No added risk: national outcomes of magnetic sphincter explant with hiatal hernia repair and fundoplication - Summary - MDSpire

No added risk: national outcomes of magnetic sphincter explant with hiatal hernia repair and fundoplication

  • By

  • Sienna Wong

  • Paul Wisniowski

  • Desmond Huynh

  • Yufei Chen

  • Kulmeet Sandhu

  • Scott Cunneen

  • Miguel Burch

  • July 10, 2026

  • 0 min

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Objective:

To assess the short-term perioperative outcomes of patients undergoing magnetic sphincter augmentation (MSA) device explant with concurrent hiatal hernia repair (HHR) and fundoplication compared to outcomes from primary HHR and fundoplication.

Approach:
  • Data source and study design: A retrospective cohort study using the ACS-NSQIP registry from 2017 to 2023, analyzing outcomes up to 30 days postoperatively.
  • Patient population: Included adults (18 years and older) undergoing foregut surgery, identified using specific CPT codes.
  • Variables and outcomes: Baseline characteristics and primary outcomes of interest included 30-day complications, operative time, length of stay, readmission, reoperation, and mortality.
  • Statistical analysis: Propensity score matching was used to minimize confounding, with statistical significance defined as p < 0.05.
Key Findings:
  • A total of 49,535 patients underwent foregut surgery; 40 patients (0.01%) had concurrent MSA device explant.
  • No significant differences in 30-day outcomes between cohorts; 97.5% of patients experienced no complications.
  • Median operative time was similar: 135 min for MSA device explant and 132 min for the control cohort.
  • Median length of stay was equivalent at 1 day for both groups.
Interpretation:

Concurrent MSA device explant with HHR and fundoplication has a short-term safety profile similar to primary HHR and fundoplication, with no significant differences in complications or operative metrics.

Limitations:
  • The study is limited to short-term outcomes and may not reflect long-term complications or benefits.
  • The small number of patients undergoing MSA device explant limits the generalizability of the findings.
Conclusion:

The findings indicate that MSA device explantation and conversion to traditional fundoplication have few complications, similar to primary HHR and fundoplication.

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