Wu Ha, Zhao Xiaofei
Department of Nuclear Medicine, Children's Hospital of Fudan University, Shanghai, People's Republic of China.
Nucl Med Commun. 2018 Jun;39(6):505-510. doi: 10.1097/MNM.0000000000000836.
A salivagram is often used to detect pulmonary aspiration, whereas chest radiography is often used to diagnose pneumonia. This study analysed the relationship between pulmonary aspiration and aspiration pneumonia in children, and the differences between lungs.
The salivagram and chest radiography results of 696 children (466 boys and 230 girls; aged 1-54 months; mean age, 4.7 months; median age, 3 months) diagnosed with respiratory tract infections between December 2013 and June 2017 were retrospectively analysed. Patients were classified as positive or negative on the basis of their salivagram results, and the radiography positivity rates were analysed.
Among all paediatric patients, 197 were salivagram positive and 499 were salivagram negative. The positivity rate was 28.3% (197/696); the positivity rate of the right side was 98.0% (193/197). The radiography positivity rates of the right side in the positive group, negative group and the total sample were 84.3% (166/197), 69.5% (347/499) and 73.7% (513/696), respectively. The radiography positivity rates of the left side were 69.5% (137/197), 68.5% (342/499) and 68.8% (479/696), respectively. Inter-group comparisons of the radiography positivity rates of the right side showed significant differences between the positive group and the total sample, as well as between the positive and negative groups (P=0.001 and 0.000, respectively). There were no significant differences in the radiography positivity rates of the left side (P=0.846 and 0.796, respectively). The radiography positivity rate of the right side in the positive group was 14.8% higher than that in the negative group.
Pulmonary aspiration tends to occur in the right side and only increases the risk of right-sided pneumonia.
唾液造影常用于检测肺误吸，而胸部X线摄影常用于诊断肺炎。本研究分析了儿童肺误吸与误吸性肺炎之间的关系以及两肺之间的差异。
回顾性分析2013年12月至2017年6月期间诊断为呼吸道感染的696例儿童（466例男孩和230例女孩；年龄1 - 54个月；平均年龄4.7个月；中位年龄3个月）的唾液造影和胸部X线摄影结果。根据唾液造影结果将患者分为阳性或阴性，并分析X线摄影阳性率。
在所有儿科患者中，197例唾液造影阳性，499例唾液造影阴性。阳性率为28.3%（197/696）；右侧阳性率为98.0%（193/197）。阳性组、阴性组及总样本中右侧的X线摄影阳性率分别为84.3%（166/197）、69.5%（347/499）和73.7%（513/696）。左侧的X线摄影阳性率分别为69.5%（137/197）、68.5%（342/499）和68.8%（479/696）。右侧X线摄影阳性率的组间比较显示，阳性组与总样本之间以及阳性组与阴性组之间存在显著差异（分别为P = 0.001和0.000）。左侧的X线摄影阳性率无显著差异（分别为P = 0.846和0.796）。阳性组右侧的X线摄影阳性率比阴性组高14.8%。
肺误吸倾向于发生在右侧，且仅增加右侧肺炎的风险。
