gasguide

Nissen Fundoplication / Hiatal Hernia Repair

Patient phenotype

GERD refractory to PPI, large hiatal hernia, sometimes Barrett's. Often obese, cardiopulmonary comorbidities. Older patients with paraesophageal hernia at risk for incarceration.

Procedure

Laparoscopic (≥ 90% of cases). Reduce hiatal hernia, close crural defect, wrap fundus 360° (Nissen) or 270° (Toupet) around distal esophagus. Reverse Trendelenburg + insufflation. ~2-3 hours.

Anesthetic plan

GETA with RSI (full stomach assumption — GERD by definition). OG tube placed AFTER intubation, removed before wrap creation. Surgeon may pass bougie through esophagus during wrap (35-60 Fr) — alert anesthesia.

Setup

  • ·Standard monitors + temp
  • ·1-2 PIVs
  • ·OG tube (placed post-intubation, removed before wrap)
  • ·Bougie 50-60 Fr available — surgeon may request you pass it
  • ·Forced air warmer
  • ·Foley if > 2h expected

Biggest concerns by phase

Pre-op

Aspiration prophylaxis

Symptomatic GERD = full stomach. PPI continued, H2 blocker night before + morning of, sodium citrate 30 mL PO. Modified RSI standard.

Intra-op

OG tube + bougie management

OG tube removed before wrap (will be incorporated into wrap if left in). Surgeon often asks anesthesia to pass calibrating bougie (50-60 Fr) — pass slowly, lubricate, avoid esophageal injury. Stop if resistance.

Intra-op

Pneumothorax from crural dissection

Mediastinal dissection can breach pleura → pneumothorax (often R, sometimes bilateral). Suspect with sudden peak pressure rise + ETCO₂ change + asymmetric breath sounds. Surgeon can place drain through diaphragm.

Intra-op

Pneumoperitoneum + obese patient ventilation

Insufflation + reverse Trendelenburg. Watch peak pressures, use pressure-control if compliance poor. PEEP 5-8.

Emergence

PONV prophylaxis + extubation

Vomiting postop = wrap disruption risk. Aggressive PONV prophylaxis (dex, ondansetron, scopolamine, droperidol). Smooth emergence. Avoid bucking (esophageal pressure spike).

Mock-defense scenarios

Practice answering these out loud. The probes show what an examiner is listening for.

65-yo M, BMI 36, paraesophageal hernia with intermittent obstruction, severe GERD on PPI. To OR for Nissen. Walk me through induction.

What an examiner probes for
  • Modified RSI with ramped position
  • PPI + H2 + sodium citrate
  • OG tube management
  • Bougie passage technique
  • PONV plan + smooth extubation

Sources

  • Miller's Ch 71
  • SAGES Guidelines GERD/Hiatal Hernia

Anatomy reference

Sourced reference images. 4 matches for "esophagus stomach diaphragm".

Browse the full image library →
Education only — anesthetic plans vary by patient, institution, and provider judgment. Use as a starting point, not a substitute for clinical reasoning.