Department of Oncology, Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
J Thorac Imaging. 2012 Nov;27(6):372-5. doi: 10.1097/RTI.0b013e3182698e99.
The incidence of hiatal hernia (HH) increases with age. Vertebral fracture, kyphosis, and pulmonary emphysema are suspected as possible causes. We aimed to analyze the relationship between thoracic deformities and HH in the elderly, using a deformity index.
The study participants comprised 427 inpatients at a long-term-care hospital for the elderly in Japan. The Haller index (HI) was calculated on the transverse thoracic computerized tomography images according to the following formula: transverse diameter of the thorax/anterior-posterior diameter of the thorax. HH was diagnosed when an intrathoracic stomach was seen on the computed tomography images.
The average HI calculated for all cases and for women--but not for men--decreased with increasing age. HH was diagnosed in 21 patients (4.9%). The incidence of HH in women was higher than in men (male vs. female = 2.0% vs. 7.4%). The mean value of HI in the HH patients (1.651 ± 0.251) was significantly lower than that in non-HH patients (2.345 ± 0.460).
Enlargement of the anterior-posterior diameter of the thorax occurs in the elderly and is associated with the occurrence of HH.
食管裂孔疝(HH)的发病率随年龄增长而增加。脊柱骨折、后凸畸形和肺气肿被认为是可能的原因。我们旨在使用畸形指数分析老年人心胸畸形与 HH 之间的关系。
研究对象为日本一家老年长期护理医院的 427 名住院患者。根据以下公式计算 Haller 指数(HI):胸廓的横径/胸廓的前后径。当 CT 图像上可见胸腔内胃时,诊断为 HH。
所有病例和女性(而非男性)的平均 HI 随年龄增长而降低。21 名患者(4.9%)被诊断为 HH。女性 HH 的发生率高于男性(男性与女性的发生率分别为 2.0%和 7.4%)。HH 患者的 HI 平均值(1.651±0.251)显著低于非 HH 患者(2.345±0.460)。
老年人胸廓前后径增大,与 HH 的发生有关。