Placental Transfer and Embryo-Fetal Effects of Drugs Used in Anesthesia

نویسنده

  • Márcio Leal Horta
چکیده

Justificativa e Objetivos A anestesia da paciente grávida engloba situações diversas e que devem ser analisadas com muita propriedade. Além da exposição do feto e de uma possível ação tóxica dos agentes a serem utilizados na anestesia, devem ser considerados o período gestacional, as características de cada droga e as doses a serem utilizadas. A falta de informações adequadas sobre o risco do uso de drogas na gestação torna difícil ao anestesiologista uma opção segura quando se vê diante da necessidade de anestesiar uma paciente grávida, tanto para cirurgia não obstétrica, como em cirurgia obstétrica. No primeiro caso, é importante evitar o parto prematuro (ou o aborto) e o aparecimento de alterações permanentes no feto. No segundo caso, não deve haver interferência na contrati l idade uterina nem depressão significativa no feto. A finalidade desta revisão é atualizar os conhecimentos sobre a passagem transplacentária e os efeitos maternofetais das drogas usadas em anestesia. Conteúdo São revisados os mecanismos de passagem transplacentária de drogas, os princípios fundamentais de embr io fe to tox ic idade e anal isados a lguns aspectos importantes sobre efeitos embriofetais das drogas utilizadas na anestesia. Também é apresentada a classificação de risco teratogênico, de acordo com o FDA, das drogas que o anestesiologista mais utiliza durante o ato anestésico. Conclusões Embora ainda persistam muitas dúvidas em relação à escolha de drogas para a anestesia de pacientes grávidas, o anestesiologista dispõe hoje de novas drogas e de informações que lhe permitem oferecer maior segurança para o binômio mãe-feto.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Pmn-19: A Comparison of Neonatal Outcomes following Transfer of Frozen and Fresh Embryo

Background: Currently, frozen embryo transfers contribute an increasing rate of births from assisted reproductive technologies such as in vitro fertilization (IVF). However, very few studies evaluated the neonatal outcomes from frozen embryo transfer. This study aimed to investigate and compare the neonatal outcomes from frozen embryo transfer versus fresh embryo transfers. Materials and Method...

متن کامل

P-122: Morphine Effects on Placental Layers in Wistar Rats

Background: Experiments have shown that opioid drugs abuse during pregnancy can cause a delay in the development of the placenta. In mammals, the placenta is the most important channel for the exchange of Materialss between the maternal and fetal bloods. The present study investigates the time-dependent effect of the addiction duration of maternal morphine consumption during pregnancy. Material...

متن کامل

P-27: The Effect of Oral Morphine Consumptionon Plasma Corticosteron Density and PlacentaDevelopment in Pregnant Wistar Rats

Background: Previous studies have shown that morphine consumption during pregnancy may delay embryo development or cause abnormal nervous system function .The most attention of research focuses on the embryo, whereas it was not attended to the placenta as an important organ which is affected by opioides. The present study focused on the effect of maternal morphine consumption on development of ...

متن کامل

The cumulative effect of assisted reproduction procedures on placental development and epigenetic perturbations in a mouse model.

Assisted reproductive technologies (ART) are associated with several complications including low birth weight, abnormal placentation and increased risk for rare imprinting disorders. Indeed, experimental studies demonstrate ART procedures independent of existing infertility induce epigenetic perturbations in the embryo and extraembryonic tissues. To test the hypothesis that these epigenetic per...

متن کامل

The Comparison Between the Pregnancy Outcome after Easy Embryo Transfer and Difficult Embryo Transfer

Background: The role of embryo transfer (ET) in the success of in vitro fertilization/intra cytoplasmic sperm injection treatment is not well understood. In the present study we classified ET technique as difficult and easy types according to certain strict criteria, and compared the pregnancy outcome of the two ET types. Methods: This study was performed retrospectively on 295 infertile patien...

متن کامل

Effect of Aspirin Consumption during Pregnancy on Fetal and Placental Weights and Histomorphometric Changes of the Fetal Stomach in Rats

  Background & Objective: Due to the relevant use of aspirin to relieve pain and common symptoms of gastric ulcer and possible malicious effects on fetus, this study investigates the histomorphologic effects of aspirin on the stomach tissue in rat embryos.    Materials & Methods: In this experimental study, 30 pregnant female rats were randomly divided into six groups including control group wi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003