MRCP2-4432

A 60-year-old man with known severe emphysema presents to the emergency department with breathlessness and is diagnosed with a non-infective exacerbation of chronic obstructive pulmonary disease. This is his 4th exacerbation this year. He mentions that he has been referred by his respiratory team for lung volume reduction surgery and is waiting for an appointment. What factors would disqualify him as a candidate for this surgery?