what is the effect of anesthesia on 28 weeks fetus?

Answer 1

It has been mentioned in the literatures that when general anesthesia is administered to the mother, only a portion of that anesthetic reaches the fetus-- the amount varying depending on the type of anesthetic.Anesthetics administered regionally do not reach the fetus. Local anesthesia has no any effect on the fetus. Many studies has been done to assess direct anesthesia effect on the fetus and so far no negative effect has been concluded.

The greatest concern from anesthesia effects affecting the baby however is the decrease in uterine blood flow and neonatal depression. Non-reassuring abnormal fetal heart rate patterns is amongst the insignificant effects frequently mentioned.

Answer 2

Anesthesia will knock the fetus out. Depending on the dosage, it can also cause the fetus to go into arrest, depressing all its bodily functions to critically low levels

Answer 3

Total intravenous anesthesia for partial laryngectomy in 28 weeks pregnant patient. Case report*


BACKGROUND AND OBJECTIVES: Anesthesia for pregnant patients is a challenge to the anesthesiologist because of the risks for mother and fetus. There are many complications described by the literature, such as fetal malformations, premature birth, maternal hemodynamic instability and even fetal death. The objective here is to show a 28 weeks pregnant patient submitted to partial laryngectomy under total intravenous general anesthesia with propofol, remifentanil and cisatracurium.
CASE REPORT: Patient 29 years, 59 kg, primigravida of 28 weeks with previous diagnosis of epidermoid carcinoma close to the right vocal chord, scheduled for laryngectomy. Initial monitoring consisted of noninvasive and invasive blood pressure, cardioscopy, oxicapnography and continuous cardiotocography accomplished by the obstetrician. Venous puncture in right and left arm with 16G and 18G catheter, respectively. Patient received intravenous midazolam (1 mg), cefazolin (1 g), metoclopramide (10 mg) and dipirone (1 g). Patient was oxygenated with 100% O2 under mask for 3 minutes and intravenous anesthesia was induced with propofol in controlled target infusion (3 µg.mL-1) and continuous remifentanil (1 µg.kg-1 in bolus and 0.2 µg.kg-1.min-1 for maintenance). Cisatracurium (13 mg) was administered for muscle relaxation and tracheal intubation was achieved with 6.5 mm spiral-reinforced cuffed tube. Anesthesia was maintained with propofol and remifentanil in infusion pump, in addition to cisatracurium complementation. Fetus was continuously monitored with cardiotocography accomplished and analyzed by the obstetrician. Propofol and remifentanil infusion pumps were turned off at the end of completion and patient woke up 10 minutes later, without pain and hemodynamically stable, being then referred to the post-anesthetic care unit.
CONCLUSIONS: Total intravenous anesthesia with propofol and remifentanil has provided hemodynamic stability for mother and fetus, with early and smooth emergence.


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Answer 4

My understanding is that there is minimal risk to the fetus. Make sure that your anesthesiologist is aware of your concerns and that he or she is skilled with your situation.

I have been in a number of surgeries where this is an issue and have not heard of any problem arising.

Answer 5

Make it sleepy