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Radioiodine therapy and subsequent pregnancy
Brandão, Carmen Dolores G; Miranda, Angélica E; Corrêa, Nilson Duarte; Sieiro Netto, Lino; Corbo, Rossana; Vaisman, Mario.
  • Brandão, Carmen Dolores G; Hospital Universitário Clementino Fraga Filho. Department of Endocrinology and Nuclear Medicine. Rio de Janeiro. BR
  • Miranda, Angélica E; Hospital Universitário Clementino Fraga Filho. Department of Endocrinology and Nuclear Medicine. Rio de Janeiro. BR
  • Corrêa, Nilson Duarte; Hospital Universitário Clementino Fraga Filho. Department of Endocrinology and Nuclear Medicine. Rio de Janeiro. BR
  • Sieiro Netto, Lino; Hospital Universitário Clementino Fraga Filho. Department of Endocrinology and Nuclear Medicine. Rio de Janeiro. BR
  • Corbo, Rossana; Hospital Universitário Clementino Fraga Filho. Department of Endocrinology and Nuclear Medicine. Rio de Janeiro. BR
  • Vaisman, Mario; Hospital Universitário Clementino Fraga Filho. Department of Endocrinology and Nuclear Medicine. Rio de Janeiro. BR
Arq. bras. endocrinol. metab ; 51(4): 534-540, jun. 2007. tab, graf
Article in English | LILACS | ID: lil-457089
ABSTRACT

OBJECTIVES:

To evaluate abortion and fetal congenital anomaly rates in women previously submitted to radioiodine therapy for differentiated thyroid carcinoma. STUDY

DESIGN:

A case-control study of 108 pregnant women, 48 cases whose pregnancies were evaluated after they had undergone radioiodine therapy for differentiated thyroid carcinoma, and the control group consisted of 60 healthy pregnant women.

RESULTS:

Of a total of 66 pregnancies, 14 conceived within the first year, 51 one or more years after the last administration of 131I, the medical record of one patient was not available. The interval between the last radioiodine therapy administration and conception ranged from 1 month to 10 years. There were a total of 4 miscarriages, 2 of them for unknown reasons. There was one case of congenital anomaly and two preterms birth. Nine women presented the following pregnancy events placental insufficiency, hypertensive crisis, placental detachment, risk of miscarriage, preterm labour and four miscarriages. No statistical difference was observed between the studied and control groups.

CONCLUSION:

Radioiodine was followed by no significant increase in untoward effects in neither the pregnancy nor the offspring.
RESUMO

OBJETIVO:

Avaliar a taxa de aborto e anomalia congênita em mulheres que engravidaram após radioiodoterapia para carcinoma diferenciado de tireóide. PACIENTES E

MÉTODO:

Estudo de caso controle com 108 mulheres, 48 submetidas à radioiodoterapia para carcinoma diferenciado de tireóide e 60 mulheres saudáveis (grupo controle).

RESULTADOS:

De 66 gestações (grupo de pacientes que receberam radioiodo), 14 ocorreram no primeiro ano e 51 mais de um ano após a administração do 131I. Não foi possível coletar dados de uma paciente. O intervalo entre a última dose de 131I e a concepção variou de 1 mês a 10 anos. Ocorreram 4 abortos, 2 de causas desconhecidas. Houve 1 caso de anomalia congênita e 2 pretermos. Nove pacientes que receberam 131I apresentaram intercorrências durante a gravidez insuficiência placentária, crise hipertensiva, descolamento de placenta, ameaça de aborto, trabalho de parto prematuro e 4 abortos. Não houve diferença estatística entre o grupo estudado e o controle.

CONCLUSÃO:

O uso da radioiodoterapia para carcinoma diferenciado de tireóide em mulheres não foi relacionado com aumento de efeitos adversos nas mães e suas proles.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Pregnancy Complications, Neoplastic / Abnormalities, Radiation-Induced / Pregnancy / Thyroid Neoplasms / Carcinoma, Papillary / Iodine Radioisotopes Type of study: Observational study / Prognostic study / Risk factors Limits: Adolescent / Adult / Female / Humans / Infant, Newborn Language: English Journal: Arq. bras. endocrinol. metab Journal subject: Endocrinology / Metabolism Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Universitário Clementino Fraga Filho/BR

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Full text: Available Index: LILACS (Americas) Main subject: Pregnancy Complications, Neoplastic / Abnormalities, Radiation-Induced / Pregnancy / Thyroid Neoplasms / Carcinoma, Papillary / Iodine Radioisotopes Type of study: Observational study / Prognostic study / Risk factors Limits: Adolescent / Adult / Female / Humans / Infant, Newborn Language: English Journal: Arq. bras. endocrinol. metab Journal subject: Endocrinology / Metabolism Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Universitário Clementino Fraga Filho/BR