Interventions for tubal ectopic pregnancy.
BACKGROUND
Treatment options for tubal ectopic pregnancy are; (1) surgery, e.g. salpingectomy or salpingo(s)tomy, either performed laparoscopically or by open surgery; (2) medical treatment, with a variety of drugs, that can be administered systemically and/or locally by various routes and (3) expectant management.


OBJECTIVE
To evaluate the effectiveness and safety of surgery, medical treatment and expectant management of tubal ectopic pregnancy in view of primary treatment success, tubal preservation and future fertility.


METHODS
The Cochrane Menstrual Disorders and Subfertility Group's Specialised Register, Cochrane Controlled Trials Register (up to February 2006), Current Controlled Trials Register (up to October 2006), and MEDLINE (up to October 2006) were searched.


METHODS
Randomised controlled trials (RCTs) comparing treatments in women with tubal ectopic pregnancy.


METHODS
Data extraction and quality assessment was done independently by two reviewers. Differences were resolved by discussion with all reviewers.


RESULTS
Thirty five studies have been analysed on the treatment of tubal ectopic pregnancy, describing 25 different comparisons.


METHODS
Laparoscopic salpingostomy is significantly less successful than the open surgical approach in the elimination of tubal ectopic pregnancy (2 RCTs, n=165, OR 0.28, 95% CI 0.09, 0.86) due to a significant higher persistent trophoblast rate in laparoscopic surgery (OR 3.5, 95% CI 1.1, 11). However, the laparoscopic approach is significantly less costly than open surgery (p=0.03). Long term follow-up (n=127) shows no evidence of a difference in intra uterine pregnancy rate (OR 1.2, 95% CI 0.59, 2.5) but there is a non significant tendency to a lower repeat ectopic pregnancy rate (OR 0.47, 95% 0.15, 1.5). Salpingostomy alone is significantly less successful than when combined with a prophylactic single shot methotrexate (2 RCTs, n=163, OR 0.25, 95% CI 0.08-0.76) to prevent persistent trophoblast.


METHODS
Systemic methotrexate in a fixed multiple dose intramuscular regimen has a non significant tendency to a higher treatment success than laparoscopic salpingostomy (1 RCT, n=100, OR 1.8, 95% CI 0.73, 4.6). No significant differences are found in long term follow-up (n=74): intra uterine pregnancy (OR 0.82, 95% CI 0.32, 2.1) and repeat ectopic pregnancy (OR 0.87, 95% CI 0.19, 4.1). One single dose intramuscular methotrexate is significantly less successful than laparoscopic salpingostomy (4 RCTs, n=265, OR 0.38, 95% CI 0.20, 0.71). With a variable dose regimen treatment success rises, but shows no evidence of a difference compared to laparoscopic salpingostomy (OR 1.1, 95% CI 0.52, 2.3). Long term follow-up (n=98) do not differ significantly (intra uterine pregnancy OR 1.0, 95% CI 0.43, 2.4, ectopic pregnancy OR 0.54, 95% CI 0.12, 2.4). The efficacy of systemic single dose methotrexate alone is significantly less successful than when combined with mifepristone (2 RCTs, n=262, OR 0.59, 95% CI 0.35, 1.0). The same goes for the addition of traditional Chinese medicine (1 RCT, n=78, OR 0.08, 95% CI 0.02, 0.39). Local medical treatment administered transvaginally under ultrasound guidance is significantly better than a 'blind' intra-tubal injection under laparoscopic guidance in the elimination of tubal ectopic pregnancy (1 RCT, n=36, methotrexate OR 5.8, 95% CI 1.3, 26; 1 RCT, n=80, hyperosmolar glucose OR 0.38, 95% CI 0.15, 0.93). However, compared to laparoscopic salpingostomy, local injection of methotrexate administered transvaginally under ultrasound guidance is significantly less successful (1 RCT, n=78, OR 0.17, 95% CI 0.04, 0.76) but with positive long term follow up (n=51): a significantly higher intra uterine pregnancy rate (OR 4.1, 95% CI 1.3, 14) and a non significant tendency to a lower repeat ectopic pregnancy rate (OR 0.30, 95% CI 0.05, 1.7). EXPECTANT MANAGEMENT: Expectant management is significantly less successful than prostaglandin therapy (1 RCT, n=23, OR 0.08, 95% CI 0.02-0.39).


CONCLUSIONS
In the surgical treatment of tubal ectopic pregnancy laparoscopic surgery is a cost effective treatment. An alternative nonsurgical treatment option in selected patients is medical treatment with systemic methotrexate. Expectant management can not be adequately evaluated yet.
Hajenius
P J
PJ
Academic Medical Center, University of Amsterdam, Obstetrics and Gynecology (H4-205), Meibergdreef 9, Amsterdam, Netherlands, 1105 AZ. p.hajenius@amc.nl
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D000020:Abortifacient Agents, Nonsteroidal; D005260:Female; D006801:Humans; D008727:Methotrexate; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000628:therapy*; D016032:Randomized Controlled Trials as Topic; D012489:Salpingostomy
D000020:Abortifacient Agents, Nonsteroidal; D008727:Methotrexate