Annals of vascular surgery · 2025
Research Progress in Biodegradable Filters.
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Cai Yandong, Chen Bo, Li Yankui
Аннотация
BACKGROUND: To mitigate the risk of pulmonary embolism, inferior vena cava filter (IVCF) placement is occasionally necessary. With the increasing clinical use of these filters and the extension of filter retention periods, complications have progressively emerged, including filter migration, deformation, vascular wall damage, and inferior vena cava (IVC) obstruction. In addition, lifelong anticoagulant therapy is often essential. Althoigh retrievable IVCFs can be surgically removed, these procedures are costly and carry risks such as retrieval failure and vascular injury.
METHODS: According to the literature, there are differences in the percentages of adverse events associated with the removal of retrievable IVCFs, as outlined below. Research by Chen Guang et al. revealed that in 261 cases of IVCF retrieval, 3 patients had filters that adhered to the venous wall, making it impossible to remove the filter directly via the retrieval device guided by the catheter. The procedure is modified to use a retrieval device-assisted stiff guidewire method to pull the retrieval hook, successfully removing 2 filters. In 1 case, the procedure was terminated because of severe pain experienced by the patient during the retrieval process, and the percentage of adverse events associated with the removal of retrievable IVCFs was 0.38% (1/261). Mary C. Proctor demonstrated that the percentages of retrieval problems in the Gunther Tulip, OptEase, and Recovery filters are 2-20%, 0-27%, and 0-18%, respectively. Through comprehensive evaluation of both preclinical and clinical trial data, the biocompatibility and therapeutic efficacy of biodegradable filters have been proven, demonstrating the advantages of biodegradable filters over traditional IVCFs.
RESULTS: Consequently, the study of biodegradable filters has gained significance. Advances in materials science have positioned biodegradable (or absorbable) filters as a research focal point in recent years.
CONCLUSION: Current research indicates that biodegradable filters ensure both safety and efficacy, offering significant application potential. This review provides a comprehensive overview of the research advancements in biodegradable filters.
METHODS: According to the literature, there are differences in the percentages of adverse events associated with the removal of retrievable IVCFs, as outlined below. Research by Chen Guang et al. revealed that in 261 cases of IVCF retrieval, 3 patients had filters that adhered to the venous wall, making it impossible to remove the filter directly via the retrieval device guided by the catheter. The procedure is modified to use a retrieval device-assisted stiff guidewire method to pull the retrieval hook, successfully removing 2 filters. In 1 case, the procedure was terminated because of severe pain experienced by the patient during the retrieval process, and the percentage of adverse events associated with the removal of retrievable IVCFs was 0.38% (1/261). Mary C. Proctor demonstrated that the percentages of retrieval problems in the Gunther Tulip, OptEase, and Recovery filters are 2-20%, 0-27%, and 0-18%, respectively. Through comprehensive evaluation of both preclinical and clinical trial data, the biocompatibility and therapeutic efficacy of biodegradable filters have been proven, demonstrating the advantages of biodegradable filters over traditional IVCFs.
RESULTS: Consequently, the study of biodegradable filters has gained significance. Advances in materials science have positioned biodegradable (or absorbable) filters as a research focal point in recent years.
CONCLUSION: Current research indicates that biodegradable filters ensure both safety and efficacy, offering significant application potential. This review provides a comprehensive overview of the research advancements in biodegradable filters.