Giannini P, Marciano E, Saulino C, Strano C G, Alessio M, Marcelli V, Auletta G
Department of Neuroscience and Interhuman Communication, University Federico II, Naples, Italy.
Eur Arch Otorhinolaryngol. 1997;254 Suppl 1:S30-3. doi: 10.1007/BF02439717.
In a selected sample of patients affected by juvenile rheumatoid arthritis (JRA) little is known about middle ear involvement, even though many synovial joints are affected. Multifrequency tympanometry was used to measure admittance, conductance, susceptance and phase angle at different probe frequencies and resonant frequencies. In all, 35 children with JRA and a control group (30 children) were studied. Findings showed that mean resonant frequency values in all children with JRA were greater than in the control children. The multifrequency tympanometry parameters measured in acute JRA subjects are not different from parameters of remission JRA subjects except for a change in the phase angle. The changes found are due to involvement of the incudomalleolar and incudostapedial joints.
在一组选定的青少年类风湿性关节炎（JRA）患者样本中，尽管许多滑膜关节受到影响，但中耳受累情况却鲜为人知。采用多频鼓室图测量不同探测频率和共振频率下的导纳、电导、电纳和相角。总共对35名患有JRA的儿童和一个对照组（30名儿童）进行了研究。结果显示，所有患有JRA的儿童的平均共振频率值均高于对照儿童。除相角变化外，急性JRA患者测量的多频鼓室图参数与缓解期JRA患者的参数并无差异。所发现的这些变化是由于砧镫关节和砧骨镫骨间关节受累所致。
