Effect of Operative Time on Outcomes of Minimally Invasive Versus Open Pancreatoduodenectomy

Michael D Williams1,2, Anuradha R Bhama3, Samer Naffouje4

  • 1Department of Surgery, Rush University Medical Center, Chicago, IL, USA.

Abstract

Insights

Longer operative times (OT) increase complications after pancreaticoduodenectomy (PD). Minimally invasive PD (MIPD) shows better outcomes than open PD (OPD), but prolonged OT in MIPD increases mortality. Optimizing OT is crucial for all PD approaches.

Area of Science:

  • Surgical Oncology
  • Gastroenterology
  • Medical Informatics

Background:

  • Minimally invasive pancreaticoduodenectomy (MIPD) is increasingly adopted, often involving longer operative times (OT) than open pancreaticoduodenectomy (OPD).
  • The impact of extended OT on outcomes for MIPD is not well-established, unlike for OPD where it correlates with poorer results.

Purpose of the Study:

  • To investigate the relationship between operative time (OT) and patient outcomes across different pancreaticoduodenectomy (PD) approaches.
  • To determine if extended OT disproportionately affects minimally invasive techniques (MIPD) compared to open procedures (OPD).

Main Methods:

  • Analysis of the National Surgical Quality Improvement Program (NSQIP) pancreatectomy dataset (2014-2019).
  • Utilized propensity score matching, logistic regression, and mixed-effects modeling to assess OT's effect on PD outcomes.
  • Stratified OT into quartiles for open pancreaticoduodenectomy (OPD), laparoscopic (LPD), and robotic (RPD) approaches for comparative analysis.

Main Results:

  • Increased OT correlated with higher overall morbidity across all PD approaches.
  • Minimally invasive PD (MIPD) demonstrated superior overall morbidity compared to OPD across OT quartiles.
  • However, prolonged OT within MIPD (upper quartiles) was linked to significantly increased reoperation rates and mortality.
  • Outcomes between laparoscopic (LPD) and robotic (RPD) approaches showed comparable effects of OT on morbidity.

Conclusions:

  • Extended operative time (OT) is associated with increased overall morbidity following pancreaticoduodenectomy (PD), regardless of surgical approach.
  • While minimally invasive pancreaticoduodenectomy (MIPD) offers better overall morbidity than open pancreaticoduodenectomy (OPD), prolonged OT in MIPD specifically elevates mortality risks.
  • Optimizing operative time is essential for ensuring the safety and efficacy of all pancreaticoduodenectomy (PD) procedures, including MIPD.

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