Are falling estradiol levels as a result of intentional reduction in gonadotrophin dose associated with poor IVF outcomes , whereas spontaneously falling estradiol levels result in low clinical pregnancy rates?
Subtle (<10%) spontaneous decreases in estradiol levels are associated with very poor IVF outcomes.
For grafts originating distal to the common femoral artery, stenoses proximal to the graft do not affect bypass graft patency and do not require repair to prevent graft occlusion. Surveillance of these lesions may therefore be unnecessary, inasmuch as the repair of proximal lesions should not be undertaken to preserve graft function.