Abstract
Noninvasive diagnosis of ectopic pregnancy should be performed early, before tubal rupture occurs, combining transvaginal ultrasound with measurement of the beta fraction of the chorionic gonadotropic hormone. Several treatment options can be used. We must respect the indications for both surgical interventions and clinical treatment. Laparotomy is indicated in cases of hemodynamic instability. Laparoscopy is the preferred route for treatment of tubal pregnancy. Salpingectomy should be performed in patients with established offspring. Salpingostomy is indicated in patients with reproductive desire, when b-hCG titers are less than 5,000 mIU/mL and surgical conditions are favorable. Treatment with methotrexate (MTX) is an established procedure and may be indicated as the first treatment option. The main criteria for indicating MTX are hemodynamic stability, b-hCG <5,000 mIU/mL, adnexal mass <3.5 cm and absence of a live embryo. The single intramuscular dose of 50 mg/m² is preferred because it is easier, more practical and has fewer side effects. The protocol with multiple doses should be restricted to cases of atypical location (interstitial, cervical, cesarean scar and ovarian) with b-hCG values >5,000 mIU/mL and absence of a live embryo. The indication for local treatment with MTX injection (1 mg/kg) guided by transvaginal ultrasound is in the presence of a live embryo in cases of atypical location. Expectant management should be indicated in cases of declining b-hCG titers in the 48 hours before treatment and when initial titers are less than 1,500 mIU/mL. Regarding future reproductive health, there is controversy between salpingectomy and salpingostomy. Until we reach a consensus in the literature, we advise patients desiring a future pregnancy to opt for conservative approaches, both surgical and clinical.
References
Ash A, Smith A, Maxwell D. Caesarean scar pregnancy. BJOG. 2007;114:253-63.
Loureiro T, Cunha M, Marques E, Araújo ML, Montenegro N, Laurini R, et al. Non-viable cervico-isthmic pregnancy: the importance of an accurate sonographic diagnosis to preserve fertility. Fetal Diagn Ther. 2003;18(5):289-91.
Ankum WM, Mol BW, Van der Veen F, Bossuyt PM. Risk factors for ectopic pregnancy: a meta-analysis. Fertil Steril. 1996;65(6):1093-9.
Saraiya M, Berg CJ, Kendrick JS, Strauss LT, Atrash HK, Ahn YW. Cigarette smoking as a risk factor for ectopic pregnancy. Am J Obstet Gynecol. 1998;178(3):493-8.
Butts S, Sammel M, Hummel A, Chittams J, Barnhart K. Risk factors and clinical features of recurrent ectopic pregnancy: a case control study. Fertil Steril. 2003;80(6):1340-4.
Stovall TG, Ling FW, Carson SA, Buster JE. Nonsurgical diagnosis and treatment of tubal pregnancy. Fertil Steril. 1990;54(3):537-8.
Barnhart K, Mennuti MT, Benjamin I, Jacobson S, Goodman D, Coutifaris C. Prompt diagnosis of ectopic pregnancy in an emergency department setting. Obstet Gynecol. 1994;84(6):1010-5.
Gracia CR, Barnhart KT. Diagnosing ectopic pregnancy: decision analysis comparing six strategies. Obstet Gynecol. 2001;97(3):464-70.
Fritz MA, Guo SM. Doubling time of human chorionic gonadotropin (hCG) in early normal pregnancy: relationship to hCG concentration and gestational age. Fertil Steril. 1987;47(4):584-9.
Timor-Tritsch IE, Yeh MN, Peisner DB, Lesser KB, Slavik TA. The use of transvaginal ultrasonography in the diagnosis of ectopic pregnancy. Am J Obstet Gynecol. 1989;161(1):157-61.
Romero R, Kadar N, Copel JA, Jeanty P, DeCherney AH, Hobbins JC. The value of serial human chorionic gonadotropin testing as a diagnostic tool in ectopic pregnancy. Am J Obstet Gynecol. 1986;155(2):392-4.
Kadar N, Romero R. Observations on the log human chorionic gonadotropin-time relationship in early pregnancy and its practical implications. Am J Obstet Gynecol. 1987;157(1):73-8.
Barnhart KT, Sammel MD, Rinaudo PF, Zhou L, Hummel AC, Guo W. Symptomatic patients with an early viable intrauterine pregnancy: hCG curves redefined. Obstet Gynecol. 2004;104(1):50-5.
Chung K, Sammel MD, Coutifaris C, Chalian R, Lin K, Castelbaum AJ, et al. Defining the rise of serum HCG in viable pregnancies achieved through use of IVF. Hum Reprod. 2006;21(3):823-8.
Kadar N, Freedman M, Zacher M. Further observations on the doubling time of human chorionic gonadotropin in early asymptomatic pregnancies. Fertil Steril. 1990;54(5):783-7.
Barnhart KT, Katz I, Hummel A, Gracia CR. Presumed diagnosis of ectopic pregnancy. Obstet Gynecol. 2002;100(3):505-10.
Fernandez H, Gervaise A. Ectopic pregnancies after infertility treatment: modern diagnosis and therapeutic strategy. Hum Reprod Update. 2004;10(6):503-13.
Hajenius PJ, Mol F, Mol BW, Bossuyt PM, Ankum WM, van der Veen F. Interventions for tubal ectopic pregnancy. Cochrane Database Syst Rev. 2007;(1):CD000324.
Lundorff P, Thorburn J, Hahlin M, Källfelt B, Lindblom B. Laparoscopic surgery in ectopic pregnancy. A randomized trial versus laparotomy. Acta Obstet Gynecol Scand. 1991;70(4-5):343-8.

This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2025 Kerolaine Silva Fonseca, Anna Luíza Barbosa da Silva Almeida, Raul Sescato Rezende Pinto, Lucas Moura Araujo Luz, Tayná de Paiva Marques Carvalho, Marcus Vinícius de Magalhães Oliveira, Jan Carlos Leão Alves, Paulo Cesar Mouchalouat Filho, Pedro Repani Marcatti, Priscila Leite Loiola Ribeiro, Raphael Alves Gomes Braga, Isabella Fróes Demétrio, Camila Kelly de Melo Fidelis, Eliane Teixeira dos Santos, Thalia Ely Cervejeira, Bruna Alacoque Amorim Lima, Mariana Rodrigues Bezerra, Anne Caroline Tavares de Carvalho