Publications by authors named "Yao Z Liu"
Background: Though robotic adoption for eTEP surgery has decreased technical barriers to minimally invasive repairs of large ventral hernias, relatively few studies have examined outcomes of robotic-specific eTEP surgery. This study evaluates safety, feasibility, and early outcomes of ERAS/same-day discharge protocols for robotic eTEP ventral hernia repairs.
Methods: A retrospective chart review was performed for all robotic eTEP hernia surgeries at a single institution between 2019 and 2022.
Background: Left-sided colorectal surgery demonstrates high anastomotic leak rates, with tissue ischemia thought to influence outcomes. Indocyanine green is commonly used for perfusion assessment, but evidence remains mixed for whether it reduces colorectal anastomotic leaks. Laser speckle contrast imaging provides dye-free perfusion assessment in real-time through perfusion heat maps and quantification.
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- Researchers investigated how machine learning algorithms can predict complications after colectomy surgery for colonic neoplasia, aiming to enhance accuracy compared to traditional statistical methods.
- The study used data from the National Inpatient Sample database (2003-2017) and included 14,935 adult patients who underwent elective colectomy, analyzing outcomes such as anastomotic leaks and inpatient mortality.
- Among the machine learning models tested—decision tree, random forest, and artificial neural networks—the neural network performed best in predicting complications, achieving high accuracy with area under the receiver operating characteristic curve scores ranging from 0.84 to 0.93 for various outcomes.
Article Synopsis
- Real-time tissue perfusion measurement using Laser Speckle Contrast Imaging can enhance surgical decision-making by revealing ischemic changes in the intestines due to blood flow obstruction.
- In a study with porcine models, the technique effectively distinguished between well-perfused and ischemic bowel segments under various occlusion scenarios.
- Results showed a strong correlation between perfusion measurements and blood pressure changes, demonstrating that Laser Speckle could be used to assess and compare perfusion in different intestinal anastomosis techniques.
Article Synopsis
- Real-time intraoperative perfusion assessment using Laser Speckle Contrast Imaging (LSCI) could potentially minimize anastomotic leaks in surgeries by providing a dye-free visualization of blood flow in the intestines.
- The ActivSight™ system, which can use both LSCI and indocyanine green imaging (ICG), was tested on porcine models to evaluate its effectiveness in quantifying intestinal perfusion under various experimental conditions.
- Results showed that LSCI accurately differentiated between healthy and ischemic bowel regions, with quantification correlating well to blood pressure and the distance from ischemic areas, suggesting it offers a more objective assessment of bowel perfusion than traditional visual methods.
Article Synopsis
- Laser speckle contrast imaging (LSCI) is a technology used in robotic-assisted and laparoscopic surgeries to measure real-time tissue blood flow without the need for dye, offering advantages over traditional imaging methods like indocyanine green (ICG).
- A study involving 67 patients assessed the effectiveness and usability of a new device that combines LSCI and ICG during various surgical procedures, revealing that both methods performed comparably in detecting perfusion.
- Results showed no adverse effects and high usability ratings for surgeons, indicating that LSCI can be safely and effectively integrated into robot-assisted surgeries alongside laparoscopic techniques.