Data about hypobaric chamber test in 170 pilots with barosinusitis

Objective To sum up experiences with hypobaric chamber test （HCT） for the function ear and nasal atmosphere pressure in pilots. Methods Data about the ear and nasal sinus barotraumas in 107 hospitalized pilots were collected and statistically analyzed. Results Among the 118 pilots who underwent HCT before treatment,the function of ear atmosphere pressure was normal in 27 （22.9%） and abnormal in 91（77.1%）,while among the 20 pilots who underwent HCT before treatment,the function of nasal sinus atmosphere pressure was normal in 6（30%） and abnormal in 14（70%）. Among the 103 pilots who underwent HCT （113 time） after treatment,the function of ear atmosphere pressure was normal in 55（48.7%） and abnormal in 58（51.3%）,while among 34 pilots who underwent HCT after treatment,the function of nasal sinus atmosphere pressure was normal in 31（91.2%） and abnormal in 3（8.8%） （P＜0.01）. Among the 58 pilots who under HCT for primary ear barotraumas after treatment,the function of ear atmosphere pressure was normal in 17（29.3%） and abnormal in 41（70.7%）,while among the 55 pilots who underwent HCT for secondary ear barotraumas after treatment,the function of ear atmosphere pressure was normal in 17（29.3%） and abnormal in 38（69.1%） and abnormal in 17（30.9%）（P＜0.01）. Conclusion HCT for the function of ear and nasal sinus atmosphere pressure provides important evidence for the diagnosis and treatment of ear and nasal sinus barotraumas.