Complications of Pregnancy Flashcards
14 Complications of Pregnancy
Abortion Ectopic Pregnancy Gestational Trophoblastic Disease Multiple Gestation Hypertension in Pregnancy Rh Incompatability Gestational Diabetes Premature Rupture of Membranes Placenta Previa Abruptio Placentae Dystocia Fetal Distress Cesarean Section Postpartum Hemorrhage
Human Chorionic Gonadotropin (HCG) values
Titer < 5 IU/L is negative
Titer > 20 – 25 IU/L is positive
Urine Test detects > 25 IU/L
will double every 48 hours
What is Human Chorionic Gonadotropin (HCG)
is a hormone produced by the syncytiotrophoblast, a portion of the placenta, following implantation
Ultrasound (Transvaginal)
Gestational sac visible @ 5 weeks gestation
Diagnostic Classification for abortions
Threatened Missed Empty Sac (blighted ovum) Inevitable Incomplete Complete Septic Recurrent Elective
Spontaneous Abortion
Recognized pregnancy loss before 20th week.
Most common complication of early pregnancy.
8-20% of clinically recognized pregnancies less than 20 weeks of gestation will undergo spontaneous abortion.
80% of these occur in the first 12 weeks of gestation.
what are 5 fetal factors?
Chromosomal abnormalities 50% of the time they have abnormal chromosomes
Congenital anomalies chromosomal deletions etc
Exposure to teratogens high percent abort
Trauma
Only about 2% of babies have abnormalities
What maternal factors make for higher risk of abortion?
Advanced maternal Age Previous spontaneous abortion Uterine structural issues Maternal disease thyroid dz etc Maternal smoking Unexplained alcohol/ cocaine/ NSAIDs extremes in maternal weight
3 clinical presentations common with abortion?
Vaginal Bleeding
Pelvic pain
Incidental finding on ultrasound
What is the most useful exam for abortion?
U/S
can detect fetal activity at ~5.5 weeks
What are 4 potential predictors of failed pregnancy
Abnormal Gestational Sac Should be round some might be irregular Abnormal Yolk Sac Slow Fetal Heart Rate <100 beats per min might be indication that might be abort Subchorionic Hemorrhage
3 lab evals done for abortion
HCG
Blood Type and Antibody Screen
CBC
What is a threatened abortion?
cervix closed
used to describe vaginal bleeding that occurs in the first 20 weeks of pregnancy. Vaginal bleeding could indicate risk of miscarriage.
stomach cramps
expectant management
Inevitable abortion?
Cervix is opened Bleeding usually heavier Cramps or pain lower abdomen Treatment Await spontaneous abortion Consider surgical removal
Missed abortion?
Fetus has died but still in the uterus Spotting may or may not be present No pain Uterus enlarged but may be smaller than expected Treatment Await spontaneous abortion Surgical removal
What is a complete abortion?
Pregnancy completely expelled from uterus
What are 6 symptoms of complete abortion?
Bleeding Pain Passage of tissue Cervix closed Uterus smaller than expected Tissue may be present in vagina Follow serial HCG until <5
What is an incomplete abortion?
Only part of pregnancy expelled
Surgical removal as soon as possible
What are symptoms of incomplete abortion?
Bleeding Cramps Passage of tissue Cervix open Tissue at cervical os or in vagina
What is septic abortion?
form of abortion with intrauterine infection
Uncommon with spontaneous abortion/very rare
Frequently associated with induced abortion
Can be life-threatening
Usually caused by Staphylococcus aureus
What are symptoms of septic abortion?
Fever, chills, malaise Abdominal pain Vaginal bleeding and discharge which is sanguinopurulent Tachycardia Low abdominal tenderness Boggy, tender uterus with dilated cervix
What is the treatment for septic abortion?
Parenteral antibiotics
Evacuate uterus
What is recurrent abortion?
Three or more consecutive losses of clinically recognized pregnancies prior to the 20th week.
Spontaneous abortion occurs about 10-15 % of the time
What are the chances of having another spontaneous abortion after 1?
after 2?
After one spontaneous abortion the chance of a second is about 15%
It rises after 2 consecutive spontaneous abortion to 17-31%
25-46% after three consecutive spontaneous abortions
What are 5 causes of recurrent abortion?
Uterine factors Endocrine uncontrolled thyroid or polycystic ovarin Karyotype abnormalities Environmental toxins Autoimmune disease lupus
What is an empty sac?
Where the embryonic development arrested at a very early stage or failed altogether
Defined sonographically as a gestational sac larger than 25 mm without evidence of embryonic tissue
Can present as a missed, inevitable, incomplete or complete abortion
What is an ectopic pregnancy?
It is an extrauterine pregnancy
98% occur in the fallopian tube
Ampullary portion of tube most common
Isthmic next most frequent site.
What are high risk factors for having ectopic pregnancy?
previous ectopic pregnancy previous tubal surgery current IUD use tubal ligation, tubal patho in utero DES exposure
Incidence and epidemiology of ectopic pregnancy
The prevalence of ectopic pregnancy of woman who go to the ED for first trimester bleeding, pain or both ranges from 6-16%.
The overall incidence has increased in the mid twentieth century, plateauing at approx. 20 per 1000 pregnancies in the early 1990’s
The rising incidence associated with pelvic inflammatory disease
What is a tubal abortion?
body forces the pregnancy out the fallopian tube
What is a tubal rupture?
pregnancy blows out the fallopian tube
What is an abdominal pregnancy?
body sends the pregnancy out but it gets stuck in the abdomen
How do you diagnose an ectopic pregnancy?
Based on measurement of serum HCG & transvaginal ultrasound, Hgb, HCT
Accounts for 4-10% of all pregnancy related deaths
HCG should double every 48 hours in a normal pregnancy if it doesn’t think its abnormal or ectopic
Signs and symptoms for ectopic pregnancy?
Vaginal bleeding and/or abdominal – pelvic pain Asymptomatic Abnormal menstruation Uterine changes Blood pressure & pulse Temperature Pelvic mass
What is the leading cause of pregnancy related maternal death in the 1st trimester?
Hemorrhage from ectopic
What are 3 treatments for ectopic pregnancy?
Dilatation & Curettage
Laparoscopy
Laparotomy= unstable patients
2 types of laparoscopy?
Salpingostomy= open the fallopian tube Salpingectomy= remove the fallopian tube
What is the criteria to use medical management?
< 6 weeks Tubal mass < 3.5 cm in diameter Fetus has died B-HCG < 15,000 mIU Patient has to be willing to do blood work
Medical management used for ectopic pregnancy?
Methotrexate Inhibits DNA synthesis
Contraindications for the use of methotrexate?
Breastfeeding Immunodeficiency Alcoholism Liver or kidney disease Blood dyscrasias Active pulmonary disease Peptic ulcer
What are the side effects of medical management for ectopic pregnancy
Liver dysfunction
Stomatitis
Gastroenteritis
Pneumonitis
What is the prognosis of ectopic pregnancy
Recurrent ectopic 4-28%
Intrauterine pregnancy 38-89%
Gestational Trophoblastic Disease
is a group of conditions in which tumors grow inside a woman’s uterus (womb). The abnormal cells start in the tissue that would normally become the placenta
4 distinct types of GTD
Hydatidiform Mole (complete is MC or partial)
Persistent/invasive gestational trophoblastic neoplasia (GTN)
Choriocarcinoma
Placental site trophoblastic tumors
What are complete and partial moles of GTD?
noninvasive localized tumors that develop as a result of an aberrant fertilization event that leads to a proliferative process
They comprise 90% of GTD cases
The other three categories represent malignant disease
What are partial moles?
Originates from one maternal and usually two paternal haploid compliments
Fetus of partial mole has triploidy with congenital malformations & IUGR, and it is usually nonviable
Gestational Trophoblastic Disease epidemiology
Varies worldwide
North American & European countries 1 per 1000 to 1500 pregnancies
Asia & Latin America 1 per 12 to 500 pregnancies
What are 2 risk factors of GTD?
Extremes in age, older than 35 and < 20
History of previous GTD
Clinical Manifestations of Gestational Trophoblastic Disease
Vaginal bleeding Enlarged uterus Pelvic pressure or pain Theca lutein cysts get large, tumors of the ovaries usually bilateral and can get to 10-15mm in size Anemia hyperthyroid preeclampsia before 20 wks
How to diagnose Gestational Trophoblastic Disease
High levels of hCG Ultrasound Absence of embryo or fetus No amniotic fluid Snowstorm pattern Theca lutein cysts= can produce testosterone
How to treat Hydatidiform mole
Immediate evacuation
Measure serum hCG, q2 weeks, once negative , monthly for 6 months.
Pregnancy allowed after 6 months
Persistent/invasive Gestational Trophoblastic Disease mole
20% of molar pregnancies can develop this
Usually limited to the uterus
Good prognosis with chemotherapy
3% relapse
Choriocarcinoma
uncommon cancer that occurs during pregnancy. A baby may or may not develop in this type of pregnancy
What do you need to check for if you find choriocarcinoma
Check for metastasis
Lung, Vagina, Vulva, Kidneys
Liver, Ovaries, Brain, Bowel
How do you treat Choriocarcinoma?
Immediate evacuation
Chemotherapy
Methotrexate
Actinomycin D