Mechanism clinical feature Neuro-psychogenic dyspnea Dyspnea may occur in the patients suffering from cerebrovascular diseases (intracranial hemorrhage, elevated intracerebral pressure). The respiratory center loses the blood supply or is compressed. The respiration becomes deep, slow and irregular. In some cases the dyspnea may be psychogenic which is characterized by repetitive deep, sighing respiration with numbness of extremities or lips, cheiropedal spasm These are also manifestations of acute respiratory alkalosisMechanism & clinical feature • Neuro-psychogenic dyspnea Dyspnea may occur in the patients suffering from cerebrovascular diseases (intracranial hemorrhage, elevated intracerebral pressure). The respiratory center loses the blood supply or is compressed. The respiration becomes deep, slow and irregular. In some cases the dyspnea may be psychogenic, which is characterized by repetitive deep, sighing respiration with numbness of extremities or lips, cheiropedal spasm. These are also manifestations of acute respiratory alkalosis