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1.
Arch. endocrinol. metab. (Online) ; 63(4): 320-327, July-Aug. 2019. tab, graf
Article in English | LILACS | ID: biblio-1019363

ABSTRACT

ABSTRACT Objective To describe the long term safety and efficacy of pegvisomant (PEGV), and the predictors of treatment response in patients with acromegaly in the real life setting. Subjects and methods We retrospectively reviewed the clinical, hormonal and radiological data of acromegalic patients treated with PEGV in 17 Argentine centers. Results Seventy-five patients (age range 22-77, 51 females) with acromegaly have been treated with PEGV for up to 118 months (median 27 months). Before PEGV, 97.3% of patients had been treated with medical therapy, surgery and/or radiotherapy, two patients had no previous treatment. At that time, all patients had an IGF-1 above the upper normal limit (ULN) (mean 2.4 x ULN ± 0.98, range 1.25-7). At diagnosis of acromegaly 84% presented macroadenomas, prior to PEGV only 23,5% of patients remained with tumor remnant > 1 cm, the remaining showed normal or less than 1 cm images. Disease control (IGF-1 ≤ 1.2 x ULN) was achieved in 62.9% of patients with a mean dose of 11.8 mg/day. Thirty-four patients (45%) received PEGV monotherapy, while 41 (55%) received combined therapy with either somatostatin analogues and/or cabergoline. Adverse events related to PEGV were: local injection site reaction in 5.3%, elevated liver enzymes in 9.3%, and tumor size growth in 9.8%. Pre-PEGV IGF-I level was the only predictor of treatment response: 2.1 x ULN vs 2.8 x ULN in controlled and uncontrolled patients respectively (p < 0.001). Conclusion this long term experience indicates PEGV treatment was highly effective and safe in our series of Argentine patients with acromegaly refractory to standard therapies. Arch Endocrinol Metab. 2019;63(4):320-7


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Acromegaly/drug therapy , Somatostatin/analogs & derivatives , Dopamine Agonists/therapeutic use , Human Growth Hormone/analogs & derivatives , Cabergoline/therapeutic use , Argentina , Insulin-Like Growth Factor I/analysis , Predictive Value of Tests , Retrospective Studies , Follow-Up Studies , Treatment Outcome , Dopamine Agonists/administration & dosage , Human Growth Hormone/administration & dosage , Human Growth Hormone/therapeutic use , Drug Therapy, Combination , Cabergoline/administration & dosage
2.
Medicina (B.Aires) ; 66(5): 457-460, 2006. ilus
Article in Spanish | LILACS | ID: lil-451717

ABSTRACT

Presentamos el caso de una mujer de 66 años con diagnóstico de hiperparatiroidismo primariopor adenoma paratiroideo ectópico mediastinal realizado por gammagrafía paratiroidea con 99mtcmetoxi-isobutil-isonitrito (Tc99-MIBI). Fue intervenida exitosamente mediante la técnica de videotoracoscopia.Durante el procedimiento se utilizó la medición de parathormona y a los 10 minutos de extirpado el adenoma seobtuvo un descenso mayor del 50% del basal. La sonda de detección gamma no fue efectiva in situ por la superposicióndel radioisótopo con el miocardio pero confirmó la radioactividad dentro del quirófano una vez extirpadoel adenoma. La paciente normalizó los valores de calcemia y parathormona en el postoperatorio y permaneciónormocalcémica luego de 9 meses de seguimiento. En nuestro caso, la localización prequirúrgica y elmonitoreo de parathormona intraoperatoria fueron de gran utilidad para el éxito quirúrgico, la sonda detectora marcada con Tc99-MIBI no fue efectiva in situ pero confirmó la radioactividad una vez extirpado el adenoma. El tratamiento quirúrgico endoscópico por videotoracoscopia fue bien tolerado, menos doloroso que la toracotomía y acortó el tiempo de internación


We report a 66 years old woman with a diagnosis of primary Hyperparathyroidism. Localization to mediastinum was obtained with parathyroid scintigraphy using 99mtc-methoxyisobutyl-isonitrite (Tc99-MIBI). The patient was successfully operated upon by means of a videothora-coscopicapproach. During the procedure serum parathormone was measured before and 10 minutes after adenomectomy,showing a more than 50% reduction from the basal level. An attempt to detect the precise site of the adenomawith a Tc99-MIBI probe was unsuccessful because of its proximity to the myocardium, but radioactivity was confirmed on the surgical specimen after resection. The patient’s calcemia and parathormone levels became normalduring the postoperative course and she remains normocalcemic 9 months after the procedure. In our case,preoperative localization and intraoperative parathormone measurements were both very useful for confirming surgical success; the intraoperative localization with a radioactive probe was not useful, but radioactivity was confirmedafter resection on the surgical specimen. The endoscopic surgical procedure with videothoracoscopy waswell tolerated, less painful than a thoracotomy, and it shortened the hospitalization period


Subject(s)
Humans , Female , Aged , Adenoma , Hyperparathyroidism, Primary , Mediastinal Neoplasms , Parathyroid Neoplasms , Radiopharmaceuticals , Adenoma/complications , Adenoma/surgery , Calcium/blood , Calcium/urine , Hyperparathyroidism, Primary/etiology , Hyperparathyroidism, Primary/surgery , Mediastinal Neoplasms/complications , Mediastinal Neoplasms/surgery , Monitoring, Intraoperative/methods , Preoperative Care , Parathyroid Hormone/blood , Parathyroid Neoplasms/complications , Parathyroid Neoplasms/surgery , Parathyroidectomy/methods , Sensitivity and Specificity , Treatment Outcome , Thoracic Surgery, Video-Assisted/methods
4.
Medicina (B.Aires) ; 56(2): 143-9, 1996. tab, graf
Article in Spanish | LILACS | ID: lil-172297

ABSTRACT

Se revisaron 117 casos de cáncer de tiroides resgistrados a lo largo de veinte años en el Hospital Privado de Comunidad de Mar del Plata, para analizar las variables que influyeron en su evolución y poder comparadas con otras casuísticas. Del análises de los datos se desprende un porcentaje similar a otras series para las variables histológicas, con un predominio del sexo feminino (4,2:1). Un tercio de los pacientes tenía algún antecedente tiroideo previo. La edad de presentación fue significativamente mayor en aquellos pacientes que recidivaron o fallecieron como consecuencia de la enfermidad. Adquirió importancia en la evolución el estado tumoral al momento deldiagnóstico y el subtipo histológico, no pudiendo confirmarse que el sexo, el tipo de cirurgía o el tratamiento hormonal suprersor tuvieran significación pronóstica. La punción aspiración con aguja fina mostró un elevado valor predictivo positivo (96 por ciento) con una sensibilidad moderada (75 por ciento). Se observó además una merma gradual de las complicaciones posquirúrgicas; el último caso de hipoparatiroidismo posoperatorio permanente se registró en 1986.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Thyroid Neoplasms , Aged, 80 and over , Biopsy, Needle , Neoplasm Recurrence, Local , Prognosis , Retrospective Studies , Survival Rate , Thyroid Neoplasms/diagnosis , Thyroid Neoplasms/mortality , Thyroid Neoplasms/surgery , Thyroidectomy
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