Multi-section ultrasonic diagnosis and classification of congenital clubfoot / 中华超声影像学杂志

Objective:To evaluate and analyze the ultrasonic findings of idiopathic clubfoot and positional clubfoot deformities.Methods:Forty-nine newborn babies with congenital clubfoot were examined in the Department of Ultrasound of the Third Affiliated Hospital of Zhengzhou University from December 2020 to January 2022, Including 21 newborn babies(32 feet) with idiopathic clubfoot, and 28 babies(53 feet) with positional clubfoot. Twenty-two normal infants in the same period and the normal feet of the single clubfoot were selected as control group. The distance between medial malleolus and scaphoids of all feet were measured by ultrasound. The distance from the tangent line of the lateral edge of calcaneus to the midpoint of the lateral edge of the chondroid bone, medial soft tissue thickness and tibial calcaneal angle were measured by ultrasound. The data of idiopathic clubfoot group, positional clubfoot group and control group were statistically analyzed.Results:A total of 71 newborn babies with 142 feet were evaluated.The idiopathic clubfoot group had born and joint changes in the medial, lateral and posterior side, and the differences were statistically significant compared with the control group (all P<0.05). Compared with the control group, there were statistically significant differences in the medial and lateral side of the positional group(all P<0.05). But no significant changes in the posterior side( P>0.05). There were significant differences between medial and posterior side of idiopathic and positional clubfoot group (all P<0.05), but no significant differences in lateral side ( P>0.05). Conclusions:Ultrasonography can clearly display the tarsus bones in clubfoot, and observe the deformity changes of the idiopathic clubfoot and positional clubfoot.

Changes of drug-resistance clone of common serotype Streptococcus pneumoniae isolates in China / 中华实用儿科临床杂志

Streptococcus pneumoniae is the leading pathogen of community-acquired infections in children, and can cause invasive and noninvasive diseases.Due to the overuse of extensive use of antimicrobial agents in recent years, the problem of drug resistance of Streptococcus pneumoniae caused by the resistance clone alternatives becomes increasingly serious.The promotion of vaccine and rational use of antibiotics play an important role in controlling the spread of drug-resistant clones of Streptococcus pneumoniae.