LATEST UPDATE (GRADED A+)
Ectopic Pregnancy
Fertilized ovum that implants in any place other than endometrial cavity
Etiology of Ectopic Pregnancy
• Mechanical obstruction or abnormality in the movement of embryo through the fallopian tube
• 1st ectopic pregnancy documented in 1638
Fallopian Tubes
Paired musculo- membranous structures
Interstitial/intramural portion of Fallopian Tube
Narrowest segment
- passes through the muscular wall of the uterine corpus
- most dangerous site for an ectopic (2.5%)
Isthmus portion of Fallopian Tube
Adjacent to the uterus (3%)
Ampulla portion of Fallopian Tube
Longest segment
- Tortuous course & widens at distal end
- Most common site for an ectopic - 93%
Infundibulum/fimbriated extremity portion of Fallopian Tube
distal portion the tube that resembles a petunia
Sites for Ectopic Pregnancy
Fallopian Tubes
- Ampulla - MC 93%
- Isthmus - 3%
- Interstitial or corneal - 2.5%
- Fimbrae
Ovary - rare
Cervix
Abdominal cavity/ implantation
Primary vs. Secondary Ovarian Implantation
, Primary = fertilization takes place in ovaries
Secondary = results in tubal abortion
Classic Triad of Symptoms for an Ectopic Pregnancy
Pain
Abnormal vaginal bleeding
Adnexal mass
Addition symptoms for an Ectopic Pregnancy
(+) pregnancy test
Ruptured Ectopic pregnancy
Pallor
Clammy skin
Sweating
Tachycardia
Hypotension
Right shoulder pain - fluid in Morison's pouch
2 types of hCG tests
1) Urine or Serum
2) Quantitative
Urine or Serum hCG
Serum = most accurate to test pregnancy
Detects hCG in bloodstream
Quantitative hCG test
Normal IUP - 2x every 2-3 days
Ectopic pregnancy = increases slowly
At 1000 units = IUP seen on TV
Ruptured Ectopic Pregnancy results in increased & decreased what?
Increases Serum amylase
Decreases Hematocrit
Risk Factors for Ectopic Pregnancy
Previous ectopic
PID