Advancing Therapeutic Solutions for Burn Wounds: Potential Use of Noninvasive Ultrasound-Driven Splenic Stimulation

Significance: Burn wound injuries are a global health challenge, affecting millions annually and resulting in significant morbidity, mortality, and economic burden. The urgent need for accessible and cost-effective therapeutic alternatives, especially for underserved populations, has driven interest in novel approaches such as noninvasive splenic stimulation using pulsed-focused ultrasound (pFUS). This technique targets systemic inflammation, a key factor in delayed wound healing, offering a potential shift in burn care management. Recent Advances: Preclinical studies have shown that pFUS applied to the spleen can accelerate wound healing by activating the cholinergic anti-inflammatory pathway, promoting pro-angiogenic and anti-inflammatory responses. While current treatments—including biologics, antioxidants, and growth factors—have limitations, pFUS presents a noninvasive alternative. One interventional study and ongoing clinical trials are now investigating its application in burn wound care, marking an important step toward clinical translation. Critical Issues: Despite encouraging results, research on splenic stimulation for wound healing remains limited. The small number of studies highlights the need for further investigation into the underlying mechanisms, optimal treatment parameters, and potential risks. Additionally, the scalability and cost-effectiveness of pFUS in diverse clinical settings require thorough evaluation. Future Directions: Ongoing clinical trials will provide critical data on the efficacy and safety of splenic pFUS in burn patients. Future research should focus on expanding clinical studies, refining stimulation protocols, and exploring its broader application in tissue repair. If validated, this approach could offer a cost-effective, noninvasive treatment, particularly valuable in socioeconomically challenged regions.