This is similar to epidural infusions used in labour and postoperatively. Sexual activity is typically avoided for 6 weeks postoperatively. Autotransfusion is commonly used intraoperatively and postoperatively. It most commonly seen in horses postoperatively, especially following colic surgery. Follow up is important, because 50% of all recurrences occur within 5 years postoperatively. Other surgeons are concerned that patients with an unresurfaced patella may have increased pain postoperatively. The catheter can be placed at the time of the lumpectomy or postoperatively. This position is also required postoperatively for pneumonectomy patients. Generally, CSFL arises during surgery and can be repaired with no additional related complications postoperatively. Vaginal dilators are required postoperatively to prevent vaginal stenosis from scarring. When the flap has been sutured in position, haemostasis is maintained postoperatively. Ptosis and diplopia can also occur postoperatively, but this usually self-corrects. Some researchers are now formally interviewing patients postoperatively to calculate the incidence of anesthesia awareness. Use of analgesics and sedatives in these patients postoperatively should therefore be minimized or avoided.