Ectopic Pregnancy

Treat ectopic pregnancy as a hemorrhagic emergency when there is hemodynamic instability, acute abdomen, syncope or presyncope, shoulder pain with suspected hemoperitoneum, or escalating abdominal pain. Tubal rupture can cause intraperitoneal hemorrhage and hypovolemic shock; hypotension may be a late finding. BMJ+2BMJTubal ectopic pregnancy - Symptoms, diagnosis and treatment | BMJ Best Practice USNatureEctopic pregnancy | Nature Reviews Disease PrimersWolters KluwerEctopic Pregnancy : Topics in Emergency Medicine

In an unstable patient, obtain pregnancy testing, type and crossmatch, CBC, and focused imaging only if it does not delay definitive operative care. Ruptured ectopic pregnancy or failed medical management is managed surgically. BMJBMJTubal ectopic pregnancy - Symptoms, diagnosis and treatment | BMJ Best Practice US

In hemodynamically stable patients, perform transvaginal ultrasonography (TVUS) as the initial imaging study, with transabdominal imaging as an adjunct when needed. TVUS should assess the uterine cavity, adnexa, and free intraperitoneal fluid. A definite extrauterine gestational sac containing yolk sac or embryo establishes ectopic pregnancy; an adnexal mass or free fluid increases concern but must be interpreted with the clinical and hCG context. BMJ+2BMJTubal ectopic pregnancy - Symptoms, diagnosis and treatment | BMJ Best Practice USNatureEctopic Pregnancy Diagnosis and Management TechniquesNatureEctopic pregnancy | Nature Reviews Disease Primers

Obtain a quantitative serum hCG concurrently. Serial hCG measurement is most useful when TVUS is nondiagnostic; a single value cannot determine pregnancy location or viability. The historical discriminatory-zone concept should not be used as the sole basis for intervention because an absent intrauterine gestation at a given hCG concentration does not prove ectopic pregnancy. Nature+2NatureEctopic Pregnancy Diagnosis and Management TechniquesWolters KluwerDiagnosing Ectopic Pregnancy : Obstetrics & GynecologyScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

Pregnancy of unknown location (PUL) describes positive hCG with no intrauterine or extrauterine pregnancy visualized on TVUS. It can ultimately represent viable or nonviable intrauterine pregnancy, ectopic pregnancy, or persistent PUL. Follow patients until the outcome is resolved; risk models may assist PUL triage but are predictive rather than diagnostic. ScienceDirectScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

For confirmed or strongly suspected tubal ectopic pregnancy, surgery is indicated for rupture, hemodynamic instability, signs of significant intraperitoneal bleeding, contraindication to methotrexate, inability to ensure follow-up, or failed medical or expectant management. Minimally invasive surgery is recommended when feasible. BMJ+1BMJTubal ectopic pregnancy - Symptoms, diagnosis and treatment | BMJ Best Practice USScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

Expectant management can avoid medication and procedural harms in carefully selected early, asymptomatic tubal pregnancies, but failure can cause serious morbidity. Evidence is limited; reported spontaneous resolution rates vary from 30% to 70% according to selection criteria. Use only with close clinical and hCG follow-up and immediate access to emergency evaluation. ScienceDirectScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

Medical treatment is appropriate only for a stable patient with an unruptured ectopic pregnancy, no contraindication to methotrexate, and reliable return for serial testing. Baseline evaluation includes CBC and renal and hepatic function testing. Methotrexate is used for ectopic pregnancy outside its labeled oncology and inflammatory indications; counsel explicitly about off-label use, prolonged surveillance, possible additional dosing, rupture risk during follow-up, and possible need for surgery. ScienceDirectScienceDirectOverview and guidelines of off-label use of methotrexate in ectopic pregnancy: report by CNGOF

The commonly used single-dose regimen is methotrexate 50 mg/m² IM on day 0. Measure hCG on days 4 and 7. If hCG falls by at least 15% from day 4 to day 7, continue weekly quantitative hCG until negative. If the decline is less than 15%, administer another 50 mg/m² IM dose on day 7 and reassess according to protocol; plateauing or rising hCG during follow-up may require additional methotrexate or surgery. ajogajogMedical management of ectopic pregnancy with single-dose and 2-dose methotrexate protocols: human chorionic gonadotropin trends and patient outcomes

A two-dose regimen administers methotrexate 50 mg/m² IM on days 0 and 4, with hCG measured on days 4 and 7. If the day 4-to-day 7 decline is less than 15%, a third dose is given, followed by additional protocol-directed measurements and possible fourth dose or surgery. ajogajogMedical management of ectopic pregnancy with single-dose and 2-dose methotrexate protocols: human chorionic gonadotropin trends and patient outcomes

In a prospective multicenter cohort, single- and two-dose protocols had similar treatment success and time to resolution; nonrandomized treatment selection likely reflected clinician assessment of baseline risk. ajogajogMedical management of ectopic pregnancy with single-dose and 2-dose methotrexate protocols: human chorionic gonadotropin trends and patient outcomes Evidence does not establish a universal superiority of either regimen, and guideline-based use of either single- or double-dose treatment is reasonable in appropriately selected tubal ectopic pregnancy. ScienceDirectScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

When operative treatment is required, laparoscopy is preferred when feasible. Salpingectomy removes the affected tube; salpingotomy removes the ectopic pregnancy while preserving the tube but creates risk for persistent trophoblastic tissue and need for postprocedure hCG surveillance. ScienceDirect+1ScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic PregnanciesScienceDirectOverview and guidelines of off-label use of methotrexate in ectopic pregnancy: report by CNGOF

There is no evidence to recommend routine tube-sparing salpingotomy over salpingectomy for most tubal pregnancies when the contralateral tube is normal. Consider patient fertility priorities, contralateral tubal disease, operative findings, and surgeon expertise. ScienceDirectScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

After salpingotomy, serial hCG follow-up is essential because persistent trophoblastic tissue occurs in an estimated 11% to 22% of cases in the reviewed evidence. Routine prophylactic methotrexate is not generally indicated when hCG monitoring is feasible; methotrexate can be used for persistent disease. ScienceDirectScienceDirectOverview and guidelines of off-label use of methotrexate in ectopic pregnancy: report by CNGOF

Nontubal ectopic pregnancies are uncommon, diagnostically challenging, and associated with substantial morbidity when diagnosis is delayed. Their rarity limits randomized evidence, so treatment should be individualized in centers with expertise in advanced ultrasonography, minimally invasive gynecologic surgery, hemorrhage control, and interventional radiology when available. ScienceDirectScienceDirectNontubal ectopic pregnancies: overview of diagnosis and treatment

For cesarean-scar, cervical, and interstitial pregnancies, guideline recommendations support selected medical approaches using multidose and/or local methotrexate, often combined with procedural therapy. These are not managed with the same assumptions used for uncomplicated tubal disease. ScienceDirectScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

Do not administer systemic methotrexate when a heterotopic intrauterine pregnancy is desired. Surgical excision of the ectopic component is suggested. ScienceDirectScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

After methotrexate, continue quantitative hCG monitoring until the result is negative. After expectant management, maintain clinical and hCG surveillance until spontaneous resolution is documented. Immediate reassessment is required for new or worsening pain, syncope, shoulder pain, or symptoms of intraperitoneal hemorrhage. ScienceDirect+1ScienceDirectOverview and guidelines of off-label use of methotrexate in ectopic pregnancy: report by CNGOFScienceDirectGuideline No. 414: Management of Pregnancy of Unknown Location and Tubal and Nontubal Ectopic Pregnancies

After ectopic pregnancy, address reproductive goals, contraception, and psychological effects. Early evaluation in a subsequent pregnancy is warranted because prior ectopic pregnancy increases recurrence risk. BMJ+1BMJTubal ectopic pregnancy - Symptoms, diagnosis and treatment | BMJ Best Practice USNatureEctopic pregnancy | Nature Reviews Disease Primers