Characterizing advanced stapling technique using objective performance indicators in robotic-assisted sleeve...

Area of Science:

• Minimally Invasive Surgery
• Surgical Technology
• Bariatric Surgery

Background:

• Objective metrics for optimal sleeve shape and staple line formation in robotic sleeve gastrectomy are limited.
• This study introduces a novel method using advanced stapler-specific metrics to analyze robotic sleeve gastrectomies.

Purpose of the Study:

• To develop and validate objective metrics for assessing stapling technique in robotic sleeve gastrectomy.
• To correlate these metrics with postoperative complications such as leaks and bleeding.

Main Methods:

• Retrospective analysis of 344 robotic sleeve gastrectomies using the da Vinci Xi system and Intuitive Data Recorder (IDR).
• Collected data included stapler technique (pitch, yaw) and staple line formation (cartridge height, fire duration, pause for compression).
• Univariate and multivariate analyses were used to assess associations between stapler metrics and outcomes (obstructive complications, bleeding).

Main Results:

• Fifteen patients (4.4%) experienced obstructive complications (leaks, postoperative intolerance).
• A ten-degree increase in absolute pitch during the first staple fire was linked to an 89% higher risk of obstructive complications (OR=1.89, p<0.001).
• Staple height and pause for compression were not associated with bleeding, but may correlate with leaks in later staple fires.

Conclusions:

• This study pioneers the association of objective, stapler-specific metrics with clinical outcomes in robotic sleeve gastrectomy.
• Further research using these objective metrics can help standardize surgical technique and enhance patient outcomes.