New Research from Dr. Greg Marchand: Evaluating the Impact of Robotic Assistance in Single-Site Hysterectomy

The Marchand Institute for Minimally Invasive Surgery is pleased to highlight a significant new publication from our lead researcher, Dr. Greg Marchand. Appearing today in the Journal of Gynecology Obstetrics and Human Reproduction (JOGOH), this paper provides a rigorous, data-driven look at the current state of single-incision surgery.

The meta-analysis, titled “Comparison of the Efficacy and Safety of Single-Site Laparoscopic Hysterectomy with and without Robotic Assistance: A Meta-Analysis,” arrives at a critical time as hospitals and surgical centers continue to invest heavily in robotic platforms. Dr. Marchand’s research seeks to answer a fundamental question: Does the added technology of a robot translate into measurable clinical benefits for the patient in single-site procedures?

Access the Full Research

For clinicians and researchers interested in the methodology and full data set, the paper is available through the following portals:

PubMed (NCBI): PMID: 41713553
Official Journal Link: JOGOH / ScienceDirect

The Objective: Refining the Single-Site Approach

Single-site surgery—where an entire hysterectomy is performed through a single incision in the umbilicus—represents the pinnacle of minimally invasive gynecology. While the cosmetic results are excellent, the technique is notoriously difficult due to the “clashing” of surgical instruments in a restricted space.

To overcome these hurdles, two main paths have emerged:

Laparoendoscopic Single-Site Hysterectomy (LESS-H): Traditional laparoscopy using specialized ports.
Robotic Single-Site Hysterectomy (RSSH): Utilizing robotic platforms to restore ergonomics and 3D visualization.

Dr. Marchand and his team conducted this meta-analysis to determine if the robotic approach actually improves surgical outcomes, such as operative time, blood loss, and patient recovery, compared to the non-robotic method.

Study Highlights and Statistical Findings

By synthesizing data from comparative studies across several years, Dr. Marchand’s research provides a clear, objective comparison of these two modalities.

1. Operative Efficiency

One of the most notable findings in the paper involves operative time. For benign hysterectomies, the robotic-assisted approach (RSSH) was found to be significantly slower than the traditional laparoscopic approach (LESS-H).

Mean Difference: RSSH took an average of 23.51 minutes longer than LESS-H.
Statistical Significance: $MD = 23.51$ , $95\% CI: [5.85, 41.17]$ , $p = 0.009$ .

While the robotic platform is often touted for its precision, this data suggests that for benign cases, the time required for robotic docking and setup may outweigh its intraoperative speed.

2. Estimated Blood Loss (EBL)

The study did find a statistically significant reduction in blood loss with the robotic approach. However, Dr. Marchand notes that the clinical significance of this finding is minimal.

Reduction: RSSH resulted in roughly 6.84 ml less blood loss ( $p = 0.01$ ).
Clinical Context: In the context of a hysterectomy, a difference of less than 7 milliliters (about one and a half teaspoons) does not typically influence patient recovery or the need for transfusions.

3. Patient Recovery and Pain

Crucially, the study found no difference in the outcomes that matter most to patients:

Postoperative Pain: Visual Analog Scale (VAS) scores at 1 hour and 12 hours were virtually identical between the robotic and non-robotic groups.
Hospital Stay: Length of stay was consistent across both cohorts, suggesting that the use of a robot does not necessarily lead to a faster discharge.
Complications: There were no significant differences in complication rates or conversion to open surgery.

Clinical Significance: A Perspective from Dr. Marchand’s Research

The conclusions drawn in this paper are vital for hospital administrators and surgeons who are weighing the costs and benefits of robotic surgery. Dr. Marchand’s work suggests that for the majority of benign hysterectomies, a skilled surgeon can achieve identical clinical outcomes using traditional laparoscopic single-site techniques, often in less time and at a lower cost to the healthcare system.

The data does hint at a possible advantage for robotic assistance in specialized cases, such as early-stage endometrial carcinoma, where the robot’s precision during complex dissections may eventually prove superior. However, for the standard of care in benign cases, the study reinforces the efficiency of the non-robotic approach.

About the Research Team

This paper is the result of a collaborative effort led by Dr. Greg Marchand, incorporating the work of researchers from several leading institutions, including:

The University of Arizona College of Medicine (Phoenix & Tucson)
Creighton University School of Medicine
Midwestern University

The Marchand Institute remains committed to publishing high-impact research that helps surgeons make evidence-based decisions in the operating room.

Looking Forward

As the field of Minimally Invasive Gynecologic Surgery (MIGS) continues to evolve, Dr. Marchand and the Institute will continue to evaluate emerging technologies against established “gold standards” to ensure that patient safety and surgical efficiency remain at the forefront of the specialty.