In a 33‑week pregnant woman with extra‑hepatic portal vein obstruction who had an oesophagogastroduodenoscopy (OGD) and endoscopic variceal ligation (EVL) three years ago and is currently asymptomatic, should an OGD be performed now or after delivery?

OGD Should Be Performed After Delivery in This Case

Since your last OGD with EVL was performed 3 years ago (beyond the 1-year window), screening endoscopy is indicated—however, at 33 weeks gestation you are now in the third trimester, and the optimal timing for endoscopy during pregnancy has passed. Therefore, OGD should be deferred until after delivery unless you develop active bleeding or symptoms. 1

Rationale Based on Current Guidelines

The 1-Year Rule and Timing Window

• EASL 2023 guidelines clearly state that screening endoscopy should be performed within 1 year prior to conception in patients with portal hypertension to assess for clinically significant varices and institute appropriate prophylaxis 1

• If a screening endoscopy (without varices) was performed within 1 year of pregnancy, no further screening is required during pregnancy 1

• Since your last endoscopy was 3 years ago, you technically needed screening—but the preferred timing is the second trimester, which you have already passed 1

Why Second Trimester Is Preferred (Now Missed)

• Non-urgent endoscopic procedures should ideally be performed in the second trimester to balance fetal safety with maternal benefit 1

• After 20 weeks gestation, patients should not lie supine during endoscopy due to risk of aortocaval compression causing "supine hypotension syndrome" with placental hypoperfusion and fetal hypoxia 1

• At 33 weeks, you are well into the third trimester where endoscopy carries increased technical challenges and the gravid uterus significantly complicates positioning 1

Current Clinical Status Favors Deferral

• You are asymptomatic with no active complaints, which is the critical factor 1

• Endoscopy during pregnancy is primarily indicated for active bleeding, high-risk situations, or when findings would change immediate management 1

• In EHPVO (non-cirrhotic portal hypertension), maternal outcomes are generally better than cirrhotic portal hypertension, with lower rates of hepatic decompensation 2

Risk-Benefit Analysis at 33 Weeks

Risks of Proceeding Now

• Sedation risks increase with advancing gestation: propofol, fentanyl, and midazolam are considered safe but oversedation can cause maternal hypotension/hypoxia leading to decreased placental blood flow and fetal distress 1

• Positioning challenges: left lateral tilt is mandatory after 20 weeks to prevent aortocaval compression, making the procedure technically more difficult 1

• Slightly increased risk of premature delivery associated with endoscopy in late pregnancy, though this is likely related to underlying disease 1

• Any intervention (EVL) discovered to be necessary would add procedural time and sedation exposure 1

Benefits of Waiting Until Postpartum

• Only 7 weeks until term: the risk of variceal bleeding in the remaining pregnancy period is relatively low given your asymptomatic status 2

• Postpartum endoscopy allows full assessment without fetal considerations, optimal positioning, and unrestricted sedation if needed 1

• If varices are found postpartum, appropriate prophylaxis can be instituted before any future pregnancy 1

What You Should Do Instead

Immediate Management (Until Delivery)

• Consider initiating or optimizing beta-blocker therapy (carvedilol preferred, or propranolol) for primary prophylaxis even without recent endoscopy, as benefits outweigh risks of fetal growth restriction 1

• Monitor for any symptoms of variceal bleeding: hematemesis, melena, dizziness, or abdominal pain should prompt immediate evaluation 1

• Ensure multidisciplinary team coordination between obstetrics, hepatology, and gastroenterology for delivery planning 1

Delivery Planning

• Vaginal delivery is preferred even in the presence of varices 1

• Shortened/assisted second stage should be considered to reduce Valsalva maneuvers and minimize risk of variceal bleeding during delivery 1

• Correct any coagulopathy or thrombocytopenia prior to delivery 1

• Be prepared for postpartum hemorrhage, which occurs in 5-45% of women with portal hypertension due to coagulopathy, thrombocytopenia, and potential ectopic varices 1, 2

Postpartum Endoscopy

• Schedule OGD for 6-12 weeks postpartum to assess current variceal status and guide long-term management 1

• This timing allows for:

  • Complete resolution of pregnancy-related hemodynamic changes 3
  • Optimal procedural conditions without fetal concerns 1
  • Appropriate planning for any future pregnancies 1

Critical Exception: When to Perform OGD Now

Proceed with urgent endoscopy at any gestational age if you develop:

• Active variceal bleeding (hematemesis, melena with hemodynamic instability) 1
• Significant symptoms suggesting high-risk varices or bleeding 1
• Any condition where the risk to mother outweighs fetal risks 1

In such emergencies, endoscopic band ligation is safe and effective during pregnancy, with octreotide and antibiotics as adjunctive therapy 1, 4

Common Pitfalls to Avoid

• Do not assume pregnancy itself is a contraindication to endoscopy—it can be performed safely when truly indicated, but timing and indication matter 1

• Do not ignore new symptoms: any bleeding, abdominal pain, or signs of decompensation require immediate evaluation regardless of gestational age 1, 2

• Do not defer beta-blocker therapy if not already on it—this can be safely initiated now for prophylaxis 1

• Do not plan cesarean section solely due to varices—vaginal delivery with shortened second stage is preferred 1