Objectives:To introduce a novel clinical application of Simmons catheter to enter through right ventricular outflow tract(RVOT) for percutaneous balloon pulmonary valvuloplasty(PBPV) of critical pulmonary stenosis(CPS...
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Objectives:To introduce a novel clinical application of Simmons catheter to enter through right ventricular outflow tract(RVOT) for percutaneous balloon pulmonary valvuloplasty(PBPV) of critical pulmonary stenosis(CPS)or pulmonary atresia with intact ventricular septum(PA/IVS) in young infants,and compare its efficacy and safety with conventional floating ***:32 young infants that received interventional therapy of PBPV in a single center were retrospectively reviewed from November 2012 to November 2014,including 26 cases of CPS and 6 cases of PA/*** were divided into two groups according to the types of catheters to enter through RVOT,which were the Simmons catheter group(n=25) and the floating catheter group(n=7).Basic patient characteristics,total fluoroscopy time,fluoroscopy time of entering into RVOT,success rate of catheterization,short and medium term curative effect,incidences of complications and hospital length of stay(HLOS) were recorded and compared between the two ***:There were 4 cases of PA/IVS and 21 cases of CPS in the Simmons catheter group,and 2 cases of PA/VIS and 5 cases of CPS in the floating catheter *** the unique structure of Simmons catheter,it could be manoeuvred directly into RVOT within a few *** the Simmons catheter group,the mean day age at surgery was 32.5 ±21.7 days and the mean weight was 3.5 ± 0.7 kg,including 4 cases of premature infants with the lowest weight at the time of surgery of 1890 *** with floating catheter group,the Simmons catheter group had much shorter exposure time of entering pulmonary artery(P<0.001),less total X-ray exposure time(P<0.001),lower day age at the time of surgery(P=0.138),and better success rate of surgery(<0.001).Conclusions:Simmons catheter is a safe and effective method to enter through RVOT in infants with CPS or PA/*** its shorter procedure and fluoroscopy time compared with conventional floating catheter,Simmons catheter could be a bet
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