Evaluation methods
All patients were hospitalized for seven days after surgery and
telephoned for follow up. The operative time was recorded from cutting
mucosa to finishing hemostasis. Postoperative pain was recorded through
visual analogue scale (VAS) at 8 AM on the first, third, seventh and
fourteenth postoperative days. Pain severity was scored from 0 to 10,
which 0 means no pain and 10 means the most severe pain(4).
The pseudomembrane growth and shedding time were observed and recorded
by the same observer at 8 AM every morning. The pseudomembrane growth
time was recorded as tonsil fossa was completely covered by white
fibrous membrane. The time when the white fiber membrane completely
falls off is the pseudo-membrane fall off time.
Intraoperative bleeding loss is
calculated by fluid volume of suction bottle and the weigh of cotton
ball pre and post the surgery. Record whether the patient has bleeding
from the first day to the fourteenth day after surgery.