Highlight
- Despite a higher perceived cost of equipment, robotic and laparoscopic hepatopancreatic (HPB) surgeries are associated with significantly lower total hospital charges than open surgery.
- Robotic surgery utilization for HPB procedures more than doubled between 2016 and 2020, though open surgery remains the dominant approach at 87.7%.
- Complications and late discharges are the primary drivers of increased hospital charges, adding over $80,000 to the median cost per case.
Background
The field of hepatopancreatic (HPB) surgery, encompassing complex liver and pancreatic resections, has traditionally been dominated by open surgical techniques. These procedures are technically demanding and carry a high risk of postoperative morbidity. While minimally invasive surgery (MIS)—including laparoscopic and robotic-assisted approaches—has revolutionized other surgical disciplines, its adoption in HPB surgery has been slower. This delay is often attributed to the steep learning curve, technical complexity, and the perception that MIS, particularly robotic surgery, is cost-prohibitive for the healthcare system.
In an era of value-based healthcare, the economic footprint of surgical innovation is under intense scrutiny. Proponents of MIS argue that the initial investment in technology and specialized training is offset by improved clinical outcomes, such as reduced blood loss, lower complication rates, and shorter hospital stays. However, empirical data comparing the actual hospital charges across open, laparoscopic, and robotic approaches in a real-world, national setting have been limited. This study by Alizai et al. aims to fill this gap by analyzing trends and predictors of hospital charges using a large-scale national database.
Study Design
This retrospective cohort study utilized data from the Nationwide Readmissions Database (NRD) spanning the years 2016 to 2020. The researchers identified 54,174 adult patients who underwent elective hepatic or pancreatic resections. The study population was stratified based on the surgical approach: open, laparoscopic, or robotic.
The primary endpoint was total hospital charges. To ensure a robust analysis, the researchers employed multivariable quantile regression. This statistical method is particularly useful for financial data as it accounts for the skewed distribution of hospital charges and allows for the assessment of associations at different points in the charge distribution. The models were further stratified by procedure type (liver vs. pancreas) and discharge timing (early vs. late) to isolate the impact of surgical approach from hospital length of stay and postoperative recovery speed.
Key Findings
Utilization Trends
Of the 54,174 patients identified, the vast majority (87.7%) underwent open surgery. Laparoscopic surgery accounted for 9.3%, while robotic surgery was used in 3.0% of cases. Notably, the adoption of the robotic approach showed a significant upward trend, increasing from 1.7% in 2016 to 4.2% in 2020. This indicates a growing clinical confidence in robotic platforms for HPB procedures.
Comparative Hospital Charges
The unadjusted median hospital charges were highest for open surgery ($111,051), followed by robotic surgery ($89,713) and laparoscopic surgery ($77,657). After adjusting for patient demographics, comorbidities, and hospital characteristics, the MIS approaches remained significantly more cost-effective.
Liver-Specific Outcomes
In patients undergoing liver resection, laparoscopic surgery was associated with a substantial reduction in adjusted charges (β -$23,564; 95% CI -$26,014 to -$21,114). The most significant savings were observed among patients with early discharge, suggesting that the efficiency of the laparoscopic approach in facilitating rapid recovery translates directly into financial benefit. Robotic liver surgery also demonstrated lower overall charges compared to the open approach (β -$8,430), although the magnitude of the reduction was smaller than that of the laparoscopic group.
Pancreas-Specific Outcomes
The economic benefits of MIS were even more pronounced in pancreatic surgery. Laparoscopic pancreatic resection was associated with an adjusted charge reduction of $52,120. Robotic pancreatic surgery also showed a significant advantage, with adjusted charges being $30,758 lower than those for open surgery. These findings challenge the notion that the high cost of robotic disposables and maintenance makes it more expensive for complex foregut procedures.
Predictors of High Charges
The study identified complications and late discharge as the most potent predictors of increased hospital charges. The occurrence of a postoperative complication increased charges by an average of $83,816, while a late discharge (defined as exceeding the median length of stay) added $82,039. Because MIS is statistically linked to lower rates of complications and shorter stays, the reduced charges associated with laparoscopic and robotic surgery are likely mediated by these improved clinical outcomes.
Expert Commentary
The findings from this study provide a compelling economic argument for the expansion of minimally invasive HPB surgery. For years, the ‘robotic tax’—the higher cost of the robot itself—has been a focal point of criticism. However, this research suggests that we must look beyond the operating room supply list. When considering the total hospital charge, the clinical benefits of MIS (fewer wound infections, less intraoperative blood loss, and faster return of bowel function) lead to a substantial reduction in the utilization of hospital resources.
It is important to note the study’s limitations. Hospital ‘charges’ do not always reflect actual hospital ‘costs’ or the amount reimbursed by payers. Furthermore, the NRD lacks specific granular data on surgeon experience or specific oncological markers. However, the sheer volume of the data and the use of quantile regression provide a high level of statistical confidence in the general trend: MIS is not only clinically viable but also economically superior in a large-scale hospital setting. The fact that open surgery still accounts for nearly 88% of cases suggests a significant opportunity for quality improvement and cost reduction through increased MIS training and adoption.
Conclusion
In summary, laparoscopic and robotic approaches to liver and pancreatic surgery are associated with lower hospital charges compared to the traditional open approach. The economic advantage is largely driven by the ability of MIS to minimize postoperative complications and facilitate earlier discharge. As healthcare systems continue to move toward value-based models, the adoption of minimally invasive techniques in HPB surgery should be promoted as a standard of care that benefits both the patient’s recovery and the hospital’s bottom line.
References
Alizai Q, Chatzipanagiotou OP, Mevawalla A, et al. Trends and predictors of hospital charges in liver and pancreatic surgery: A comparative analysis of open, laparoscopic, and robotic approaches. Surgery. 2026;193:110121. PMID: 41791351.