Properties, characteristics and applications of microbubbles for sonothrombolysis
2014
Introduction: Ultrasound enhancement of thrombolysis (sonothrombolysis) is further potentiated by administration of acoustically active microbubbles, which may be developed into powerful adjuvant therapies for thrombolytic treatment of occlusive conditions such as ischaemic stroke. Areas covered: The role of microbubbles in sonothrombolysis is evaluated based on published in vitro and in vivo evidence and a critical review of clinical trials to date. Microbubble, ultrasound and drug parameters compiled from a broad search of the existing literature are tabulated. Mechanisms of microbubble-enhanced sonothrombolysis are discussed, with particular focus on acoustic cavitation and thermal effects. A number of challenges to widespread clinical adoption are identified. Key factors for future optimisation of treatment and microbubble design are proposed. Expert opinion: Microbubble enhancement of thrombolysis is supported by a broad range of in vitro and in vivo evidence that demonstrates improved lysis compared...
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