ; 53(6): 289-91, dic. 1987. Tab
Article in Spanish | BINACIS | ID: bin-29978

ABSTRACT

Se presentan 10 pacientes con hiperparatiroidismo primario, 6 tenían más de 50 años de edad, 7 correspondieron al sexo femenino. Los adenomas solitarios fueron las lesiones más comunes. Los datos de laboratorio confirmaron el valor discriminativos de la calcemia elevada y de la relación cloro, fósforo, pues fueron positivas en todos los casos con adenoma y negativas en 1 paciente sin patología paratiroidea. La centellografía fue útil en el diagnóstico de localización en 3 casos. Nueve pacientes fueron operados, 1 con carcinoma avanzado de paratireoides murió antes de la exploración quirúrgica. La mortalidad quirúrgica fue nula y la morbilidad limitada (AU)


Subject(s)
Adult , Middle Aged , Aged , Humans , Male , Female , Hyperparathyroidism/surgery , Adenoma , Hyperparathyroidism/complications , Parathyroid Neoplasms/complications , Hypercalcemia/complications , Adenoma/diagnostic imaging
16.
Rev. nefrol. diál. traspl ; (15): 17-21, ago. 1986. ilus
Article in Spanish | LILACS | ID: lil-253636

ABSTRACT

En una paciente de 47 años con fiebre persistente y sin signos clínicos o bioquímicos del lugar de origen de la misma, se realizó un estudio centellográfico con citrato de galio-67 para pesquizar posibles focos ocultos de infección. El estudio mostró únicamente captación del radionucleido en ambos riñones en forma difusa e intensa. La biopsia renal mostró AIN. La paciente había recibido previamente ampicilina oral durante 7 días y no presentaba signos clínicos o de laboratorio que hicieran sospechar la lesión renal. Luego de la administración de esteroides la fiebre desapareció y hubo cambios significativos en un nuevo centellograma con galio-67.


Subject(s)
Humans , Gallium/toxicity , Nephritis, Interstitial/diagnosis
17.
Rev. nefrol. diálisis transpl ; (15): 17-21, ago. 1986. ilus
Article in Spanish | BINACIS | ID: bin-123840

ABSTRACT

En una paciente de 47 años con fiebre persistente y sin signos clínicos o bioquímicos del lugar de origen de la misma, se realizó un estudio centellográfico con citrato de galio-67 para pesquizar posibles focos ocultos de infección. El estudio mostró únicamente captación del radionucleido en ambos riñones en forma difusa e intensa. La biopsia renal mostró AIN. La paciente había recibido previamente ampicilina oral durante 7 días y no presentaba signos clínicos o de laboratorio que hicieran sospechar la lesión renal. Luego de la administración de esteroides la fiebre desapareció y hubo cambios significativos en un nuevo centellograma con galio-67. (AU)


Subject(s)
Humans , Gallium/toxicity , Nephritis, Interstitial/diagnosis
SELECTION OF CITATIONS
SEARCH DETAIL
...