Xu Qiu-Chen, Liu Jian-Feng, Xie Min, Weng Zong-Jie, Chen Qiang, Guo Shan
Department of Medical Ultrasonics, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Maternity and Child Health Hospital, Fujian Medical University, Fuzhou, China.
Department of Cardiac Surgery, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Children's Hospital (Fujian Branch of Shanghai Children's Medical Center), Fujian Medical University, Fuzhou, China.
Cardiovasc Ultrasound. 2025 Apr 1;23(1):5. doi: 10.1186/s12947-025-00340-8.
To analyze the echocardiography characteristics of pulmonary artery sling (PAS) and explore the diagnostic value of the distance between the bifurcation of the left and right pulmonary arteries and the pulmonary artery valve annulus (DBP) in diagnosing PAS in children.
This retrospective study analyzed echocardiographic data from 27 children diagnosed with PAS at our hospital from March 2014 to December 2022. The data were compared with those from 77 normal children. The study examined statistical differences between the two groups in the diameters of the left and right pulmonary arteries, the main pulmonary artery valve annulus diameter, and the DBP, both uncorrected and corrected for body surface area (BSA). The diagnostic utility of these measurements for distinguishing children with PAS from those without was assessed using receiver operating characteristic (ROC) curves.
The DBP and the corrected DBP values were significantly higher in the PAS group than in the normal group, with areas under the ROC curve of 0.909 for DBP and 0.951 for DBP/BSA (P < 0.05). A DBP of 1.87 cm as the diagnostic threshold yielded a sensitivity of 98.9% and specificity of 84.4%. A DBP/BSA of 7.68 cm/m had a sensitivity of 98.3% and specificity of 92.2%. The diagnostic odds ratios (OR) were 76.38% and 79.99%, respectively.
The pivotal element in echocardiography diagnosis of PAS is the identification of the spatial relationship between the left pulmonary artery (LPA) and the trachea. The use of quantitative indices such as DBP and DBP/BSA for adjunctive diagnosis can positively impact the early detection of PAS.
分析肺动脉吊带（PAS）的超声心动图特征，探讨左右肺动脉分叉处与肺动脉瓣环之间的距离（DBP）对儿童PAS的诊断价值。
本回顾性研究分析了2014年3月至2022年12月在我院诊断为PAS的27例儿童的超声心动图数据。将这些数据与77例正常儿童的数据进行比较。研究考察了两组在左右肺动脉直径、主肺动脉瓣环直径以及DBP方面的统计学差异，包括未校正和校正体表面积（BSA）后的差异。使用受试者操作特征（ROC）曲线评估这些测量值对区分PAS患儿与非PAS患儿的诊断效用。
PAS组的DBP和校正后的DBP值显著高于正常组，DBP的ROC曲线下面积为0.909，DBP/BSA为0.951（P<0.05）。以1.87 cm的DBP作为诊断阈值，敏感性为98.9%，特异性为84.4%。以7.68 cm/m的DBP/BSA作为诊断阈值，敏感性为98.3%，特异性为92.2%。诊断比值比（OR）分别为76.38%和79.99%。
超声心动图诊断PAS的关键在于识别左肺动脉（LPA）与气管之间的空间关系。使用DBP和DBP/BSA等定量指标进行辅助诊断可对PAS的早期检测产生积极影响。
