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Uterine Tubes

Uterine Tubes

The uterine or fallopian tubes function as the conduit through which oocytes travel from the ovaries to the uterus. Each fallopian tube measures approximately 10 to 13 cm long and is anatomically divided into the infundibulum, ampulla, isthmus, and interstitial part (or intramural segment). The infundibulum is characterized by its funnel shape and features extensions called fimbriae which reach towards the peritoneal cavity. These fimbriae play a critical role during ovulation as they extend...

Ovarian Cycle

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The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle length...

Oogenesis

Oogenesis

In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...

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In vitro fertilization (IVF) is a form of assisted reproductive technology where an egg is fertilized with sperm in a controlled laboratory environment before transferring the resulting embryo into the uterus. This process is designed to help individuals and couples experiencing difficulties conceiving.
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...

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Tubal ectopic pregnancy.

Rajesh Varma¹, Janesh Gupta

¹Guy's and St. Thomas' Hospital NHS Foundation Trust, London, UK.

BMJ Clinical Evidence

|February 11, 2012

Summary

This systematic review examines treatments for unruptured tubal ectopic pregnancy, including surgery and medication. It evaluates the effectiveness and safety of various interventions for improved patient outcomes.

Area of Science:

Reproductive Medicine
Gynecology
Evidence-Based Medicine

Background:

Ectopic pregnancy affects approximately 1% of pregnancies, often occurring in the fallopian tube.
While some ectopic pregnancies resolve spontaneously, others risk tubal rupture, with increased risk factors including pelvic infections, surgery, or prior ectopic pregnancy.
Unruptured tubal ectopic pregnancy necessitates effective treatment to prevent severe complications.

Purpose of the Study:

To systematically review and evaluate treatments for unruptured tubal ectopic pregnancy.
To answer the clinical question: What treatments improve outcomes in women with unruptured tubal ectopic pregnancy?

Main Methods:

Systematic review of medical literature up to July 2011, including Medline, Embase, and The Cochrane Library.

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Inclusion of 19 systematic reviews, randomized controlled trials (RCTs), and observational studies.

GRADE evaluation of evidence quality for various interventions and inclusion of regulatory harms alerts.

Main Results:

The review identified and evaluated multiple interventions for unruptured tubal ectopic pregnancy.
Evidence quality was assessed using the GRADE system.
Data from 19 studies were synthesized to inform treatment effectiveness and safety.

Conclusions:

The systematic review provides information on the effectiveness and safety of surgical (salpingotomy, salpingectomy) and medical (methotrexate, methotrexate plus mifepristone) treatments.
Expectant management was also evaluated.
Findings aim to guide clinical decisions for managing unruptured tubal ectopic pregnancy.