Kiaee Seyedeh Zahra Fotook, Rahimi Besharat
Advanced Thoracic Research Centre, Tehran University of Medical Science, Tehran, Iran.
Eur J Transl Myol. 2018 Jul 10;28(3):7556. doi: 10.4081/ejtm.2018.7556.
Exertional dyspnea is a common complaint among patients which may be the final result of many diseases. Few researches have been conducted concerning the role of cardiopulmonary exercise test (CPET) in assessing unexplained dyspnea. Therefore, the aim of this study was a research on unexplained dyspnea using CPET among patients resorting to respiratory test unit of hospitals. This is a cross-sectional study that performed on 100 patients. With the direct supervision of experts, CPET was conducted using ergaspirometery device. The exercise data was interpreted by a pulmonologist and the results were classified into pulmonary diseases, cardiovascular diseases, obesity, deconditioning, and undetermined groups. 100 patients including 57 men and 43 women with an average age of 42 years and an average BMI of 28 and smoking frequency of 12% took part in this research. The following frequencies were reported for each complication: 24% for pulmonary diseases, 23% for cardiovascular diseases, 23% for deconditioning group, 15% for obesity, and 16% for the undetermined group. No significant difference was observed between these five groups in terms of gender distribution and smoking cigarette (P-value > 0.05). In the age group older than 42 years, more patients were diagnosed with cardiac diseases and obesity. CPET may be really useful in determining the cause of unexplained dyspnea among most patients. Furthermore, the CPET can determine the presence or absence of disease, and if present, the nature of the limitation.
劳力性呼吸困难是患者常见的主诉，可能是多种疾病的最终结果。关于心肺运动试验（CPET）在评估不明原因呼吸困难中的作用，相关研究较少。因此，本研究的目的是对前往医院呼吸测试单元的患者进行CPET研究，以探讨不明原因的呼吸困难。这是一项对100名患者进行的横断面研究。在专家的直接监督下，使用运动肺量计设备进行CPET。运动数据由肺科医生解读，结果分为肺部疾病、心血管疾病、肥胖、体能下降和未确定组。100名患者参与了本研究，其中包括57名男性和43名女性，平均年龄42岁，平均体重指数28，吸烟率为12%。每种并发症的发生率如下：肺部疾病24%，心血管疾病23%，体能下降组23%，肥胖15%，未确定组16%。这五组在性别分布和吸烟方面无显著差异（P值>0.05）。在42岁以上的年龄组中，更多患者被诊断患有心脏病和肥胖症。CPET对于确定大多数患者不明原因呼吸困难的病因可能非常有用。此外，CPET可以确定疾病的存在与否，如果存在，还可以确定限制的性质。
