Cardiac dyspnea is always worsened by exertion and partly or completely relieved by rest.
劳力可加剧心源性呼吸困难，休息则可部分或完全使之缓解。
Dyspnea also results when cardiac output is inadequate for the body's metabolic demands and can occur without pulmonary edema.
当心排血量不能满足身体代谢需要，甚或无肺水肿患者，也可出现呼吸困难。
Conclusion Besides dyspnea, hyperventilation syndrome has many other symptoms as well as cardiac inducement, but it has no abnormal findings in physical and CT examination.
结论过度通气综合征除呼吸困难外还常有其他众多症状，但查体都无异常，且常有明显的心因性诱因。
Dyspnea due to CAD may coexist with that due to another cardiac disease.
由CAD引起的呼吸困难也可与其他疾病引起的呼吸困难同时存在。
Dyspnea due to CAD may coexist with that due to another cardiac disease.
由CAD引起的呼吸困难也可与其他疾病引起的呼吸困难同时存在。
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