| 4. | If left untreated , it is associated with oxygen desaturation , hypercapnia , and hypopnea , which can lead to significant cardiovascular problems ( e . g . , systemic and pulmonary hyper tension , cor pulmonale , and right ventricular failure )
如不治疗，会并发血氧饱和度下降、高碳酿血症和呼吸减慢，从而导致严重的心血管疾病（如系统性和肺动脉高压、肺心病和右心室衰竭） 。 |
