Minimally invasive vs open pancreatoduodenectomy on oncological adequacy: a propensity score-matched analysis

Yazan Ashouri, Katherine Ho, Helen Ho, Chiu Hsieh Hsu, Iman Ghaderi, Taylor S. Riall, Ioannis T. Konstantinidis, Felipe B. Maegawa

Research output: Contribution to journalArticlepeer-review


Background: The adoption of minimally invasive pancreatoduodenectomy (MIPD) has increased over the last decade. Most of the data on perioperative and oncological outcomes derives from single-center high-volume hospitals. The impact of MIPD on oncological outcomes in a multicenter setting is poorly understood. Methods: The National Cancer Database was utilized to perform a propensity score matching analysis between MIPD vs open pancreatoduodenectomy (OPD). The primary outcomes were lymphadenectomy ≥ 15 nodes and surgical margins. Secondary outcomes were 90-day mortality, length of stay, and overall survival. Results: A total of 10,246 patients underwent pancreatoduodenectomy for ductal adenocarcinoma between 2010 and 2016. Among these patients, 1739 underwent MIPD. A propensity score matching analysis with a 1:2 ratio showed that the rate of lymphadenectomy ≥ 15 nodes was significantly higher for MIPD compared to OPD, 68.4% vs 62.5% (P <.0001), respectively. There was no statistically significant difference in the rate of positive margins, 90-day mortality, and overall survival. OPD was associated with an increased rate of length of stay > 10 days, 36.6% vs 33% for MIPD (P <.01). Trend analysis for the patients who underwent MIPD revealed that the rate of adequate lymphadenectomy increased during the study period, 73.1% between 2015 and 2016 vs 63.2% between 2010 and 2012 (P <.001). In addition, the rate of conversion to OPD decreased over time, 29.3% between 2010 and 2012 vs 20.2% between 2015 and 2016 (P <.001). Conclusion: In this propensity score matching analysis, the MIPD approach was associated with a higher rate of adequate lymphadenectomy and a shorter length of stay compared to OPD. The surgical margins status, 90-day mortality, and overall survival were similar between the groups.

Original languageEnglish (US)
Pages (from-to)7302-7311
Number of pages10
JournalSurgical endoscopy
Issue number10
StatePublished - Oct 2022


  • Lymphadenectomy
  • Minimally invasive
  • Pancreatoduodenectomy
  • Propensity score matching

ASJC Scopus subject areas

  • Surgery


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