Appeals court ruled it unconstitutional.
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partial birth abortion is not defined - and law as worded applies from conception and as described in effect ban all abortions.
Dilation & Extraction procedures are called D&X, Intact D&X, and Intrauterine cranial decompression
Fetuses that develop hydrocephalus (1 in 2000 fetuses - or about 5000 fetuses in the US each year) will not live if severe - and the choice is a hysterotomy, which is similar to a Cesarean section, or a D&X procedure, because the hydrocephalus is usually not discovered until the 3rd trimester (D&X for other reason are unethical in my opinion and I join with folks on the conservative/liberal "right to life" in saying they should be outlawed)
From:
http://www.religioustolerance.org/abo_pba.htm Why Are D&X Procedures Performed?
This is a topic that is rarely discussed during public debates:
1st Trimester: D&Xs are not performed during the first three months of pregnancy, because there are better ways to perform abortions. There is no need to follow a D&X procedure, because the fetus' head quite small at this stage of gestation and can be quite easily removed from the woman's uterus.
2nd Trimester: D&Xs are very rarely performed in the late second trimester at a time in the pregnancy before the fetus is viable. These, like most abortions, are performed for a variety of reasons, including: She is not ready to have a baby for whatever reason and has delayed her decision to have an abortion into the second trimester. As mentioned above, 90% of abortions are done in the first trimester.
There are mental or physical health problems related to the pregnancy.
The fetus has been found to be dead, badly malformed, or suffering from a very serious genetic defect. This is often only detectable late in the second trimester.
3rd Trimester: They are also very rarely performed in late pregnancy. The most common justifications at that time are: The fetus is dead.
The fetus is alive, but continued pregnancy would place the woman's life in severe danger.
The fetus is alive, but continued pregnancy would grievously damage the woman's health and/or disable her.
The fetus is so malformed that it can never gain consciousness and will die shortly after birth. Many which fall into this category have developed a very severe form of hydrocephalus.