Fig. 3.

Relationship between carotid body chemosensitivity and time from surgery (A), hypoglycemia counterregulation (B). A: those patients that underwent carotid body resection most recently exhibited the greatest impairments in chemoreceptor sensitivity to hypoxia (r = −0.835, P = 0.08). B: those patients with the lowest level of chemoreceptor sensitivity (hypoxic ventilatory response) required the greatest amount of glucose infused during the hyperinsulinemic-hypoglycemic clamp (r = 0.798, P = 0.11). Figure originally presented in (52).