作者对本题作了临床和实验室两部分研究。一、临床研究:作者收集了43例病人的上颌窦分泌物,27例为脓性、26例为浆液性分泌物。对12例化脓性和11例浆液性分泌物的氧分压(PO_2) 、二氧化碳分压(PCO_2) 、pH 值、细菌数和炎性细胞数进行了观查,结果如下:1. 在全部化脓性分泌物及半数浆液性分泌物中均有细菌生长(见表Ⅰ),以肺炎双球菌最 The author made a clinical and laboratory two-part study on this topic. First, the clinical study: The authors collected 43 patients with maxillary sinus secretions, 27 cases of purulent, 26 cases of serous secretions. The partial pressure of oxygen (PO_2), partial pressure of carbon dioxide (PCO_2), pH value, bacteria numbers and inflammatory cells in 12 cases of purulent and 11 cases of serous discharge were observed. The results were as follows: 1. Sexual secretions and half of the serous secretions have bacterial growth (see Table I), with pneumococcus