Lee Cory, Zavala-Garcia Abraham, Teekappanavar Neha, Lee Catherine, Idowu Olajire, Kim Sunghoon
Division of Pediatric Surgery, UCSF Benioff Children's Hospital, 744 52nd Street, Suite 4100, Oakland, CA, 94609, USA.
Pediatr Surg Int. 2017 Jan;33(1):65-67. doi: 10.1007/s00383-016-3996-9. Epub 2016 Oct 8.
Pectus excavatum (PE) is a chest deformity characterized by marked sternal depression. The objective of this study was to quantify the sternal curvature observed in patients diagnosed with PE using the sternal curvature angle (SCA).
A retrospective review of lateral chest X-rays of patients with PE from 2006 to 2013 was performed. The SCA was measured in a manner similar to the method of Cobb's angle is used to measure spinal curvature. SCA and Haller index were calculated from the chest X-rays for all patients.
Lateral chest X-rays of 202 PE and 196 normal control patients were analyzed. The mean SCA ± SD of PE patients was 40.56° ± 12.88° compared to 22.02° ± 7.65° for normal patients. The difference was statistically significant with a p value of <0.0001. No significant concordance between SCA and Haller index measurements in the PE group was found (Kendall τ = -0.00015, p value = 0.9975).
The difference in sternal curvature as measured by the sternal curvature angle between the pectus excavatum and normal patients was statistically significant. Our data suggest that sternal depression evident in PE patients is not a simple linear depression of the sternum but due to curvature in the sternal body.
漏斗胸（PE）是一种以明显胸骨凹陷为特征的胸部畸形。本研究的目的是使用胸骨曲率角（SCA）对诊断为PE的患者所观察到的胸骨曲率进行量化。
对2006年至2013年PE患者的胸部侧位X线片进行回顾性分析。SCA的测量方式类似于用于测量脊柱曲率的Cobb角测量方法。计算所有患者胸部X线片的SCA和Haller指数。
分析了202例PE患者和196例正常对照患者的胸部侧位X线片。PE患者的平均SCA±标准差为40.56°±12.88°，而正常患者为22.02°±7.65°。差异具有统计学意义，p值<0.0001。在PE组中，未发现SCA与Haller指数测量值之间存在显著一致性（Kendall τ = -0.00015，p值 = 0.9975）。
漏斗胸患者与正常患者之间通过胸骨曲率角测量的胸骨曲率差异具有统计学意义。我们的数据表明，PE患者中明显的胸骨凹陷并非胸骨的简单线性凹陷，而是由于胸骨体的曲率所致。
