Proportion of pulmonary valve annulus: A new predictive index for transannular patch in repair of tetralogy of Fallot
10.7507/1007-4848.201809043
- VernacularTitle:肺动脉瓣环占比：法洛四联症根治术跨瓣补片的预测指标
- Author:
CAI Xiaowei
1
;
ZHAO Junfei
2
;
LIU Xiaobing
2
;
CHEN Jimei
2
;
CEN Jianzheng
2
;
WEN Shusheng
2
;
XU Gang
2
;
CUI Hujun
2
;
QIU Hailong
1
;
ZHUANG Jian
3
,
4
Author Information
1. Department of Cardiac Surgery, Guangdong General Hospital Affiliated to South China University of Technology, Guangzhou, 510100, P.R.China
2. Guangdong Cardiovascular Institute, Guangzhou, 510080, P.R.China
3. 1. Department of Cardiac Surgery, Guangdong General Hospital Affiliated to South China University of Technology, Guangzhou, 510100, P.R.China
4. 2. Guangdong Cardiovascular Institute, Guangzhou, 510080, P.R.China
- Publication Type:Journal Article
- Keywords:
Tetralogy of Fallot;
transannular patch;
pulmonary valvular annulus;
z-score;
proportion of pulmonary valvular annulus
- From:
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
2019;26(4):316-320
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate if the ratio of pulmonary valve annulus, which is the proportion of pulmonary valvular annulus size to total size of aortic valvular annulus and pulmonary valvular annulus, can better guide the choice of surgical approach than the value of z. Methods A retrospective analysis was made for 254 patients who underwent total correction of tetralogy of Fallot in Guangdong General Hospital between January 2016 and January 2018. There were 154 males and 100 females with an average age of 14.60±18.76 years. The patients were categorized into two groups, a transannular patch group (TAP, n=164) and a non-TAP group (n=90). The sizes of pulmonary and aortic valvular annulus were evaluated in each group, and the cutoff value of proportion of pulmonary valvular annulus for TAP was calculated. Results Both proportion of pulmonary valvular annulus and z-scores were smaller in the TAP group than those in the non-TAP group (0.29±0.06 vs. 0.36±0.06, P<0.001; –4.04±2.13 vs. –2.06±1.84, P<0.001, respectively). In receiver operating characteristics analyses, proportion of pulmonary valvular annulus and the z-score cutoff values were 0.353 (area under the curve 0.781, 95%CI 0.725–0.831) and –2.13 (area under the curve 0.766, 95%CI 0.709–0.817), respectively, demonstrating that the proportion of pulmonary valvular annulus was a more powerful diagnostic tool as a predictor of TAP. Conclusion Our results suggest that the proportion of pulmonary valvular annulus is an effective predictor for TAP and can be easily applied to clinical practice.
