Medical News Observer

Key Points:

• BioSUM is a medical technology that uses a mix of pH-responsive hydrogel and ultrasound to identify spacing changes between embedded metal discs. This helps detect potential postoperative leaks.
• The device does not require surgical removal as it is bioabsorbable. This allows for non-invasive monitoring of a patient after surgery. By avoiding additional surgery, the device offers a safer and simpler way of post-surgical monitoring.
• BioSUM has been demonstrated effectively in vivo on animal models, particularly pigs. Its adaptability in various gastrointestinal organs highlights its potential for broad application in improving postoperative care. This aligns with the trend toward advanced, personalized health monitoring technologies.

Researchers have innovated a pioneering solution to address the critical issue of postoperative leaks following gastrointestinal surgery. This complication poses a significant risk to patients during the recovery period. These leaks, which typically manifest between three to seven days post-surgery, can lead to fatal outcomes if not identified and treated promptly. 

BioSUM – bioresorbable, shape-adaptive, ultrasound-readable materials structure

The challenge of early detection of such leaks has led to the development of a novel device named “BioSUM.” This device is a bioresorbable, shape-adaptive, ultrasound-readable structure designed for real-time monitoring of pH changes within deep tissues indicative of potential leaks. 

Comprising small metal discs embedded within a pH-responsive hydrogel, BioSUM operates by measuring the variation in distance between the discs via ultrasound. This change in spacing, triggered by the hydrogel’s reaction to pH alterations caused by leaks, signals the presence of a complication, thus enabling timely intervention to prevent further organ damage.

The versatility of the BioSUM device is highlighted by its ability to adapt to the specific pH ranges of various gastrointestinal organs, including the stomach, small intestines, and pancreas. This allows for broad applicability across different surgical contexts. 

The device was demonstrated effectively in vivo in small and large animal models, including pigs. The technology promises to significantly improve post-surgical outcomes by enabling early intervention and eliminating the need for surgical removal due to its bioresorbable nature. 

Implications

This advancement represents a significant step in monitoring postoperative recovery and managing potential complications efficiently. As noted by the researchers, this innovation aligns with the growing trend toward precise, personalized, and convenient health monitoring technologies. By fitting into a broader range of emerging diagnostic tools, such as capsule-based diagnostics and ophthalmic imaging, BioSUM enhances disease monitoring and management capabilities, marking a pivotal step forward in improving patient outcomes.

References

Liu, Jiaqi, Naijia Liu, Yameng Xu, Mingzheng Wu, Haohui Zhang, Yue Wang, Ying Yan, et al. “Bioresorbable Shape-Adaptive Structures for Ultrasonic Monitoring of Deep-Tissue Homeostasis.” Science 383, no. 6687 (March 8, 2024): 1096–1103. https://doi.org/10.1126/science.adk9880.