A preliminary experimental study on the effect of adjustable pulmonary artery banding contraption on pulmonary arterial blood flow
Peng Bo
Wang Qiang
Jiang Xianchao
Fan Fan
Yi Tong
Abstract：Objective To verify the effect of adjustable pulmonary artery banding contraption on pulmonary arterial blood flow.Methods Twenty Chinese miniature pigs were randomly divided into control group and observation group,with 10 pigs in each group.After implantation of adjustable pulmonary artery banding contraption,the observation group had progressive ring contraction at pulmonary artery with guidance of ultrasonic monitoring;the differential pressure of ring contraction was 30 mmHg;the control group was not treated by ring contraction.Hemodynamic changes were observed.Results Differential pressure of ring contraction in observation group could achieve 30-35 mmHg by water injection;blood oxygen saturation was 94％.Transcontraption pulmonary arterial blood flow velocity was significantly faster,differential pressure was significantly higher and blood oxygen saturation was significantly lower in observation group than those in control group [(2.47 ± 1.17)m/s vs (0.40 ±0.ll)m/s,(30.2 ±3.4) mmHg vs (3.2 ± 1.0) mmHg,(92.0 ±2.1)％ vs (100.0 ±0.0)％] (P＜ 0.05).Conclusion The adjustable pulmonary artery banding contraption is effective in controlling pulmonary blood flow.
Keywords：Congenital heart diseasePulmonary artery banding
Publication Date：2018-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：4( 372-375 )