Does transnasal pituitary tumor surgery cause much damage to the posterior pituitary lobe?

　　Patient: prolonged menstrual cycle, no significant decrease in menstrual flow, dizziness, reduced visual field on the right side, lactation in the squeezed breast, blood pressure 98/58 mmHg, heart rate 58 beats/min, mild edema, weight gain, untreated. Is there much damage to the posterior pituitary gland from transnasal surgery? Is postoperative hormone therapy indicated?　　Doctor: The damage to the pituitary gland from transnasal surgery is not great. The damage to the posterior lobe is usually temporary and most of it can be recovered. Hormone replacement therapy is needed for a short time after surgery.