Term
| why abortion late in pregnancy? |
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Definition
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Prenatal diagnosis outcome ;
Obstetrical complication;
Disenfranchised population
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Term
| what are second trimester abortion methods? |
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Definition
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Instillation;
Induction;
Dilation and Curettage (D&C) ;
(up to 14-15 weeks)
Dilation and Evacuation (D&E);
Dilation and Extraction (D&X)
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Term
| Describe D and E vs amniotic instillation |
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Definition
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D&E compared to amniotic instillation:
< 1/2 risk of major complications with D&E:
Hemorrhage;
Retained products of conception;
Endometritis;
Uterine perforation more frequent with D&E
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Term
| what is amniotic instillation? |
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Definition
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Instillation abortion is a rarely-used method of induced abortion. It is most frequently used between the 16th and 24th week of pregnancy. [1] It is performed by injecting a chemical solution consisting of either saline, urea, or prostaglandin through the abdomen and into the amniotic sac. The cervix is dilated prior to the injection, and the chemical solution induces uterine contractions which expel the fetus. [2] Sometimes a dilation and curettage procedure is necessary to remove any remaining tissue. [1]
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Term
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Definition
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D&E compared to labor induction:
Decreased cost;
Decreased time to expulsion;
Increased efficacy;
Increased safety;
Can be performed in the outpatient setting
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Term
| During the 2nd trimester, how do you prepare the cervix? |
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Definition
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either with pharma agents (mifepristone or misoprostol) or with osmotic dialators
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Term
| what does Mifepristone and misopristone do to the cervix? |
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Definition
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Mifepristone:
effective if used > 24 hours pre-op
Misoprostol
effective for 1st trimester procedures
mixed results for 2nd trimester procedures
increased risk of unanticipated expulsion
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Term
| What do osmotic dialators do to the cervix? |
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Definition
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uterine injury
Exert gentle radial pressure on endocervical canal
Increases release of prostaglandins in the cervix
Placed 4-8 hours pre-op <16 weeks GA
Placed 24 hours pre-op >16 weeks GA
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Term
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Definition
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Instruments;
Cervical dilation;
(Reduces uterine perforation 85%)
Surgeon’s experience
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Term
| what are special circumstances that may make late abortions necessary? |
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Definition
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Placenta Previa;
Second Trimester inevitable Abortion;
Preterm Premature Rupture of Membranes
D&E may be the preferred and safer option in these tragic and unsafe situations
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Term
| what is Placenta praevia
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Definition
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Placenta praevia (placenta previa AE) is an obstetric complication that can occur in the second or third trimester of pregnancy. It can some times occur in the latter part of the first trimester. It is a leading cause of antepartum haemorrhage (vaginal bleeding) and is characterised by the implantation of the placenta over or near the top of the cervix.
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