Yonghui Xie, Taoyue Yao, Xiaogang Zhu, Fan Yang, Haoqin Fan, Shirui Cao, Huaiyang Chen, Manzhen Liao, Yuanxi Xia, Jinqiao Liu, Zhenghui Xiao, Zhou Yang, Yunbin Xiao
University of South China. Affiliated Children’s Hospital of Xiangya School of Medicine. Third Xiangya Hospital. Second Xiangya Hospital. Central South University. Changsha Yali High School.
China
Journal of Cardiovascular Translational Research
J Cardiovasc Transl Res 2024;
DOI: 10.1007/s12265-024-10531-9
Abstract
This research aimed to explore whether high-intensity focused ultrasound (HIFU) could conduct pulmonary artery denervation (PADN). HIFU was performed in pulmonary arteries of 6 normotensive rabbits at dose of 250W, 6 times for each rabbit, and an additional 6 rabbits served as controls. Then ATEPH was induced in both groups by intravenous infusion of autogeneic thrombus. Hemodynamics and ultrasonography parameters were measured by right heart catheter and echocardiography pre- and post-establishment of ATEPH models in both groups. Histological analysis and immunohistochemistry of tyrosine hydroxylase (TH) were also performed. After PADN procedures, 5 rabbits were successfully conducted PADN, of which ablation zone was also observed in right auricle or right lung in 4 rabbits. Ablation zone was detected only in right lung in 1 rabbit. Compared with control group, milder right heart hemodynamic changes were found in PADN group, accompanied by improved ultrasound parameters in PADN group. HIFU can acutly damage SNs around pulmonary artery successfully, which may be a new choice to conduct PADN. However, the accuracy of HIFU with PADN needs to be improved.
Category
Medical Therapy. Efficacy or Lack of Efficacy
Medical Therapy. Adverse Effects or Lack of Adverse Effects
Animal Models of Pulmonary Vascular Disease and Therapy
Pulmonary Vascular Pathology
Age Focus: No Age-Related Focus
Fresh or Filed Publication: Fresh (PHresh). Less than 1-2 years since publication
Article Access
Free PDF File or Full Text Article Available Through PubMed or DOI: Yes