My father age is 8o and have enlarged prostate. Now catheter is in place to pass urin since last week. Today we found result reactive of serum hepititus B, hamoglobine level is 7 against 12 minimum value. Some stone in blader also reported in ultrasound report . Liver function test is ok, blood suger random is normal, my question is can we operate either by open or through urine track . Which is best in this age